Acrylic Rubber-Type waterproofing membrane coating for exterior wall that confers waterproof, is one of effective finish material for building of the steel reinforced concrete.However, the deterioration by the aging of waterproofing membrane coating for exterior wall progresses, and waterproof elastic performance is reduced.So from the results of a survey of the actual construction coating, long-time high performance of waterproof membrane coating for exterior walls could be confirmed.Further, it is considered that the influence of the topcoat material is also large in order to maintain the performance of waterproof membrane coating for exterior wall.Therefore the long-term durability evaluation by the accelerated weathering test was carried out and was able to confirm the superiority of acrylic silicone resin paint.It will be determined that the waterproofing membrane coating material for exterior wall is effective for extension of life of the building.

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Although the waterproofing work of the conventional building had asphalt waterproofing in use, in recent years, urethane coat waterproofing attracts attention from a point with the sufficient maintenance nature about being comparatively cheap, and the shipment is increasing every year. The construction place of waterproofing work has interior space, such as a circumference of exterior space, such as the roof, and indoor water, and various work environment. Therefore, there is concern whether to give a problem to quality, in severe work environment like a summer or winter. This research conducted grasp of the cure time according to temperature and relative humidity of urethane coat waterproofing, physical-properties examination, and fine sight investigation. As a result, since deterioration appeared, each physical properties and fine sight nature report.

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Voluntary guideline for polyurethane membrane waterproofing work in accordance with ordinance on prevention of hazard due to specified chemical substances was proposed and explained in the study. A large number of polyurethane membrane waterproofing works need to keep the ordinance on prevention of hazard due to specified chemical substances. A practical working manual to keep this rule and principle philosophy of the manual were discussed in the paper.

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The most important quality among polyurethane membrane is coat thickness. Application work is subject to the influence of the environment at the time of construction, a worker's skill, a construction method, etc. However, The unevenness of polyurethane membranes thickness and the shortage of thickness may arise, and in order to check it, the film-thickness-measurement inspection is conducted. There are various methods in a film-thickness-measurement inspection, and there are merit and Demerit, respectively.There is little information about the accuracy of the measured value, and reliability, which method should be adopted or judgment is also difficult. This research checks the accuracy of the film-thickness-measurement method of polyurethane membranes, and examines the applicability.

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In order to understand the degradation mechanism of tank lining material caused by kitchen drainage, some investigations and experiments were conducted. The drainage water and the floating substance were sampled from tank, and the principal component analysis of it was conducted. Trace amounts of short-chain fatty acid were detected form the drainage water. Trace amounts of short-chain fatty acid and large amounts of long-chain fatty acid were detected from the floating substance. The experiments that dip epoxy in the drainage water or in the floating substance were carried out. The epoxy degraded remarkably by contact with the floating substance.

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In this report lining material was soaked in the imitation drainage (lower-fatty-acid solution) and the imitation scum(higher fatty acid), and that was estimated appearance, weight, and volume at interval. As a result, it has been large to change in the weight and volume, when it was soaked into higher fatty acid more than into lower-fatty-acid solution. And so it was guessed that the key factor of degradation is not the lower fatty acid contained in drainage but higher fatty acid contained in scum.Moreover, the tendency for degradation speed to change due to the bridge construction density of lining material and the molecular weight of organic acid has been grasped.

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In recent years, with the increase in pet habitation type apartments, a pet's indoor breeding is increasing, and the judicial precedent number in the noise of collective housing has most a pet's cries. While preventing a pet's cry in a dwelling, a pet needs to prevent the sound which feels an excessive stress. With the occurrence of the Great East Japan Earthquake, the usefulness and the limit of an emergency makeshift house are being examined. Disaster victims have various life patterns. Having bred the outdoors or indoor etc. is included by a pet's breeding situation in it. Construction of the emergency makeshift house corresponding to such a life pattern should be considered from the architectural planning stage, and the quality of disaster victims' life must be secured to it. Moreover, "the relief measure guideline of the pet at the time of a disaster" will be enacted from the Ministry of Environment in June, 2013, and a pet's relief activities are needed for an owner's relief support, the harm prevention to the person by a wandering animal, or living environment conservation measures. In this paper, the sound which occurs in the inside and outside of housing is investigated, situation investigation of the makeshift house built in the Great East Japan Earthquake is conducted, acoustic feature evaluation of the building materials which constitute a residence is carried out, and the characteristic of a sound source and building materials is studied in a sound pressure level and frequency.

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When a horrible disaster occurs, design for animal shelter is required functions and facilities to maintain safety for volunteers.There was possibility that Animal with bestial characteristics might be interned in animal shelters installed in Fukushima prefecture after the earth shake of 2011.For this risk, it was proposed for safe and functional design for dog shelter and protection plan against an escape for cat shelter.This report shows the example of the proposal and evaluates from the architectural point of view.

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Recently, It would be necessary that the relationship between the presavation of forest environment and the utilization of waste wooden materials is balanced to conserve the build environment toward the near future. From the standpoint of these backgrounds, some kinds of Wood-based Inorganic External Panels were started to develop these days. In this study, The Wood-based Inorganic External Panels were producing, and the usability, environmentality(thermal insulation, thermal conduction) and fundamental properties of them were evaluated in the experiment. In additions, the calculation of total amount of CO2 emmissions and embodys in the case of applying the external wall panel on single residence were conducted.

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Recently, It would be necessary that the relationship between the management of noize environment and the utilization of building construction methods is balanced to conserve the build environment toward the near future. From the standpoint of these backgrounds, some kinds of finishing constructions such as cutting, pomping, pushing and etc. against some kinds of finishing materials were started to evaluate these days. In this study, The construction tools for finishing materials in building life cycle were setting, and the noize frequency and the total quantities of db and fundamental properties of these tools were evaluated in the experiment.

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This study is a contribution on social cause utilizing marketing efforts (i.e., cause marketing) of the environmental protection products for buildings. It first examined the impact of the product characteristics of infrared reflection coatings (IRCs) on thermal barrier performance for buildings with publicly available data from the Ministry of the Environment. Then, it conducted a questionnaire survey on environmental protection products including IRCs in order to examine consumers' awareness and purchasing behavior for the products. It is found that consumers are heterogeneous with respect to their awareness, behavior and concern about the environment protection and the products for it. For example, consumers who chose IRCs consider that the cost of construction and maintenance is important rather than social responsibility and awareness for environmental protection. Thus, a marketing strategy for the product needs the deliberate segmentations of consumers.

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Intended for earthen wall called "Migaki-Kabe", this study was focused on the production of surface condition glowing. The experiments were carried out by physical measurement of various in the change of the surface state after curing and the change of the surface state of each construction step. In addition, the present study was to examine the origin of the surface state glowing. The present study examined the characteristics of the cracking that occurred after curing.

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An Experimental Study on Carbonation Degradation Preventive Effects of ALC by Coating Materials

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"Pin net construction method" is enumerated in one of the repair constructionmethods to aim at the coming off prevention of the outside wall finish material. The aim of "Pin net construction method" is the one that the fall is prevented by pasting the net from the finish material, and driving the pin in addition. First of all, this was investigated because there was a similar industrial method in this "Pin net construction method". In addition, it was assumed that "Pin net construction method of the industry association of Japan painting method" by the painting of the painting material that was able to be constructed generally was developed. The basis of the idea pastes the net, develops the pin, and general "Pin net construction method" that can make the best use of the driving painting technology is developed. It reports on the investigation and research results this time.

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In this paper, properties of material the clay for wall clay used in the region is examined. As a result, the properties of the clay item admitted that relation is in each region. However was shown clearly that it is not remarkable.

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The final target of this research is the finding eveluation of finishing plaster which is used on concrete buildings. Now, this research can show the result of inspecting of ex-Iwate bank which is an important cultural property in Japan. In addition, it can show the result of study about redundancy for concrete buildings by finishing plaster.

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The heat shield paint is observed recently, as a paint of environment conscious. Japan Painting Contractors Association Technology Committee painting the heat shield paint for road surface under the same conditions.And so we compared verified the heat shield effect of the heat shield paint in the viewpoint of the person of painting business. The product of each manufacturer painted in the iron-made box which becomes the test piece.Temperature measurement of the painted surface and the non painted surface was done, the heat shield effect was verified. And the heat shield effect was verified. This year again,this time we report a research result in verification of the effects on heat shield painting seven years later

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The heat shield paint is observed recently, as a paint of environment conscious.Japan Painting Contractors Association Technology Committee painting the heat shield paint for road surface under the same conditions. And so we compared verified the heat shield effect of the heat shield paint in the viewpoint of the person of painting business.The product of each manufacturer painted in the road surface of the parking zone of the public facilities. After the painting, temperature measurement of the painted surface and the non painted surface was done, the heat shield effect was verified. And the heat shield effect was verified. This time we report a research result in verification of the effects on heat shield painting five years later

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I performed an outdoor exposure examination and, about the wood protection painting materials used for outdoor parts of a wooden landmark architecture such as castles, evaluated weatherability. I did the specimen with six kinds of plans of three kinds of wood protection paint with glue and powdered charcoal, persimmon tannin and powdered charcoal, persimmon tannin and powdered ferric oxide, three kinds of traditional wood protection painting materials that I mixed. I report a result until 7 years.

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The accelerating test method has become to be more important in the evaluating performance for exterior finishing materials. However, as to the resistance performance against stain, there is no practical method for accelerating test, manufacturers of finishing materials have been examining in each manners, so that users as general contractors cannot evaluate the performance of materials on the same level. Therefore, the authors have studied in order to propose the appropriate standard test method. This paper describes the results of the gloss retention and the brightness difference with some species of exterior coating materials measured in the outdoor exposure tests for twelve months.

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In this study, the standard test specimens, as sheet glass with rough surface and poly-tetra-fluoro-ethylene sheet, are in use to evaluate degree of stain in each sites. This paper describes that the results of the gloss retention and the brightness difference with some species of exterior coating materials, measured in the outdoor exposure tests for twelve months. As the results of those, the gloss retention and the brightness difference of the coated specimens showed the difference tendency in each sites. As to the standard test specimen, it was confirmed that the brightness difference of the sheet glass with rough surface and the poly-tetra-fluoro-ethylene sheet nearly corresponded to that of the specimens with coated specimens.

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Super-high-rise housing begins to be constructed from 1970 's, and there is about 1000 houses of stock at present. Large scale repair construction of the 1st time and the 2nd time is performed in recent years, and it's the current state to increase in construction. For the case that super-high building is construction by setting and a resident to construct it, while living, various problems sometimes occur. This research put a questionnaire survey into effect targeted for the construction staff of super-high-rise housing. As a result, a setting cost grasped a relation between the percentage to the whole and choice of the building shape and setting.

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Surface protection ability of specimens consisted of mortar and four kinds of silane penetrant both treated at 5°C, 20°C and 60°C, respectively, was measured after three days curing period. In the case of penetrating depth, it became long when the silane temperature was 5°C and the mortar temperature was raised. On the other hand, it became shot when the mortar temperature was 5°C and the silane temperature was raised. As for the ability defined by ratios of permeability, absorption, carbonation depth and chloride-ion penetration, it improved when the silane temperature was 5°C and the mortar temperature was raised. When the mortar temperature was 5°C and the silane temperature was raised, the ability defined by them declined.

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PCM which stands for “Polymer modified cement mortar” is cardinal material for repairs on building structure. However, several PCM are only available for possessing durability and fire resistance to the purpose. Considering this, some researchers studied properties of PCM in order to adopt the material, in addition, developed a manual which are drafted material selection and construction method by the Building Research Institute in Japan. Difficulty to the solution is still then persisting. This paper evaluate application, finishing, spalling resistance on fir, and thermal conductivity of four type PCMs which are classified total organic matter by some additives composed with fixed polymer content as 35kg/m3. These evaluations finally confirmed the soundness of PCM to the required properties. Developing this evaluation, pre-mixed PCM has been manufactured. This paper also described inspection and quality control, physical properties, durability, and furthermore surface inspection of the trial execution after a year.

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Based upon six multiple eco-indicators such as long service life, resources circulation, reduction of hazardous substances, improvement of environmental and resources capacities, materials efficiency, and health safety, survey research was done on the tendency of changes of environment-conscious building finishing technologies published from 2002 to 2013 as papers in the proceeding of Japan Society of Finishing Technology and Architectural Institute of Japan. Paper numbers about resources circulation decreased after the peak of 2006-2008. Papers about ecomaterials, life cycle assessment, and durability remarkably increased. Eco life-cycle design which connects durability and recycle design will be important in the future. «98 words»

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The solvent fluorine resin paintings are widely used for the surface finish of the aluminum alloy building materials for the long-term durability. In Japan, the powder coatings which doesn't contain the solvent are remarkable, because of the VOC exhaust problem.In the last presentation,we gave an account of the evaluated results about the cured powder coating's film on the aluminum alloy. We experimentally made the powder coating by adding oriented thermosetting fluorine resin with high weather resistance to polyester resin. In this study, we are aiming at practical application of the powder coating, we present next two matters. (1)The outdoor weathering test results for six years in Okinawa.(2)Influence on the coat deposition structure which an electrical property does.

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Powder coating cosisted of thermosetting polyester and thermosetting fluorocarabon that has different characteristics has been noticed. As a result of the hardened film cross section observation, the film has two layer split structure, and wetherable flurocarbon exists in surface layer of the film and mixture of polyester and fluorocarbon that contrubutes the film physical properties exists in the lower layer. In this paper, weatherability of the hardened film that has been kneaed polyester and fluorocarabon powder together is continuously examined. Main results are as follows. (1) The haredened film that has over 10 micrometer-thickness fluorocarbon layer in the film surface shows high gloss retention for 6000-hour sunshine carbonarc weathering test. (2) The haredened film that has over 2 micrometer-thckness fluorocarbon excluded pigment in the film surface and mixed layer of fluorocarabon and polyester included pigment in the film lower has not peeling for 2000-hour QUV weathering test. (3) The haredened film has higher gloss retention than just thermosetting fluorocarbon hardened film for 18-month outdoor exposure test in Okinawa.

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Among the studies on the durability of various coating systems for the aluminum material that is used as an exterior material of the sash, curtain wall, such as building, in (Part 1) previously reported, reported on the durability evaluation of various powder coating system . From outdoor exposure test results, the tendency has been confirmed superiority of fluorine resin system is not observed in the high humidity environment under ultraviolet light a large amount, as this factor, radical production by the photocatalytic reaction of titanium oxide is a pigment is the degradation mechanisms that you have relationship has been suggested. In contrast, the fluorine-polyester hybrid powder coating by the clear layer of fluorine is formed on the surface from (Table 1) coating structure analysis, the effect of blocking the water as a radical source is expected . In order to examine this effect, it was reported on the basic properties and boiling water resistance test results and evaluation test plan of the fluorine-polyester hybrid powder coating system (Part 2) previously reported. In this paper, following the previous report 2), as evaluation of fluorine-polyester hybrid powder coating system, to report accelerated weathering and corrosion resistance, for outdoor exposure test results.

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Specification as satisfying the required performance, surface treatment of aluminum exterior member of the sash curtain wall or the like as the facade of a large building projects in recent years, the stability of the product management and quality of production in the factory over several decades, It was mainly from construction results, etc., subjected to chemical conversion coating treatment of hexavalent chromium acid salt-based, to apply the thermoplastic type fluorine resin coating system of the solvent system. However, reports on research on the bond durability of the sealing material is a material in the outer member construction of this sash curtain wall, etc., make up the member joint should ensure water-tightness, air tightness by the filled joint as a site, still little is at present. Therefore, in this paper, among the studies that were selected powder coating system typical, have been implemented with respect to adhesion to the sealant generic current report on the adhesion tensile test results.

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It was evaluated various coating film performance of the powder coating which attracted attention as coating in consideration for environment because of non volatile organic compounds (VOC)exhaused. That were showed same class good coating performance more than it in comparison with the solvent system fluoro resin coatings that high weatherability had been used for confirmation fluororesin powder coating by previous announcement so far and an abroad polyester resin powder coating with many results. In addition, in consideration of the case that I adopted in decoration curtain wall, it was evaluated the adhesive property with sealing materials. As a result, all of the fluororesin powder coating had good adhesion with two liquid form anamorphic silicone-based sealing materials, too. On the other hand, a problem was left in the adhesive property with two liquid form telechelic polyacrylate sealing materials.

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Experimenttal estimations and investigation into the actual conditions in foreign countries have been urged in order to apply powdered coated aluminum alloy to building exterior materials in Japan. In this paper, QUALICOAT and AAMA which have been utilized as evaluation methods for the coating in overseas have been examined and estimation methods for the powder coating that takes into consideration the actual circumstances Japan's construction industry are discussed. Cosequently, the evaluatin methods are proposed as a Japan Aluminum Products Association Standard. The object items are as follows. (1) Appearance (2) Colour (3) Suffece glossiness (4) Film thickness (5) Film hardness (6) Initial adhesion (7) Boiling water resistance (8) Impact resistance (9) Cutting and drilling resistance (10) Solvent resistnce (11) Alikali resistance (12) Weatherability for outdoor exposure. Cupping and bending resistance have not been taken up because post-processing is not common in Japan. Accelerated weathering tests exclude in the standard because the correlation with the outdoor exposure test results has been not clear. Comments are appendixed to above all items.

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Rock wool has sprayed, in order to give firesafety to an Steel columns and beams. Asbestos had been used as one of materials of sprayed rock wool.Since the wet sprayed rock wool is precise and hard, it was not able to apply the conventional containment construction method. We developed encapsulants for wet sprayed asbestos in 2004. The durability of that has been examined over about ten years after it. We did one air erosion examination every year during the first three years and for the last three years. It was checked that encapsulants for wet sprayed asbesutos which we developed, maintains the function to controls asbestos even if it will pass in ten years.

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In storage or basement rooms with no air conditioning, mold infestation can occur during construction or right after they are built. We developed an anti-mould agent, which can be directly coated on the building material surface as a mold control tool. We studied on the agent’s performance to counter mould and several factors, and performed demonstration. As a result, it was clarified as follows. The agent was higher performance than commercially agents and had effect on varied building materials. The durability was 12 months at least, the performance under wet condition held up in short time, and there were few changes by applying the agent about external appearance. Moreover, the verification test was conducted using parts where mould was infested, its effectiveness was confirmed when mould growth could not be seen.

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Although it usually constructed the Shimoji coating plastering materials, by the time construction of plastering materials became a process of the following glazing material including construction of the Shimoji coating plastering materials and drying time, three day in between was required for it at least. When a cold district and temperature were low, when humid, still longer care-of-health time was required. Furthermore, it dried after construction of glazing material, and by the time it started to use, three days were further needed. Therefore, by the repair work, since this time was not able to be taken, also when adoption of inorganic plasterer finish material was not completed, it was. Moreover, in the case of plywood or a concrete bed, the ground needed to construct the float inhibitor and water absorption inhibitor of the stain from a ground. This time, the wallpaper of the permeability which can replace the Shimoji coating material was constructed as a ground, and plastering materials were constructed.

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To control the increase in the temperature of steel materials during a fire, steel structures require fireproofing protections; recently, fireproof paints have been used for fireproofing. The coating of a steel frame at construction sites involves the application of a fireproof paint of the same color as the steel structure until the coated film is of a predetermined thickness. However, the difficultly in confirming the thickness visually results in insufficient or incomplete painting in some cases, which may lead to deterioration of the construction quality. In this study, we investigated materials that can easily color fireproof paints at construction sites, evaluated the adhesive property of these coatings by re-painting the fireproof paints, and conducted an accelerated deterioration test to confirm that the foaming characteristics of the fireproof paint films were suitable. To assess the construction quality of the colored fireproof paints, we evaluated the changes in the fireproof paint thickness caused by incomplete painting during the construction of the civil engineering steel structures, and confirmed the effectiveness of the coatings.

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In order to estimate the service life of coating materials for buildings, we carried out accelerated weathering test and outdoor exposure test of various coating materials in conjunction with literature surveys related to deterioration of coating materials. According to the results, it supposed that gloss retention of coating material exposed to outdoor was estimated by the gloss retention obtained from accelerated weathering test.We estimated the carbonation progress in concrete with deteriorated coating material based on the results of accelerated weathering test.

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The weather-resistant specification of combined coatings of anodic oxide and organic coatings on aluminium and aluminium alloys, Type A1 was newly established when JIS H 8602:2010, the main product standard used in Japan for the surface treatment of aluminium construction materials was having its performance standards revised from defining the specifications by coating thickness to defining the specifications by coating performance. At the meantime, the international standard, ISO 28340:2013 had also been established. On the other hand, powder coatings are being used widely in Europe and Southeast Asia regions. Hence, in order to introduce the combined coating products to the global market, the oversea outdoor-exposure data indicating the durability of the combined coatings would be necessary. This study shows the outline of outdoor-exposure test being implemented in 7 countries across Europe, the United States , Southeast Asia and China since 2012, along with the results of various performance tests carried out using powder coatings and combined coatings of anodic oxide and organic coatings.

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Recently, demand on the global environmental management and human health and safety is getting big worldwide social problem. In surface preparation process of aluminum alloy building materials, it is necessary to evaluate chemical conversion without chromium(VI). In this paper, evaluation for chromium(III) type chemical conversion are discussed on experimental results relating to performance test and method of quality control. As a result, chromium(III) type chemical conversion had good corrosion resistance and good coating adhesion, so it is possible to apply chromium(III) type chemical conversion to surface preparation process of aluminum alloy building materials.

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Urban Renaissance Agency works on the value up repair of a stock apartment building improving the value of the town effectively is made by total coordinate. By the previous report (Part1), We reported the process that water-related organic inorganic hybrid paint (polysiloxane system) coating specifications were chosen for exterior painting by the painting design along the concept.In this report,We investigated the outer wall coating of two and a half years and one year after construction. Because an almost good result was given about the appearance (glossiness, dirt) of the coating, I report findings.But there was the part that raindrop pollution was confirmed under the influence of coating waterproofing and ceiling materials and left a problem in the hereafter.

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At the present time, it appears that the transition from oil-based anticorrosive paint to water-based anticorrosive paint. A variety of materials are attached in steel fabrication plant. We evaluated the influence of the specimen glycerol and the shaped spatter inhibitor for water-based anticorrosive paints in the previous paper(1). In this paper, we evaluated the influence of the non-glycerol-based contact medium and the rust accelerator for water-based anticorrosive paints.

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Surface treatment with mortar is necessary to waterproof the ALC tiles when finishing the tiles at the site using organic adhesive. However, to perform such surface treatment with mortar in addition to finishing the tiles using organic adhesive at the site is troublesome, and brings about problems such as not being able to properly mix the mortar and having to perform extra work which is an obstruction to popularizing the method of finishing ALC panels with organic adhesive.Therefore based on the belief that surface treatment using acrylic resin instead of mortar is easier for construction and for quality control of surface treatment, we have conducted various studies using organic adhesive and acrylic resin. As a result, we have found that acrylic resin is as effective as mortar for surface treatment.

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The authors have developed external wall tiling system using organic elastic adhesives for surface preparation. This paper describes evaluation of waterproofing propeties. Results of material test about tensile property, adhesive strength, permeability and crack elongation performance showed that the performance of this system is as same as polymer-modified cement waterproofing membrane.

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On exterior wall tiling, other studies have concluded that adhesive mortar for ceramic having excellent tile crack elongation performance and delamination resistance. However the performance of adhesive mortar is not able to exhibit that of exterior wall tiling with organic adhesives. In this study, we made specimens of exterior wall tiling with adhesive mortar contained polymer admixtures for cement modifiers. Then we evaluated the effects of crack elongation performance and delamination resistance on deformation characteristics caused by tensile and bending stress.

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We reported that coating tile finish wall with transparent acrylic urethane waterproofing membrane (this method) can reduce risks of the adhesive deterioration of tiles due to fatigue in repetition of stretching and shrinking, which is caused by changes of temperature and humidity. In this report (part 2), We investigated changes of both adhesive strength and failure surface due to 3000 cycles repetition tests of heating-cooling, drying-humidifying, and heating-cooling and drying-humidifying repeat test. As a result, it was revealed that the adhesive deterioration is caused by not only the repetition of heating-cooling but also that of drying-humidifying. This indicates that use of this method against water invasion can prevent the segregation of tile finish wall due to its aging deterioration.

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As you go through the functional test using a wallpaper that O-zo of the present study followed one the impression that pattern perception of wallpaper that O-zo of the previous report visual distance gives to the living space impression evaluation, the 2. All three experiments conducted this experiment was carried out with specimens in actual scale all, it is assumed that real environment experimental environment accordingly. The purpose of this study without degrading the performance of the normal time performance much even in a situation environment that assumes a disaster, it will consider whether can be used as a building material no problem even in the event of a disaster.

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In this study, the work focuses on drywall and gathers the basic knowledge of designing the fire resistance method which was considerate about building structural and fire force. In case of fire, the drywall crack, then the hot air flow into the hollow layer. This movement makes the temperature of dry wall increase in the early, Therefore, this study takes calcium board and gypsum board to work on a small-scale heating experiment of thermal contraction. The part 5 shows the experiment results.

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The last study (Part 5) shows the result of thermal contraction of calcium board and gypsum board for the small-scale heating experiment. This study considerate about the heating characteristics of joint section and board section, and compare the impact factors by the result of experiment. To use numerical simulation (FDS) for analysis the data of hollow layer, the temperature prediction and material comparison can be undertaken.

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Currently, gypsum board has been used as an interior finish for many buildings, there are various types of anchor for gypsum board , such as interior instrument into the gypsum board. However, examples of comparing and considering the pulling strength by their shape is small. In this study, to classify various types of anchors for gypsum board shape and construction methods , we examined the effect of the pull-out strength depending on the type of anchor. In this paper, we classify all of the gypsum board to 6 type, were selected to test the 12 types from among them. First performed monotonic loading pull-out test, with reference to the data obtained in the test, was performed repeatedly loading pull-out test. Showed that compared the data of the two types of tests, fixation of the anchor to pull-out strength of the anchor for gypsum board, is that the shape is greatly affected found.

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Reserch on avoidance of hazardous chemical substances in baking enamel coating on aluminum alloy has been continued and weatherability has been estimated by outdoor expsure tests in Okinawa and south of latitude 38 degrees N in Southeast islands. In this paper, the outdoor expusure test results on test pieces that applied chromium VI, chromium III, chromium phospahte, chromium-free chemical conversion and anodic oxidation as the surface preparation and coated with solvent type thermosetting fluorocarbon enamel are reported. Main results are as follows. (1) The coating on anodic oxidized aluminum alloy has most excellent wetherability and chromium VI chemical converted has excellent corrosion prevention effect as wel as the anodic oxidized. (2) It is judged that the coating on chromium III chemical converted has not quite different from chromium VI chemical converted in corrosion inhibition effect. However, the difference is claer in combination of kinds of chemical reagent and paint. (3) The coating on some chromium-free chemical conversion has enough corrosion protection effect. However, many kinds of the chemicals has remakable deterioration and it is difficult to keep stable quality. Therefore, it is necessary to apply carefully the chromium-free chemicals.

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Reserach on avoidance of hazardous chemical substances in baking enamel coating on aluminum alloy has been continued. In this paper, analysis results of coating film surface, and backface and cross section of peeled off film that has been outdoor exposed for 84 months at 2 sites in Okinawa mainland are reported. Main results are as follows. (1) Sodium and Chloride on the outdoor exposed specimen surface are largely detected from the specimen that has exposed at Ikeijima where the coating has been deteriorated since early in their exposure test. (2) Existance of aluminum chloride and oxide are estimated in the blistered part based on elements detected from the substrate surface and the peeled off coating backface that has been blistered. (3) It is presumed that chrolide exists on the coating blistering part on the aluminum substrate and aluminum oxide has been produced based on the cross section observation. (4) It is judged that the adherent chloride to the specimen causes to accelerate the deterioration including the coating gloss down, chalking and blistering etc. (5) Elements analysis on the outdoor exposed test pieces is useful for coating durability estimation.

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