This paper reported the results of measurement of indoor asbestos fiber concentration for various types of indoor environment. The asbestos fiber concentration was determined by use of phase contrast microscope method and the dispersion staining method. The concentrations through the two methods were compared in the study. It was found that the concentration which determined by phase contrast microscopy method was ten times higher than that of determined by dispersion staining method.

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It has been pointed out that 2-Ethyl hexanol (2EH) emitted from PVC Floor Covering could pollute indoor air. In this study, various 2EH catcher reagent for PVC Floor Covering were investigated. The emission rate of 2EH of PVC Floor Covering containing with reagent was measured by small chamber method. More than 90% reduction of 2EH emission was observed.

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Nowadays, sick-house syndrome is becoming a social issue. Therefore, many Low VOC emission interior materials have been put into the market. However, in the case of floor covering materials like PVC floorcoverings, it is pointed out of possibility that the newly created VOC compounds emit from the materials, which is generated by chemical reaction of material by ground influence. In this study, we have evaluated the influence of types of grounds and adhesives by focusing on the 2EHA emission, which is generated by the hydrolysis of some ester compounds. As a result, we have found that one of the non water resistance adhesive emits 2EHA under the condition of the alkaline ground. On the other hand, when installing PVC floorcovering which contains DEHP with urethane based water resistance adhesive prevents hydrolytic cleavage of DEHP which is contained in the PVC floorcoverings by alkaline ground.

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As for formaldehyde that emanates from construction materials, it is widely known that there is a temperature dependency. In this research, a change with the lapse of time of the amount of the radiation lasting for one month of 15°C, 28°C, and 35°C, constant was measured by the small chamber examination by using the formaldehyde emanation construction materials, and the difference of the attenuation tendency by the difference was considered at the temperature. Moreover, it was considered what difference you were in the attenuation tendency to the amount of the radiation when the temperature history was changed as 15°C from 28°C and 35°C from 28°C and a change with the lapse of time of the amount of the radiation that lasted one month of the situation was measured by the small chamber examination, and the temperature history changed.

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This study aims to minimize health effects occurred by chemical indoor pollution on occupants. In this paper, the chemical emission rates from interior materials are examined with small chambers. Structural repairing materials and paints that were used in the job site are investigated. The testing equipment and conditions are based on JIS A 1901. The chemical concentration in the teacher room is predicted with the emission rate obtained by the small chamber testing. The results shows that a large amount of ventilation can decrease the indoor chemical concentration significantly one month after the working.

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[in Japanese]

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In the Japan Reinforced Plastics Society, for the purpose of development of Phenolic Composite Exterior Wall Methods, the fire resistance of Phenolic Composite Panel was examined by two cases. Case 1 : the influence of the combination of panel upon the fire resistance. Case 2 : the influence of the appearance of panel joint upon the fire resistance.

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Intumescent coatings for steel protection applied to fire resistanc of building structure are becoming poupular in Japan. In this paper, the fire resitance tests were conducted according to ISO 834 test method for heavy steel column which have hollow cross section of one meter width and 40mm thickness. the results show the enough fire resistance parformances and suffisient stickability.

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[in Japanese]

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Wood finishing method decay resistance difference exposure experiment. As the result, it is shown that the evaluation of the decay resistance is difficult in the short term day.

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To use the wood used for a traditional building effectively, abstergent of dirt was investigated. As for the washing method, painting, the blast, and the water jet, etc. are enumerated. In this report, the examination was executed by using painting and the blast to investigate the washing method of maintaining the ruggedness on the surface. The examination was evaluated by a change and a color difference, etc. the ruggedness on the surface.As a result, it was able to be confirmed that the blast within a certain range of the condition was effective to maintain the ruggedness on the surface, and to wash it.

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Recently many people live with their pets inside house. There are some problems of pets life. At First, the pets are injured by slipping on the interior wood floor. At the second, people can not use water on the interior wood floor, so they can not clean up the excrements of pets easily. It is not sanitary and not comfortable life with pets. We developed silicone coating for interior wood floor. As the result of research after application, it was obvious that the silicone coating had excellent slipperiness resistance and easy cleanability.

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There are many previous researches on dirt stuck to building materials. However, it is not clear the influences of building materials are deteriorated on the dirt.In this study, it was conducted the experimental studies on the influences of alternating immersion and which washable-property concerning dirt streaks from flowing on various external materials affected by freezing & thawing test on the dirt stuck to various external materials. And, it was also conducted sensory tests to evaluate the dirt by sense of human. The results show that the brightness of the building materials are not changed after deterioration tests, however, the deteriorated materials become difficult to remove the dirt.

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[in Japanese]

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We study on durability of rust resisting paint .We test that paints by accelerated weathering test, salt spray test, and water resisting test. In result, we have the problem of water resisting finishing synthetic resin paint. The area of damage from salt water, we need to paint more thick of paint, because tin paint film cause damage from salt water.

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The presentation concerns water-borne fluoropolymer coatings based on PVDF. These low VOC latexes provide excellent weathering and flexibility in formulation for coatings as elastomeric roofing membranes, PVC coatings, architectural textile coatings, and cementation coatings. In addition to low VOC benefits, this coating technology can be formulated to provide ambient cure coatings. Data will be presented that demonstrates the inter-penetrating-network (IPN) nature of this latex and its improved weathering performance in addition to dirt and water repellency.

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We examined the products,which are saved the process and are excellent to anti-cottosion,for the top coatings with good weather-ability such like the urethane resin or the fluorine resin on the zinc rich paint.This report is summarized the test result of anti-corrosion,weather-abilith,and adhesion.Moreover,this report is demonstrated this specification would be not inferior to "The normal temperature dryness fluorine resin enamel coatings"by the public construction standard specification.

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There is a result of the previous research for about 20 years for presumption of the service life of the exterior paint finishing materials. However, because paints used had changed, the review of the result was needed. Then, the painting specification being used in general as an exterior now was first arranged. Next, the questionnaire survey of paints and the finish painting material to the factory was done, and the tendency and the range of the standard life that the factory thought about were understood. In the prat.1, questionnaire investigation results of coatings to concrete and mortar was shown among the questionnaire surveys.

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There is a result of the previous research for about 20 years for presumption of the service life of the exterior paint finishing materials. However, because paints used had changed, the review of the result was needed. Then, the painting specification being used in general as an exterior now was first arranged. Next, the questionnaire survey of paints and the finish painting material to the factory was done, and the tendency and the range of the standard life that the factory thought about were understood. In the prat.2, questionnaire investigation results of coatings to steel,galvanized steel and aluminum were shown among the questionnaire surveys.

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In recent years, the cases of various trouble caused by static-electricity in precise device factories have been reported, so that floor materials with anti-static performance have been required to use in floors where trouble may be caused by static-electricity. Therefore, the authors have developed coating floor material with anti-static performance having high durability. This paper describes the results of the property tests and the test execution regarding with the developed coating floor material. As a result of those, it was clarified that the developed material had high productivity and showed fine finish condition, and had excellent anti-static performance.

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This paper describes that; the developed coating floor material with anti-static performance was tested for the accelerated degrading test. As a result, the developed coating floor material with anti-static performance showed little damage after the accelerated degrading test and excellent anti-static performance compared with other coating floor materials. Furthermore, by means of coating wax to the surface of the floor material, cleaning condition which the cart with casters ran on the floor was improved, so that the degrading of anti-static performance was decreased.

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Among external finishing materials for construction, the outdoor exposure test and accelerated weathering test on the ceramic tiles and coatings were executed, and each material stain resistant and durability were evaluated. Consequently, when the photocatalyst paints are applied to the outside wall, it is preferable to paint the printing to inorganic substances such as the ceramic tile, the stone, and the glass by the factory, and it was clarified to a normal temperature dry paints for the site construction that there was a problem in durability. The tile is a material that doesn't adhere easily dirt, no it is polluted design part or there is no problem even if it is a normal tile if it is a place where rain is hit on the outside and it thinks.

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[in Japanese]

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The wallpaper that gave various functions in recent years is developed. The photocatalyst has self-polluted effect by using the light such as the sun light. However, the effect was indefinite in spaciousness. This report evaluated pollution-proof of It the evaluated by using the wallpaper using the photocatalyst, the air catalyst, and the film. pollution. Moreover, it was whether only a fluorescent lamp it and effective of pollution-proof of pollution whether it to was effective It confirmed by using a windowless cigarette room. were confirmed. In addition, the removal of the wallpaper that polluted it was confirmed.As a result, it has been understood that there is pollution-proof pollution compared with a usual wallpaper also under a severe environment according to the kind of the function. Moreover, it was able to be confirmed that the film was the most effective about the removal.

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[in Japanese]

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We have been expanding the thermal insulation coatings system to reduce heat load occurring in a roof of buildings in Okinawa with high solar radiation. In order to verify the effect of the thermal insulation, we performed two methods. First, the buildings which coated by the thermal insulation coatings system were researched and the durability and the effect of the thermal insulation coating were evaluated. Second, the outdoor exposure tests of various coating materials were carried out and the relationship between the thermal insulation and coating materials was investigated. As a result, it was demonstrated that the reduction effect of heat load from the thermal insulation coatings system was maintained, compared with uncoated concrete surfaces. And also, it was confirmed that the effect of the thermal insulation decreased with increasing of year because of the stain on the coating surface. From these results, to maintain a solar radiation reflectance, it was effective to add preventive stain performance to the thermal insulation coatings.

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In recent years, we are anxious about disclosure of electromagnetic wave information, such as interference of the incorrect operation of an electric device, or radio communications, and a computer, with the spread of various kinds of radio–communications apparatus.As these preventive measures, construction of an electromagnetic wave shield room serves as an effective measure.As for the method, it is common to cover the floor of the room, a wall, and a ceiling portion with conductive high material, such as a metal plate, and metal foil material, a conductive sheet.However, insides of construction, such as a door, a ventilation opening, and a window, also have the portion which carried out complicated form, and construction with a paint has been called for.Since the water electromagnetic wave shield paint corresponding to spray paint and roller paint was developed, the paint specification including an electromagnetic wave shield performance is introduced.

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The behaviors of rainwater that flows down along the surface of roofing tiles at the eaves of pitched roofs were examined with seventeen types of tiles. Eleven of the tiles were traditional Japanese eave tiles of various design. Two were Spanish tiles, and the rest were interlocking flat tiles. Distribution of water that drips from the front edge of the tiles were measured on various height and horizontal position with four levels of flow rate, which were determined from ordinary rainfall rate and the flow lengths. Considerable difference was found in the behavior of run off water due to the shapes and materials of the tiles.

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Baked enamel coating system onto aluminum alloy is much used for building exterior and interior materials in Japan. However, it has been not yet discussed on the environmental management. Therefore, Japan Society for Finishing Technology has established a committee on the environmental management for baked enamel coating system onto aluminum alloy building materials. In this paper, it is discussed that the reserch theme is one of important bulding technological problems and an outline of pretest for surface preparation treatments before coating which has been studied at present.

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In part1 of this report, the research background and outline of pretest for surface treatments are described. In this paper, it is included that interim report on pretest for surface treatments. Evaluation method is five tests which are adhesion test (cross-cut test), weight-dropping test, scratch hardness (pencil method), resistance of boiling water immersion, resistance of heat and cold round. Intial adhesion in almost kinds of surface treatments is enough. It is confirmed that adhesion after boiling water immersion and heat and cold round differs with kind of chemical conversion, kind of substrate and coating specification. Accelerated deterioration tests and exposure weathering test have been continued. Based on these results, environmental management for baked enamael coating system would be proposed in the future.

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[in Japanese]

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Japan which has been inherited by plasterer technology is high as Japanese traditional building to be able to boast of to the world that an earth wall uses natural material such as soil, sand, lime from ancient times, and can express various expression, and it is evaluated. About a color in particular, I give innumerable impressions by conditions such as a kind of soil, mixture materials, a secular variation. However, unevenness of materials and an ability difference of a plasterer craftsman, a district difference influence an earth wall greatly, and it is difficult to operate the color freely. I make an earth wall panel in a different condition and evaluate the color and, in this study, inspect a kind of soil, combination. By this, I make color expression of the earth wall which was a sense-like clear so far and am aimed at becoming a help at the time of earth wall choice.

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At present the washing method of construction materials have not established. A purpose of this study is to develop a accelerated washing test method that can apply to microbes and both dirts.In this study the pollution is limited to the fungi and the dirt.First we polluted examination materials and washed them by washing machine,secondly washed them by human hands. Next we considered relations between washability by washing machine to by human hands.As a result,the test results with the machine which we suggested corresponded with results by the human hands, and dispersion was little.

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The outdoor exposure test for ten years was usually carried out about the examination object produced by the after [ a ceramic tile ] tension method of construction to concrete. Examination levels are the curing period after concrete placing, the surface treatment of concrete, the kind of mortar setting beds, and tiling method. Consequently, the concrete surface treatment by the mortar concrete rivet-back method and the high-pressure water washing method has verified that ten years or more of exfoliation prevention was maintainable. Moreover, the thing which, as for construction of direct tension, generating of exfoliation is accepted in a plywood side, and a problem is in durability when on-site preparation mortar is used as tile ground mortar has usually been checked.

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To avoid the fall-off of tile from tile installation, fatigue test of shear of tile technique was evaluated. This tile technique was organized by flexible urethane adhesive which was used as a buffer material in response to differential movement. Additionally, we evaluated the advantage of porous plate that adopt mechanical joint to the ground adhesion surface by testing its fatigue characteristics.

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A ceramic tile finishing system by using an elastic adhesive has been established to detached houses. In the reprot,it is described that test results of the ceramic tile finishing system for repair purpose using an elastic adhesive after removing finishing coatings by remover. However there is a concern on finishing coatings. The concern is "scattering harmful substances" when they are removed. Because finishing coatings contain harmful substances such as lead / chrome / asbestos. Groundwork materials, such as polymer cement mortar also contain asbestos . I report results of adhesive properties of tiles glued by an elastic adhesive onto groundworks, which finishing coatings were removed by remover, hand or high pressure washing.

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As the replacement of mortars for exterior tile bonding, the adhesive of modified silicone mixed epoxy resin with flexiblity as an organic adhesion material is getting focused. In 1990, we applied the adhesive of modified silicone mixed epoxy resin to the exterior tile walls of three buildings in trial. We had reported on the results of this trial continuously four times in this meeting (in the year of 1994, 1996, 1998 and 2001). We would like to report on the result of adhesion properties of these actual examples after 15 years passed. The adhesive maintained good adhesion even aftre 15 years regardless of ground materials (RC, ALC and siding material).

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Japanese architectural concrete is evaluated high in the foreign countries, because of the texture of the concrete using painting form is smooth liking a mirror and lucid, and the image is stern. However in the present circumstances, there were extremely few reports on quantitative analysis of the influence of the surface properties on the image of architectural concrete. Then, with the psychoiogy tests to the Student of architectonics department, the correlation between the color & properties and the image was experimentally examined using architectural concrete test pieces and architectural concrete building's photos. According to the result, There are cold, hard, and heavy images in architectural concrete, and the surface's gloss and brightness influenced the image.the correlation between the color & properties of architectural concrete and the image were quantified.

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Color coordinate of architectural concrete is a very important factor of structure’s beauty. However in the present circumstances, there were extremely few reports on quantitative analysis of the influence of the color of cement and fine aggregate on the color of concrete. Then, the influence on the color of architectural concrete was experimentally examined using cement and fine aggregate with different color. According to the result, the correlation between the color of architectural concrete, and the color of cement, fine aggregate, the mixture of cement and fine aggregate, mortar was clarified. And through analyzing the influence of the color of cement and fine aggregate, the color of the mixture of cement and fine aggregate was quantified.

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[in Japanese]

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This paper reports results of a series of corrosion tests which were carried out for evaluating new water-based anti-corrosive coatings. The evalusted coating systems used for steel components which support ALC panels. The test result shows that the new water-based anti-corrosive coating systems are as good as the ordinal oil-based anti-corrosive paints.

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ITUKUSHIMA Shinto Shirine could include neighboring domains in a wooden building built on the sea in 1996, and it was registered as a world heritage. The greatest reason to construct a wooden building on the sea found safety of marine transportation by can confine Murakami water forces, movement of Kawano water forces because it was it with support of ITUKUSHIMA Shinto Shirine which controlled marine security, and Kiyomori Taira whom I gave vast profit to by Soong trade on a day in the Heian era protected a Shinto shrine. Therefore it was necessary to have the scale that before that ITUKUSHIMA Shinto Shirine was solemn, and won did not have. The foundation of a Shinto shrine was performed by local Saeki clan. There are not documents about there having been Otorii in foundation those days. A this matter study did research about materials and a method of construction about the contents which maintenance made a wooden building in a condition for a long term very much in the sea and gathered up detail of the building which ancient people devised.

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The Japanese citadel has been destroyed in the Meiji era. Construction of a castle to fall under left national treasure and important cultural property is over only in 14 cases now. A reconstruction business is the whole country, and, in the castle, it is big, exercising by becoming the core of the town as beauty and a symbol of a Japanese building, and a plan and construction such as Kumamoto-jo Castle, bush clover castle, Kanazawa-jo Castle, Nagoya-jo Castle begin. Agency for Cultural Affairs accepted cultural value only in a wooden castle, and a traditional citadel came to attract attention of a castle of concrete structure by having decided not to expend a subsidy. The durability that it is reasonable limits this investigation to the low plaster in a citadel and reports the result that I can include an overseas world heritage and investigated.

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It is "the noise" which what influences a resident in the sound which occurs on the occasion of an outer wall repair works most entails for the punching work for the anchor fixation and the epoxy resin injection.It has the influence to spread, too, and a resident feels a member such as a wall, floor with the unpleasantness in comparison with the general construction sound, the loud sound to the residence room which is next to a punching period to last several months, and the position of punching when it becomes a full-scale repair, too, though the sound which occurs at the time of punching to the finishing material such as mortars by this drill and the body body concrete is a short occurrence comparatively.It was examined about "the drill noise" which occurred based on the noise investigation carried out in the questionnaire enforced so far, the listening comprehension investigation and the apartment complex along with the punching work here.

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This report shows the result of the measurement of vibration level applying lower noise and vibration type drill on the existing building. As the result, the range of vibration level applying lower noise and vibration type drill are 43-53 dB in up-down direction and 35-48 dB in horizontal direction at near the punching point. The effects of reduction of vibration are 10-20 dB in up-down direction and 5-15 dB in horizontal direction compared with ordinary vibration drill. In case of lower noise and vibration type drill, it is possible that attenuation by distance is larger, and the area influenced by vibration is smaller than the case of ordinary vibration drill.

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The main purposes of the present study are to investigate and evaluate the present state of the structures in the Ayutthaya and Sukhothai ruins, the world cultural heritages in Thailand. Proposing a most suitable repair method is also one of the main purposes. According to a diagnosis works by the authors, most of the brick buildings i.e. pagodas covered with plaster and stucco are deteriorated severely including the covering materials. That is, most of the pagodas are inclined and the plaster and bricks have become fragile (sometimes dissolved) due to various causes e.g. un-even settlement, salt weathering, growth of plants etc. As a future study, a cooperative repair works, including the development of a strengthening chemical agent and checking system of the strengthening effect, are desired between Thai and Japanese research groups

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Many houses built in Tookamachi-shi,Niigata were damaged by the natural disaster:Chuetsu big earthquake and heavy snowfall.However,the house built more than 100years ago has little damage than modern houses.At this time I selected old houses in Matsudai,Matsunoyama,Tookamachi and Nakasato not to deflection by the ground.The old houses I investigated is all unoccupied house since this five years.The reaserch put an important point in relation between structure and the surface,and the charactaristic of building in this area.

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Large-size screen is in demand. But it often mar the beauty of the interior decorations and be a drag. And we thought fusuma can be solutino to those problems by what fusuma have fancuity. So we reseached latest fusuma and difference between screen and seets of fusuma.

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Our previous study shows the extent of vapor permeability of various coating materials for textured finishes of buildings based on a literature survey to make a reference for selection of coating materials. In this paper, it is conducted a literature survey on deterioration of RC components preventing effects of various coating materials, and investigations on correlation between the effects and vapor permeability. The results show that it is observed a high correlation between chloride penetration and vapor permeability of the coating material, and a correlation between water absorption and the vapor permeability.

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Still now, many empty bottles except colorlessness and brown are not reused. On the other hand, the wood of bamboo has done damage to afforestation of Japanese cedar and cypress in the south region of Kyushu island. In this research, bamboo charcoal composite ceramics made from discarded glass particles were developed. This report shows the experiment examination result about the humidity adjustment function and formaldehyde adsorbent ability of bamboo charcoal composite ceramics.

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