Concrete Journal
Online ISSN : 2186-2753
Print ISSN : 0387-1061
ISSN-L : 0387-1061
Search
Advanced search
OR
Browse
Search
Volume 25, Issue 10
Displaying 1-5 of 5 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • Review of the Recent Trends of Light Traffic Concrete Pavements
    Katsuro Kokubu
    1987 Volume 25 Issue 10 Pages 5-14
    Published: 1987
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.25.10_5
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Light traffic concrete pavements constructed on a small scale have been widely used at agricultural districts. However, few guide books for these kinds of paving are available at the moment except some specific jobs. This paper intends to describe the recent trends of the light traffic concrete pavements and review their design and construction method.
    View full abstract
    Download PDF (3136K)
  • Application of Steel Fiber Reinforced Concrete to Warehouse Floor Slab
    T. Nishigaki, T. Usui, H. Terashita, S. Ishidoh, K. Kamiya
    1987 Volume 25 Issue 10 Pages 15-24
    Published: 1987
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.25.10_15
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Steel Fiber Reinforced Concrete (SFRC) was applied to slabs of every floor of an 8 storied ware house. Total volume and area of SFRC placed were 1450m3 and 17320m2, respectively. The slabs of this warehouse were designed as reinforced concrete structural members, and SFRC is expected its arrest effect on cracks due to drying shrinkage and dynamic repeated loads caused by running folklifts. Steel fibers with hooke at both ends and twice as long as fibers usually used in building structures were employed for SFRC. Pumpability tests were carried out to confirm pumpability and workability of SFRC, when SFRC was placed on precast concrete panels, because not any study using this type of fibers had been made. By using the test results, the mixing proportion and the procedure of placing were decided, and high quality SFRC slabs were satisfactorily accomplished.
    View full abstract
    Download PDF (1696K)
  • Construction of Regulating Reservoir for Waterworks Considered Thermal Crack Control
    S. Adachi, J. Aiso, K. Nakura
    1987 Volume 25 Issue 10 Pages 25-34
    Published: 1987
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.25.10_25
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    This regulating reservoir was constructed in Sendai city, and the capacity is 44650m3. The scale of this reservoir is approximately 116.6m wide, 105.6m long and 5.8m high. As this structure was wall type mass concrete, the occurrences of thermal cracks induced the heat of hydration was predicted. This crack occurrences have bad influence on watertightness and durability, we planned thermal crack control measures and practiced them. After that, we amended control measures that considered differences of construction condition, i.e.. As a consequence, we could control thermal crack occurrences in the range of good qualities. This report is concerned with the plans of thermal crack control and the results of construction.
    View full abstract
    Download PDF (1405K)
  • [title in Japanese]
    [in Japanese]
    1987 Volume 25 Issue 10 Pages 75-81
    Published: 1987
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.25.10_75
    JOURNAL FREE ACCESS
    Download PDF (1791K)
  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    1987 Volume 25 Issue 10 Pages 95-112
    Published: 1987
    Released on J-STAGE: April 26, 2013
    DOIhttps://doi.org/10.3151/coj1975.25.10_95
    JOURNAL FREE ACCESS
    Download PDF (4313K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top