| Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2015: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2014: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2013: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
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| Outline of Final Research Achievements |
In this study, mechanical properties such as compressive strength and chemical degradation of cementitious materials exposed to 60-80 °C was examined. As a result, history of 80 °C during the curing can retard the strength development comparing to 20 °C curing case based on the pore structure change. It was also found that the cement with limestone powder is more probable to cause a map cracking on the surface of cementitious materials when they are exposed to high temperature at early ages. It is suggested that the replacement of cement with fly ash can be effective to inhibit the chemical degradation and to avoid the large strength reduction depending on the aggregate type.
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