現場打ち気泡コンクリートと軟練り軽量コンクリートの側圧に関する実験

概要

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This time l used 3 meters H-typed steel column for this test, and measured the lateral pressure on the concrete, when l poured concrete uing such various aggregate as foamed concrete, expanded shale and volcanic grauel and compaired with them each others, and had the following results. i) When the foamed concrete poured, with during the work, the hight of the head is not clear, and it is almost same the pouring of the liquid, and it decided by the high and weight of the concrete. ii) In the case of the lightweight concrete, it should be decided by the slumps of the concrete, as the example, the slump is about 21cm, it accoured on the 1 meter high of the head, and it is about 24cm, it acco ured on the head of 1.5m to 2.0m. In general the maximum pressure of concrete on forms decreased in accordance with the weight of the using concrete. iii) When the thickness of the concrete reached to 5cm, to 29cm the pressure of Concrete on forms is almost same in foamed concrete, but the head of lightweight by using aggregate hed rise up by the thickness of the concrete.
1965-11-30