EFFET OF TEMPERATURE AND HUMIDITY DURING CURING ON STRENGTH OF CONCRETE CONTAINING FLY ASH

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  • Kawahara Tomozumi
    社團法人土木學會 電力中央研究所技術研究所, 第2部コンクリート研究室

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  • 養生中の温度および湿度が, フライアッシュを用いたコンクリートの強度におよぼす影響
  • ヨウジョウ チュウ ノ オンド オヨビ シツド ガ , フライアッシュ オ モチイタ コンクリート ノ キョウド ニ オヨボス エイキョウ

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Abstract

This paper describes the results of studies on the effects of temperature and humidity during curing on the compressive strength of concrete containing fly ash. Results of the strength tests of the air entrained and non air entrained concretes containing various brands of fly ash cured in water for various periods at certain constant temperatures i. e. 5°C, 21°C and constant or varying humidity are described. Consequently, (1) in case of water curing, it is recognized that the effects of containing fly ash on the strength of concrete cured at 5°C is same as that on the strength when it is cured at 21°C, or, the increase of strength of concrete cured at 5°C is larger than another preferably. And, (2) in case of dry curing, it is recognized that the increase of strength of concrete is smaller than that when it is cured under another condition.

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