ポーラスコンクリートの圧縮強度特性の確率変動に関する実験的研究

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タイトル別名
  • EXPERIMENTAL STUDY ON DISTRIBUTION OF COMPRESSIVE STRENGTH OF POROUS CONCRETE
  • ポーラスコンクリート ノ アッシュク キョウド トクセイ ノ カクリツ ヘンドウ ニ カンスル ジッケンテキ ケンキュウ

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It is well known through extensively performed experimental investigations that porous concrete can be utilized as an environmentally friendly material. However, distribution characteristics of strength and void ratio of porous concrete have not enoughly investigated, while distribution of the strength of plain concrete is clarified practically to a certain extent. Main purpose of the present study is to make clear the distribution of compressive strength and void ratio of porous concrete. Void ratio tests and compression tests with a large number of porous concrete samples have been conducted. The experimental variables have been as follows: water-cement ratio, flow value of binder paste, void ratio, and vibration time of compaction. As a result, followings have been found, i) Variation compressive strength-void ratio relation of porous concrete may be regarded as a normal distribution, ii) Coefficient of variation may be estimated 10% for porous concrete.

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