Departmental Bulletin Paper フライアッシュ外割混合コンクリートの耐硫酸性および耐硫酸塩性に関する研究
Resistance to Sulfuric Acid and Sulfate Attack of Concrete Containing Large Quantity of Fly Ash

伊藤, 是清  ,  小山, 智幸  ,  原田, 志津男  ,  片村, 祥吾  ,  平山, 茉莉子

28pp.95 - 100 , 2015-07-15 , 九州大学大学院人間環境学研究院都市・建築学部門
In this paper, resistance to chemical deterioration of concrete containing large quantity of fly ash with constant Portland cement content was discussed by investigating the change of weight and length of specimens immersed in a 5% solution of sulfuric acid and sulfate. Specimens with no fly ash content (with Portland cement only), with higher cement content, and with lower water cement ratio were dissolved severely by the sulfuric acid of a pH value between 0.2 and 0.5. On the other hand, it was confirmed that with an increase in the fly ash content, the resistance of specimens to sulfuric acid and sulfate attack improved

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