- 李 煒1,2,朱文婷1,2,施宇磊1,2,洪錦祥3,楊鼎宜1,2
2020年第12期
摘要
引用本文
摘 ? 要:通過力學性能、化學結合水、水化程度、Ca(OH)2含量、漿體密實度和孔結構等試驗,研究了陽離子乳化瀝青對水泥水化的影響。結果表明:隨著乳化瀝青與水泥的質量比(A/C)從0增加到0.45,水泥-乳化瀝青(CA)砂漿的力學性能逐漸下降;化學結合水、水化程度和Ca(OH)2含量也隨之降低;超聲波速逐漸下降,漿體的孔徑和累積孔體積逐漸增加,CA砂漿的水化產物減少??傊?,陽離子乳化瀝青抑制了水泥水化和微結構的形成。
Abstract: The influence of cationic asphalt emulsion on cement hydration was investigated by testing the mechanical properties, chemically bound water, hydration degree, content of calcium hydroxide, density of paste and the pore structure. The results show that with the increase of mass ratio of asphalt to cement(A/C) from 0 to 0.45, the compressive and flexural strength declines gradually. The content of chemically bound water, cement hydration degree and the formation of Ca(OH)2 also decreases. The velocity of ultrasonic wave of cement-asphalt mortar reduces, while the pore size and the cumulative pore volume of cement-asphalt paste increases gradually. The formation of cement hydration products of CA mortar reduces. All in all, the hydration of cement and the formation of microstructure are suppressed by cationic asphalt emulsion.?
李煒,朱文婷,施宇磊,等.陽離子乳化瀝青對水泥水化及CA砂漿性能的影響[J].混凝土與水泥制品,2020(12):1-5.
LI W,ZHU W T,SHI Y L.The Influence of Cationic Asphalt Emulsion on Cement Hydration and Properties of CA Mortar[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(12):1-5.