Experimental study on the working and mechanical properties of high performance cementitious structural grouts

Zhang, Lu; Liu, Mengmeng

doi:10.2478/eces-2021-0032

Abstract

By using the experimental study method, the working properties and mechanical properties of grouting materials were determined by changing the cement-sand ratio, water-cement ratio, and cement admixtures. The main factors affecting the properties of grouting materials and the mutual influence rules of various factors are analysed and determined, and the best value range is obtained. Finally, the compressive strength of 28-day ordinary Portland cement structure grouting is optimised to 50-80 MPa. Based on the grouting ratio of ordinary Portland cement, an experimental study on the early strength structure paste of sulphate aluminate cement was carried out. The paste with one day strength as high as 70 MPa and good compatibility was prepared, and the early strength change law of the optimum ratio was deduced.

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Experimental study on the working and mechanical properties of high performance cementitious structural grouts

Abstract

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