Influence of Mixed Admixtures on Properties of Aeolian-sand Mortar

Abstract

Using Aeolian sand as fine aggregate, adopt fixed lime sand ratio(1:2, Under the same consistency of mortar, the effect of single and compound doping of VAE and Water retaining agent(BS-W) on the working and physical properties of mortar was studied. Through the coMparison of its properties with blank mortar, to get the best content of admixture and the best proportion of compound admixture, to provide ideas for the development and research of high proportion or total replacement of aeolian sand mortar. The results show that: VAE and water retaining agent can obviously improve the workability, construction and water retaining performance of the slurry, but the physical and mechanical properties of mortar are reduced. When VAE content is 0.7%, BS-W content is 0.15%, the overall performance of mortar mixed with them is better, the flexural strength and compressive strength of mortar reached 4.78Mpa and 15.3Mpa respectively in 28d.