改性轻骨料混凝土基本力学性能试验研究

发布时间：2018-04-04 21:47

  本文选题：改性轻骨料混凝土　切入点：聚合乳液　出处：《混凝土》2017年11期

【摘要】：轻骨料混凝土以其轻质、高性能,利于环境保护的特点在工程中有着广泛的应用前景,符合现代可持续发展的要求。为改善轻骨料混凝土的脆性问题,提高其变形性能,采用10%~30%浓度的聚合物乳液浸泡轻骨料的方式,配制出不同聚合乳液掺量(10%、15%、20%、25%、30%)的改性轻骨料混凝土,并对其进行了立方体强度抗压试验、弹性模量试验、劈裂抗拉强度试验、轴心抗压强度试验。相对于轻骨料混凝土,聚合乳液掺量为10%~30%的改性轻骨料混凝土的立方体抗压强度下降了3.75%~16.38%,弹性模量下降了9.34%~15.21%,轴心抗压强度下降了5.16%~27.68%,但聚合乳液掺量为10%~30%的改性轻骨料混凝土的劈裂抗拉强度提高了1.31%~24.89%;根据试验破坏特征可得,改性轻骨料混凝土的变形能力、脆性问题较轻骨料混凝土有所改善。
[Abstract]:Lightweight aggregate concrete has a wide application prospect in engineering because of its light weight, high performance and favorable environmental protection, and meets the requirements of modern sustainable development.In order to improve the brittleness of lightweight aggregate concrete and improve its deformability, the modified lightweight aggregate concrete was prepared by soaking light aggregate with 10% or 30% polymer emulsion.The cube strength compression test, elastic modulus test, splitting tensile strength test and axial compressive strength test were carried out.Compared to lightweight aggregate concrete,鑱氬悎涔虫恫鎺洪噺涓，

本文编号：1711813