废橡胶对再生混凝土力学性能影响的试验研究  

The Influence of Waste Rubber on the Basic Mechanical Properties of Recycled Concrete

作　　者：张卫东[1] 相军[1] 王成武[1] 

机构地区：[1]淮阴工学院建筑工程学院,江苏淮安223001

出　　处：《郑州大学学报（工学版）》2013年第2期49-52,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：住建部科学技术项目(2008-k1-11);江苏省教育厅自然科学项目(11KJD560003);江苏省高校"青蓝工程"优秀骨干教师培养对象基金项目;宿迁市科技局基金项目(B2010021)

摘　　要：为研究废橡胶粒径、废橡胶取代率及再生混凝土取代率对混凝土立方体抗压强度及劈裂强度的影响,制备了多组不同废橡胶粒径、不同废橡胶取代率(0、5%、10%、15%)、不同再生混凝土取代率(20%、30%)的立方体试件.试验结果表明:废橡胶再生混凝土的强度与废橡胶或再生混凝土取代率关系明显,随取代率的增加而降低,最大降幅分别为45%和31%;与废橡胶粒径关系不明显,小粒径橡胶再生混凝土强度略低,抗压及劈裂强度下降幅度仅为1.6%和2.1%.通过对试验数据的统计回归,得到了废橡胶再生混凝土立方体抗压强度与劈裂强度之间关系的推荐公式.Based on the experiments of cube specimens of different waste rubber diameter,different waste rub- ber replacement rates（0,5 % ,10% , 15% ） the influence on the compressive strength and split tension strength was studied. The results show that the relationship between recycled concrete with rubber and the replacement rate of waste rubber,recycled concrete are obvious, and the strength of concrete increases when the rate of re- placement increases, the maximum reduction is 45% and 31%; but the relationship between recycled con- crete with rubber and the diameter of waste rubber is less obvious, the more smaller the strength is more low- er, the maximum reduction of the compressive strength and split tension strength is 1.6% ,2.1%. Based on the data regression, the relationship between the compressive strength and split tension strength of recycled concrete with rubber is established.

关 键 词：废橡胶 再生混凝土 取代率 抗压强度 劈裂强度 

分 类 号：TU528.01[建筑科学—建筑技术科学]