聚合物掺杂改性混凝土及对其微观结构的影响

发布时间：2019-02-16 13:45

【摘要】：针对普通的混凝土存在刚度较大、柔性不足且抵抗变形能力较小等问题,提出一种基于差热分析的聚合物掺杂改性混凝土及对其微观结构的影响研究方法。该方法先对聚合物掺杂改性混凝土的基本力学性能进行实验研究,实验中采用聚合物掺量为0、0.05、0.10、0.15这四种配比进行设计,由此得到聚合物掺杂量对聚合物掺杂改性混凝土力学性能的影响,在此基础上结合电镜、孔结构以及差热分析法进行聚合物掺杂改性混凝土的微观结构性能试验,从聚合物掺杂改性混凝土的微观结构方面分析混凝土掺加聚合物后的影响,以及对聚合物掺杂改性混凝土后具有的改性机理进行分析,并利用聚合物掺杂改性混凝土的性能试验和钻孔检测法,对聚合物掺杂改性混凝土的微观结构进行验证。实验结果表明,所提方法能够有效提高混凝土路面的使用价值,同时对研究具有更优性能的混凝土有一定的参考价值。
[Abstract]:In order to solve the problems of high stiffness, low flexibility and low resistance to deformation of ordinary concrete, a study method of polymer doped modified concrete based on differential thermal analysis (DTA) and its influence on microstructure is proposed. In this method, the basic mechanical properties of polymer doped modified concrete are studied experimentally. In the experiment, four ratios of 0 0. 05% 0. 05% 0. 10% 0. 10% 0. 15% polymer are used to design. The influence of polymer doping amount on the mechanical properties of polymer doped modified concrete was obtained. Based on this, the microstructure and properties of polymer doped modified concrete were tested by electron microscope, pore structure and differential thermal analysis. From the aspect of microstructure of polymer doped modified concrete, this paper analyzes the influence of polymer on concrete and the modification mechanism of polymer doped modified concrete. The microstructure of polymer doped modified concrete was verified by performance test and borehole test. The experimental results show that the proposed method can effectively improve the use value of concrete pavement and has certain reference value for the study of concrete with better performance.
【作者单位】：黄淮学院;
【分类号】：TU528

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