基于高层建筑承重结构的陶粒混凝土制备和性能研究

发布时间：2018-02-16 05:18

本文关键词： 建筑承重结构陶粒混凝土制备抗弯性能　出处：《科技通报》2017年08期 　论文类型：期刊论文

【摘要】：陶粒混凝土在工程应用中具有许多优势,存在广阔前景。但我国相关的陶粒混凝土设计制备技术还不成熟,因此文中提出以高层建筑承重结构中的陶粒混凝土为探讨对象,对该材料的制备和性能实现有效研究。首先,通过实验分别制作16块陶粒混凝土建筑承重结构试块,采用不同陶粒体积、粉煤灰掺量和水灰比分别制作陶粒混凝土,并比较在不同条件下配置的陶粒混凝土抗压强度变化数据,通过实验获取了陶粒混凝土的最佳配制比例,分别是陶粒掺量最佳结果为45%,粉煤灰最佳掺量为24%,水灰比最佳结果0.24;其次,运用相同抗压强度的陶粒混凝土并分别设置不同配筋率制作三根混凝土梁,利用实验分析不同荷载压力下建筑承重梁的抗弯性能。通过实验可知不同配比使陶粒混凝土具备不同抗压强度,在混凝土相同抗压强度条件下不同配筋率使建筑承重结构具有不同抗弯性能。
[Abstract]:Ceramsite concrete has many advantages in engineering application and has a broad prospect. However, the relevant design and preparation techniques of ceramsite concrete in China are not yet mature, so this paper proposes to take the ceramsite concrete in the load-bearing structure of high-rise buildings as the object of discussion. The preparation and performance of the material are studied effectively. Firstly, 16 ceramsite concrete building load-bearing structure test blocks are made by experiments, and the ceramsite concrete is made with different volume of ceramsite, fly ash content and water-cement ratio, respectively. The compressive strength data of ceramsite concrete under different conditions are compared and the optimum proportion of ceramsite concrete is obtained through experiments. The optimum content of ceramsite is 45%, the best amount of fly ash is 24%, the best ratio of water to cement is 0.24. Secondly, three concrete beams are made by using ceramsite concrete of the same compressive strength and setting different reinforcement ratio. The flexural behavior of building load-bearing beams under different loads and pressures is analyzed by experiments, and the results show that different ratios make ceramsite concrete have different compressive strength. Under the condition of the same compressive strength of concrete, different reinforcement ratio makes the load-bearing structure have different flexural properties.
【作者单位】：重庆工商大学融智学院;
【基金】：重庆工商大学融智学院2016年度博士研究项目(编号:20165001)
【分类号】：TU528.2

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