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基于高层建筑承重结构的陶粒混凝土制备和性能研究

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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.
Study on Preparation and Properties of Ceramsite Concrete Based on High-rise Building Load-bearing Structure
Ceramsite concrete has many advantages in engineering application. But China's relevant system design of ceramsite concrete preparation technology is not mature, so the paper proposed the ceramsite concrete load-bearing structure in high-rise buildings as the object of study, the material preparation and effective implementation of performance. First of all, the experiments were made of 16 ceramsite concrete block building load-bearing structure, with different ceramic volume, the amount of fly ash and water cement ratio of ceramsite concrete prepared respectively, and compared under different conditions in the configuration of the ceramsite concrete compressive strength change data were obtained by experiments, the best compounding ratio of ceramsite concrete, respectively ceramsite the best result is 45%, the best fly ash content is 24%, the optimal water cement ratio of 0.24;secondly, using the same compressive strength of ceramsite concrete and set different reinforcement ratio of three concrete beams, flexural performance analysis of different construction bearing load pressure beam by experiment. The experiments show that the different proportion of ceramsite concrete has different compressive strength, and under different compressive strength of concrete, the different reinforcement ratio makes the bearing structure of the building have different bending performance.

the building load-bearing structureceramsite concretepreparationflexural performance

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重庆工商大学融智学院,四川重庆401320

建筑承重结构 陶粒混凝土 制备 抗弯性能

重庆工商大学融智学院2016年度博士研究项目

20165001

2017

科技通报
浙江省科学技术协会

科技通报

CSTPCDCHSSCD
影响因子:0.457
ISSN:1001-7119
年,卷(期):2017.33(8)
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