Strength and Influencing Factors of Sleeve Grouting Materials in Prefabricated Building

被引：0
|
作者：
Xiong Y. [1 ]
Li J. [1 ]
Sun B. [2 ]
Mao S. [2 ]
机构：
[1] Faculty of Architectural, Civil Engineering and Environment, Ningbo University, Ningbo
[2] China Academy of Building Research, Beijing
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2019年 / 22卷 / 02期
关键词：
Compressive strength; Grouting material; Prefabricated building; Reinforced sleeve joint; φ18; cylinder;
D O I：
10.3969/j.issn.1007-9629.2019.02.017
中图分类号：
学科分类号：
摘要：
In order to investigate the strength and influencing factors of reinforced sleeve joint grouting materials in prefabricated concrete structures, 402 grouting material test blocks were designed and prepared to test the compressive strength and observe the shape of specimen, size and water-material ratio for block compressive strength. The relationship of compressive strength between φ18 cylindrical specimen with 1:1 of height-diameter ratio and standard specimens was established under different ages and strength conditions. The results show that the shape of grouting material test block has obvious influence on the compressive strength, while the size has no significant influence on the compressive strength of grouting material; the strength of the grouting material decreases with the increase of water-material ratio; the compressive strength of φ18 cylindrical specimen and standard specimen basically obeys the normal distribution; on the basis of experiment, the conversion formula of compressive strength of standard specimen and φ18 cylindrical specimen is established, which can provide a theoretical basis for testing the solid strength of reinforced sleeve joint grouting material in engineering. © 2019, Editorial Department of Journal of Building Materials. All right reserved.
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页码：272 / 277
页数：5
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