装配式GRC-PC复合墙板收缩性能的试验研究
Experimental Study on the Shrinkage Performance of the Assembled GRC-PC Composite Wall Panel
黄浩1
作者信息
- 1. 中鼎国际工程有限责任公司,江西 萍乡 337000
- 折叠
摘要
文中开展了不同工艺条件下装配式GRC-PC复合墙板收缩性能的研究,并与单一材料墙板进行了对比.结果表明,GRC墙板与C30 混凝土墙板的收缩应变随着时间的延长,呈现先快速降低后平稳的趋势;C30 混凝土墙板的收缩应变稳定在-80×10-6 μm,较GRC墙板的收缩应变降低93.2%.与GRC墙板收缩应变相比,GRC-PC墙板的表面收缩应变及内部收缩应变的降低幅度分别为89.2%、94.9%;与C30 墙板收缩应变相比,复合墙板内部的收缩应变降幅达到 33.3%.加入钢丝网后,GRC-PC复合墙板+钢丝网的表面收缩应变开始下降,具有更好的抗裂性能.
Abstract
This paper studies the shrinkage performance of the assembled GRC-PC composite wall board under different process conditions and compares it with a single material wall board.The results show that the shrinkage strain of GRC wall board and C30 concrete single material wall board increases with the increase of time;the shrinkage strain of C30 concrete wall board is stable at-80×106 μm,which is 93.2%lower than that of GRC wall board.Compared with the pure GRC wall panel shrinkage strain,the surface and internal shrinkage strains of GRC-PC wall panels were 89.2%and 94.9%,respectively.Compared with the pure C30 wall board shrinkage strain,the shrinkage strain inside the composite wall board decreased by 33.3%.After the addition of wire mesh,the surface shrinkage strain of GRC-PC composite wall board+wire mesh began to decrease,with stronger crack resistance.
关键词
装配式结构/玻璃纤维混凝土/预应力混凝土/复合墙板/收缩应变Key words
Prefabricated structure/Fiberglass concrete/Prestressed concrete/Composite wall board/Shrinkage strain引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据