摘要
基于当前装配式钢结构住宅对新型墙板的需要以及工业副产品的处理问题,采用矿渣微粉、粉煤灰、脱硫石膏三元胶凝体系,同时加入聚苯乙烯颗粒,制备轻质高强的复合墙板。通过28 d立方体抗压强度试验确定复合墙体材料的最优配比。基于最优配合比,选用钢筋和GFRP筋2种配筋材料分别制作1∶2缩尺的模型墙板,并进行墙板抗弯性能测试。结果表明:复合胶凝体系墙板抗弯性能良好,其中钢筋墙板的极限承载力优于GFRP筋墙板,且钢筋墙板主要发生延性破坏,而GFRP筋墙板脆性破坏特征明显。
Based on the current need for new wall panels for assembled steel structure houses and the disposal of industrial by-products,a ternary gel system consisting of slag micro-meal,fly ash and skimmed gypsum is used to prepare composite wall panels of light weight and high tenacity by adding polyethylene pellets.The optimum composition of composite wall panels is determined by the 28-day cube compressive strength.Based on the optimal mix ratio,the 1/2 scale model wallboard is made of steel bar and GFRP bar,and the bending performance of the wallboard is tested.The results show that the bending performance of the composite cementitious system wallboard is good,and the ultimate bearing capacity of the reinforced wallboard is better than that of GFRP-reinforced wallboard,and the ductile failure of the reinforced wallboard mainly occurs,while the brittle failure of GFRP-reinforced wallboard is obvious.
作者
方伟
FANG Wei(Jinan Rail Transit Group Co.Ltd.,Ji'nan 250000,China)
出处
《新型建筑材料》
2023年第3期86-90,共5页
New Building Materials
基金
国家自然科学基金项目(51808329)。
关键词
复合墙板
三元凝胶体系
配合比
极限承载力
composite wall panel
ternary gelling system
mix proportion
ultimate bearing capacity
