CAJ | 학술논문

结合重庆瑞安超高层项目对C60钢板剪力墙混凝土性能的要求，通过采用重庆当地机制砂与天然河砂混合的方式，并对胶凝材料进行优选，制备出满足工程设计要求的C60钢板剪力墙混凝土。结果表明，机制砂与河砂比例为5：5时，混凝土的各项性能良好且经济合理；胶凝材料体系采用水泥、粉煤灰与硅灰组合较合理；掺入6%HCSA膨胀剂可以有效抑制混凝土的自收缩。
결합중경서안초고층항목대C60강판전력장혼응토성능적요구，통과채용중경당지궤제사여천연하사혼합적방식，병대효응재료진행우선，제비출만족공정설계요구적C60강판전력장혼응토。결과표명，궤제사여하사비례위5：5시，혼응토적각항성능량호차경제합리；효응재료체계채용수니、분매회여규회조합교합리；참입6%HCSA팽창제가이유효억제혼응토적자수축。
Based on the requirements of C60 concrete with steel plate shearing wall by Chongqing Rui An ultra high-rise project, the C60 concrete with steel plate shearing wall is successfully prepared by optimizing cementitious system and mixed sand. The mixed sand is composed of natural river sand and manufactured sand in Chongqing area. The results show that when the proportion of manufactured sand to river sand is 5:5, the properties of concrete are better and economical. The optimized cementitious system is composed of cement, fly-ash and silica fume. The autogenous shrinkage of concrete could be restrained by adding 6%HCSA expansion agent.