摘要
进行了7组室内试验,研究材料选择、矿物掺合料、化学外加剂等因素对超流态混凝土的性能和抗压强度的影响,得出胶凝材料用量应不小于510 kg/m^3;适量掺加粉煤灰和磨细矿渣,不仅可以大大提高混凝土的密度,显著改善混凝土的工作性能及抗裂性;采用BFJ-1型高效减水剂掺量为总量的0.8%~1.5%为宜。研究结果能够指导施工,为超流态混凝土的推广提供依据。
Based on seven group tests,the impact of selection of materials,mineral admixture and chemical admixture on the properties and compressive strength of super flow concrete. The results obtain that gel material content is no more than 510 kg/m-3,fly ash and slag are moderately added to the concrete,it can significantly improve density,working properties and crack resistance of concrete,the content of superplasticizer accounts for 0. 8% - 1. 5% of the total. It can guides construction and provide a strong proof for promotion of super flow concrete.
出处
《山西建筑》
2017年第28期114-115,共2页
Shanxi Architecture
关键词
超流态混凝土
配合比
抗压强度
试验研究
super flow concrete,mixture ratio,compressive strength,test study
