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	利用低品质原材料配制C30和C40自密实混凝土的研究
	王强 ; 石梦晓 ; WANG Qiang ; SHI Mengxiao
	2016-03-30 ; 2016-03-30
关键词	自密实混凝土 泵送混凝土 强度 耐久性 underground cavern excavation by steps numerical analysis rock mass stability TU528.53
其他题名	Research on the C30 and C40 concretes prepared with low-quality raw materials
中文摘要	针对低品质的水泥和骨料等原材料,采用含有黏度改性剂的减水剂,配制了C30和C40自密实混凝土。与普通泵送混凝土相比,自密实混凝土的水泥用量低、水灰比低、砂率大。试验结果显示:自密实混凝土具有良好的工作性,其强度、弹性模量、干燥收缩、抗氯离子渗透性、抗碳化性能与同强度等级的普通泵送混凝土的性能相近。; C30 and C40 self-compacting concretes with low-quality cement and aggregates were prepared by using superplasticizer containing viscosity modifier.The cement content and water to cement ratio of the self-compacting concrete are lower than those of the pumping concrete,but its sand ratio is much higher than that of the pumping concrete.The results show that the workability of the self-compacting concrete is excellent.The strength,elastic modulus,drying shrinkage,anti-permeability to iron chloride,and anti-carbonation of the self-compacting concrete are close to those of the pumping concrete in the same strength grade.
语种	中文 ; 中文
内容类型	期刊论文
源URL	[http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/149158]
专题	清华大学
推荐引用方式 GB/T 7714	王强,石梦晓,WANG Qiang,等. 利用低品质原材料配制C30和C40自密实混凝土的研究[J],2016, 2016.
APA	王强,石梦晓,WANG Qiang,&SHI Mengxiao.(2016).利用低品质原材料配制C30和C40自密实混凝土的研究..
MLA	王强,et al."利用低品质原材料配制C30和C40自密实混凝土的研究".(2016).

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