AN AGGREGATE-SPACE MODEL FOR SELF-COMPACTING CONCRETE

机译：自密实混凝土的整体空间模型

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For the sake of the high workability, self-compacting concrete is generally prepared by the high content of cement and mineral admixture or fillers, the limited coarse aggregate volume and use of large amount of chemical admixture and etc. In this paper, the mechanism of "self-compacting" of fresh concrete was discussed and then an aggregate-space model for self-compacting concrete was proposed, aimed at further establishing the relationship between composition, microstructure and properties of self-compacting concrete(SCC) and developing a new mixing design method for SCC. Meanwhile, a parameter of aggregate-space coefficient was used to characterize this model. And the relationship between volume of aggregate and aggregate-space coefficient was established. Experiments were carried out to verify this model.

机译：为了提高可加工性，通常通过高含量的水泥和矿物外加剂或填料，有限的粗集料体积和使用大量的化学外加剂等来制备自密实混凝土。讨论了新鲜混凝土的“自密实”，然后提出了自密实混凝土的聚集空间模型，旨在进一步建立自密实混凝土（SCC）的组成，微观结构与性能之间的关系，并开发了一种新的混合料SCC的设计方法。同时，使用聚集空间系数的参数来表征该模型。建立了骨料体积与骨料空间系数的关系。进行实验以验证该模型。

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来源
《第二届自密实混凝土设计、性能及应用技术国际研讨会(2nd International Symposium on Design,Performance and Use of Self-Consolidating Concrete SCC'2009-China)》|2009年|212-218|共7页
会议地点 Beijing(CN)
作者
Guangeheng Long; Youjun Xie; Yunhuan Liu; Zhiwu Yu;
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作者单位

School of Civil Engineering and Architecture, Central South University,Changsha 410075,P.R.China;

School of Civil Engineering and Architecture,Central South University,Changsha 410075,P.R.China;

Quality and security administrating station of construction engineering,Chenzhou city 423000,P.R.China;

School of Civil Engineering and Architecture,Central South University, Changsha 410075,P.R.China;

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AN AGGREGATE-SPACE MODEL FOR SELF-COMPACTING CONCRETE

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