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首页> 外文会议>Concrete Science and Engineering A Tribute to Arnon Bentur International RILEM Symposium; 20040324; Evanston,IL; US >THE EFFECTS OF FORMULATION ON THE PROPERTIES OF SELF-CONSOLIDATING CONCRETE
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THE EFFECTS OF FORMULATION ON THE PROPERTIES OF SELF-CONSOLIDATING CONCRETE

机译：配方对自固结混凝土性能的影响

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摘要

SCC is a generic name for self-consolidating concrete that its properties vary widely according to the application used. A key factor for successful implementation of SCC is a clear understanding of the effects of the mix design on its properties. SCC is formulated to achieve four main attributes; deformability, flowing ability, resistance to segregation, and passing ability. These attributes are acquired by incorporation of effective superplasticizer (SP) and either low w:c, and low agg:c, or viscosity modifying agent (VMA). However, there is no correlation between the fresh and mechanical properties and the compressive strength is best approximated by the binder-space ratio. Because of the low yield stress and formulation, SCC is especially susceptible to segregation and high shrinkage. The resistance against sedimentation can be augmented by using fines, such as slag, ground limestone, and quartz that act as density modifiers. Similarly, the shrinkage is reduced by incorporation of filler, specifically non-pozzolanic one.
机译：SCC是自固结混凝土的通用名称，其性质根据所使用的应用而有很大不同。成功实施SCC的关键因素是清楚了解混合设计对其性能的影响。制定SCC具有四个主要属性：变形能力，流动能力，抗偏析能力和通过能力。这些属性是通过掺入有效的高效减水剂（SP）和低w：c，低agg：c或粘度调节剂（VMA）来获得的。但是，新鲜性能和机械性能之间没有相关性，而抗压强度最好通过粘合剂-空间比来近似。由于屈服应力和配方低，SCC特别容易发生偏析和高收缩率。可以通过使用细粉（例如用作密度调节剂的矿渣，石灰石和石英粉）来增强抗沉淀性。类似地，通过加入填料，特别是非火山灰的填料，减少了收缩。

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