| 自密实混凝土塑性收缩性能研究 |
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| 引用本文： | 柳献,袁勇,Ahmed Loukili.自密实混凝土塑性收缩性能研究[J].混凝土与水泥制品,2002,25(5):6-10. |
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| 作者姓名： | 柳献 袁勇 Ahmed Loukili |
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| 作者单位： | 1. 同济大学建工系,上海200092
2. 法国南特中央大学土木工程实验室 |
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| 摘 要： | 采用不同的实验方法测量了不同组成混凝土的收缩，孔隙水压力和超声波在试件中的传播速度。试验表明，超声波可以作为测量混凝土凝结时间的一种工具。结果分析表明，孔隙水压力是产生塑性收缩的主要原因之一，同时，孔隙水压力受养护条件，配合比，水和掺合料等因素的影响。
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| 关 键 词： | 自密实混凝土 塑性收缩 孔隙水压力 超声波 |
| 文章编号： | 1000-4637(2002)05-06-05 |
Study on Plastic Shrinkage Properties of Self－ compacting Concrete |
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| Ahmed Loukili.Study on Plastic Shrinkage Properties of Self－ compacting Concrete[J].China Concrete and Cement Products,2002,25(5):6-10. |
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| Authors: | Ahmed Loukili |
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| Abstract: | Several tests and instruments are designed to measure the variations of shrinkage, pore pressure, and ultrasonic velocity with ages of specimens in different compositions. Tests found that the wave velocity may be used as an indicator of setting time. Analysis also displayed that pore water pressure in capillary of self-compacting concrete may be the main driving force for its early plastic shrinkage, and it may be influenced by curing condition, proportion and water/mineral admixture ratio. |
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| Keywords: | Self-compacting concrete Early-age behavior Plastic shrinkage Pore water pressure ultrasonic velocity |
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