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聚丙烯纤维混凝土早期收缩性能试验研究 被引量:25

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摘要 研究相同水灰比和相同坍落度2种试验条件下,不同掺量的聚丙烯纤维对混凝土早期收缩和工作性的影响。试验表明:2种试验条件下,聚丙烯纤维均能在一定范围内降低混凝土的早期收缩;由于聚丙烯纤维的掺入会明显降低新拌混凝土的坍落度,故与同水灰比条件下纤维混凝土的减缩率相比,同坍落度条件下的减缩率略有降低。结合试验结果,从早期收缩角度出发,进一步分析聚丙烯纤维改善混凝土早期收缩裂缝的作用机理。
出处 《新型建筑材料》 北大核心 2006年第1期25-28,共4页 New Building Materials
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