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Author:

李悦 (李悦.) (Scholars:李悦) | 阮大威 (阮大威.)

Indexed by:

CQVIP PKU CSCD

Abstract:

采用改进的平板试验法研究了减水剂、减缩剂、膨胀剂对混凝抗裂性能的影响.试验结果表明掺入萘系减水剂,混凝土的初始裂缝推迟,但单位开裂面积和最大裂缝宽度都要大于未添加减水剂的混凝土;减缩剂能推迟裂缝出现时间,减小混凝开裂面积及最大裂缝宽度;在早期养护不充分的情况下,膨胀剂使初始开裂时间有所提前,单位开裂面积增大,但是适量的膨胀剂能减小最大裂缝宽度;同时掺入膨胀剂和减缩剂,其抗裂效果较单掺入膨胀剂并没有大幅的提升,较单掺入减缩剂的混凝土反而有所降低.

Keyword:

外加剂 平板法 抗裂性能 混凝土

Author Community:

  • [ 1 ] [李悦]北京工业大学
  • [ 2 ] [阮大威]北京工业大学

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Source :

混凝土

ISSN: 1002-3550

Year: 2014

Issue: 5

Page: 52-56

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count: 17

Chinese Cited Count:

30 Days PV: 1

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