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Author:

邓宗才 (邓宗才.) (Scholars:邓宗才) | DAUD Jumbe R (DAUD Jumbe R.)

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CQVIP PKU CSCD

Abstract:

采用钢纤维与粗聚烯烃纤维或细聚乙烯醇纤维混掺技术,制备了新型超高强度活性粉末混凝土(RPC),以改善RPC的韧性及脆性;由弯曲试验测其荷载-位移曲线,分析了纤维品种、掺量变化对新型RPC韧性的影响规律,并对比了在胶凝材料中添加超细水泥或硅灰所制备的RPC的韧性.结果表明:混掺纤维RPC的荷载-位移曲线具有二次硬化特征;混掺纤维RPC的韧性指标明显高于单掺钢纤维RPC,以1%钢纤维体积分数与9kg/m3粗聚烯烃纤维混掺所制备的超细水泥RPC韧性指标T(7)比单掺钢纤维时提高70%;从经济性看,以1%钢纤维体积分数与粗聚烯烃纤维或细聚乙烯醇纤维混掺对RPC增韧效果更优;当钢纤维体积分数为2%时,细...

Keyword:

活性粉末混凝土 二次硬化 硅灰 弯曲韧性 混掺纤维

Author Community:

  • [ 1 ] 北京工业大学城市与工程安全减灾省部共建教育部重点实验室

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Source :

建筑材料学报

Year: 2015

Issue: 02

Volume: 18

Page: 202-207

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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