Experimental study on the interfacial bond between short cut basalt fiber bundles and cement matrix

被引：32

作者：

Cui, Sheng'ai ^{[1
]}

Xu, Xuefeng ^{[1
]}

Yan, Xianjiao ^{[1
]}

Chen, Zhao ^{[1
]}

Hu, ChengYan ^{[2
]}

Liu, ZuoLei ^{[2
]}

机构：

[1] Southwest Jiaotong Univ, Sch Civil Engn, Inst Civil Engn Mat, Chengdu 610031, Peoples R China

[2] Sichuan Aerosp Tuoxin Basalt Ind Co LTD, Dazhou 610100, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 256卷

基金：

中国国家自然科学基金;

关键词：

Basalt fiber; Fiber sizing agent; Pull-out test; SEM; Bonding strength; Pull-out failure; Rupture failure; PULL-OUT; MECHANICAL-PROPERTIES; SURFACE-TREATMENT; CONCRETE; PERFORMANCE; STRENGTH;

D O I：

10.1016/j.conbuildmat.2020.119353

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Bonding performance of basalt fiber reinforced cementitious composites (BFRCC) was studied through analyses on pull-out tests and scanning electron microscope (SEM) results. It is concluded that: (1) The rupture failure occurred for dispersed and flexible-type fibers, the pull-out failure controlled cluster-type fibers, and failure modes of alkali-resistant fibers are related to their embedded lengths (l(e)). (2) As l(e) increases, peak pull-out load (N-pmax) increases and then becomes unchanged. Appropriate le is within 15-18 mm. (3) As specimen ages, N-pmax first increases and starts to decrease at 7-day. (4) Comparisons of bonding strength among different fiber types: dispersed > flexible > alkali-resistant > cl uster. (5) SEM analyses are consistent with the macro bonding performance of BFRCC. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：13

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