Freeze-thaw resistance of steel fibre reinforced rubberised concrete

被引：70

作者：

Alsaif, Abdulaziz ^{[1
,2
]}

Bernal, Susan A. ^{[3
,4
]}

Guadagnini, Maurizio ^{[1
]}

Pilakoutas, Kypros ^{[1
]}

机构：

[1] Univ Sheffield, Dept Civil & Struct Engn, Sir Frederick Mappin Bldg,Mappin St, Sheffield S1 3JD, S Yorkshire, England

[2] King Saud Univ, Dept Civil Engn, POB 800, Riyadh 11421, Saudi Arabia

[3] Univ Sheffield, Dept Mat Sci & Engn, Sir Robert Hadfield Bldg,Mappin St, Sheffield S1 3JD, S Yorkshire, England

[4] Univ Leeds, Sch Civil Engn, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 195卷

基金：

英国工程与自然科学研究理事会;

关键词：

Freeze-thaw; Frost resistance; Rubberised concrete; Steel fibre concrete; Flexible pavements; CRUMB RUBBER; MECHANICAL-PROPERTIES; DURABILITY; PERFORMANCE; PARTICLES;

D O I：

10.1016/j.conbuildmat.2018.11.103

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study evaluates the freeze-thaw performance of steel fibre reinforced rubberised concretes (SFRRuC) engineered for flexible concrete pavements. The effect of large volumes of fine and coarse rubber particles (i.e. 30% and 60% volumetric replacement of natural aggregates) is determined for concretes reinforced with 40 kg/m(3) of a blend of manufactured steel fibres and recycled tyre steel fibres. The freeze-thaw performance is assessed through surface scaling, internal damage, residual compressive strength and flexural behaviour. The results show that SFRRuC are able to withstand 56 freeze-thaw cycles with acceptable scaling and without presenting internal damage or degradation in mechanical performance. This indicates that SFRRuC can perform well under extreme freeze-thaw conditions and can be used to construct long-lasting flexible pavements as a sustainable alternative to asphalt concretes. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：450 / 458

页数：9

共 59 条

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