Inductive method for the orientation of steel fibers in recycled mortars

被引：17

作者：

Ferrandez, D. ^{[1
]}

Saiz, P. ^{[2
]}

Moron, C. ^{[1
]}

Dorado, M. G. ^{[3
]}

Moron, A. ^{[1
]}

机构：

[1] Univ Politecn Madrid, Dept Tecnol Edificac, E-28040 Madrid, Spain

[2] Univ Rey Juan Carlos, Dept Econ Financiera Contabilidad & Idioma Modern, Madrid 28032, Spain

[3] Univ Camilo Jose Cela, Dept Educ, Madrid, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2019年 / 222卷

关键词：

Cement mortar; Recycled concrete aggregate; Steel fiber; Magnetic induction; COMPOSITES; AGGREGATE; CONCRETE; WASTE;

D O I：

10.1016/j.conbuildmat.2019.06.113

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Mortars elaborated with recycled aggregates raise two main difficulties: lower mechanical strengths and higher shrinkage compared to traditional mortars. For this reason, fibers were used to improve the properties. Steel fibers are the most employed for their ferromagnetic qualities, what helps to orient them influenced by magnetic field. This paper argues how recycled mortars with steel fiber oriented under the influence of 500 mT field reach flexural strengths 10% higher than those with non-oriented fibers. Thus, mechanical strengths are closer to traditional mortars. Inclusion of fibers in mortar is suitable for obtaining shrinkage values similar to those obtained in traditional mortars. (C) 2019 Published by Elsevier Ltd.

引用

页码：243 / 253

页数：11