期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 131, 期 -, 页码 39-49出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2016.11.008
关键词
Expansive concrete; Self-stressed member; Restrained strain; Self-stress; Estimation model
资金
- Erasmus Mundus Programme of the European Union
- Construction Group of the University of A Coruna (Spain)
- Programa Estatal de I+D+i Orientada a los Retos de la Sociedad, Ministerio de Economia y Competitividad, Spain
Models for restrained strains and self-stresses estimation based on the concepts of the conservation law of chemical energy and initial strains calculation in the expansive concrete members are considered, together with their advantages and disadvantages. A modified strains development model (MSDM) is proposed, based on the initial strains calculation approach and extended by taking into account cumulative force induced by the reinforcement as an additional restraint for development of expansion strains. Validity of the proposed MSDM is confirmed by experimental results obtained from tests on uniaxially symmetrically reinforced high expansion energy capacity concrete members. (C) 2016 Elsevier Ltd. All rights reserved.
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