Autogenous shrinkage of dam concrete and its influence on thermal stress

Title: Autogenous shrinkage of dam concrete and its influence on thermal stress
Author(s): Hideaki Sato, Shingo Miyazawa, and Astushi Yatagai
Paper category : conference
Book title: International RILEM Conference on Advances in Construction Materials Through Science and Engineering
Editor(s): Christopher Leung and K.T. WAN
ISBN: 978-2-35158-116-2
e-ISBN: 978-2-35158-117-9
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 301 - 308
Total Pages: 8
Nb references: 6
Language: English

Abstract: It is very important to estimate volume change of concrete in order to control thermal cracking in concrete dams. In this study, autogenous shrinkage of dam concrete with full-sized aggregate was experimentally investigated. Thermal stress in a gravity dam, which is constructed by ELCM (Extended Layer Construction Method), was calculated by three dimensional FEM analyses. It was pointed out that autogenous shrinkage could be so large in external concrete and tensile stress caused by the difference of autogenous shrinkage strain between internal concrete and external concrete should be taken into account for control of thermal cracking in concrete dam.

Online publication: 2011-10-31
Publication type : full_text
Public price (Euros): 0.00