RESEARCH ARTICLE
Experimental Research on the Hydration Heat Temperature Field of Hollow Concrete Piers
Jun Peng1, Chunping Tang*, 2, Liangliang Zhang3, Ayad Thabit Saeed
Article Information
Identifiers and Pagination:
Year: 2014Volume: 8
First Page: 482
Last Page: 487
Publisher ID: TOBCTJ-8-482
DOI: 10.2174/1874836801408010482
Article History:
Received Date: 12/7/2014Revision Received Date: 11/9/2014
Acceptance Date: 11/11/2014
Electronic publication date: 31/12/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Abstract
Measuring points were observed continuously to reveal the hydration heat temperature distribution of hollow concrete bridge pier. The results showed that as the thickness of the pier increased, the central temperature of the pier increased significantly due to hydration and the heat was difficult to be dissipated. The hydration temperature accounted for up to 70% of the maximum temperature rise during 20 h and reached the maximum temperature at 24 h after pouring the concrete. There was a jump value between the central temperature and surface temperature in a short period after removing the framework. The jumping was the most dangerous moment for the cracking of pier surfaces. Therefore, the formwork removal time has to be determined prudently and corresponding measures have to be conducted to reduce the possibility of pier surface cracking.