Paper Title:
Deterioration of Mechanical Properties of High-Strength Pumpcrete after Exposure to High Temperatures
  Abstract

This paper makes an experimental study of mechanical properties of high-strength pumpcrete under fire, and the effects of heating rate, heating temperature and cooling mode on the residual compressive strength(RCS) of high-strength pumpcrete are investigated. The results show that under air cooling, the strength deterioration speed of high-strength concrete after high temperature increases with the increase of concrete strength grade. Also, the higher heating temperature is, the lower residual compressive strength value is. At the same heating rate (10°C/min), the residual compressive strength of C45 concrete after water cooling is a little higher than that after air cooling; but the test results are just the opposite for C55 and C65 concrete. The strength deterioration speed of high-strength concrete after high temperature increases with the increase of heating rate, but not in proportion. And when the heating temperature rises up between 200°C and 500°C, heating rate has the most remarkable effect on the residual compressive strength of concrete. These test results provide scientific proofs for further evaluation and analysis of mechanical properties of reinforced-concrete after exposure to high temperatures.

  Info
Periodical
Advanced Materials Research (Volumes 168-170)
Edited by
Lijuan Li
Pages
564-569
DOI
10.4028/www.scientific.net/AMR.168-170.564
Citation
G. L. Yuan, J. W. Zhang, J. W. Chen, D. Y. Zhu, "Deterioration of Mechanical Properties of High-Strength Pumpcrete after Exposure to High Temperatures", Advanced Materials Research, Vols. 168-170, pp. 564-569, 2011
Online since
December 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Yong Hui Hu, Yun Xin Wu, Guang Yu Wang, Jun Kang Guo
Abstract:Different distributed residual stresses were introduced by quenching and two shot-peening treatments on 7075 aluminum alloy. The residual...
241
Authors: Miao Zhou Huang, Tao Meng, Xiao Qian Qian, Jin Jian Zhang
Abstract:The flow ability, mechanical properties and microstructure of concrete with different strength grades affected by nano-SiO2 and...
480
Authors: Yan Kun Zhang, Xiao Hu Li, Pan Zhang
Chapter 1: High Strength High Performance Materials and New Structural System
Abstract:Based on the experiment, the splitting tensile strength and axial tensile strength of specified density steel fiber concrete are studied. The...
330
Authors: Yan Kun Zhang, Er Yan Chen, Zhen Lei Guo
Chapter 2: Advanced Construction Materials
Abstract:From the experimental research, the cube compressive strength and prism compressive strength of combined aggregate concrete are compared....
413
Authors: Hong Zhu Quan
Chapter 2: Material Engineering and Material Applications
Abstract:The effects of sustained high temperature on concrete properties are discussed in this paper. In this experiment, concrete with 6 types of...
150