Title:
Temperature Distribution and Mechanical Properties of High-Strength Silica Fume Concrete at Temperatures up
to 200 °C
Author(s):
Albert N. Noumowe
Publication:
Materials Journal
Volume:
100
Issue:
4
Appears on pages(s):
326-330
Keywords:
compressive strength; gradient; high-strength concrete; lightweight aggregate; modulus of elasticity; temperature; tensile strength.
DOI:
10.14359/12671
Date:
7/1/2003
Abstract:
Data on the behavior of high-strength concrete at high temperatures is of concern in predicting the safety of buildings and construction in response to certain accidents or particular service conditions. Investigations were carried out on the behavior of three concretes (high-strength concrete with and without polypropylene fibers and lightweight aggregate concrete). The three groups of specimens were subjected to identical testing conditions. After a heating-and- cooling cycle at 200 °C, mechanical tests were carried out. Thermal gradient and concrete thermal stability during heating, compressive strength, modulus of elasticity, and splitting tensile strength were analyzed. Comparisons and conclusions were drawn about thermal stability at high temperatures and the residual mechanical properties of the tested concretes.