782
4270.005
Harmathy, T.Z. and J.E. Berndt
Journal
Article
American Concrete Institute
1966
93-112
Y
The stress-strain relationship in compression of hydrated portland cement (with a water-cement ratio of 0.33) and a lightweight concrete was studied at elevated temperatures. The properties of both materials seemed to be virtually unaffected by temperature up to about 400F. Above this, the modulus of elasticity and ultimate strength decreased with increasing temperature. These changes were more definite for hydraated portland cement.