Creep behavior of Portland cement, mortar, and concrete under biaxial stress

Technical Report · Tue Mar 01 04:00:00 EST 1977

DOI:https://doi.org/10.2172/7107855· OSTI ID:7107855

Kesler, C E

Equipment developed at the Oak Ridge National Laboratory was used to make uniaxial and biaxial creep tests on mortar, normal weight concrete and lightweight concrete using both sealed and unsealed specimens. Some of the results are questionable because of the poor performance of the strain gages. Nevertheless, useful information was obtained on shrinkage, creep and Poisson's ratio. Generally speaking, the results were consistent with the work of other investigators. Both the shrinkage and creep were highest for the mortar and lowest for the normal weight concrete and intermediate for the lightweight concrete. The shrinkage and creep were highest for the unsealed specimens. A Poisson's ratio effect in creep was noted but the magnitudes were slightly less than those expected for elastic loadings.

• Research Organization: Illinois Univ., Urbana (USA)
• OSTI ID: 7107855
• Report Number(s): COO-2106-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
BUILDING MATERIALS
CONCRETES
CREEP
MATERIALS
MECHANICAL PROPERTIES
SHRINKAGE
TEST FACILITIES