Portland cement is one of the most widely used materials in the construction industry. One of its inherent characteristics is shrinkage upon drying which may lead to formation of cracks. In response to this concern, expansive cements have been developed and used in the field for several decades. When mixed with water, expansive cements expand and create tensile stresses in the reinforcing steel. This generates compressive stresses in the concrete which reduced the cracking potential. However, the current procedure for preparation of expansive cements is based on trial and error. The objective of this research is to evaluate the physico-chemical, microstructural, and micromechanical properties of expansive cements. The research consists of both numerical modeling and experimental evaluation to obtain an understanding of the mechanical properties of expansive cements.

Agency
National Science Foundation (NSF)
Institute
Division of Civil, Mechanical, and Manufacturing Innovation (CMMI)
Application #
8703582
Program Officer
LaTanya S. Darby
Project Start
Project End
Budget Start
1987-07-01
Budget End
1990-12-31
Support Year
Fiscal Year
1987
Total Cost
$178,730
Indirect Cost
Name
Purdue Research Foundation
Department
Type
DUNS #
City
West Lafayette
State
IN
Country
United States
Zip Code
47907