Investigation of Spall Repair for Concrete Pavement (7-2919-3)
Author(s):
T. Tang, D.G. Zollinger
Publication Date:
July 1997
Abstract:
This report summarizes the research results obtained from laboratory and field tests of spall repair materials. Repair materials tested included cement-based ready-mix materials, polymer-based materiels, and concrete containing accelerating admixtures. Tests were conducted to measure time of setting, compressive and flexural strengths, fracture toughness, and bond shear strength between repair material and base concrete. These tests can be used to characterize spall repair materials. Researchers found that properties of the repair materials depend on the age and environmental factors. Spall repairs with these materials on concrete pavement were evaluated in the Houston area. Performance of repair patches depends on the strength, especially bond strength, developed at the time when the repaired road is open to traffic.
Report Number:
7-2919-3
Keywords:
Admixture, Age, Bond Strength, Cement-Based Material, Compressive Strength, Delamination, Flexural Strength, Fracture Toughness, Polymer-Based Material, Portland Cement Concrete Pavement, Relative Humidity, Repair, Spall, Temperature, Time of Setting
Electronic Link(s):
Document/Product: http://tti.tamu.edu/documents/2919-3.pdf
Publication/Product Request
TTI reports and products are available for download at no charge. If an electronic version is not available and no instructions on how to obtain it are given, contact Publication Services at pubquest@ttimail.tamu.edu.
