Development of Statewide Portland Cement Patching Products and Procedures
Abstract
An investigation was performed to develop concrete mixtures capable of developing high early strength combined with relatively low shrinkage characteristics, good bonding characteristics and generally good compatibility with existing substrate and surrounding media. These concrete mixtures are intended for patching of portland cement rigid pavement and bridge decks. This investigation consists of two parts, an Investigation in the field and an investigation in the laboratory. The field investigation consisted of testing a material that ODOT was using in 1997 to understand the state of the art in Oklahoma and to have a base line for comparison. Some experiments were conducted in the field. The laboratory investigation involved varying the mix proportions with different combinations of accelerator and superplasticizer in the mix design and assessing their material characteristics. Type I and Type III portland cements were investigated along with concrete made with fiber as an admixture. Five promising proprietary patch mixes were also tested in this investigation. At the completion of the laboratory investigation the most promising mix design was evaluated in a full-scale field trial. Based on results from the experimental program, mixture designs are recommended for patching concrete pavement. This Thesis also highlights prominent differences between the recommended material and a portland cement material in commercial use.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 16, 2000
- Accession Number
- ADA384579
Entities
People
- Robert I. Bartlow Jr.
Organizations
- University of Oklahoma