Download or read book Laboratory and Field Evaluations of External Sulfate Attack, Phase II written by John Christopher Clement and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This project, funded by the Texas Department of Transportation (TxDOT 4889) is a continuation of research begun in 2004 by Thano Drimalas. This report focuses on the testing recommended in the dissertation published in 2007, and further expands testing for an improved understanding of external sulfate attack. Performance of mortars under ASTM C 1012 testing encompasses a large portion of this study. Construction of additional outdoor sulfate exposure sites with varying concentrations to represent the conditions in ACI 318-08 was also initiated to study the long-term behavior of various concrete mixtures subjected to varying sulfate types and concentrations. Evaluation of previously examined and unexplored field sites was also performed under this second phase of the project.