Regarding chloride testing of existing concrete roads, both AASHTO and ASTM allow for an acid soluble chloride test or a water soluble chloride test. The acid test is alleged to give results that are 20% higher than the water test. Is either test more appropriate under particular conditions or...
Good day - Any experience with concrete placement at temperatures in the 20F to 40F range without use of heat? Some manufacturers admixtures are advertised to protect the concrete down to 20F. Ever the skeptics, we are seeking input from unbiased, experienced sources. Situation is lightweight...
