Technical Questions

Question: What does ACI recommend regarding water-cement (w/c) ratios or admixtures to improve workability...

Question: Using cube tests in lieu of cylinder tests

Question: Size of test cylinder

Question: Consistency, plastic consistency, and workability

Question: What fibers are used in concrete?

Question: Precautions to resist acid attack

Question: Are polymer concrete and polymer-modified concrete used in repairs?

Question: The effect of entrained air on the workability of concrete

Question: The effect of aggregate strength on concrete strength

Question: The effect of aggregate characteristics on concrete shrinkage and permeability

Question: Requirements for a successful concrete structure

Question: Standard specifications for cements

Question: What methods of capping are recommended for compression specimens?

Question: What is calcium-aluminate cement?

Question: What is the minimum fiber dosage? Is it possible to use less than the minimum dosage?

Question: How do fibers affect the workability of concrete? Do fibers require additional water for placement?

Question: What water-cementitious material ratio should be used for a particular job when strength require...