Technical Questions

Question: Could a sulfate-resisting cement and slag cement be combined and used for concrete exposed to su...

Question: Definition of setting time

Question: How should the aggregates and other ingredients be measured to obtain uniformity in proportions?

Question: Hardening of hydraulic cement

Question: Factors affecting time of setting

Question: Factors governing the strength of concrete

Question: Effects of cement fineness on cement properties

Question: The cause of false set

Question: What is slag cement or ground granulated blast-furnace slag (GGBFS)

Question: What does a pozzolan do in the concrete?

Question: How is the water-cementitious material ratio (w/cm) expressed?

Question: Will concrete continue to increase in strength if there is no moisture present?

Question: What is autogenous shrinkage?

Question: How to Control Mass Concrete Temperature during Construction

Question: Definition of concrete, hydraulic cement, mortar, and grout

Question: Resistance to cycles of freezing and thawing

Question: Factors affecting permeability

Question: How can it be determined that an admixture will serve its intended purpose?

Question: Would adding more cement serve the purpose of admixtures?

Question: How is workability measured and specified?

Question: Precautions against sulfate attack

Question: What consideration should be given to water that may be lost from concrete between the time it l...

Question: The effect of water-cementitious ratio on permeability and shrinkage

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

Question: What are the essential requirements of consistency?

Question: Why is consolidation needed?

Question: How should the concrete be consolidated to obtain a complete filling of the forms and around the...

Question: What is curing?

Question: How much water goes into combination with the cement during the hardening of concrete?

Question: Are any temperature limitations necessary in curing concrete in hot weather?

Question: Curling, shrinkage, and w/cm

Question: Consolidation of concrete—required or not?

Question: Embedded metals other than reinforcing steel

Question: Reinforcement termination in wastewater concrete containment

Question: Chloride concentration in soil and exposure classes

Question: What is the difference between corrected and uncorrected weight in a concrete mix design?

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

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

Question: Does incorporating fiber as an alternative to traditional reinforcement enhance the environmenta...