Technical Questions

Question: Curing and curling of concrete slabs over vapor retarders

Question: Increasing the load capacity of a slab-on-ground using an overlay

Question: Consolidation of concrete—required or not?

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

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

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

Question: How to Control Mass Concrete Temperature during Construction

Question: Mixture design and strength submittals

Question: Standard specifications for cements

Question: Characteristics of cement that affect compressive strength

Question: What is the difference between synthetic microfibers and macrofibers?

Question: What is an expansive cement and what are the different types of expansive cement?

Question: What are blended cements?

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

Question: Why is Type IV cement rarely produced and Type V cement rarely used?

Question: Form release agents

Question: What is minimum reinforcement for crack-width control and how is design accomplished using fiber?

Question: Maximum temperature limits for hot-weather concreting

Question: Notable changes in modern portland cement properties

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

Question: Popouts or popoffs?

Question: Do we always need to repair cracked concrete?

Question: Effects of cement fineness on cement properties

Question: Will fiber-reinforced concrete have a hairy appearance?

Question: Commonly used accelerating admixture

Question: Precautions against sulfate attack

Question: Why are fibers used in concrete?

Question: Do different admixtures of a given type always perform the same?

Question: Material Requirements for Mass Concrete

Question: Are all fibers used in concrete the same?

Question: Factors affecting time of setting

Question: Temperature limits for mass concrete