Technical Questions

ACI Committees, Membership, and Staff have answered common questions on a variety of concrete related topics.





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

Question: Benefits of using slag cement

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

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

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

Question: Definition of portland cement

Question: The earliest use of portland cement

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

Question: Heat of hydration and the importance of controlling it

Question: Standard specifications for cements

Question: Epoxy-coated reinforcement

Question: Pozzolans in mass concrete

Question: What are blended cements?

Question: Notable changes in modern portland cement properties

Question: What does a pozzolan do in the concrete?

Question: The making of portland cement

Question: Using and handling pozzolans

Question: Unsoundness in portland cement

Question: What is calcium-aluminate cement?

Question: Characteristics of cement that affect compressive strength

Question: Materials used to produce portland cement

Question: The purpose of calcium sulfate (gypsum)

Question: Important requirements of a concrete aggregate

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

Question: What is silica fume?

Question: How is the resistance to sulfate determined?

Question: Factors affecting permeability

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


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