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Frequently Asked Questions
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Search other resources on the ACI website for answers to technical questions
Question: Definition of concrete, hydraulic cement, mortar, and grout
Question: Material Requirements for Mass Concrete
Question: What is an admixture?
Question: How can it be determined that an admixture will serve its intended purpose?
Question: Curling, shrinkage, and w/cm
Question: Heat of hydration and the importance of controlling it
Question: Factors affecting permeability
Question: Mixture design and strength submittals
Question: Using cube tests in lieu of cylinder tests
Question: Consolidation of concrete—required or not?
Question: How to Control Mass Concrete Temperature during Construction
Question: Joint deterioration mechanism and prevention
Question: Chloride concentration in soil and exposure classes
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?