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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
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Home > Tools > Frequently Asked Questions
Question: What nominal maximum sizes of aggregate are recommended?
Question: Acceptable concrete cracking
Question: What is the importance of curing on strength?
Question: The effect of joints on the durability of concrete structures
Question: What is curing?
Question: Increasing the load capacity of a slab-on-ground using an overlay
Question: Improving the abrasion resistance of concrete
Question: How can the effectiveness of curing be measured?
Question: Curling, shrinkage, and w/cm
Question: Placement of welded wire reinforcement (WWR) in a slab-on-ground
Question: How is the required strength selected, measured, and obtained?
Question: Air tests for non-air-entrained concrete
Question: What methods are commonly used to ensure sufficient moisture for curing concrete?
Question: What is meant by properly cured concrete?
Question: Is there any measure of the completeness or adequacy of curing?
Question: When is steam curing used?
Question: How is the shrinkage of concrete determined?
Question: What is the purpose of finishing and texturing concrete surfaces?
Question: How does the temperature influence curing?
Question: Popouts or popoffs?
Question: The importance of proper drainage
Question: When can the finishing procedure be started?
Question: When does the slump test provide a useful indication of workability?
Question: What test is available to evaluate the behavior of no-slump concrete as it is vibrated?
Question: Vapor barriers
Question: Curing and curling of concrete slabs over vapor retarders
Search other resources on the ACI website for answers to technical questions