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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 is mass concrete?
Question: Consolidation of concrete—required or not?
Question: Maximum temperature limits for hot-weather concreting
Question: How should the concrete be consolidated to obtain a complete filling of the forms and around the...
Question: Heat of hydration and the importance of controlling it
Question: Requirements for durable concrete
Question: How is concrete consolidated?
Question: How is concrete placed?
Question: Why is a plastic consistency usually desirable for placing concrete?
Question: Decorative concrete finishes
Question: What is the purpose of finishing and texturing concrete surfaces?
Question: Does additional curing improve the properties of concrete in other ways than in strength?
Question: What is the effect of freezing on concrete?
Question: How to Control Mass Concrete Temperature during Construction
Question: How do the requirements of placing affect the selection of proportions of aggregates and cementi...
Question: How can the effectiveness of curing be measured?
Question: Why is the workability of concrete important?
Question: How is workability measured and specified?
Question: Why is consolidation needed?
Question: Are any temperature limitations necessary in curing concrete in hot weather?
Question: The effect of pozzolans on water demand
Question: The ultimate objective in proportioning concrete
Question: How can segregation of the concrete between the mixer and its final point of placement be prevented?
Question: What is meant by properly cured concrete?
Question: What methods are commonly used to ensure sufficient moisture for curing concrete?
Question: What is the importance of curing on strength?
Question: Tolerances for concrete slabs supporting steel tanks
Question: How is the selection of mixture proportions affected by the materials to be used and the placing...
Question: What consideration should be given to water that may be lost from concrete between the time it l...
Question: What methods are used for protecting concrete against low temperatures?
Question: When heated enclosures are used to protect freshly placed concrete, what precautions are necessary?
Question: What is architectural concrete?
Question: Requirements for storing and handling aggregate
Question: Can the importance of proper consistency for placing be overemphasized?
Question: When can the finishing procedure be started?
Question: What is curing?
Question: Does over-vibration cause segregation and loss of air content?
Question: What is the importance of consolidation on strength?
Question: Tolerances for floors supporting operable partitions
Question: What test conditions affect the results of compressive strength tests of concrete?
Question: Can the heat liberated by the hydrating cement be relied on to give protection during cold weather?
Question: When is steam curing used?
Question: What range in slump is recommended for various types of construction?
Question: Is there any measure of the completeness or adequacy of curing?
Question: How does the temperature influence curing?
Question: When water and aggregate are heated, are any limitations necessary?
Question: Standard on detailing of concrete reinforcement
Question: What are the essential requirements of consistency?
Question: If the paste is ample in amount, but is too thin and watery to float the aggregate particles, wh...
Question: If the cementitious material paste is not sufficient in amount to float all of the aggregate par...
Question: Can you have too much paste or mortar?
Question: Placement of welded wire reinforcement (WWR) in a slab-on-ground
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