Email Address is required Invalid Email Address
In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Learn More
Become an ACI Member
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.
Staff Directory
ACI World Headquarters 38800 Country Club Dr. Farmington Hills, MI 48331-3439 USA Phone: 1.248.848.3800 Fax: 1.248.848.3701
ACI Middle East Regional Office Second Floor, Office #207 The Offices 2 Building, One Central Dubai World Trade Center Complex Dubai, UAE Phone: +971.4.516.3208 & 3209
ACI Resource Center Southern California Midwest Mid Atlantic
Feedback via Email Phone: 1.248.848.3800
ACI Global Home Middle East Region Portal Western Europe Region Portal
Home > Tools > Frequently Asked Questions
Question: What is mass concrete?
Question: What steps are taken in the repair of concrete structures?
Question: Consolidation of concrete—required or not?
Question: Heat of hydration and the importance of controlling it
Question: The effect of joints on the durability of concrete structures
Question: Do we always need to repair cracked concrete?
Question: Requirements for durable concrete
Question: Popouts or popoffs?
Question: Improving the abrasion resistance of concrete
Question: What are shrinkage-compensating expansive cement and concrete?
Question: Maximum temperature limits for hot-weather concreting
Question: Would adding more cement serve the purpose of admixtures?
Question: Acceptable concrete cracking
Question: Benefits of using slag cement
Question: Resistance to cycles of freezing and thawing
Question: The effect of aggregate on concrete durability
Question: The relationship between porosity and permeability of concrete
Question: Air tests for non-air-entrained concrete
Question: How is the shrinkage of concrete determined?
Question: Could a sulfate-resisting cement and slag cement be combined and used for concrete exposed to su...
Question: Protecting concrete from cycles of freezing and thawing
Question: When should saw cuts be made on a concrete slab?
Question: Other important properties of concrete
Question: Knowledge of concrete properties
Question: How can durable aggregates be ensured?
Question: Epoxy-coated reinforcement and cover depth against ground
Question: Evaluating the properties of hardened concrete
Question: The effect of water-reducing admixtures on drying shrinkage
Question: How is the selection of mixture proportions affected by the materials to be used and the placing...
Question: Joint deterioration mechanism and prevention
Question: Factors affecting permeability
Question: The importance of proper drainage
Question: How is the abrasion resistance of concrete determined?
Question: The effect of water-cementitious ratio on permeability and shrinkage
Question: Is chiseled concrete a common technique for facades
Question: What is the difference between corrected and uncorrected weight in a concrete mix design?
Question: What are blended cements?
Question: Specialty admixtures
Question: Commonly used accelerating admixture
Question: Why is combined aggregate grading used?
Question: Precautions against sulfate attack
Question: What is D-cracking?
Question: Protecting against excessive expansion due to alkali-aggregate reaction (AAR)
Question: Can you use any source of water as mixing water?
Question: Precautions to resist acid attack
Question: How is the resistance to alkali-aggregate reaction (AAR) determined?
Question: Chloride concentration in soil and exposure classes
Question: How is the resistance to sulfate determined?
Search other resources on the ACI website for answers to technical questions