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: Shear Design Provisions in ACI 318-19
Question: Governing version of ACI 318
Question: ACI code for evaluating existing buildings prior to repair
Question: What is the intention of the ACI 318 Building Code?
Question: Are stiffness modifiers mandatory in the ACI 318 Code?
Question: Two-way slabs design, ACI 318 vs. FEM
Question: The intent of the 0.8 factor in Section 17.7.1.2.1 of ACI 318-19
Question: Low-strength cylinder test results
Question: Slabs-on-ground
Question: Load factors used in the 1963 building code
Question: Epoxy-coated reinforcement and cover depth against ground
Question: Standards for 7-day and 28-day strength test results
Question: Legacy building codes
Question: Simplified design for reinforced concrete buildings
Question: Guidance on designing reinforced concrete retaining walls
Question: Definition of shallow and deep foundations
Question: Using cube tests in lieu of cylinder tests
Question: Size of test cylinder
Question: How is the required strength selected, measured, and obtained?
Question: Precautions against sulfate attack
Question: What nominal maximum sizes of aggregate are recommended?
Question: Minimum thickness of bearing walls
Question: Curing Cylinders for Acceptance Testing
Question: What is reinforced concrete?
Question: Shear reinforcement for beam-column connections
Question: Chloride concentration in soil and exposure classes
Question: Minimum concrete cover for balconies with PT cables
Question: Using core strength to calculate compressive strength of an existing structure
Question: Knowledge of concrete properties
Question: Requirements for a successful concrete structure
Question: The importance of reinforcement in concrete
Question: Reinforced concrete vs. prestressed concrete
Question: The importance of concrete cover
Question: Epoxy-coated reinforcement
Question: Who selects the requirements for concrete for a project?
Question: Could a sulfate-resisting cement and slag cement be combined and used for concrete exposed to su...
Question: Punching shear check for shear wall foundations
Question: Determining the cause of a crack
Question: Design of Slabs-on-ground
Question: What procedure should be followed for standard curing of specimens for strength tests?
Question: Are load tests on completed structures ever employed?
Question: Consolidation of concrete—required or not?
Question: Mixture design and strength submittals
Question: Acceptable concrete cracking
Question: Requirements for durable concrete
Question: Evaluating the properties of hardened concrete
Question: Strength of concrete
Question: The most important single factor affecting compressive strength
Question: Reinforcement termination in wastewater concrete containment
Question: Design Properties of Lightweight Concrete
Search other resources on the ACI website for answers to technical questions