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
Feedback via Email Phone: 1.248.848.3800
Home > Tools > Frequently Asked Questions
Question: Simplified design for reinforced concrete buildings
Question: Two-way slabs design, ACI 318 vs. FEM
Question: Guidance on designing reinforced concrete retaining walls
Question: Mixture design and strength submittals
Question: Slabs-on-ground
Question: Curing Cylinders for Acceptance Testing
Question: Tolerances for floors supporting operable partitions
Question: Design of Slabs-on-ground
Question: Acceptable concrete cracking
Question: Shear Design Provisions in ACI 318-19
Question: Governing version of ACI 318
Question: Design Properties of Lightweight Concrete
Question: How is the required strength selected, measured, and obtained?
Question: ACI code for evaluating existing buildings prior to repair
Question: Reinforcement termination in wastewater concrete containment
Question: Standard on detailing of concrete reinforcement
Question: Knowledge of concrete properties
Question: What is the intention of the ACI 318 Building Code?
Question: Who selects the requirements for concrete for a project?
Question: If time is not available for preliminary tests, how can the desired strengths be ensured?
Question: Are load tests on completed structures ever employed?
Question: Minimum thickness of bearing walls
Question: Substantial structural damage
Question: Punching shear check for shear wall foundations
Question: Curing and curling of concrete slabs over vapor retarders
Question: The effect of joints on the durability of concrete structures
Question: Reinforced concrete vs. prestressed concrete
Question: How do the code requirements get to the contractor?
Question: What nominal maximum sizes of aggregate are recommended?
Question: Could a sulfate-resisting cement and slag cement be combined and used for concrete exposed to su...
Question: Increasing the load capacity of a slab-on-ground using an overlay
Question: What is calcium-aluminate cement?
Question: Load factors used in the 1963 building code
Question: Shear reinforcement for beam-column connections
Question: Painting the floor
Question: Determining the cause of a crack
Question: The intent of the 0.8 factor in Section 17.7.1.2.1 of ACI 318-19
Question: Tolerances for concrete slabs supporting steel tanks
Question: Chloride concentration in soil and exposure classes
Question: Minimum concrete cover for balconies with PT cables
Question: Embedded metals other than reinforcing steel
Search other resources on the ACI website for answers to technical questions
Please enter this 5 digit unlock code on the web page.