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
Q. Are any temperature limitations necessary in curing concrete in hot weather? A. Too high a concrete temperature during placement may be disadvantageous. Upper limits are generally specified both for the initial temperature of the concrete and the air temperatures in which concrete may be placed (ACI PRC-305-20). If the high temperatures cause a high rate of evaporation during water curing, cracking may occur due to evaporative cooling. Steps such as using a plastic cover sheet can reduce evaporation (ACI 308). References: SP-1(02); ACI PRC-305-20; ACI SPEC-305.1-14(20); ACI PRC-308-16 Topics in Concrete: Concrete Fundamentals; Hot Weather; Placing
Q. Are any temperature limitations necessary in curing concrete in hot weather?
A. Too high a concrete temperature during placement may be disadvantageous. Upper limits are generally specified both for the initial temperature of the concrete and the air temperatures in which concrete may be placed (ACI PRC-305-20). If the high temperatures cause a high rate of evaporation during water curing, cracking may occur due to evaporative cooling. Steps such as using a plastic cover sheet can reduce evaporation (ACI 308).
References: SP-1(02); ACI PRC-305-20; ACI SPEC-305.1-14(20); ACI PRC-308-16
Topics in Concrete: Concrete Fundamentals; Hot Weather; Placing
Search other resources on the ACI website for answers to technical questions