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
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.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Shrinkage Cracking in Fully Restrained Concrete Members
Author(s): R. Ian Gilbert
Publication: Structural Journal
Appears on pages(s): 141-149
Keywords: cracking (fracturing); crack width and spacing; creep; deformation; reinforced concrete; serviceability; shrinkage; slabs; structural members; Structural Research
Abstract:This paper considers the problem of cracking in fully restrained members subjected to direct tension caused by dry shrinkage. The mechanism of direct tension cracking is discussed, and some popular misconceptions concerning the behavior of restrained members are exposed. Paper presents a rational approach for the determination of the number and spacing of cracks and the average crack width in a member, which is fully restrained and subjected only to an axial restraining force caused by shrinkage. The approach is based on the principles of mechanics and is illustrated by worked examples. Predictions agree well with observed cracking in restrained members. The procedure is used to calculate the quantities of steel required for crack control in a number of practical situations. Finally, the results of the investigation are compared with the provisions for shrinkage and temperature reinforcement in the ACI Building Code (ACI 318-89) and AS 3600-1988.
Click here to become an online Journal subscriber