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: Effect of mix design on restrained shrinkage of self-consolidating concrete
Author(s): Soo-Duck Hwang, Kamal Khayat, H. Khayat
Appears on pages(s): 367-380
Keywords: Binder type, Cracking potential, Drying shrinkage, Mix design, Restrained shrinkage, Self-consolidating concrete, Tensile creep
Abstract:This paper presents test results carried out to evaluate the potential due to restrained shrinkage cracking of self-consolidating concrete (SCC). The mix design approach and binder type of the SCC are shown to have considerable influence on cracking potential. Mixtures made with 0.42 w/cm and incorporating viscosity-enhancing admixture (VEA) to ensure proper stability exhibited approximately 25–35% longer time before cracking than SCC prepared with 0.35 w/cm and no VEA. The former concrete design had lower elastic modulus at 3 days when the drying shrinkage was initiated and hence greater stress relaxation. This was reflected in greater tensile creep coefficient which reduces tensile stress due to restrained shrinkage. The SCC made with 0.42 w/cm exhibited slightly higher drying shrinkage after 56 days of drying compared to similar concrete prepared with 0.35 w/cm. In general, the tested SCC mixtures had higher cracking potential than the reference high-performance and conventional concretes. This may be due to the higher paste volume of SCC that resulted in greater drying shrinkage. Mixtures with 670 mm slump flow consistency and 180 mm slump values of the same mix design had similar elapsed times before cracking of 6.3 and 5.6 days, respectively.
International union of laboratories and experts in construction materials, systems and structures, International Partner Access.
View Resource »