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
Sheik Rashid Tower, 7th Floor
Dubai World Trade Center
Phone: +971 4 3097066
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: How Rheology Governs Dynamic Segregation of Self- Consolidating Concrete
Author(s): Aida Margarita Ley-Hernández and Dimitri Feys
Publication: Materials Journal
Appears on pages(s): 131-140
Keywords: dynamic segregation; mixture design; rheology; self-consolidating concrete; workability
Abstract:Self-consolidating concrete (SCC) is designed to fill any type of formwork and spread into place by its own weight in the absence of mechanical vibration. Due to the high flowability of SCC, it is more susceptible to suffer stability problems compared to conventional vibrated concrete. Dynamic segregation refers to segregation in concrete while being cast into a formwork or due to an impact or drop. In this paper, the main purpose is to understand how rheology governs dynamic segregation of SCC, explaining the effect of different mixture design parameters, by using the tilting box (T-box). Changes in admixture contents, paste volume, aggregate distribution, water-cementitious materials ratio (w/cm), and the width of the T-box have been investigated. The results show that dynamic segregation of SCC is dependent on the paste volume, the grain size distribution, fly ash content, and the width of the formwork, in addition to the rheological properties of the concrete.
Click here to become an online Journal subscriber