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: Maturity Approach Applied to Concrete by Means of Vicat Tests
Author(s): Alvaro García, Daniel Castro-Fresno, and Juan Antonio Polanco
Publication: Materials Journal
Appears on pages(s): 445-450
Keywords: activation energy; cement paste; early age properties; maturity method; setting time; temperature; Vicat test
Abstract:Better knowledge of the time of initial setting of concrete would aid contractors in planning the times of texturing and finishing a pavement. With this aim in mind, this paper presents a straightforward method for evaluating the temperature influence on setting time. This was accomplished using the Freiesleben-Hansen and Pedersen maturity function. To determine the apparent activation energy of the cement for use in this equation, a series of Vicat tests were carried out at different temperatures. To determine whether the activation energy found was correct, it was applied to the times to attain a specific penetration resistance of concrete made at different temperatures with various water-cement ratios (w/c) and three different types of cement. When equivalent ages of the setting times of concrete were calculated, linear relationships were obtained between w/c and setting time at the reference temperature. It was concluded that the apparent activation energy obtained by this method could be used to evaluate the temperature influence on setting times of concrete.
Click here to become an online Journal subscriber
Please enter this 5 digit unlock code on the web page.