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.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
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: Analysis of the abstraction of water from freshly mixed jointing mortars in masonry construction
Author(s): C. Ince, M. Carter, M. Wilson, A. El-Turki, R. Ball, G. Allen, N. Collier
Appears on pages(s): 985-992
Keywords: Mortar, Transport properties, Kinetics, Desorptivity
Abstract:Sharp front theory is used to derive an equation describing the time taken for a wet mortar joint to be dewatered by an absorbent substrate. The equation shows that the time taken to dewater a mortar joint is directly proportional to its thickness and inversely proportional to the transfer sorptivity, itself a function of the sorptivity of the substrate and the desorptivity of the wet mix. Experimental data are presented which validate this equation and the results show that the time to dewater a mortar depends on both the hydraulicity and the initial water content of the mix. For the practically important case of jointing mortars applied in 10 mm layers to a typical facing brick we show that dewatering times range from 20 s to 1 min for Portland cement and NHL 2 mortars, respectively, and that 40–60% of the original mix water is lost in the process.
International union of laboratories and experts in construction materials, systems and structures, International Partner Access.
View Resource »