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: Fundamental Studies on Inorganic Materials for Crack Injection
Author(s): T. Kato, H. Umehare, and H. Yoshida
Publication: Special Publication
Appears on pages(s): 707-726
Keywords: beams (supports); blast furnace slag; concretes; repairs; cracking (fracturing); epoxy resins; inorganic compounds; plasticizers; repairs; Materials Research
Abstract:In repairing cracked concrete structures, excellent workability and repairing effects have been obtained by using epoxy resins that are liquid organic polymer materials. However, in most situations, the repairing effects are not long-term and when these organic materials are used and exposed outside for a few years, they will deteriorate. Therefore, a material for crack injection, utilizing inorganic material such as ultra-fine slag cement, has been developed recently, and has shown good performance in terms of workability and durability. In this study, plain concrete beams and reinforced concrete beams repaired by using epoxy resin or ultra-fine slag cement are tested. The results show that the repairing effect deteriorates because of bleeding or drying shrinkage when inorganic material is used with a great deal of water. However, satisfactory properties are obtained using superplasticizer added to the inorganic repair material.
Click here to become an online Journal subscriber