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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 17 Abstracts search results
Document:
SP104
Date:
October 1, 1987
Author(s):
Editor: Grant T. Halvorsen
Publication:
Symposium Papers
Volume:
104
Abstract:
SP-104 This ACI volume provides engineers, contractors, and architects insight into the problems and solutions associated with high quality concrete construction. The infrastructure can not be built too well, and what little extra it may take to build in that extra assured quality is an investment of high return. Quality is often talked about--but follow through is often lacking. Concrete and Concrete Construction, a collection of 16 papers, explores in detail the various steps involved in assuring the best possible results. Topics covered include: improving concrete quality with silica fume, design for strength variability, how to obtain quality concrete, under water concreting, curing of concrete, effects of construction practice on concrete-steel bond, and consolidation of concrete. In addition, subjects such as controlling concrete during hot and cold weather, and code requirements for crack control are covered extensively.
DOI:
10.14359/14138
SP104-05
C. Vipulanandan and N. Dharmarajan
The influence of a silane coupling agent on the mechanical properties of polyester polymer concrete with and without glass fiber reinforcement has been investigated. The silane was incorporated into the polymer concrete systems either by pretreating the aggregates and fibers or by directly adding it into the resin (integral addition method). The flexural properties of polyester polymer and polymer concrete were studied in four-point bending (third point loading) at room temperature. The results indicate that the silane treated aggregate systems increase in flexural strength by more than 50 percent when compared to the untreated systems. The increase in strength is also dependent on the amount of polymer in the polymer concrete. At equivalent loading levels of silane, superior flexural properties were obtained with the pretreatment method than with the integral addition method. The improvement in strength due to the silane coupling agent is explained in terms of chemical interaction between the polymeric matrix and filler. Addition of glass fibers enhances the strength, stiffness and toughness of polyester polymer concrete, and silane treatment of glass fibers helps to further enhance these properties. Behavior models are proposed to predict the enhanced flexural strength of polyester polymer concrete due to pretreatment, integral addition and fiber reinforcement.
10.14359/10012
SP104-16
Richard F. Stratfull
The results of approximately 30 years of pioneering efforts in the design, installation, and maintenance of cathodic protection to reinforced concrete bridge structures are reported. Some of the more important elements in testing and reasons for the perfo
10.14359/1669
SP104-01
Erbest K. Schrader
ACI and ASTM standards require an overdesign factor to be added to the design strength to account for variability in the mix. A high variability necessitates an average strength considerably higher than the design strength. There are two key problems wit
10.14359/1694
SP104-03
Bertold E. Weinberg, Lewis H. Tuthill
An owner can do much to achieve quality concrete construction. He has the most at stake in a project and must live with the results of others' efforts, but he knows the least about how to achieve the desired results. His roles and responsibilities are di
10.14359/1696
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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.
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