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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.
Showing 1-5 of 17 Abstracts search results
Document:
SP104-05
Date:
October 1, 1987
Author(s):
C. Vipulanandan and N. Dharmarajan
Publication:
Symposium Papers
Volume:
104
Abstract:
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.
DOI:
10.14359/10012
SP104-13
John M. Scanlon
Most concrete evaluated in the laboratory is prepared and handled under tightly controlled environmental conditions (moist cured at 73.4 ñ 3 deg F) from the time of molding until the moment of test. However, very little concrete is actually mixed, transpo
10.14359/1732
SP104-14
John H. Lawder and Robert F. Adams
The organization and procedures used in the quality production of about 8 million cubic yards of concrete of all kinds for the California Water Project are described. These included design aspects, specifications, the concrete laboratory, and construction
10.14359/1733
SP104
Editor: Grant T. Halvorsen
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.
10.14359/14138
SP104-12
Luc R. Taerwe
Usually it is assumed that consecutive concrete strength values are independent. However, the analysis of five extensive concrete strength records, with a number of observations ranging between 534 and 1786, reveals that significant serial correlation is
10.14359/1618
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