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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:
SP64-15
Date:
July 1, 1980
Author(s):
Robert W. Cusick and Clyde E. Kesler
Publication:
Symposium Papers
Volume:
64
Abstract:
The object of this research was to determine if the use of shrinkage-compensating concrete in bridge decks minimizes cracking and the subsequent spalling caused by rusting of the steel reinforcing. The simulated bridge deck specimens made with shrinkage-compensating cements did not crack, or had only a few cracks when compared to the specimens made with Type 1 cement. The rate of corrosion of the reinforcing was about the same for both of the found to be about 20 percent greater than that of the Type 1 concrete, but the chloride ion concentration was approximately the same at a given depth. The elimination of cracks by using shrinkage-compensating cement concrete will prevent the rapid corrosion of the reinforcement and subsequent spalling in a bridge that occurs at a crack, and extend the life of the deck before repairs are needed.
DOI:
10.14359/6682
SP64-16
Yukikazu Tsuji
A method of estimating distribution of expansive strains produced in members of rectangular cross section with reinforcing bars arranged in any manner based on measured values of standard uniaxially restrained specimens is proposed. This method adopts the hypothesis that work performed by expansive cement concrete on restraining reinforcement is a constant value regardless of quantity and method of arrangement of reinforcement, and is a convenient met which does not include constants such as modulus of elasticity and creep coefficient of expansive cement concrete. Errors between estimated and measured values are approximately 20% at maximum, and the accuracy may be said to be adequate for practical purposes.
10.14359/6683
SP64
Editor: William P. Liljestrom
SP-64 This symposium of 16 papers covers international developments, field service reports on existing installations and research. Reports on applications of shrinkage-compensating concrete in hydraulic structures, cold storage warehouse, slabs, bridge decks, oil well cementing, post-tensioned structures.
10.14359/14116
SP64-01
Bryant Mather
The future of expansive cement depends on a realization by cement users that there are circumstances where the best cement to use is one that expands. If there is an awareness that it is the optimum product for certain uses then it will be made available and its future will be assured.
10.14359/6668
SP64-02
Joe V. Williams, Jr.
A brief description of the scope of shrinkage-compensating usage in various types of hydraulic structures is given. Effects of shrinkage-compensating concrete on reduction of drying shrinkage stresses, cracking, and water stops as potential points of leakage are discussed. Design considerations by some engineering firms with respect to shrinkage reduction, particularly in circular tanks, are outlined. Construction advantages, such as higher slumps, ease of placement, reduced honeycombing ,and larger placement areas are covered. Durability factors such as freezing and thawing, deicer scaling, abrasion, and sulfate exposure are compared with portland cement concretes.
10.14359/6669
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