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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 12 Abstracts search results
Document:
SP169
Date:
May 1, 1997
Author(s):
Editor: Stella L. Marusin
Publication:
Symposium Papers
Volume:
169
Abstract:
SP-169 Two sessions on "Performance of Overlays of Polymer Concretes" sponsored by Committee 548 on Polymers in Concrete were held at the Spring Convention in Denver, Colorado in March 1995. Five papers were presented at the first session titled: "Performance of Polymer Concrete Overlays Part I: Over 10 Years", and six papers were presented at the second session titled: "Performance of Polymer Concrete Overlays Part II: Less than 10 Years Old". All eleven papers published in this volume are case studies. Since different types of overlays-including thin overlays, polymer, epoxy and sulfur concrete are successfully in service on bridge decks, highways and garages, these authors feel that it is important to share their knowledge with the readers of this publication.
DOI:
10.14359/14209
SP169-10
James E. Maass
The I-80 Donner Pass job was a watershed in the history of polyester-styrene polymer concrete highway overlay; the culmination of approximately ten year’s research and test jobs by Cal-Trans. Completed in 1986, the lo-lane-mile job was highly successful. This paper reviews criteria used to select the overlay chemistry, procedures, equipment and suppliers used in the job; as well as the 1988 review by the senior materials and research engineer. The paper includes nine-year wear data by Cal-Trans and a look forward by individuals currently involved in on-going overlay projects being specified by Cal-Trans. Based on the success of this l-80 job, Cal-Trans continues to specify polyester-styrene polymer concrete for bridge decks and highway overlays.
10.14359/5937
SP169-02
Donald F. Meinheit and Wilfried H. Riesterer
Methyl-methacrylate (MMA) based polymer concretes have been used for thin overlays, patching repairs, and bearing pad applications since the late 1970’s. These polymer concretes are moisture and wear resistive and have been used to protect embedded reinforcing steel from corrosion attack. This paper reports on the condition of a post-tensioned parking garage that was repaired in 1983 using a thin mma polymer concrete overlay. An earlier paper reported on the garage condition, repair methods and materials (1). Comments will be made on the overlay wear, cracking, bonding to the substrate, continued corrosion of embedded reinforcing steel, and surface delaminations after 13 years of service. Comparisons of conditions in 1981 and 1995 are also made. Comments on the success of the application with respect to structural integrity and material durability are made at the end of the paper.
10.14359/5929
SP169-03
Michael Sprinkel
The performance of polymer concrete bridge deck overlays ranging in age from 6 to 19 years is presented. The performance is based on tests for tensile bond strength, permeability to chloride ion, thickness and skid number. The physical and mechanical properties of the concretes used, the types of uses, the application methods, and the economics, are also described. It is shown that multiple-layer epoxy, multiple-layer epoxy urethane, and premixed polyester styrene polymer concrete overlays can provide skid resistance and protection against intrusion by chloride ions for 20 years or more and are an economical technique for extending the life of concrete decks reinforced with black steel, particularly when overlays must be constructed during off-peak traffic periods to minimize inconvenience to motorists. Also, multiple-layer polyester overlays have a life of ten years.
10.14359/5930
SP169-01
Shree Nabar and Peter Mendis
Repair and maintenance of aging bridge decks and parking decks has become increasingly important due to concrete and steel deterioration from exposure to deicing salts, acid rain, and other hostile elements. Rapid curing thin polymer concrete overlay offers a cost-effective option in protecting and extending the service life of the deck. The paper discusses the performance, physical properties and application techniques using a flexible epoxy polymer overlay. The low modulus epoxy binder is designed to achieve a balance between toughness and flexibility. With the use of gap graded aggregates, the flexible epoxy binder system provides low permeability, enhanced skid resistance while accommodating thermal and mechanical stresses. The outstanding performance and service life of flexible epoxy overlays has been documented in the SHRP study in 1991. The importance of proper surface preparation and quality control during application is critical to the success and durability of the overlay.
10.14359/5928
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