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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 15 Abstracts search results
Document:
SP166
Date:
December 1, 1996
Author(s):
Editors: Jack J. Fontana, Al O. Kaeding, and Paul D. Krauss
Publication:
Symposium Papers
Volume:
166
Abstract:
SP-166 This volume contains 11 symposium papers that were presented at the 10th and 11th symposia that were held in Minneapolis, MN and Tarpon Springs, FL in 1993 and 1994 respectively. There were a total of four sessions, the first titled "Polymer Concrete Overlays," the second "Recent Innovations in Polymer Concrete Technology", the third and fourth "Structural Properties of Polymer Concrete, Part I and II."
DOI:
10.14359/14206
SP166-13
Robert W. Gaul
Epoxy asphalt concrete is a polymer concrete with a 25-year history of application as a bridge deck surfacing. Since 1967, over 100 million pounds (50,000 tons) have been installed on 22 bridge decks totaling 6.5 million square feet. Most installations have exhibited excellent performance. The epoxy asphalt binder is a two-phase, thermoset chemical system in which the continuous phase is an acid cured epoxy and the discontinuous phase is a mixture of asphalts. The aggregates and gradation are similar to those used in asphalt concrete. The epoxy asphalt binder components are premixed before being combined with the heated aggregate in a conventional asphalt batch plant and applied through conventional asphalt paving equipment. Epoxy asphalt concrete has found use as a pavement for new orthotropic steel bridge decks and as an overlay for existing concrete bridge decks. Epoxy asphalt has also been applied as a chip-seal. On one project, the epoxy asphalt concrete was shop applied to steel plates that were later installed as a bridge deck. Several installations have not performed as expected. Successful installations require close temperature control of aggregates and careful attention to early compaction. This paper also provides a history of the commercial use of epoxy asphalt in the United States and Canada.
10.14359/1410
SP166-02
C. Vipulanandan, S. T. Mau, Syam K. Mantrala, and S. Wei
There is an interest in developing better performing (high strength and ductility) composite structural elements for construction and repair of onshore and offshore structures. In this study, composite structural elements that consist of filled columns and sandwich columns (two concentric circular steel tubes with polymer concrete sandwiched in between) were investigated as potential compression members. High-strength (480 Mpa) and low-strength (200 MPa) steel tubes conforming to ASTM A513 Type 5 and ASTM A500 Grade B, respectively, were used. The polymer concrete was polyester based with a compressive strength of 60 Mpa. Short composite columns, made of steel tubes of diameter-to-thickness ratios ranging from 16 to 170, were tested under monotonically increasing axial compression. It was observed that the composite columns had compressive strengths of 10 to 30 percent higher than that of the summation of the individual components. The ductility was much higher than that of the corresponding steel tubes. Relationships for predicting the initial modulus and peak load and corresponding strain of the sandwich column have been developed. A simple model was used to predict the load-strain history up to the peak load of the composite elements. The predictions agreed well with the test results.
10.14359/1477
SP166-09
Johan Silfwerbrand
Industrial floors of asphalt concrete or other bituminous products are deformed under sustained concentrated loads. They are also dark in color and difficult to clean. Consequently, they need to be renovated. The use of polymer-modified concrete (PMC) overlays is an interesting alternative. Reinforced and unreinforced overlays were subjected to static and rolling wheel loads. Reinforced PMC overlays on asphalt showed a high load-carrying capacity. Shrinkage tests were carried out on PMC prisms and on concrete and bituminous overlaid with PMC. A two-layer overlay with wear and leveling layers was less prone to shrinkage than an overlay solely consisting of awear layer.
10.14359/1402
SP166-05
K. S. Rebeiz and David W. Fowler
Recycled polyethylene terephthalate (PET) plastic wastes could be used in the production of unsaturated polyester resins. If specially formulated, these unsaturated polyester resins could, in turn, be mixed with inorganic aggregates to produce polymer concrete (PC). The results of an extensive research confirm that PC materials using resins based on recycled PET are comparable in strength to conventional PC materials. Resins based on recycled PET could also easily be altered to achieve a relatively wide range in the strength and flexibility properties of the PC, depending on the intended use of the material. PC using resins based on recycled PET may be utilized in the repair and overlay of portland cement concrete structures or in the production of various precast products, such as utility, transportation, and building components. The recycling of PET in PC would help decrease the cost of PC products, save energy, and alleviate an environmental problem posed by plastic wastes.
10.14359/1351
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