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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 18 Abstracts search results
Document:
SP89-17
Date:
December 1, 1985
Author(s):
Michael Hsu and David W. Fowler
Publication:
Symposium Papers
Volume:
89
Abstract:
Polymer concrete (PC) 3-in. x V-in. (75-mm x 300-mm) cylinders were loaded in uniaxial compression stress-strength ratios of 0.3, 0.4 and 0.5 for one year to investigate creep behavior. The PC was made with methyl methacrylate (MMA). The results indicate that the creep in PC is approximately one to two times higher than that of portland cement concrete. However, the specific. creep for both is about the same. The creep in-creases with an increase in the stress-strength ratio; but no linear relationship exists between the two variables. More than 20 percent of the final creep took place within the first day, and nearly 50 percent during the first five days. The static strength of PC was not significantly affected by the long-term creep loading. The high creep strain and the low sustained strength of PC could be the two major obstacles in its structural application. Plain PC 6 x 6 x 36-in. (150-mm x 150.-mm x 900-mm) beams made with MMA were tested to evaluate the flexural fatigue strength of PC subjected to different stress levels and stress ranges. The flexural behavior during the test period was observed. Beams were tested as simply supported beams with a 30-in. (750-mm) span and symmetrically loaded at third points. Beams were cyclically loaded at a constant rate of five cycles per second up to two million cycles or failure of the beam. Similar to port-land cement concrete, the applied stress is the most important factor influencing the fatigue life of PC. As the applied stress increases, the fatigue life decreases. The effect of the range between the maximum and the minimum applied stress was also significant; the wider the stress range, the shorter the fatigue life. Although the PC beam failed in a sudden, brittle mode, an increase in deflection was always noticed as the fatigue life was approached. The test results indicate that PC beams are superior to portland cement concrete beams in fatigue strength.
DOI:
10.14359/6256
SP89
Editors: James T. Dikeou and David W. Fowler
SP-89 A collection of 17 papers dealing exclusively with the various effects of polymers in concrete, this book provides an extensive source of reference material. Presents advances in research, development, and uses of polymers. Case studies cover the effect of moisture on the physical and durability properties of methyl methacrylate polymer concrete; machine application of polymer concrete for highway repairs, commercial applications of epoxies in construction, and polymer concrete for bridge rehabilitation.
10.14359/14046
SP89-01
Danny Marsh, W. J. Simonsen, and D. W. Fowler
Polymer concrete has been used for years to repair portland cement concrete. A monomer system is mixed with well-graded aggregate and placed in the repair area. After the monomer cures, a strong durable material is produced which bonds well to portland cement concrete. Special mixing and placing equipment was developed for a large pavement repair job in Houston. Longi-tudinal cracks, longitudinal lane-shoulder joint separations, spalls, punch-outs, and other types of damage were repaired.
10.14359/6240
SP89-02
Albert 0. Kaeding
Processes are described for centrifugally applying polymer concrete (PC) liner to straight pipe, for casting the PC liner in pipe fittings, and for closure of field joints. Physical properties of the PC liner materials were measured. Compressive strengths of up to 165.8 MPa (24,045 psi) and splitting tensile strengths of 23.5 MPa (3408 psi) were measured at ambient temperature. Compressive strengths of 24 MPa (3490 psi) and splitting tensile strengths of 2.5 MPa (366 psi) were measured at about 150°C (302OF). Cost of piping a geothermal plant with PC and PC-lined steel pipe is calculated to be $1.21 million, which compares favorably with a similar plant piped with alloy steel piping at a cost of $1.33 million. Life-cycle cost analysis indicates that the cost of PC-lined steel pipe would be 83% of that of carbon steel pipe over a 20 year plant operating life.
10.14359/6241
SP89-03
W. Glenn Smoak
Polymer impregnation and polymer concrete were used to repair the concrete roadway over the Bureau of Reclamation's Grand Coulee Dam. The equipment, materials, and processes used on this project are discussed in depth. The report includes data on the costs of the project.
10.14359/6242
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