Tensile Bond Strength of Polymer Modified Mortar
Publication: Journal of Materials in Civil Engineering
Volume 11, Issue 1
Abstract
This paper describes an investigation of improving the bond strength of masonry mortars through the use of polymer additives, so that more efficient use of unreinforced masonry may be realized. A brief description of the mechanisms involved in polymer-modification of cementitious materials is provided as background for the experimental program. Results from a clay brick, type S cement-lime masonry mortar bond strength testing program investigating various admixtures are presented. The admixture treatments include numerous latexes, a defoaming agent, and a superplasticizer. Test specimens were cured under both moist and dry conditions. Very significant increases in bond strength were realized through the addition of several polymers, a plasticizer, and combinations of polymers and the plasticizer.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
“Building code requirements for masonry structures.” (1995). ACI 530-95/ASCE 5-95/TMS 402-95, American Concrete Institute, Detroit; American Society of Civil Engineers, New York; and The Masonry Society, Boulder, Colo.
2.
Cebeci, O. Z., Al-Noury, S. I., and Mirza, W. H. ( 1989). “Strength and drying shrinkage of masonry mortars in various temperature humidity environments.” Cement and Concrete Res. 19, 53–62.
3.
Dodson, V. ( 1990). Concrete admixtures, Van Nostrand Reinhold, New York.
4.
Isenberg, J. E., and Vanderhoff, J. W. ( 1974). “Hypothesis for reinforcement of portland cement by polymer latexes.” J. Am. Ceramic Soc., 57(6), 242–245.
5.
“Latex Admixtures for Portland Cement Concrete and Mortar.” (1986). Tech. Rep. REMR-CS-3, U.S. Army Corps of Engineers: Repair, Evaluation, Maintenance, and Rehabilitation Program, U.S. Army Engineer Waterways Experiment Station, Vicksburg, Miss.
6.
“Latex modified concretes and mortars.” (1992). National Cooperative Highway Research Program Synthesis of Highway Practice No. 179, National Cooperative Highway Research Program, Washington, D.C.
7.
Lavelle, J. A. ( 1986). “Acrylic and latex modified portland cement.” Rohm and Haas Research Laboratories, Spring House, Pa.
8.
Monk, C. B. ( 1962). “Testing high-bond masonry assemblages.” Symp. on Masonry Testing, ASTM STP 320, ASTM, Philadelphia, Pa., 31–66.
9.
Pearson, J. C. ( 1943). “Measurement of bond between brick and mortar.” ASTM Proc., 42, 857–868.
10.
Product literature. (1987). Dow Chemical USA, Midland, Mich.
11.
Sarabond. (1988). Architecture and Engineering Performance Information Center (AEPIC), College Park, Md.
12.
Zdanowski, R. E., and Brown, G. L. ( 1958). “Film forming characteristics of emulsion polymers.” Proc., 44th Mid-Year Meeting of the Chemical Specialties Manufacturers Assn. Inc., Cincinnati.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 11 • Issue 1 • February 1999
Pages: 1 - 5
History
Published online: Feb 1, 1999
Published in print: Feb 1999
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.