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An investigation of a high-strength, fast setting mixture of methyl methacrylate and dry aggregate was conducted. The resulting polymer-concrete (PC) was very strong, durable, and bonded excellently to concrete. Tests were conducted to determine the variables affecting the polymerization time and strength of polymer-concrete. Field tests were conducted to interstate highways and a major airport taxiway which demonstrated the feasibility of making rapid polymer-concrete repairs at a reasonable cost. Laboratory tests of a 3-foot by 6-foot area repaired by PC and an individual PC slab under repeated loadings of simulated truck and aircraft traffic demonstrated the excellent strength and durability of the material. A cost analysis found the cost of monomer to be approximately $10/cubic foot for most repairs. (Author).
An investigation was made to determine the feasibility of using polymer-concrete (PC) for rapid repair of airfield pavements. The polymer-concrete studied was a mixture of dry aggregate and a methyl methacrylate monomer. Tests were conducted to isolate the variables that affect the strength and polymerization time of PC. Laboratory and field tests were conducted to test the strength, durability, and feasibility of polymer-concrete repairs. The major variables affecting the polymerization time of PC were found to be temperature and chemical composition. Monomer formulations were developed that permitted polymer-concrete to be polymerized in less than one hour at a temperature range of 0 to 100 F. An investigation into the variables that affect strength resulted in several findings. The tests showed that dry aggregate (less than 1% moisture) is very important for strength. The strength of PC was found to increase with stronger aggregate and smaller pore volume. The temperature of the polymer-concrete was found to affect the strength to a great extent. The higher the temperature the greater the reduction of strength. (Author).
The subject of polymer concrete (PC) has generated a lot of interest among researchers during the past decade. This is due to the many advantages that polymer concrete pavement offers compared to regular portland cement concrete. The advantages of polymer concrete, when compared to portland cement concrete include, quick curing and setting, reduced moisture sensitivity and permeability and improved mechanical properties resulting in reduced pavement thickness to support the same load. These advantages will lead to attractive life cycle cost benefits. Material properties and mix designs for PC with epoxy, methylmethacrylate (MMA) and Polyester as the binder material have been investigated and presented in part I of this report. Part II contains pavement thickness design charts, developed for various aircraft, quality control methods, construction procedures and cost analysis. It has been shown in this study that increased material cost of PC can be offset by the reduced thickness of the pavement. In order to develop life cycle cost information, it is necessary to obtain field performance data of PC pavement, especially in the composite design mode. Keywords: Compressive stress, Modulus of elasticity. (kr).