Abstract
In this study, the optimal weight percent ratio of resin and aggregate for a polymer-granular matter composite (PGMC) was determined in terms of its compressive strength. The PGMC was made with polyester for its resin, and white sand as its aggregate. The weight percent ratios of the PGMC varied as follows: 15:85, 20:80, and 25:75 for resin and aggregate respectively. The PGMC specimens underwent a compression test after a curing period of seven days at room temperature to determine its compression strength. Results indicate that the PGMC with weight percent ratio 25:75 had the highest average compression strength out of the three types at 76.4 MPa which is more than twice the strength of cement-based concrete. The 15:85 and 20:80 PGMCs yielded average compression strengths of 19.8 MPa and 60.8 MPa respectively. The most common fracture type for the PGMCs having weight percent ratios 20:80 and 25:75 was shear, occurring 83.3% of the time. On the other hand, the PGMC having weight percent ratio 15:85 displayed shear wedge fracture for five of the six trials.
Published Version
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