Mechanical Properties of Polymer Cement-Fiber-Reinforced Concrete (PC-FRC): Comparison Based on Experimental Studies

peer reviewedThe paper presents results of the comparative tests on OC and PCC modified with a constant volume of steel, macro-, and micro-polypropylene fibers. The influence of these fibers on FRC and PC-FRC mechanical properties was evaluated by flexural and compressive strength tests, as well as bending strength and breaking load of a concrete pavement slab in accordance with EN 1339. Significant differences in results were observed between FRC and PC-FRC. Increase of flexural strength in PC-FRC beams made with steel and macro-polypropylene fibers in comparison with reference PCC samples has been shown. Breaking load of PC-FRC slabs was close to reference PCC ones. The enhancement of compressive strength on cubic samples of PC-FRC in relation to PCC was also observed. Further research with different polymer additives and fibers with other volume contents is considered