Mechanical performance of cement concrete with use of combined fibers of basalt and bamboo

Abstract

This investigation utilized the combined blend of basalt and bamboo fibers as an additive in concrete, with the fibers being added based on the weight of the cement. The performances of concrete on the aforementioned fibers were compared based on mechanical parameters. The specimens were matured for 7, 28, and 90 days. It was observed that the inclusion of BFBM (basalt fiber and bamboo fiber) into HFRC (Hybrid fiber-reinforced concrete) resulted in a 17.11% increase in compressive strength (CS) after 28 days of maturing when the BFBM dose was 2.0%. Utilizing BFBM to analyze the flexural strength (FS) parameter led to a significant enhancement in FS. At a dosage of 1.5%, the FS increased by 100% after 7 days of curing, while at a dosage of 2% after 28 days of maturing, the FS increased by 52.98% compared to concrete. The UPV Test verified the presence of a uniform concrete mixture. Examination of data using SPSS software was done to perform regression analysis, factor analysis, and principal component analysis. The regression analysis revealed statistically significant associations between the dosage, maturing age, and mechanical characteristics of concrete. The factor analysis showed an efficient consolidation of the three variables into a single component, which accounted for 88.08% of the variation. The Kaiser-Meyer-Olkin (KMO) measure validated the sufficiency of the sample, whereas Bartlett’s test revealed the presence of sphericity. The results indicate that the dosage amount and the length of time for curing have compelling impact on the strength qualities of the concrete.