Influence of the mineral barite and prickly pear mucilage on the compressive strength of concrete for urban buildings

Abstract

This research focused on determining the influence of barite (MB) and prickly pear mucilage (MT) on the compressive strength of concrete (f’c 280 kg/cm2) for urban buildings in Cajamarca, 2025. A quantitative approach, a quasi-experimental design, and an explanatory level of analysis were employed. Four mixtures were prepared, consisting of the standard mix and mixtures incorporating 3% MB + 0.3% MT, 6% MB + 0.3% MT, and 9% MB + 0.3% MT. The results indicated that the temperature ranged from 22.50 to 23.50 °C; the slump from 3.30 to 3.80 in; and the unit weight from 2220.00 to 2275.00 kg/m3. Based on the compression tests performed at 28 days, compressive strengths of 290.64, 303.86, 336.38, and 345.53 kg/cm2 were obtained for each type of concrete. The optimal combination was identified as 9% MB + 0.3% MT, as it yielded the greatest strength increase of 18.89% compared to the control concrete [CP]. Finally, it was concluded that MB + MT has a positive influence on the compressive strength [RC] of concrete intended for urban buildings, as it increased its strength and allowed it to withstand greater compressive stresses.