Evaluación de la resistencia a la compresión de bloques de concreto celular no autoclavado reforzado con fibras sintéticas de polipropileno y vidrio

Abstract

Concrete is the most widely used material worldwide in the construction sector. However, the high density or volumetric weight of conventional concrete, around 2350 kg/m³, makes it impractical for the construction of floor slabs, blocks, masonry and roofs. Therefore, the objective of the present work was to evaluate the compressive strength of cellular concrete blocks reinforced with polypropylene and glass synthetic fibers. Using a quantitative approach methodology, starting with the measurement of the compressive property of cellular concrete blocks reinforced with polypropylene and glass fibers. The methodology was based on the elaboration of block samples applying standardized compressive strength tests and measuring instruments to obtain the results. The analysis included descriptive statistics, correlations and comparisons with other studies related to the research for the interpretation and discussion of the data obtained and their application proposals. The results obtained indicate that, for a density of 800 kg/m³, the highest compressive strength is obtained with the addition of 0.4% of polypropylene fiber, reaching 5.98 MPa. The mixture with glass fiber, at 0.4%, showed a maximum strength value of 4.11 MPa. For a density of 1200 kg/m³, the highest compressive strength was 14.21 MPa, obtained with an addition of 0.4% polypropylene fiber. For glass fiber, the maximum value recorded was 7.07 MPa with a dosage of 0.75%. Concluding that the addition of polypropylene fibers improves the compressive strength of non-autoclaved cellular concrete blocks, demonstrating that incorporating 0.4% of polypropylene fibers, generates an improvement in the mechanical properties of cellular concrete.