Abstract
The production of adhesive mortar uses large proportions of sand, causing undesirable environmental impact as this is a finite resource. In recent years, the insertion of civil construction waste in cement matrixes has intensified with the objective of replacing sand in the mortar manufacturing process. Therefore, in this study, the proportions of 5%, 10%, 15% substitution of the mineral aggregate by basalt dust waste in the production of industrialized adhesive mortar were adopted. The reference mixture of 1:3 (cement: sand) was adopted and the water/dry material ratio was set at 0.20. The adhesive mortars produced in the tests to determine the consistency index, water retention, mass density, open time, tensile strength and water absorption by capillarity were analyzed. The results were satisfactory, demonstrating that it is feasible to use the waste as a substitute for sand in the production of industrialized adhesive mortars.
Highlights
The ceramic industry is directly related to civil construction to the extent that the ceramic pieces can be used as cladding, internal or external, in various buildings for residential, commercial and industrial use [1]
Through the particle size analysis it was found that the stone dust is a material 100% passing through the sieve 30 μm, 10% of the particles have a diameter of 1.71 μm, 50% of 7.48 μm and 90% of 16.56 μm, as well as an average diameter of 8.38 μm
The analysis shows that from 10% of sand replacement by rock dust there is an influence on the determination of open time
Summary
The ceramic industry is directly related to civil construction to the extent that the ceramic pieces can be used as cladding, internal or external, in various buildings for residential, commercial and industrial use [1]. The great acceptance of the product and the applicability as a ceramic tile in buildings is explained by the many advantages it has, such as ease of cleaning, durability, versatility, beauty and diversity, in addition to being a product economically affordable for all consumers [2]. In order to perform its role with excellence, the adhesive mortar, known as the bonding layer, must resist the tensile and shear stresses of both interfaces, i.e., the mortar-substrate and the ceramic tile-mortar. When these stresses exceed their adhesion strength, ceramic tiles are at risk of dislaying [4]
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