INCORPORAÇÃO DA MUCILAGEM DE PALMA FORRAGEIRA NA ELABORAÇÃO DE ARGAMASSA CIMENTO PORTLAND

Abstract

The forage palm is a water-rich cactus with low dry matter content, when processed provides a very thick mucilage capable of becoming a vehicle of dispersion of pulverulent materials. In this work we sought in general to evaluate viability of water substitution by palm mucilage in the elaboration of mortar of Portland cement, by which used the methodology of extraction of mucilage by means of the process of removal of the epidermis and cutting what is in smaller pieces, using the freezing to facilitate the separation of the dry part of the liquid and homogenization of the mucilage together with water. The mortars were produced with 1: 3 traces and water / cement factor 0.6. To analyze the influence of the mucilage in the mortar were made control bodies (0% of substitution) and with substitution of 30% and 50% of water by mucilage.To characterize the influences of the addition of mucilage were carried out the tests of water absorption and resistance to axial compression. The results showed that there was an increase in the plasticity of the mortars, a decrease in the water absorption by up to 390% and an increase in the maximum average compressive strength of 25MPa, 12.88% higher than the control mortar. It is concluded that the mucilage renders Portland cement mortars more efficient, adopting them as a plasticiser additive in the preparation of coatings and / or floors.