Desenvolvimento de argamassa com incorporação de lodo de indústria têxtil visando a aplicação sustentável na construção civil.

Abstract

Due to the increase in world population, it increases the effect consumption. The industries produce an accelerated pace, which also produces a high amount of waste. Many of these wastes are disposed of improperly, causing losses to the industries and the environment. Due to these factors, several researches are being developed, aiming at the reuse or recycling of such waste. One of these is the waste from the textile industry, also known as textile sludge. This research aimed to characterize and study the incorporation of textile sludge in the composition of mortars. We made the following analysis: thermogravimetry, vibrational spectroscopy of infrared absorption, X-ray diffraction, chemical analysis, particle size analysis, and testing of compressive strength. In mortars used the feature 1: 2: 9 and the percentages of clay, 0%, 5%, 10%, 15% and 20% with curing times of 7, 14 and 28 days. The percentage of sludge were added to the mortar as substitute material for cement, after undergoing heat treatment in a muffle furnace at a heating rate of 10 ° C / min and settling time of 2 hours at 400 ° C, 450 ° C, 500 ° C, 550 ° C and 600 ° C. The compressive strength tests indicated that all mortars had results that meet the minimum stipulated by the ABNT norms in force. It was also observed that the compositions of mortar to cure 28 days and incorporation of textile sludge calcined at a temperature of 600 ° C showed the best results of compressive strength. Physicalchemical characterizations carried out concluded that the raw materials presented chemical compatibility and thermal stability enough for incorporation in mortar.