Investigation on the usage of waste marble powder in cement-based adhesive mortar

In this study, the availability of marble powder (MP) additive at different ratios were investigated instead of dolomite, which is the raw material in adhesive mortars of insulation board. Marble waste powder's humidity, chemical structure and particle size was investigated. Then, compressive - tensile - bending strengths, water absorption, initial setting time, and flow-spreading tests at the adhesive mortars with additive were performed. All results showed that marble waste powder's humidity was lower than 1%, and particle size amounts +710 gm and -125 gm were more than raw dolomite. As a result of the tests, it was determined that the values were obtained in accordance with the relevant EN standards. According to the results of XRD, the ratio of calcium carbonate and hatrurite ratio of marble powder are exceeded. The use of marble powder with dolomite was also investigated economically and it was concluded that it is more advantageous to make cost calculations. (C) 2017 Elsevier Ltd. All rights reserved.