UTILIZATION OF MINERAL WASTE & CONSTRUCTION FOR GEOPOLYMER SYNTHESIS

• Main Author: Aurelia, Irvina
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/55346
• Institution: Institut Teknologi Bandung

Global CO2 emissions are estimated to reach around 28,000 million tons by 2050. The Portland cement industry produces 0.83 kg of CO2 per kg of cement production, which can be said to account for 8% of total global CO2 emissions. In addition to CO2 emissions, the mineral industry also poses major problems for the environment, especially B3 waste. Therefore, a solution is needed to reduce waste while looking for alternatives to Portland cement. One solution to these problems is to synthesize geopolymer cement. The purpose of this study is to compare the environmental friendliness of ordinary Portland cement with geopolymers from mineral and construction waste. The environmental friendliness will be measured from the CO2 emissions generated from each stage of its production. The objectives of this research is to ensure that geopolymers from mineral and construction waste are more environmentally friendly than ordinary Portland cement, determine the amount of CO2 emissions produced in the production process of ordinary Portland cement and geopolymers, determine the stage that contributes to the production of CO2 emissions from ordinary Portland cement and determining the CO2 emission produced by geopolymers with variations in composition. This research consists of Life Cycle Analysis (LCA), calculating carbon emissions, and modeling using Minitab software. The LCA stage includes an analytical process involved in the manufacture of Portland cement and geopolymers and an analysis of the impact of environmental products in the form of carbon emissions. Calculation of carbon emissions is carried out at each stage for the raw material production process as well as the Portland cement and geopolymers production process to compare the CO2 emissions produced, so that the environmental friendliness of the geopolymer can be proven. Modeling is carried out, modeling is carried out using Minitab software to determine the coefficient of the CO2 emission model which states that CO2 emissions are generated by the composition of mineral waste and construction.