An industrial waste survey was performed in the city of Bahia Blanca (Argentina) to analyse the possibility of disposal in a cement matrix. A molecular sieve (MS), from a gas transportation company was found and studied. This granular material is used in absorption towers to filter the hydrocarbons contained in the gas and it is disposed in a safe landfill at the end of its useful life. The objective of the current paper is mainly focused on the feasibility of recycling milled molecular sieves on cement mortars with its incorporation and comparing them with a standard sample (without waste). For MS, bulk density, specific gravity, water absorption, particle size distribution, and X-ray diffraction were tested. Mixes were made by incorporating 0%, 15%, and 25% of milled molecular sieves by weight of cement, to evaluate hydration process at different ages by calorimetry, puzzolanic effect by Frattini test and measure mechanical properties in mortars employing standardized tests. In addition, a leachate analysis of curing water was conducted after 90 days for contaminants. The incorporation of milled molecular sieves in cement mortars produces changes in the properties of the mixture at early ages but the reduction of compressive strength decreases over time. It is concluded that this is a potential alternative to the final disposal of these wastes without harming the environment and has a possible pozzolanic effect on the mixtures.

来源平台：SMART & SUSTAINABLE INFRASTRUCTURE: BUILDING A GREENER TOMORROW, ISSSI 2023