Carbon Dioxide: A Raw Material for Cementitious Mortar

作者：A. Fantilli, Riccardo Calvi, Edoardo Quieti, Pier Luigi Radavelli · 发表于：Materials Proceedings · 年份：2021 · DOI：10.3390/materproc2021005002 · 被引用次数：1

Buildings and infrastructures can absorb CO2 from the atmosphere because of the carbonation process that affects the calcium hydroxide of concrete elements. The aim of this research project is to initiate the absorption at casting by adding dry ice pellets to cement-based mortars. Test results demonstrate that the flexural and compressive strength of the mortars are not modified by this addition. Conversely, due to the presence of CO2, the standard deviation of strength reduces with respect to that measured in plain mortars. Thus, carbon dioxide can be considered a valuable resource that improves the mechanical behavior of construction materials.