水泥行业碳排放量几乎占全国二氧化碳排放总量的20%，每减少一吨水泥熟料用量，约减少0.866吨二氧化碳排放。用石灰石粉取代水泥可显著降低水泥行业的碳排放量。然而，目前关于石灰石粉在水泥基材料中的物理填充作用和化学结合量的定量研究很有限。关于石灰石粉和含铝相的辅助性胶凝材料的协同效应主要局限于定性研究，很少有人定量研究分析石灰石粉和含铝相的辅助性胶凝材料的协同效应。同时，石灰石粉对水泥基材料抗硫酸盐腐蚀特性和抗氯离子渗透性的影响还不清楚。针对上述问题，本项目将研究石灰石粉在水泥基材料中的物理填充作用和化学结合量，以及石灰石粉和含铝相辅助性胶凝材料的协同效应，探讨掺石灰石粉水泥基材料的抗硫酸盐腐蚀特性和抗氯离子渗透性，以及抗硫酸盐腐蚀特性和抗氯离子渗透性与胶凝材料组成特性的关系，为石灰石粉在水泥或混凝土中的推广应用提供理论基础。

Carbon emissions from cement industry almost accounts for 20% of the country's total carbon dioxide emission. Reduction of one ton of cement clinker would appropriately decrease 0.866 tons of carbon dioxide emissions. Using limestone to substitute cement could significantly reduce carbon emissions of cement industry. However, so far, quantitative studies on physical filling effect and amount of chemical bonding of limestone powder are very limited. Synergistic effect between limestone powder and supplementary cementitious materials containing aluminum-containing phase is mainly confined to qualitative study, few researches involves to the quantitative study of synergistic effect between them. Meanwhile, the influence of limestone powder on the sulfate corrosion resistance and chloride penetration resistance of cementitious materials is unclear. To solve the above problems, this project will study the physical filling effect and amount of chemical bonding of limestone powder, as well as the synergistic effect between limestone powder and supplementary cementitious materials containing aluminum-containing phase. Sulfate corrosion resistance and chloride penetration resistance of cementitious materials incorporating limestone powder will also been discussed, and the relationship between sulfate corrosion resistance and chloride penetration resistance and composition of cementitious materials will been established. This project will provide a theoretical basis for the application of limestone powder in cement or concrete.