Low-carbon mass concrete and preparation process thereof

The invention relates to the technical field of building materials, and particularly discloses low-carbon mass concrete and a preparation process thereof. The low-carbon mass concrete is prepared from the following raw materials in parts by weight: 20 to 25 parts of Portland cement, 10 to 15 parts of fly ash, 16 to 20 parts of lime powder, 6 to 8 parts of polyvinyl alcohol, 3 to 8 parts of cross-linking agent, 4 to 8 parts of amino modified polysiloxane, 4 to 6 parts of quartz sand and 40 to 45 parts of water. The preparation method comprises the following steps: weighing the raw material components, adding the polyvinyl alcohol, the amino modified polysiloxane, the cross-linking agent and half of the water, mixing and stirring to obtain a primary mixture; and adding Portland cement, lime powder, fly ash, quartz sand and the rest of water into the primary mixture, and stirring to obtain the low-carbon mass concrete. The composition disclosed by the invention can be used for foundation engineering construction