Clinker-free cement has an extremely low carbon content, and this cement is produced using a specific method.

Abstract

The invention proposes a clinker-free cement of ultra-low carbon content, produced from the following raw materials: granular blast furnace slag, gypsum, and calcium oxide base material. Granular blast furnace slag accounts for 65% - 95% of the total weight of the raw materials, gypsum accounts for 4.5% - 34.5% of the total weight of the raw materials, and the remainder is calcium oxide base material. The percentage by weight of calcium oxide and / or calcium hydroxide in the total weight of the raw materials is controlled to be 0.05% - 0.75%. The invention also proposes a method for producing clinker-free cement of ultra-low carbon content and the application of clinker-free cement of ultra-low carbon content in the production of concrete, mortar, or cement products. Clinker-free cement with extremely low carbon content according to the invention has advantages such as high initial strength, extremely high long-term strength, low shrinkage, resistance to carbonization, low carbon emissions, etc.