Gradient self-excitation type low-carbon cement and preparation method thereof

• Main Authors: NIE WENHAI, YAO PIQIANG, HUANG XIONG, DU XIN, ZHAO DI, LIU MINGHAO
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention discloses gradient self-excitation type low-carbon cement and a preparation method thereof. The gradient self-excitation type low-carbon cement comprises the following raw materials in parts by weight: 15-20 parts of an early-age self-excitation cementing material with the particle size of 0.1-10 microns, the specific surface area of 1150-1250 m < 2 >/kg and the uniformity coefficient of more than 1.1; the specific surface area of particles is 380-400 m < 2 >/kg, the uniformity coefficient is larger than 1.1, and the R45mu m screen residue is smaller than 5%; the specific surface area of particles is 480-550m < 2 >/kg, the uniformity coefficient is greater than 1.1, and the R45mu m screen residue is less than 2%; the particle specific surface area is 240-300 m < 2 >/kg, the uniformity coefficient is larger than 0.9, and the R45mu m screen residue is smaller than 40%. The gradient self-excitation effect from the early age to the long age is achieved, and the mechanical property of the low-carbon