Heat-resistant concrete as well as preparation method and application thereof

The invention relates to the technical field of heat-resistant materials, and particularly discloses heat-resistant concrete as well as a preparation method and application thereof. The heat-resistant concrete is prepared from forsterite, calcium aluminate cement and an additive, the forsterite is a graded ingredient, and in the graded ingredient, the forsterite with the particle size of 5-8 mm accounts for 22-26% by mass, the forsterite with the particle size of 3-5 mm accounts for 22-26% by mass, the forsterite with the particle size of 1-3 mm accounts for 30-34% by mass, and the forsterite with the particle size smaller than 1 mm accounts for 18-22% by mass. The concrete product disclosed by the invention is high in strength, excellent in comprehensive performance, natural and easily available in raw materials and higher in cost performance. 本发明涉及耐热材料技术领域，具体公开了一种耐热混凝土及其制备方法与应用。本发明的耐热混凝土，包括镁橄榄石、铝酸钙水泥和外加剂；所述镁橄榄石为级配料，其中以质量百分比计，所述级配料中，粒径为5-8mm的占比22-26％，粒径为3-5mm的占比22-26％，粒径为1-3mm的占比30-34％，粒径为1mm以下的占比18-22％。本发明的