Light-weight, high-strength and high-durability concrete for fabricated building and preparation method thereof

The invention relates to lightweight high-strength high-durability concrete for a prefabricated building and a preparation method of the lightweight high-strength high-durability concrete, and belongs to the technical field of lightweight concrete. In order to solve the problem that the existing lightweight concrete cannot give consideration to self weight, strength and durability, the invention provides the lightweight high-strength high-durability concrete for the prefabricated building, which comprises the following components: cement, water, fine aggregate, light coarse aggregate, a composite admixture, a water reducing agent, polyacrylonitrile fiber and basalt fiber. The strength grade of the lightweight high-strength high-durability concrete provided by the invention reaches LC50-LC55, the lowest apparent density grade can reach 1700kg/m < 3 >, the self weight of the concrete is reduced while the strength is improved, the durability of the lightweight concrete is further improved, and the requirements o