Light-weight high-strength foam concrete and preparation method thereof

Abstract

The invention belongs to the technical field of building materials, and particularly relates to light-weight high-strength foam concrete and a preparation method thereof. The light-weight high-strength foam concrete is prepared by enabling superfine cement-based slurry to be uniformly mixed with a foam stabilizer, foam and a light-weight aggregate according to a mass ratio of (250-800):(0.05-5):(15-30):(2-6) and wet-milling, forming and maintaining, wherein the obtained light-weight high-strength foam concrete is 180-600 kg / m<3> in apparent density, 0.8-8.5 MPa in compressive strength, 0.055-0.12 W / m-k in heat conductivity coefficient, belongs to a A-stage incombustible material, and can be used as a light-weight high-strength composite wallboard.

Description

technical field

[0001] The invention belongs to the technical field of building materials, in particular to a lightweight high-strength foam concrete and a preparation method thereof. Background technique

[0002] The field of building materials in my country is advocating a green economy and a low-carbon economy. Therefore, the utilization of waste resources, thermal insulation and energy saving, and thermal insulation materials have become important development directions for today's building materials; cement foam concrete has light weight, thermal insulation, heat insulation, sound insulation, Fireproof and vibration-absorbing properties, the apparent density of commonly used cement foam concrete is 300kg / m 3 ~1200kg / m 3 , the compressive strength is 0.5MPa~15.0MPa, and the thermal conductivity is greater than 0.085W / (m•K). It can be used in the production of blocks, light boards and other fields. There is a close relationship between the performance and density of cemen...