High-strength high-thermal-insulating building block

Abstract

The invention discloses a high-strength high-thermal-insulating building block including following materials, by weight, 20-40 parts of cement, 5-60 parts of yellow sand and 1-8 parts of a main activator, wherein the main activator is hydrotalcite or a hydrotalcite-like material. In the formula of the building block, the cement, the yellow sand and the main activator are compounded so that a synergetic effect is achieved. A complex reaction between microscale polyvalent metal ions in the cement and the main activator is carried out, and then the microscale polyvalent metal ions is complexed at a quartz sand-water interface or a silicon dioxide-water interface for activating surfaces of the cement and the quartz sand to change a conventional stacking status of the cement, thereby forming a giant network complexing structure in the system. Meanwhile, when the main activator is complexed with the microscale polyvalent metal ions, interlayers in the main activator is expanded to uniformly form nanopores of which diameters are about 1-5 nm, so that the building block is excellent in strength, thermal-insulating performance, water-retaining property, constructability and the like.

Description

technical field [0001] The invention relates to building materials, in particular to a high-strength and high-insulation block, which is a multi-functional building block that can be used not only as a structural material for a weighing wall, but also as an insulation material. Background technique [0002] Ordinary blocks, including hollow blocks, mostly use coal slag, coal gangue, pumice ceramsite as coarse aggregate, fly ash, slag, etc. as fine aggregate, and ordinary Portland cement as adhesive. made. [0003] Among them, in the design of the thermal insulation block, on the one hand, the thermal insulation performance of the thermal insulation block is improved through the structural setting of the thermal insulation block, such as setting a number of hollow layers, extending the thermal bridge, etc.; The material and formula of the block are improved to improve its thermal insulation performance. In terms of the formulation of thermal insulation blocks, it is common ...

AI Technical Summary

Problems solved by technology

[0006] 2. The water retention rate of the block is low, and the water retention rate is uneven. The local part of the block is easy to accumulate water, which breaks out from the large pores, and the thermal insulation block is prone to local cracks due to environmental reasons such as water vapor, etc.