Refractory and flame-retardant building concrete and method for preparing same

Abstract

The invention discloses refractory and flame-retardant building concrete and a method for preparing the same. The refractory and flame-retardant building concrete comprises, by weight, 85-100 parts ofmoderate-heat silicate cement, 20-35 parts of cementitious materials, 20-30 parts of ultrafine mineral powder, 15-30 parts of polyethylene terephthalate fibers, 10-20 parts of corundum powder, 10-15parts of perlite, 20-35 parts of fiber mixtures, 10-20 parts of rubble, 10-15 parts of aluminum sulfate, 15-20 parts of misfire coarse aggregate, 15-20 parts of magnesium hydroxide and 5-10 parts of admixtures. The refractory and flame-retardant building concrete and the method have the advantages that the fiber mixtures, the magnesium hydroxide and the admixtures are led into moderate-heat silicate cement mortar according to the various proportions, accordingly, the binding power of the moderate-heat silicate cement mortar can be improved, and the refractory and flame-retardant building concrete is excellent in permeability resistance, crack resistance, impact resistance and the like; the refractory and flame-retardant building concrete can be applied to manufacturing plaster layers of interior and exterior walls of various buildings, can be smeared by common construction means and is reliable in performance; the refractory and flame-retardant building concrete is reasonable in cost and easy and convenient to construct, and the like.

Description

technical field [0001] The invention relates to the technical field of medium-heat Portland cement production, in particular to a fire-resistant and flame-retardant building concrete and a preparation method thereof. Background technique [0002] The mixture of medium heat Portland cement, sand, 2-5 parts of high-efficiency water reducer, 3-6 parts of hardener, 1-4 parts of magnesium aluminum silicate lubricant and water is called medium heat Portland cement mortar. It is used in construction projects and other places, such as building houses. The main components of ordinary medium-heat Portland cement mortar are medium-heat Portland cement and sand. The bonding force of medium-heat Portland cement sand is also quite strong, but with the influence of dry and over-humid environment , will affect the adhesion of medium heat Portland cement mortar. [0003] Medium-heat Portland cement is widely used in the field of construction engineering as a hydraulic cementitious materi...

AI Technical Summary

Problems solved by technology

The main components of ordinary medium-heat Portland cement mortar are medium-heat Portland cement and sand. Traditional medium-heat Portland cement mortar has shortcomings such as cracks, hollowing, and poor bonding performance as a plastering material. slow hardening