Construction material produced by utilizing industrial residue

Abstract

The invention discloses a construction material produced from industrial residue, aims to provide a construction material having the advantages of light weight, sound insulation, heat insulation, low cost, fire resistance, dense products, high rigidity and the like, and solves the problems with land occupation and pollute environment of phosphate slag and phosphogypsum at the same time. the invention is realized through the following technical scheme: phosphate slag and phosphogypsum are used as raw materials for producing the construction material, which comprises the following components by the weight part: 35 to 65 parts of phosphate slag, 10 to 40 parts of phosphogypsum, 5 to 15 parts of lime, 15 to 28 parts of cement, 0.1 to 0.4 part of light aggregate, 0.02 to 0.05 part of soluble glass, 0.02 to 0.05 part of water-reducing agent, 0 to 0.004 part of retarding agent, 0 to 0.005 part of early-strength admixture, and 0 to 0.008 part of foam killer; the components are weighed by the formula weight part and added to a blender; water is added to the blender with the water-to-material proportion being 4 to 10 and mixed evenly with the materials; and the solution is cast into a die and natural air dried after molding. Dies with different structures can be used according to purposes to conduct cast molding. The construction materials such as wall plates, guardrail decoration pillars, door and window sleeves, vase sleeves and the like can be produced.

Description

Technical field: [0001] The invention relates to a building material, in particular to a building material produced by utilizing phosphorous slag. Background technique: [0002] Phosphorus slag is a kind of industrial waste discharged during the preparation of yellow phosphorus. It is formed by water quenching and cooling in a molten state. Its main component is silicate glass body, SiO 2 The total content of CaO and CaO is more than 80%, which has potential hydration activity, and can gradually hydrate and harden under the action of alkaline stimuli; in addition, it also contains AL 2 o 3 , Fe 2 o 3 、TiO 2 , MgO, K 2 O, Na 2 Oxides such as O have micro-expansion properties. Phosphogypsum is the industrial waste discharged from the process of producing ammonium phosphate and calcium hydrogen phosphate, and its main component is dihydrate gypsum (CaSO 4 .2H 2 O), CaSO 4 .2H 2 O is the main component of the retarder, which can increase the initial and final setting ...

AI Technical Summary

Problems solved by technology

At the same time, a large amount of phosphate slag and phosphogypsum are used to solve the problems of occupying a large amount of land and polluting the environment