Self-leveling mortar doped with phosphorus slag powder

Abstract

The invention belongs to the technical field of building materials, and particularly relates to a self-leveling mortar doped with phosphorus slag powder. The self-leveling mortar doped with phosphorus slag powder comprises ordinary Portland cement, high-aluminum cement, phosphorus slag powder, S105 slag powder, coal ash, river sand, a composite activator, a water reducer, a stabilizer, a defoaming agent and water. By adopting the self-leveling mortar doped with phosphorus slag powder, the problems of high cost, rough hardened surface and shrinkage crack of ordinary self-leveling mortar are solved, and the recycling use ratio of the industrial byproduct phosphorus slag is also improved. The self-leveling mortar doped with phosphorus slag powder has the advantages of good fluidity, fast speed in curing and hardening, low heat of hydration, high early strength, fast speed in improvement of long-term strength, small shrinkage distortion, smooth and level hardened surface, no crack and so on, can be used for not only construction of new ground and but also repairing of worn, dusting or damaged ground, and can be used for self leveling of various floor base levels.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a self-leveling mortar mixed with phosphorus slag powder. Background technique [0002] Phosphorus slag is the industrial waste slag discharged during the process of refining yellow phosphorus in high-temperature electric furnaces. For every 1 ton of yellow phosphorus produced, about (8-10) tons of phosphorus slag is produced, and the discharge is huge. The chemical composition and phase structure of phosphorus slag are similar to those of water-quenched blast furnace slag, and it has potential chemical activity. At present, a large amount of phosphorus slag is mainly disposed of by stacking, which not only occupies a large amount of land, but also pollutes nearby soil and water bodies. In the construction process of the traditional cement mortar floor, after the mortar is mixed, manual paving, scraping, plastering and other processes are used. The conseq...

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Problems solved by technology

However, at present, the production cost of self-leveling mortar is relatively high, and the problem of shrinkage cracking in the later stage cannot be completely overcome, and the phenomenon that the surface is not very smooth and easy to powder after hardening of the surface layer often occurs, which restricts the production and popularization of self-leveling mortar in my country. pace

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