Wet-ground carbide-slag-containing activator and application

Abstract

The invention provides a wet-ground carbide-slag-containing activator and application. The wet-ground carbide-slag-containing activator is mainly prepared by subjecting 60-65 parts of carbide slag, 9-9.8 parts of surfactant, 6-6.5 parts of stabilizer and 10-30 parts of water to a wet grinding process. The wet-ground carbide-slag-containing activator has the advantages that the activator uses the carbide slag whose main components are calcium hydroxide and calcium carbonate as the main raw material, the wet grinding process is used to improve the fineness of the carbide slag and increase the specific surface area of the carbide slag so as to increase the dissolution rate and dissolution quantity of the calcium hydroxide and calcium carbonate in the carbide slag, high alkalinity is providedfor the pozzolanic reaction of slag glass, and accordingly slag pozzolanic reaction efficiency is increased, and a slag-based cementitious material is allowed to be high in compressive strength; whenthe mixing amount of the wet-ground carbide-slag-containing activator is 10-15%, the slag-based cementitious material can meet the national standard of 32.5 strength level of ordinary Portland cement.

Description

technical field [0001] The invention relates to the technical field of activators, in particular to a wet grinding carbide slag activator and its preparation method and application. Background technique [0002] Granulated blast furnace slag (referred to as slag) is an irregular glass body obtained by water quenching and quenching in the process of smelting pig iron. Its main component is aluminosilicate, which has potential activity. At present, China produces hundreds of millions of tons of slag every year, of which only 20% to 30% are used as concrete mineral admixtures, and the rest are treated as solid waste. The finely ground blast furnace slag powder is used as the main raw material, excited by an alkaline activator, and stirred to produce an alkali-activated slag cementitious material. The slag cementitious material can make full use of industrial waste residue, and saves the cumbersome process of "two grinding and one burning" required for the preparation of cement...

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Problems solved by technology

[0005] In view of this, the present invention aims to propose a wet grinding calcium carbide slag activator to solve the problem that the existing activators suitable for slag activation are expensive and difficult to popularize and apply

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