High-performance bonding modification activator for building solid waste treatment

Abstract

The invention discloses a high-performance bonding modification activator for building solid waste treatment, which is composed of three parts. A part A comprises water glass, sodium carbonate, hydrotalcite, fluorgypsum and sodium hydroxide, and the mass ratio of sodium silicate to sodium carbonate to hydrotalcite to fluorgypsum to sodium hydroxide is (5-15): (2-4): (2-4): (10-20): (1-2). A part Bcomprises titanyl sulfate, acid and halide salt, and the mass ratio of titanyl sulfate to acid to halide salt is (1-10): (2-3): (2-3). A part C comprises polypropylene carbonate, redispersible latexpowder and a nano-silica ethanol solution, and the mass ratio of polypropylene carbonate to redispersible latex powder to nano-silica ethanol solution is (1-5): (1-5): (1-2). The high-performance bonding modification activator has environmental protection property, good excitation performance and strong adhesive property.

Description

technical field [0001] The invention belongs to the field of waste recycling, in particular to a high-performance adhesive modification activator for building solid waste treatment. Background technique [0002] Construction solid waste is the abbreviation of construction solid waste, sometimes called construction waste, which mainly comes from three links in construction activities: building construction (production), building use and maintenance (use) and building demolition (scrapped). The construction waste generated during the construction process mainly includes excavated earthwork, broken bricks, concrete, mortar, pile heads, packaging materials, etc.; the waste generated during the use process mainly includes decoration materials, plastics, asphalt, rubber, etc.; Waste materials such as waste concrete, waste bricks, waste tiles, waste steel bars, wood, broken glass, period materials, etc. [0003] At present, the method of solid waste treatment in our country is st...

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Problems solved by technology

[0006] The excitation of construction solid waste is generally alkali excitation. Solid waste residues are stimulated by various alkali excitation methods, which can indeed achieve high strength, but have the following defects: a. Poor volume stability and large shrinkage; b. If using Alkali excitation, high risk of alkali-aggregate reaction; c. Fast hardening speed, that is, setting time is difficult to control; d. Alkali, pan-alkali, re-alkali during use; e. High cost; f. Poor bonding performance

[0011] It can be seen that the existing activators still have the current situation that the excitation efficiency needs to be improved, and the existing activators pay little attention to the bonding performance, which has an important impact on the subsequent utilization of construction solid waste; Improved excitation and bonding properties

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