Using method of geopolymer based self-levelling ground material

A ground material and geopolymer technology, applied in cement production and other directions, can solve the problems of poor geopolymerization toughness, easy shrinkage and cracking, etc., and achieve the effects of less energy consumption, improved toughness and surface flatness, and less environmental pollution.

Inactive Publication Date: 2017-02-15
ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of poor geopolymeric toughness and easy shri...

Method used

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  • Using method of geopolymer based self-levelling ground material
  • Using method of geopolymer based self-levelling ground material
  • Using method of geopolymer based self-levelling ground material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh Na 2 O SiO 2 Dissolve in 20 parts of water, after standing for 24 hours, add metakaolin (particle size ≤ 200 mesh, metakaolin and Na 2 O SiO 2 The weight ratio is 100:10, a total of 100 parts), quartz river sand (100 parts, fineness modulus 0.8-1.2, mud content ≤ 0.5%), calcium sulfoaluminate concrete expansion agent (5 parts, limit expansion rate ≥ 0.025% (7 days in water)), ethylene / vinyl acetate copolymer latex powder (2 parts), PVA fiber (0.1 part), silicone defoamer (0.4 part), polycarboxylate superplasticizer ( 1 part), use a mortar mixer to stir for 2 minutes, pour the ground, self-leveling molding, and solidify to form a ground material. The properties are shown in Table 1.

Embodiment 2

[0022] Weigh Na 2 O 1.2SiO 2 Dissolve in 30 parts of water, after standing for 24 hours, add slag (particle size ≤ 200 mesh, slag and Na 2 O SiO 2 The weight ratio is 100:15, a total of 100 parts), quartz river sand (150 parts, fineness modulus 0.8-1.2, mud content ≤ 0.5%), calcium sulfoaluminate concrete expansion agent (10 parts, limit expansion rate≥0.025% (7 days in water)), ethylene / vinyl acetate copolymer latex powder (1 part), PP fiber (0.2 part), silicone defoamer (0.6 part), polycarboxylate superplasticizer ( 0.8 parts), use a mortar mixer to stir for 5 minutes, pour the ground, self-leveling molding, and solidify to form a ground material. The properties are shown in Table 1.

Embodiment 3

[0024] Weigh Na 2 O 1.2SiO 2 Dissolve in 35 parts of water, after standing for 24 hours, add slag, fly ash (particle size ≤ 200 mesh, slag, fly ash and Na 2 O SiO 2 The weight ratio is 100:16, a total of 100 parts, of which the weight ratio of slag and fly ash is 7:3), quartz river sand (200 parts, fineness modulus 0.8-1.2, mud content ≤0.5%), sulfur Calcium aluminate-calcium oxide concrete expansion agent (8 parts, limit expansion rate ≥ 0.025% (7 days in water)), vinyl acetate / tertiary carbonic acid ethylene copolymer latex powder (2 parts), PVA fiber (0.1 part), Polyacrylic acid defoamer (0.4 parts), polycarboxylate superplasticizer (0.5 parts), after stirring for 10 minutes with a mortar mixer, pour the ground, self-leveling molding, and solidify to form a ground material. The properties are shown in Table 1.

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Abstract

The invention relates to the technical field of building materials, and aims to provide a using method of a geopolymer-based self-levelling ground material. The material includes a geopolymer, an expanding agent, a redispersible latex powder, a reinforcing fiber, a defoaming agent, a water reducing agent, water and an aggregate; the geopolymer is composed of an aluminum-silicon raw material and an alkali activator. The using method includes the steps: firstly, dissolving the alkali activator in water and placing for 24 h; followed by successively adding the rest of raw material components, stirring for 2-10 min by a mortar stirrer, then casting the ground, self-levelling, molding, and curing to form the ground material. With the geopolymer as a cementitious material, the method has the advantages of less energy consumption and less environmental pollution; the formula is reasonable in design, the expanding agent and the reinforcing fiber can decrease shrinkage and cracking of the ground material, the redispersible latex powder can improve the toughness and surface smoothness of the ground material, the defoaming agent can prevent the ground material from generating a hole structure, and thus the application of the geopolymer material in the engineering construction field is developed.

Description

technical field [0001] The invention relates to a method for using a geopolymer-based self-leveling ground material, which belongs to the field of building materials. Background technique [0002] Self-leveling ground material is a kind of building ground leveling material developed in the 1970s, which is based on inorganic or organic gelatinous materials, mixed with fine sand and various admixtures. Add water and mix evenly in the gray ratio range. After mechanical pumping or manual construction, no manual smoothing is required. The slurry flows under its own gravity to form a flat, economical and durable floor surface. It is an ideal material for ground paving of large supermarkets, shopping malls, parking lots, factory workshops and warehouses. It is also a development direction of building ground construction, with great market potential. Self-leveling ground materials can be divided into gypsum-based, cement-based, and polymer-cement based materials according to differ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B111/62
CPCC04B28/006C04B2111/00482C04B2111/62C04B2201/50C04B14/106C04B14/06C04B2103/0068C04B24/26C04B16/0641C04B2103/50C04B2103/302C04B18/141C04B16/0633C04B18/08Y02P40/10
Inventor 汪海风杨辉张继樊先平华怀偶杨晨
Owner ZIGONG INNOVATION CENT OF ZHEJIANG UNIV
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