Preparation method for antistatic cement-based self-levelling surface-layer mortar

A cement-based, flat layer technology, applied in the production of self-leveling flat layer mortar, can solve the problems of endangering personal safety, poor electrical conductivity, explosion and fire, and achieve the effects of resource saving, smooth surface and improved comfort

Inactive Publication Date: 2015-04-15
北京敬业达新型建筑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Most of the existing cement-based self-leveling layer mortars use hemihydrate gypsum and dihydrate gypsum in the formula. In order to save resources and comprehensive utilization, people have begun to study the use of industrial solid waste such as fly ash and desulfurized gypsum to produce self-leveling materials, but the conductivity of these materials is very poor. As we all know, any two objects of different materials are separated after contact, and static electricity can be generated. The most common is frictional electricity. The better the

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  • Preparation method for antistatic cement-based self-levelling surface-layer mortar
  • Preparation method for antistatic cement-based self-levelling surface-layer mortar
  • Preparation method for antistatic cement-based self-levelling surface-layer mortar

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Embodiment 1

[0033] The specific embodiment that realizes the preparation method of a kind of antistatic cement-based self-leveling flat layer mortar of the present invention is:

[0034] 1. First, select raw materials:

[0035] High alumina cement: CA50-G6 type;

[0036] Portland cement: Portland cement, strength grade 42.5;

[0037] Fly ash: Class I;

[0038] Desulfurization gypsum: the content of calcium sulfate dihydrate is >93% and the mesh number is 200;

[0039] Quartz sand: mesh number 50-100, mud content ≤ 1%, moisture content ≤ 0.5%;

[0040] Tailing sand: mesh number 50-100, mud content ≤ 1%, moisture content ≤ 0.5%;

[0041] Carbon fiber: polyacrylonitrile-based carbon fiber with a length of 3mm;

[0042] Graphite powder: 500 mesh flake graphite powder with carbon content ≥ 99%;

[0043] Redispersible latex powder: acrylate latex powder with a glass transition temperature of -17°C;

[0044] Cellulose ether; hydroxypropyl methylcellulose ether with a viscosity of 1000mPa·...

Embodiment 2

[0058] The specific embodiment that realizes the preparation method of a kind of antistatic cement-based self-leveling flat layer mortar of the present invention is:

[0059] 1. First, select raw materials:

[0060] High alumina cement: CA50-G6 type;

[0061] Portland cement: Portland cement, strength grade 42.5;

[0062] Fly ash: Class I;

[0063] Desulfurization gypsum: the content of calcium sulfate dihydrate is >93% and the mesh number is 200;

[0064] Quartz sand: mesh number 50-100, mud content ≤ 1%, moisture content ≤ 0.5%;

[0065] Tailing sand: mesh number 50-100, mud content ≤ 1%, moisture content ≤ 0.5%;

[0066]Carbon fiber: polyacrylonitrile-based carbon fiber with a length of 5mm;

[0067] Graphite powder: 500 mesh flake graphite powder with carbon content ≥ 99%;

[0068] Redispersible latex powder: vinyl acetate latex powder with a glass transition temperature of -10°C;

[0069] Cellulose ether; hydroxypropyl methylcellulose ether with a viscosity of 1000...

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Abstract

The invention provides a preparation method for antistatic cement-based self-levelling surface-layer mortar. The preparation method comprises: selecting high-aluminium cement, aluminium cement, Portland cement, fly ash, desulfurized gypsum, quartz sand, mine tailing sand, carbon fiber, graphite powder, redispersible latex powder, cellulose ether, a water reducer, an antifoaming agent, a rapid-setting early-strength agent and a retarder as raw materials, preparing according to a ratio, and uniformly mixing in a high-speed mixer at a rotation speed of 60-200 r/min for 8-10 min, so as to prepare the antistatic cement-based self-levelling surface-layer mortar. By adding a large amount of fly ash and other industrial waste slag, wastes are changed into valuables, a large amount of source is saved, and considerable social economic benefit is brought. Carbon fiber and graphite powder in the raw materials possess electric conductivity and form a stereo point-line-surface interlaced three-dimensional electric-conduction system in a mortar hydrate through combined usage, and exhaust and release of static electricity are facilitated. Additionally, cast self-levelling surface-layer mortar is flat in surface, also is capable of reducing sound of vehicles rolling ground, and is applicable to ground leveling and decoration of a place needing to prevent static electricity.

Description

technical field [0001] The invention relates to the technical field of production of self-leveling layer mortar, in particular to a preparation method of antistatic cement-based self-leveling layer mortar. Background technique [0002] Self-leveling mortar is a kind of ground material that is composed of inorganic or organic gelling materials, fine aggregates, fillers and admixtures. It has fluidity after being stirred with water or can be leveled with a little auxiliary paving. It has high fluidity, Fast construction, smooth surface and other advantages. Inorganic self-leveling mortar includes cement-based self-leveling mortar and gypsum-based self-leveling mortar. Among them, cement-based self-leveling materials are the most widely used, and are widely used on the floors of large supermarkets, production workshops, garages and warehouses. superior. [0003] Most of the existing cement-based self-leveling layer mortars use hemihydrate gypsum and dihydrate gypsum in the for...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B111/62
Inventor 周建启杨洪昌夏骞
Owner 北京敬业达新型建筑材料有限公司
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