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Cement plate composite modifier

A compound modifier and cement board technology, which is applied in the field of cement board compound modifier, can solve the problems of low excitation effect, achieve good product stability, improve low demoulding strength, and reduce product cost.

Inactive Publication Date: 2015-11-18
ZHUO DA NEW MATERIAL TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical task of the present invention is mainly aimed at the deficiencies of the above-mentioned prior art, that is, the used additives of the cement boards of the prior art contain chloride ions and sulfate ions, pan-alkali and low-calcium fly ash that corrode steel bars. effect is low, the cement board composite modifier of the present invention avoids or reduces the risk of steel bars being corroded by chloride ions and sulfate ions, and can effectively stimulate the activity of low-calcium fly ash

Method used

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  • Cement plate composite modifier

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Effect test

Embodiment 1

[0049] A cement board composite modifier, its raw material components and parts by weight are: powdered sodium silicate 8kg, calcium formate 3kg, sodium metaaluminate 5kg, 40,000 viscosity hydroxypropyl methylcellulose ether 1kg, powder Body type polycarboxylate superplasticizer 8kg, calcium stearate 1kg, styrene-acrylic emulsion 8kg.

Embodiment 2

[0051] A cement board composite modifier, its raw material components and parts by weight are: 12g of liquid sodium silicate, 3kg of calcium formate, 5kg of sodium metaaluminate, 1kg of hydroxypropyl methylcellulose ether with a viscosity of 100,000, liquid type Polycarboxylate superplasticizer 15kg, calcium stearate 1kg, styrene-butadiene emulsion 10kg.

Embodiment 3

[0053] A cement board composite modifier, its raw material components and parts by weight are: 10kg of powdered sodium silicate, 3kg of calcium formate, 2kg of sodium carbonate, 1kg of hydroxypropyl methylcellulose ether with a viscosity of 40,000, powder type Polycarboxylate superplasticizer 8kg, zinc stearate 1kg, VAE rubber powder 5kg.

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Abstract

The invention discloses a cement plate composite modifier, and belongs to the field of composite modifier production. The composite modifier is composed of a hardening agent, an early strength agent, an accelerator, a water-retaining agent, a water reducer, a water repellent, and polymer. Compared with the prior art, the provided composite modifier can solve the problems that the demoulding strength of cement plate is low, the setting time is long, the cement plate secretes water, and the cement plate is brittle; moreover, the modifier can avoid or reduce the risk that the steel bars are corroded by chlorine ions and sulfate ions; at the same time, the activity of low-calcium fly ash is effective excited, a scheme is provided for the large mixing amount utilization of low-calcium fly ash, and the product cost is reduced.

Description

technical field [0001] The invention belongs to the field of composite modifiers, in particular to a composite modifier for cement boards. Background technique [0002] In recent years, new building materials at home and abroad have developed rapidly in the direction of light weight, high strength, energy saving and waste utilization. Wood fiber reinforced cement boards (referred to as cement boards) with plant fibers as reinforcement materials, such as cement sawdust boards and cement particle boards, are used in buildings. It is widely used in interior and exterior wall panels, partition panels, floors, etc. Compared with traditional building materials, wood fiber reinforced cement board has high strength, good weather resistance, moisture-proof and waterproof, sound and heat insulation, flame-retardant, anti-corrosion and anti-bacterial, good machining performance (sawable, drillable, nailable, planable) It has the advantages of cutting, punching, slotting, etc.), easy d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38
Inventor 邝清林杨卓舒史红彬
Owner ZHUO DA NEW MATERIAL TECH GRP
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