Cement mortar and preparation method thereof

A technology of cement slurry and cement, which is applied in the field of building materials, can solve the problems of low concrete strength, and achieve the effects of strong penetration resistance and freeze-thaw resistance, low bleeding rate, and low bleeding rate

Active Publication Date: 2014-09-17
广东鑫隆管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bleeding can cause some adverse consequences, such as cracking, low concrete strength

Method used

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  • Cement mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A cement slurry, comprising the following raw materials in parts by weight: 50 parts of aluminate cement and sulphoaluminate cement (weight ratio 1:1), 10 parts of zinc sulfide, 55 parts of urea-formaldehyde resin, 45 parts of sodium chloride, hydroxy 20 parts of methyl cellulose, 40 parts of diethylene glycol, 100 parts of calcium carbonate, 10 parts of antimony trioxide, 40 parts of chlorinated paraffin, 70 parts of methyl ethyl ketone, 80 parts of china clay powder (400 mesh), curing agent (weight ratio of 1:4 ammonium chloride and hexamethylenetetramine) 20 parts, water 100 parts.

[0015] The preparation method of cement slurry comprises the following steps: uniformly mixing cement, zinc sulfide, urea-formaldehyde resin, sodium chloride, hydroxymethyl cellulose, diethylene glycol, and water, heating to 200°C, stirring for 60s, adding calcium carbonate, three Antimony oxide, chlorinated paraffin, methyl ethyl ketone, china clay powder, and curing agent are mixed eve...

Embodiment 2

[0017] A cement slurry comprising the following raw materials in parts by weight: 100 parts of ferroaluminate cement, fluoroaluminate cement and phosphate cement (weight ratio 1:1:1), 50 parts of zinc sulfide, 65 parts of urea-formaldehyde resin, 55 parts of sodium chloride, 30 parts of hydroxymethyl cellulose, 80 parts of diethylene glycol, 120 parts of calcium carbonate, 50 parts of antimony trioxide, 50 parts of chlorinated paraffin, 80 parts of methyl ethyl ketone, 120 parts of china clay powder (500 mesh) 30 parts of curing agent (ammonium chloride and hexamethylenetetramine with a weight ratio of 1:5), 120 parts of water.

[0018] The preparation method of cement slurry comprises the following steps: uniformly mix cement, zinc sulfide, urea-formaldehyde resin, sodium chloride, hydroxymethyl cellulose, diethylene glycol, and water, heat to 200°C, stir for 50s, add calcium carbonate, three Antimony oxide, chlorinated paraffin, methyl ethyl ketone, china clay powder, and cu...

Embodiment 3

[0020] A cement slurry comprising the following raw materials in parts by weight: 70 parts of phosphate cement, 30 parts of zinc sulfide, 60 parts of urea-formaldehyde resin, 50 parts of sodium chloride, 25 parts of hydroxymethyl cellulose, 60 parts of diethylene glycol, carbonic acid 110 parts of calcium, 30 parts of antimony trioxide, 45 parts of chlorinated paraffin, 75 parts of methyl ethyl ketone, 90 parts of china clay powder (450 mesh), curing agent (ammonium chloride and hexamethylenetetramine with a weight ratio of 1:4.5 ) 25 parts, water 110 parts.

[0021] The preparation method of cement slurry comprises the following steps: uniformly mix cement, zinc sulfide, urea-formaldehyde resin, sodium chloride, hydroxymethyl cellulose, diethylene glycol, and water, heat to 220°C, stir for 70s, add calcium carbonate, three Antimony oxide, chlorinated paraffin, methyl ethyl ketone, china clay powder, and curing agent are mixed evenly.

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Abstract

The invention discloses a cement mortar and a preparation method thereof. The cement mortar is prepared from the following raw materials in parts by weight: 50-100 parts of cement, 10-50 parts of zinc sulfide, 55-65 parts of urea-formaldehyde resin, 45-55 parts of sodium chloride, 20-30 parts of hydroxymethyl cellulose, 40-80 parts of diethylene glycol, 100-120 parts of calcium carbonate, 10-50 parts of antimony trioxide, 40-50 parts of chlorinated paraffin, 70-80 parts of methylethylketone, 80-120 parts of porcelain clay powder, 20-30 parts of curing agent and 100-120 parts of water. The preparation method comprises the following steps: uniformly mixing the cement, zinc sulfide, urea-formaldehyde resin, sodium chloride, hydroxymethyl cellulose, diethylene glycol and water, heating to 200-220 DEG C, stirring for 50-70 seconds, adding the calcium carbonate, antimony trioxide, chlorinated paraffin, methylethylketone, porcelain clay powder and curing agent, and uniformly mixing. The cement mortar has the advantages of low bleeding rate (only 0.2-0.3%), high seepage resistance and high freezing resistance.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a cement slurry and a preparation method thereof. Background technique [0002] Bleeding is a phenomenon in which moisture appears on the surface of concrete after paving and before it sets. Bleeding can cause some undesirable consequences, such as cracking and low concrete strength. Therefore, for grouting cement, it is first required that its performance be stable and the bleeding rate be as low as possible. Because the bleeding of cement paste will form holes in the prestressed tunnel, which may become a channel for the intrusion of external harmful media. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the invention provides a cement slurry and a preparation method thereof. The cement slurry has a low bleeding rate and strong penetration resistance and freeze-thaw resistance. [0004] The present invention adopts following technical schem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 叶强叶飞王玥
Owner 广东鑫隆管业有限公司
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