A special admixture for assembled mortar products

A prefabricated and admixture technology, applied in the field of mortar products, can solve the problems of unstable strength, high cost and general effect, and achieve the effects of accelerating the early hydration rate, solving the poor fluidity and improving the early strength.

Active Publication Date: 2022-03-18
河北恒誉伟业建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] ①The system needs to use sulphoaluminate cement, and the cost is relatively high;
[0006] ②Poor fluidity;
[0008] ④ Poor control of coagulation time;
[0009] ⑤ Unstable strength
However, the above-mentioned technical scheme has been tested by our side, and the effect is average, and it needs a long final setting time, which is not suitable for large-scale promotion and application in the north, especially in the northeast region.

Method used

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  • A special admixture for assembled mortar products
  • A special admixture for assembled mortar products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] The prefabricated mortar product special admixture of the present embodiment includes the following formulation components in parts by weight,

[0094] 5 parts of superplasticizer powder,

[0095] 35 parts of rubber powder,

[0096] 3 parts retarder,

[0097] 5 parts of defoamer,

[0098] 50 parts of stimulating agent.

[0099] Among the above-mentioned special admixtures for assembled mortar products,

[0100] The preparation method of described water reducing agent powder is as follows,

[0101] Prepare HPEG monomer, ammonium persulfate, bottom water, material A and material B, wherein the mass ratio between HPEG monomer, ammonium persulfate and water is 400:3:240, and material A includes acrylic acid, acrylamide, methyl The mass ratio between sodium propylene sulfonate and water, acrylic acid, acrylamide, sodium methacrylene sulfonate and water is 36:10:5:70, wherein material B includes thioglycollate, thioglycolic acid and water. , The mass ratio between thiog...

Embodiment 2

[0124] The prefabricated mortar product special admixture of the present embodiment includes the following formulation components in parts by weight,

[0125] 10 parts of superplasticizer powder,

[0126] 30 parts of rubber powder,

[0127] 5 parts of retarder,

[0128] Defoamer 2 parts,

[0129] 60 parts of stimulating agent.

[0130] Among the above-mentioned special admixtures for assembled mortar products,

[0131] The preparation method of described water reducing agent powder is as follows,

[0132] Prepare HPEG monomer, ammonium persulfate, bottom water, material A and material B, wherein the mass ratio between HPEG monomer, ammonium persulfate and water is 400:3:240, and material A includes acrylic acid, acrylamide, methyl The mass ratio between sodium propylene sulfonate and water, acrylic acid, acrylamide, sodium methacrylene sulfonate and water is 36:10:5:70, wherein material B includes thioglycollate, thioglycolic acid and water. , The mass ratio between thio...

Embodiment 3

[0155] The prefabricated mortar product special admixture of the present embodiment includes the following formulation components in parts by weight,

[0156] In parts by weight, including the following formula components,

[0157] 5 parts of superplasticizer powder,

[0158] 30 parts of rubber powder,

[0159] 3 parts retarder,

[0160] Defoamer 2 parts,

[0161] 50 parts of stimulating agent.

[0162] Among the above-mentioned special admixtures for assembled mortar products,

[0163] The preparation method of described water reducing agent powder is as follows,

[0164]Prepare HPEG monomer, ammonium persulfate, bottom water, material A and material B, wherein the mass ratio between HPEG monomer, ammonium persulfate and water is 400:3:240, and material A includes acrylic acid, acrylamide, methyl The mass ratio between sodium propylene sulfonate and water, acrylic acid, acrylamide, sodium methacryl sulfonate and water is 36:10:5:70, wherein material B includes thioglyco...

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Abstract

The invention discloses a special admixture for assembled mortar products, which belongs to the technical field of mortar products. Among them, the special admixture for assembled mortar products, in parts by weight, includes the following formula components: water reducer powder: 5 parts-10 parts, rubber powder: 30 parts-35 parts, retarder: 3 parts-5 parts, disinfectant Foam agent: 2-5 parts, activator: 50-60 parts. The preparation method of the special admixture for assembled mortar products is as follows: select the following raw materials: water reducer powder, rubber powder, retarder, defoamer, activator, weigh the raw materials of the above corresponding quality, stir and mix for 120 minutes, pack into bags, That's it. After testing, the cement prepared with the admixture has excellent comprehensive properties. Specifically, after the admixture is mixed with P.O 42.5 cement, the performance parameters such as flexural strength, compressive strength, final setting time, and plastic time are all effectively improved.

Description

technical field [0001] The invention belongs to mortar products, and in particular relates to a special admixture for assembled mortar products. Background technique [0002] Now the construction site requires a kind of mortar, that is, to ensure that the mortar mixing machine can be operated for half an hour, and to ensure that the compressive strength reaches more than 20MPa and the flexural strength reaches more than 4MPa in two hours. Now the construction site uses rapid-hardening sulfoaluminate cement to achieve a rapid increase in strength, and steel fibers are added to solve the problem of flexural resistance. However, relying on sulfoaluminate cement and steel fibers to meet the requirements of compressive and flexural resistance has caused many problems in actual production. [0003] It is necessary to ensure that the mortar can be operated for half an hour, because sulphoaluminate cement is highly alkaline, and the existing polycarboxylate superplasticizers on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/32C08F283/06C08F220/06C08F220/56C08F228/02C04B103/22C04B103/30C04B103/50
CPCC04B40/0039C04B24/32C08F283/065C04B2103/302C04B2103/22C04B2103/50C04B2103/0068C04B2103/0045C04B18/22C04B14/047C04B22/16C04B22/147C04B24/14C04B24/02C04B24/06C04B14/042C04B18/08C04B12/04C04B22/148C08F220/06C08F220/56C08F228/02
Inventor 张春华马艳红凡扬蒋凌飞
Owner 河北恒誉伟业建材有限公司
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