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A kind of special cement for masonry mortar and preparation method thereof

A technology for preparing masonry mortar and cement, applied in cement production and other directions, can solve the problems of affecting the functional cement compatibility of admixtures, not being able to dissipate cement heat in time, and high temperature of grinding cement, achieving good application prospects and promoting The effect of energy saving, consumption reduction, emission reduction, waste reduction, and increased adhesion

Active Publication Date: 2020-01-31
王紫娴 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the traditional cement production method, the temperature of the cement after grinding is as high as 100-120 ℃, and the cement is in a closed storage and transportation facility, so the heat of the cement cannot be dissipated in time. ), will change the molecular structure, seriously affect the function of some admixtures and the compatibility with cement

Method used

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  • A kind of special cement for masonry mortar and preparation method thereof
  • A kind of special cement for masonry mortar and preparation method thereof

Examples

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Effect test

Embodiment 1

[0042] A special cement for masonry mortar, which is composed of the following raw materials: 0.15 parts of clinker, 0.04 parts of gypsum, 0.10 parts of limestone, 0.0002 parts of grinding aid (liquid), 0.40 parts of granulated blast furnace slag, silico-manganese slag (other Waste slag) 0.08 part, fly ash 0.20 part, slag (volcanic ash material) 0.02 part, early strength agent 0.001 part, redispersible latex powder 0.0088 part, grinding aid (liquid) uses 1,4-dihydroxyethylpiper The oxazine stock solution and the early strength agent use 1,4-dihydroxyisopropylpiperazine and triethanolamine compound, and the redispersible latex powder uses ethylene-vinyl acetate copolymer. The raw materials used for the components meet the relevant standards and the aforementioned requirements.

[0043] A preparation method of special cement for masonry mortar, the specific steps are as follows:

[0044] Step 1: Select the above raw materials, take the measures of flat vertical cutting and pre-h...

Embodiment 2

[0050] A special cement for masonry mortar, which is composed of the following raw materials: 0.22 parts of clinker, 0.08 parts of gypsum, 0.2765 parts of limestone, 0.001 parts of grinding aid (liquid), 0.30 parts of fly ash, waste rock (other waste residue) 0.08 part and 0.0415 part of slag (volcanic ash mixed material), 0.001 part of early strength agent. Grinding aid (liquid) is compounded with 1,4-dihydroxyethylpiperazine and ethylene glycol, cellulose ether is hydroxypropyl methylcellulose ether, redispersible latex powder is ethylene-vinyl acetate copolymer, The air-entraining agent uses triisopropanolamine, and the early strength agent uses 1,4-dihydroxyisopropylpiperazine compounded with calcium acetate. The raw materials of the components used meet the relevant standards and the aforementioned requirements.

[0051] A preparation method of special cement for masonry mortar, the specific steps are as follows:

[0052] Step 1: Select the above raw materials, take the ...

Embodiment 3

[0058] A special cement for masonry mortar, which is composed of the following raw materials: 0.40 parts of clinker, 0.0685 parts of anhydrite, 0.35 parts of limestone, 0.005 parts of grinding aid (powder), 0.01 part of early strength agent, and 0.005 parts of cellulose ether 0.04 parts of redispersible latex powder and 0.0015 parts of air-entraining agent, 0.12 parts of slag (pozzolanic mixed material), grinding aid (powder) consisting of 1,4-dihydroxyethylpiperazine and sodium thiocyanate For compounding, use hydroxypropyl methylcellulose ether for cellulose ether, use ethylene-vinyl acetate copolymer for redispersible latex powder, use sodium dodecylbenzenesulfonate as air-entraining agent, and use 1,4- Dihydroxyisopropylpiperazine and calcium acetate are compounded, and the component raw materials used meet the relevant standards and the aforementioned requirements.

[0059] A preparation method of special cement for masonry mortar, the specific steps are as follows:

[0...

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Abstract

A special cement for masonry mortar comprises the following raw materials in proportion: clinker, gypsum, limestone, grinding aid and modifying component, and also comprises one or more of active or inactive mixtures including granulated blast furnace slag, granulated blast furnace slag powder, pozzolanic mixture and fly ash and other waste slag is allowed to replace the active mixture. The invention also discloses a preparation method of a special cement for masonry mortar, and a secondary batching mixing and homogenizing system is adopted in the design. The method has a wide source of raw materials and relates to the field of cement mortar. The homogeneity of cementitious material system in mortar is improved and the properties and construction efficiency of mortar are improved without adding admixtures and additives when the special cement for masonry mortar is used to prepare masonry mortar.

Description

technical field [0001] The invention relates to the fields of cement and cement-based mortar production technology and comprehensive utilization of industrial solid waste, in particular to a special cement for masonry mortar and a preparation method thereof. Background technique [0002] Cement-based mortar is a multi-component material. Adding admixtures can improve the performance of the mortar and make full use of waste residue, which is conducive to the realization of green manufacturing. At present, the admixture component in the cementitious material for preparing cement-based mortar in China is composed of or mixed with two parts, that is, one part is added when the cement is prepared; when the ready-mixed mortar is produced or the mortar is mixed on site, a large amount of mineral powder, Fly ash, limestone powder, and filler micropowder admixtures. On the other hand, market application and engineering quality put forward refined, diversified and differentiated requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/26C04B7/28C04B7/24C04B7/19C04B7/36C04B7/52
CPCY02P40/10
Inventor 李有伟冷发光黄忠卫周永祥宋笑丁美荣王祖琦蔡炳煌王紫娴宋怡菲
Owner 王紫娴
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