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A special cement for waterproof mortar and its preparation method

A waterproof mortar and cement technology, applied in cement-based mortar production technology and comprehensive utilization of industrial solid waste, cement field, can solve the problems of cement heat not being dissipated in time, high cement temperature after grinding, achieve good application prospects, improve Early strength and the effect of improving construction efficiency

Active Publication Date: 2019-12-24
王紫娴 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the traditional cement production method, the temperature of the cement out of the mill 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

Method used

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  • A special cement for waterproof mortar and its preparation method
  • A special cement for waterproof mortar and its preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0040] A special cement for waterproof mortar, which is composed of the following raw materials: 0.30 parts of clinker, 0.04 parts of industrial side gypsum, 0.0588 parts of limestone, 0.0002 parts of grinding aid (liquid), 0.001 parts of composite waterproofing agent, and 0.40 parts of granulated blast furnace slag parts, fly ash 0.12 parts, silico-manganese slag (inactive mixed material) 0.08 parts. Grinding aid (liquid) uses 1,4-dihydroxyethylpiperazine stock solution, composite waterproofing agent uses organic silicon waterproofing agent (liquid), and the components and raw materials used meet the relevant standards and the aforementioned requirements.

[0041] A preparation method of special cement for waterproof mortar, the specific steps are as follows:

[0042] Step 1: Select the above raw materials, take the measures of flat laying, vertical cutting and pre-homogenization, and put them into the clinker warehouse, gypsum warehouse, and multiple warehouses of different ...

Embodiment 2

[0048] A special cement for waterproof mortar, which is composed of the following raw materials: 0.36 parts of clinker, 0.07 parts of gypsum, 0.05 parts of limestone, 0.001 parts of grinding aid (liquid), 0.03 parts of composite waterproofing agent, 0.005 parts of early strength agent, 0.004 parts of water reducer, 0.30 parts of fly ash, 0.10 parts of slag (volcanic ash mixed material), 0.08 parts of kiln dust (other waste residue). The grinding aid (liquid) is compounded by 1,4 dihydroxyethylpiperazine and ethylene glycol, the composite waterproofing agent is made of hard fatty acid calcium water reducer, and the early strength agent is made of 1,4-dihydroxyisopropylpiperazine Oxyzine and triethanolamine are compounded, and the composite water reducer uses polycarboxylate water reducer, and the component materials used meet the relevant standards and the aforementioned requirements.

[0049] A preparation method of special cement for waterproof mortar, the specific steps are ...

Embodiment 3

[0056] A special cement for waterproof mortar, which is composed of the following raw materials: 0.50 parts of clinker, 0.055 parts of anhydrite, 0.30 parts of limestone, 0.005 parts of grinding aid (powder), 0.03 parts of composite waterproofing agent (powder), early strength agent 0.01 part, 0.02 part of composite water reducer (powder), 0.05 part of fly ash, 0.03 part of slag (volcanic ash mixed material). The grinding aid (powder) is compounded by 1,4-dihydroxyethylpiperazine and sodium thiocyanate, the composite waterproofing agent is made of hard calcium fatty acid, and the early strength agent is made of 1,4-dihydroxyisopropylpiperazine and acetic acid Calcium compound, composite superplasticizer uses polycarboxylate superplasticizer, and the component materials used meet the relevant standards and the aforementioned requirements.

[0057] A preparation method of special cement for waterproof mortar, the specific steps are as follows:

[0058] Step 1: Select the above ...

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Abstract

The invention discloses cement special for waterproof mortar. The cement is prepared from the following raw materials: clinker, gypsum, limestone, a grinding aid and a modifying component, and furtherfrom one or more active or nonactive mixed materials comprising granulated blast furnace slag, slag powder, cinerite and flyash. And other residues are allowed to be mixed in to replace active mixedmaterials. The invention also discloses a preparation method of the cement special for waterproof mortar, and the raw materials have a lot of sources; in terms of the problem that temperature of cement is high and thus difficult for being mixed with the modifying component in an existing cement production technology, a cement cooling method and a cement cooling device are combined; in the design,a secondary batching, stirring and homogenizing system is adopted, so that technological conditions for adding the modifying component and preparing various mortar are achieved; when mortar is stirred, no admixture is added, so that the homogeneous problem of a gelatinizing material system in the mortar is alleviated and various performance and construction efficiency of the mortar are improved.

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 waterproof 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 cementitious material for preparing cement-based mortar in China is composed or mixed with two parts, that is, a part of admixture is added when preparing cement; when producing ready-mixed mortar or mixing mortar on site, a large amount of mineral powder, fly ash, Limestone powder, filler powder and other admixtures. On the other hand, market application and engineering quality put forward refined, diversified and differentiated requirements for cement-based mortar....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/26C04B7/28C04B7/36C04B7/38C04B7/47
CPCY02P40/10
Inventor 王紫娴冷发光宋笑谭春桥周永祥黄忠卫丁美荣王祖琦黄维瑶宋怡菲
Owner 王紫娴
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