Method for preparing mortar

A mortar and cement technology, applied in the field of building material manufacturing, can solve problems such as damage, accelerated steel corrosion, and failure to reach the designed service life

Active Publication Date: 2014-04-30
南京易发新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the project, the basements, roofs, roads and bridges of many buildings did not reach the designed service life, and some projects were seriously damaged after only a few years of use and had to be repaired. The main reason is that the current waterproof materials and cement plus The agent generally contains Cl-,,,,, and K+ ions a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] A method for preparing mortar, characterized in that:

[0026] Weigh 282g of raw material cement, 18g of cement composite additives, 750g of sand, 4g of polypropylene fibers, and 3g of naphthalene-based water-reducing agent; put the above-mentioned raw materials into a conical double-screw mixer according to the proportion and stir evenly, and the stirring time is 50 minutes, and the stirring is carried out for 50 minutes. After the mortar is obtained;

[0027] The steps of the preparation method of the cement composite additive are:

[0028] Step (1): according to 30 parts of aluminum-oxygen clinker, 5 parts of calcined alumite, 1 part of zinc sulfate, 10 parts of dickite, 10 parts of attapulgite, 10 parts of fly ash, 1 part of zeolite powder, diatomite 2 parts, 2 parts of bentonite, 1 part of methyl cellulose, 0.5 part of sodium sulfite, 0.5 part of quicklime, and 0.2 part of calcium fluoride.

[0029] Step (2): grind 30 parts of aluminum-oxygen ...

Example Embodiment

[0033] Example 2

[0034] A method for preparing mortar, characterized in that:

[0035] Weigh 282g of raw material cement, 18g of cement composite additives, 750g of sand, 4g of polypropylene fibers, and 3g of naphthalene-based water-reducing agent; put the above-mentioned raw materials into a conical double-screw mixer according to the proportion and stir evenly, and the stirring time is 50 minutes, and the stirring is carried out for 50 minutes. After the mortar is obtained;

[0036] The steps of the preparation method of the cement composite additive are:

[0037] Step (1): According to 35 parts of aluminum oxide clinker, 10 parts of calcined alunite, 5 parts of zinc sulfate, 20 parts of dickite, 20 parts of attapulgite clay, 15 parts of fly ash, 5 parts of zeolite powder, diatomite 4 parts, 5 parts of bentonite, 2 parts of methyl cellulose, 1 part of sodium sulfite, 1 part of quicklime, and 0.5 part of calcium fluoride to prepare raw materials,

[0038] Step (2): grind...

Example Embodiment

[0042] Example 3

[0043] A method for preparing mortar, characterized in that:

[0044]Weigh 282g of raw material cement, 18g of cement composite additives, 750g of sand, 4g of polypropylene fibers, and 3g of naphthalene-based water-reducing agent; put the above-mentioned raw materials into a conical double-screw mixer according to the proportion and stir evenly, and the stirring time is 50 minutes, and the stirring is carried out for 50 minutes. After the mortar is obtained;

[0045] The steps of the preparation method of the cement composite additive are:

[0046] Step (1): According to 32 parts of aluminum-oxygen clinker, 7 parts of calcined alumite, 3 parts of zinc sulfate, 13 parts of dickite, 13 parts of attapulgite clay, 13 parts of fly ash, 3 parts of zeolite powder, diatomite 3 parts, 3 parts of bentonite, 1 part of methyl cellulose, 0.6 part of sodium sulfite, 0.6 part of quicklime, and 0.3 part of calcium fluoride.

[0047] Step (2): grind 32 parts of aluminum-o...

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PUM

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Abstract

The invention discloses a method for preparing mortar. The method is characterized by comprising the following steps: weighing raw materials including 282 g of cement, 18 g of a cement composite additive, 750 g of sand, 4 g of polypropylene fiber and 3 g of a naphthalene water reducer; according to the ratio, putting the above raw materials into a conical double-helix stirrer for uniformly stirring for 50 minutes to obtain the mortar. The mortar has the functions of efficiently preventing water and damp, preventing swelling, resisting cracking and permeating and the like and does not has a corrosive effect on steel bars.

Description

technical field [0001] The invention relates to a method for preparing mortar and belongs to the field of building material manufacturing. Background technique [0002] During the project, the basements, roofs, roads and bridges of many buildings did not reach the designed service life, and some projects were seriously damaged after only a few years of use and had to be repaired. The main reason is that the current waterproof materials and cement plus The agent generally contains Cl-,,,,, and K+ ions are too heavy, and when added to the cement, it reacts with the active silica in the concrete to form an alkali silicate gel and cause the concrete to expand and crack. This is a common problem in engineering. Alkali-aggregate reaction also accelerates the corrosion of steel bars, resulting in cracking and water seepage of building materials. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B24/38C04B22/14
Inventor 黄小仙
Owner 南京易发新材料科技有限公司
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