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Compound environment friendly cement mortar and preparation method

A cement mortar and environment-friendly technology, applied in the field of aerated concrete particle production, can solve the problems of slow solidification and hardening speed, poor bonding performance, hollow bulging, etc., and achieve reasonable cost, high compressive strength and good crack resistance. Effect

Inactive Publication Date: 2018-08-28
安徽嘉中金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main components of ordinary air-entrained concrete particle mortar are air-entrained concrete particle and sand. Traditional air-entrained concrete particle mortar has shortcomings such as cracks, hollowing, and poor bonding performance as a plastering material. Secondly, the solidification and hardening speed is slow.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] A preparation method of a composite environment-friendly cement mortar, comprising the steps of:

[0028] S1: Weigh a certain amount of 85-100 parts of air-entrained concrete particles, 20-30 parts of waste straw, 10-20 parts of polypropylene fiber, 10-20 parts of perlite powder and 15-20 parts of raw cement and add them to the mixer. Stir at 25-35°C for 15-25min;

[0029] S2: Then weigh 20-35 parts of styrene-butadiene rubber emulsion, 15-30 parts of nano ceramics, 10-15 parts of modified polymer rubber powder and 10-15 parts of sodium thiosulfate and pour them into the pulverizer for grinding 25-35min; heat to 300-400°C, keep warm for 1.5-2h to obtain high-temperature powder;

[0030] S3: Add the high-temperature powder obtained in step S2 into the mixer and mix and stir for 10-20 minutes, heat to 35-50°C, add 20-35 parts of early strength agent, 15-20 parts of defoaming agent, and 5-10 parts of anti-seepage agent 6-12 parts of water and 6-12 parts of water, continu...

Embodiment 1

[0032] A preparation method of a composite environment-friendly cement mortar, comprising the steps of:

[0033] S1: Weigh a certain amount of 89 parts of air-entrained concrete particles, 25 parts of waste straw, 15 parts of polypropylene fiber, 15 parts of perlite powder and 18 parts of raw cement, add them to the mixer, and stir at a temperature of 29 ° C for 19 minutes;

[0034] S2: Weigh 28 parts of styrene-butadiene rubber emulsion, 19 parts of nano-ceramics, 13 parts of modified polymer rubber powder and 13 parts of sodium thiosulfate and pour them into the pulverizer for grinding for 29 minutes; heat to 350 ° C, keep warm 1.8h, get high temperature powder;

[0035] S3: Add the high-temperature powder obtained in step S2 into the mixer and mix for 15 minutes, heat to 38°C, add 27 parts of early strength agent, 18 parts of defoamer, 6 parts of impermeable agent and 8 parts of water and continue stirring, stirring and mixing Then heat to 60°C and continue to stir for 0.9...

Embodiment 2

[0037] A preparation method of a composite environment-friendly cement mortar, comprising the steps of:

[0038] S1: Weigh a certain amount of 85 parts of air-entrained concrete particles, 20 parts of waste straw, 10 parts of polypropylene fiber, 10 parts of perlite powder and 15 parts of raw cement, add them to the mixer, and stir at a temperature of 25 ° C for 15 minutes;

[0039]S2: Weigh 20 parts of styrene-butadiene rubber emulsion, 15 parts of nano-ceramics, 10 parts of modified polymer rubber powder and 10 parts of sodium thiosulfate and pour them into the pulverizer for grinding for 25 minutes; heat to 300 ° C, keep warm 1.5h, get high temperature powder;

[0040] S3: Add the high-temperature powder obtained in step S2 into the mixer and mix for 10 minutes, heat to 35°C, add 20 parts of early strength agent, 15 parts of defoamer, 5 parts of impermeable agent and 6 parts of water and continue stirring, stirring and mixing Then heat to 60°C and continue to stir for 0.5h...

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PUM

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Abstract

The invention discloses compound environment friendly cement mortar and a preparation method. The cement mortar is prepared from, by weight, 85-100 parts of aerated concrete particles, 20-35 parts ofstyrene butadiene rubber emulsion, 20-30 parts of waste straws, 15-30 parts of nanophase ceramics, 10-20 parts of polypropylene fibers, 10-15 parts of modified polymer rubber powder, 20-35 parts of early strength agent, 10-20 parts of crushed crude pearlite, 10-15 parts of sodium thiosulfate, 15-20 parts of raw material cement, 15-20 parts of antifoaming agent, 5-10 pats of anti-permeability agentand 6-12 parts of water. According to the above matching, the early strength agent, the antifoaming agent and the anti-permeability agent are introduced on the aerated concrete particle mortar to improve the adhesive property such as aerated concrete particle mortar, better anti-permeability, crack resistance, impact resistance, resistance to freezing and thawing and the like are achieved, the application is convenient, the performance is reliable, the method has the advantages that the cost is reasonable, the construction is simple, and the soundproofing effect is significantly improved.

Description

technical field [0001] The invention relates to the technical field of making air-entrained concrete particles, in particular to a composite environment-friendly cement mortar and a preparation method thereof. Background technique [0002] The mixture of air-entrained concrete particles, sand and water is called air-entrained concrete particle mortar. It is used in construction projects and other places, such as building houses. The main components of ordinary air-entrained concrete particle mortar are air-entrained concrete particles and sand. The bonding force of the combination of air-entrained concrete particles and sand is also quite strong, but with the influence of dry and excessively humid environments, it will affect the air-entrained concrete. Adhesion of particle mortar. [0003] Air-entrained concrete particles are widely used in the field of construction engineering as a hydraulic cementitious material. Its main characteristic is its plasticity after adding ...

Claims

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Application Information

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IPC IPC(8): C04B28/02
CPCC04B28/02C04B2111/00508C04B18/027C04B18/24C04B16/0633C04B14/18C04B24/26C04B18/023C04B2103/0045C04B24/14C04B2103/0068C04B2103/50C04B18/16
Inventor 张如才
Owner 安徽嘉中金属材料有限公司