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Composite mortar for masonry and whitewash and preparation method of composite mortar

A technology of mixing mortar and mixing device, which is applied in the field of mixed mortar for masonry and stucco, can solve the problems of secondary pollution, cannot cure secondary pollution, etc., and achieves the effect of protecting the environment, concise process steps, and satisfying ready-to-use effects.

Inactive Publication Date: 2013-04-03
常熟市华峰建筑有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this measure is only a superficial measure rather than a permanent cure, because no matter whether the aforementioned sediment is landfilled or disposed of in accordance with specific specifications, there is inevitably the risk of secondary pollution
Of course, compared with direct discharge, collecting and landfilling waste slurry or treating it according to specific specifications has a certain positive effect on reducing the environmental pollution level and pollution degree, but as long as the waste slurry cannot get a corresponding outlet, it cannot Eliminate secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A) Prepare the raw materials, weigh 1 part of slag portland cement with the brand name of 325, 8 parts of river sand with a particle size of 0.35-0.45 mm, that is, medium sand, and 0.42 parts of lime paste with a consistency of 115-125 mm. 0.42 parts of waste slurry and 1.2 parts of water to obtain raw materials, the waste slurry is produced in the wet grinding construction of the cast-in-place terrazzo floor and has a moisture content of 30% after being collected and filtered through a 200-mesh filter waste slurry, the water is river water, well water or tap water;

[0023] B) Mixing materials, put the raw materials obtained in step A) into a mortar mixer and mix them evenly. The mixing time is 3 minutes, and the rotation speed of the mortar mixer is 25n / min to obtain a mixed mortar for masonry and whitewashing. After testing, the mixed mortar The strength grade of the concrete is M7.5, so it is suitable for masonry.

Embodiment 2

[0025] A) Preparing raw materials, weighing 1 part of fly ash Portland cement with grade 325 and 5 parts of river sand with a particle size of 0.35-0.45 mm, produced by wet cutting, grinding and polishing of natural marble and 0.85 part of waste slurry and 1 part of water with a water content of 40% after being collected and filtered through a 50-mesh filter screen to obtain raw materials;

[0026] B) Mixing materials, put the raw materials obtained in step A) into a mortar mixer and mix for 4 minutes, and the rotation speed of the mortar mixer is 30n / min to obtain a mixed mortar for masonry and whitewashing. After testing, the strength grade of the mixed mortar is M5 , so it is suitable for being used as whitewash, and all the other are the same as the description to embodiment 1.

Embodiment 3

[0028] A) Prepare raw materials, weigh 1 part of composite portland cement (composite portland cement is composed of slag portland cement and fly ash portland cement with a weight ratio of 1:1, grade 325), 6.5 parts of river sand with a particle size of 0.4-0.5 mm, 0.3 parts of lime paste with a consistency of 115-125 mm, and 125 parts of terrazzo floor wet grinding construction and natural marble wet cutting and polishing 0.3 parts of waste slurry and 1.1 parts of water that are filtered by mesh screen and have a moisture content of 35%, obtain raw materials;

[0029] B) Mixing, put the raw materials obtained in step A) into the mortar mixer and mix for 2.5min, the speed of the mortar mixer is 30n / min, to obtain the mixed mortar for masonry and whitewashing, after testing, the strength grade is M7.5, All the other are the same as the description to embodiment 1.

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Abstract

The invention relates to composite mortar for masonry and whitewash and a preparation method of the composite mortar and belongs to the technical field of building materials and preparation thereof. The composite mortar consists of the following raw materials according to parts by weight: 1 part of cement, 5-8 parts of river sands, less than 0.45 part of lime paste, 0.3-0.85 part of waste slurry and 1-1.2 parts of water, wherein the waste slurry is produced by wet-process polishing construction of a cast-in-place terrazzo terrace, and / or produced by natural marble in wet-process cutting and polishing operations and filtered by 50-200-mesh filter materials. The preparation method comprises the following steps of: weighing the raw materials according to the parts by weight; putting the raw materials into a mixing device to be mixed, and controlling a mixing time and a mixing speed of the mixing device, thus obtaining the composite mortar for the masonry and the whitewash. Due to the reduction of a use level of the lime paste, resource is saved, the cost is lowered, and the strength of the composite mortar is guaranteed to reach a standard request of M5 or M7.5; the environment is protected; and the process step is succinct, and the requirements of instant-production and instant-use can be met.

Description

Technical field [0001] The invention is a field of building materials and its preparation technology. It specifically involves a mixed mortar for masonry and powder, and it also involves its preparation method. Background technique [0002] Mortar is a bonding substance for building masonry or powder. It is made of a certain percentage of river sand and tunnel materials with water mixing. Jacking materials such as cement, lime, and clay.The mortar has cement mortar, mixed mortar (also known as cement and ash mortar), lime mortar and clay mortar. Among them, the application of cement mortar and mixed mortar is much wider than lime mortar and clay mortar.Cement mortar is made of cement, sand, and water in a certain proportion, and is usually used for masonry, wall or floor in a humid environment or water; mixed mortar is mixed with proper blending materials in cement and / or lime mortarMade, mixing materials such as flour ash, diatom soil, etc., to save the amount of cement or lime ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C04B28/04
Inventor 陆耀斌须东平张建忠沈菊芳周健陆晓江周文英王建明曹革军张波陈妹红陈利忠陆健丁健郭蕴丹
Owner 常熟市华峰建筑有限责任公司
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