Recycled aggregate special mortar preparation method

A technology for recycling aggregate and mortar, applied in the field of building materials and building materials, can solve the problems of wasting natural resources, increasing waste accumulation, unfavorable environmental greening, etc., saving labor, time, labor, extra costs, protecting natural resources, and saving land resources. Effect

Inactive Publication Date: 2012-10-03
SHENZHEN WEILUN BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Whether it is quartz sand, white cement or black cement, they are all made of natural materials. With the rapid development of urban construction, infrastructure and decoration are also expanding rapidly, and the demand for special mortar (putty) is also increasing. , so that the raw materials based on natural materials such as quartz sand, white cement, and black cement are also increasing day by day. After all, natural resources are limited, and at the same time, a lot of manpower and material resources need to be invested, which has formed a great impact on the rapid growth of construction. Contradictions, coupled with packaging, transportation, storage, labor and other factors, will inevitably lead to rising prices
At the same time, on the other hand, the amount of demolition of old buildings in cities is increasing. Of course, there are more and more wastes after demolition, and more and more land has been occupied by centralized stacking.
The piles of garbage from existing demo

Method used

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  • Recycled aggregate special mortar preparation method
  • Recycled aggregate special mortar preparation method
  • Recycled aggregate special mortar preparation method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

Specific embodiment one

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings of the specification. As shown in the accompanying drawings:

[0039] A preparation method of recycled aggregate special mortar:

[0040] (1) Preparation of recycled aggregate: use waste concrete, waste bricks, and waste sand ash construction waste less than 690mm as raw materials, determine the quantity according to needs, crush and dry the moisture content less than or equal to 0.5%, then proceed to grade screening. In the grade screening process, magnets are used to remove metal, and wood chips, plastics and debris are removed in a way of small specific gravity, so as to prepare recycled aggregates with particles of 0.075-0.15mm, 0.15-0.3mm, and 0.3-0.6mm, respectively. Recycled aggregates are stored for use according to different particle sizes;

[0041] (2) Preparation of ordinary putty for interior walls: mix 120 kg of cement type 42.5 white ce...

Example Embodiment

Specific embodiment two

[0061] Implemented according to specific implementation mode 1, except that two more common putties were prepared for internal walls, one more was prepared for high-hardness and washing-resistant putty for internal walls and one for external wall putty. The specific ratio and quantity are as follows :

[0062]

[0063] Also received the expected good results.

Example Embodiment

Specific embodiment three

[0064] Implemented on the basis of the implementation of specific embodiments one and two, but: based on specific embodiments one and two, and on their respective basis, respectively, reduce 1, 2, 5, 8, 10, 15, 20, 25 , 30, 35, 40, 45, and 50 times were implemented; also expanded by 1, 2, 5, 8, 10, 15, 20, 25, 30, 35, 40, 45, 50 times on their respective basis Carried out; thus obtained the principle test, small test, laboratory test, expanded test, medium test, large-scale test, production test and multiple repeated tests of various scales, all obtained the expected good results, so that The invention has a solid foundation from principle to implementation, creating good conditions for practical application and laying a solid foundation for widespread application.

[0065] After the preparation of the present invention was completed, a trial evaluation was carried out. In the trial evaluation, experts in the industry agreed that: the successful develop...

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Abstract

The invention relates to a recycled aggregate special mortar preparation method and relates to the field of building materials. The method includes the steps: using building wastes such as waste concrete, waste bricks and waste lime-sand mortar which are smaller than 690mm in length as raw materials, determining the quantity of the raw materials as required, crushing and drying to enable moisture to be not more than 0.5% prior to gradational sieving, removing metal, wood dust, plastics and sundries during gradational sieving so that recycled aggregates with the grain sizes of 0.075-0.15mm, 0.15-0.3mm and 0.3-0.6mm are prepared, and using the recycled aggregates to prepare special mortar series including putty for interior and exterior walls, high-hardness and washable putty for interior walls, anti-cracking impermeable elastic putty for exterior walls, dry powder ceramic simulating coating putty, high-hardness washable paste putty, interior wall polishing putty, anti-cracking putty for exterior walls, exterior wall ceramic tile cementing agents, gypsum jointing agents, ceramic tile cementing agents, vetrified tile and mosaic tile cementing agents, marble and thermal-insulation board cementing agents, external thermal insulation cementing mortar and polyphenyl particle rubber powder composite thermal mortar. The recycled aggregate special mortar is used as building raw materials. By the recycled aggregate special mortar preparation method, natural resources are protected, wastes are turned to wealth, labor and time are saved, cost is low, and the requirements of low-carbon production and low-carbon life are met.

Description

technical field [0001] The invention relates to the preparation method of recycled aggregate special mortar, which relates to the technical field of building materials; in particular, it relates to the technical field of building material raw materials; in particular, it relates to the technical field of the preparation method of recycled aggregate special mortar. Background technique [0002] As far as building materials and building material raw materials are concerned, everyone is no stranger to special mortar (putty), ready-mixed mortar, concrete, aerated concrete blocks, and urban pavement bricks, especially special mortar used in construction. Mortar (putty) mostly uses 0.15-0.3mm quartz sand, white cement (for making white putty), and black cement (for making black putty) as basic raw materials. Whether it is quartz sand, white cement or black cement, they are all made of natural materials. With the rapid development of urban construction, infrastructure and decoratio...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B18/16C09D5/34
CPCY02W30/91
Inventor 孙伟沦王畴峰
Owner SHENZHEN WEILUN BUILDING MATERIALS
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