Composite isolation protective sand and preparation method

A composite and protective layer technology, which is applied in the field of composite isolation protective sand and its preparation, can solve the problems of high production energy consumption, low production efficiency, and high manufacturing cost, and achieve avoidance of secondary dust, high production efficiency, and production The effect of low energy consumption

Inactive Publication Date: 2021-05-28
王清娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main technical defects of natural mineral particles such as quartz sand include: poor adhesion with the bonding layer and post-cast concrete, poor isolation and protection effect on the bonding layer and high hardness, sharp edges and corners, easy to crus

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention relates to a compound isolation protection sand, which is a multi-layer cladding structure, which consists of aggregate, transition layer, functional shell layer and surface protection layer from the inside to the outside.

[0025] The aggregate is a mineral particle carrier, composed of one or more of marble, quartz stone, vermiculite, and white marble, and the size of the aggregate is 28 mesh.

[0026] The transition layer is a mixture of 3-aminopropyltriethoxysilane coupling agent and titanate coupling agent at a mass ratio of 1:1, with a thickness of 10 um.

[0027] The functional shell layer is composed of the following components by weight: 1 part of nano-zinc oxide, 1 part of whisker silicon, 10 parts of acrylate emulsion, 0.05 part of benzotriazole ultraviolet absorber, 5 parts of borax, polycarboxylate 0.1 parts of acid superplasticizer, 10 parts of titanium dioxide, 20 parts of Portland cement, and the thickness of the functional shell is 30um. ...

Embodiment 2

[0035] The invention relates to a compound isolation protection sand, which is a multi-layer cladding structure, which consists of aggregate, transition layer, functional shell layer and surface protection layer from the inside to the outside.

[0036] The aggregate is a mineral particle carrier, composed of one or more of marble, quartz stone, vermiculite and white marble, and the size of the aggregate is 80 mesh.

[0037] The transition layer is a mixture of 3-aminopropyltriethoxysilane coupling agent and titanate coupling agent at a mass ratio of 1:1, with a thickness of 15um.

[0038] The functional shell layer is composed of the following components by weight: 3 parts of nano-zinc oxide, 3 parts of whisker silicon, 20 parts of acrylate emulsion, 1 part of benzotriazole ultraviolet absorber, 10 parts of borax, polycarboxylate 0.5 parts of acid superplasticizer, 15 parts of titanium dioxide, 25 parts of Portland cement, and the thickness of the functional shell is 50um.

...

Embodiment 3

[0046] The invention relates to a compound isolation protection sand, which is a multi-layer cladding structure, which consists of aggregate, transition layer, functional shell layer and surface protection layer from the inside to the outside.

[0047] The aggregate is a mineral particle carrier, composed of one or more of marble, quartz stone, vermiculite, and white marble, and the size of the aggregate is 45 mesh.

[0048] The transition layer is a mixture of 3-aminopropyltriethoxysilane coupling agent and titanate coupling agent at a mass ratio of 1:1, with a thickness of 13um.

[0049] The functional shell layer is composed of the following components in parts by weight: 2 parts of nano-zinc oxide, 2 parts of whisker silicon, 15 parts of acrylate emulsion, 0.08 parts of benzotriazole ultraviolet absorber, 7 parts of borax, polycarboxylate 0.3 parts of acid superplasticizer, 12 parts of titanium dioxide, 22 parts of Portland cement, and the thickness of the functional shell i...

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Abstract

The invention discloses composite isolation protective sand which is of a multi-layer coating structure and sequentially comprises aggregate, a transition layer, a functional shell layer and a surface protective layer from inside to outside. The transition layer, the functional shell layer and the surface protective layer are arranged on the outer surfaces of the mineral particles, so that the problems that the natural mineral particles are poor in cohesiveness with a bonding layer and post-pouring concrete, the isolation protection effect on the bonding layer is poor, the hardness is high, edges and corners are clear, a main body reinforcing layer is prone to being rolled and damaged and the like can be effectively solved. The composite isolation protective sand is high in production efficiency and relatively low in production energy consumption, meanwhile, the composite isolation protective sand is endowed with excellent water resistance, weather resistance, aging resistance and ultraviolet resistance, and secondary dust is prevented from being generated in the transportation and use process.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a composite isolation protection sand and a preparation method thereof. Background technique [0002] Looking at domestic and foreign markets, the current basic structure of pre-paved waterproofing membranes includes: a main reinforcement layer, an adhesive layer, and a surface isolation protective layer. The layer includes natural mineral particles, artificial synthetic sand, etc. Common natural mineral particles include quartz sand, etc., while common artificial synthetic sand includes mullite sand, ceramic sand, corundum, etc. The main technical defects of natural mineral particles such as quartz sand include: poor adhesion to the bonding layer and post-cast concrete, poor isolation and protection effect on the bonding layer, high hardness, sharp edges and corners, easy to crush the main reinforcement layer, etc. The main technical defects of artificial synthetic sand such a...

Claims

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Application Information

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IPC IPC(8): C04B20/12C04B28/04C04B18/02C04B14/28C04B14/20C04B14/06
CPCC04B20/12C04B14/28C04B14/202C04B18/021C04B14/06C04B28/04
Inventor 王春义
Owner 王清娜
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