Rubber reinforced cement functional composite material and preparation method thereof

A composite material, rubber reinforced technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of low mechanical strength, insufficient anti-aging ability, etc., achieve high impact resistance, and have broad application prospects Effect

Inactive Publication Date: 2010-10-13
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, rubber is filled into cement mortar as an organic polymer material. Due to the large difference in the surface elastic modulus, thermal conductivity, mass density, and damping coefficient of organic polymer rubber and inorganic cement, cement concrete materials, etc. , the interface with the mortar matrix is ​​fragile, resulting in the existing rubber-concrete composites having disadvantages such as low mechanical strength and insufficient anti-aging ability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, the preparation of rubber reinforced cement functional composite material

[0030] Specimen target density: 1500kg / m 3 , Weight: 144 grams, water-cement ratio: 0.25, rubber particle size: 1mm, pressing pressure: 5MPa.

[0031] Raw materials: the ratio of cement and rubber weight and number is 90: 10, wherein, cement 129.6 grams, rubber granule (derived from waste rubber tires) 14.4 grams, coupling agent polyisocyanate (polyether having added polyisocyanate weight 5% as kneading Chain agent, purchased from Yantai Wanhua Group) 2.88 grams (20% of the rubber particle weight), 32.4 grams of water. The cement is made of ordinary Portland cement with a label of 42.5.

[0032] Preparation process: 1) Compounding: Add 10% acetone to polyisocyanate-polyether and mix well; 2) Sizing: Pass the prepared coupling agent through a high-pressure pump gun, and evenly spray the coupling agent on the surface of the rubber particles , aged for half an hour; 3) mixing: the ...

Embodiment 2

[0034] Embodiment 2, the preparation of rubber reinforced cement functional composite material

[0035] Specimen target density: 1500kg / m 3 , Weight: 144 grams, water-cement ratio: 0.20, rubber powder particle size: 80 mesh, pressing pressure: 5MPa.

[0036] Raw material: cement / rubber weight ratio is 65 / 35, and wherein, cement 93.6 grams, rubber powder (derived from waste and old rubber products) 50.4 grams, coupling agent epoxy resin (add the curing agent imidazoline of epoxy resin weight 20% and Epoxy resin weight 3% polyether as toughening agent, purchased from Tianjin Tongxin Chemical Factory) 20.16 grams (40% of rubber particle weight), water 18.72 grams. The cement is Portland cement with R-type label 52.5.

[0037] Preparation process: the same preparation process as in Example 1, except that organic solvents may not be used when compounding the glue.

[0038] Detected in the same way as in Example 1, the product of this example is a plate-shaped rubber reinforced c...

Embodiment 3

[0039] Embodiment 3, the preparation of rubber reinforced cement mortar functional composite material

[0040] Specimen target density: 1500kg / m 3 , weight: 144 grams, water-cement ratio: 0.25, rubber particles (derived from waste rubber tires) particle size 5mm, rubber powder (derived from waste rubber products) 80 mesh, pressing pressure: 7MPa.

[0041] Raw material: cement mortar / rubber weight ratio is 75 / 25, and wherein, cement mortar 108 grams, rubber mixing particle (rubber particle and rubber powder mix randomly) 36 grams, coupling agent phenol modified resorcinol (add 25% Curing agent Prefere 5808, purchased from Beijing Taier Company) 14.4 grams (40% of the rubber particle weight), water 27 grams. Ordinary Portland cement mortar (cement 65%, sand 10%, water 25%) is used for cement.

[0042] Preparation process: the same preparation process as in Example 1, except that organic solvents may not be used when compounding the glue.

[0043] Detected in the same way as i...

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Abstract

The invention discloses a rubber reinforced cement functional composite material and a preparation method thereof. The rubber reinforced cement functional composite material is prepared from waste rubber and cement or cement mortars by the following steps of: applying coupling adhesives to surfaces of waste rubber grains and / or powder by using coupling agents; mixing the waste rubber grains and / or powder with the cement or the cement mortars; adding water into the rubber-cement mixed materials for uniform stirring, and performing pavement, pressing, demoulding and maintaining to obtain the functional composite material product having a high mechanical strength and endurance. The composite material has the characteristics of noise reduction, sound isolation, high impact resistance, damping vibration attenuation, wear resistance, static resistance, water resistance and the like, has the advantages of insulation, environmental protection and the like and can be used in the field of functional materials, such as buildings, roads, railways, tunnels, noise barriers and the like. The functional composite material and the method thereof also provide a new way for solving the global problem of 'black pollution' of increasing waste tyres and have a wide application prospect.

Description

technical field [0001] The invention relates to a new type of building material, which belongs to the field of cement-based composite materials, in particular to a rubber-reinforced cement functional composite material which can be used in the field of functional materials such as buildings, roads, railways, tunnels, and sound insulation barriers, and a preparation method thereof . Background technique [0002] my country is a big country in the cement industry. As one of the pillars of my country's main basic raw material industry, the cement industry plays a pivotal role in the sustainable development of the national economy. With the development of science and technology and the enhancement of people's awareness of environmental protection, the sustainable development of the cement industry has been paid more and more attention. Modern buildings, highways, railways and other fields have brought new challenges to cement-based composite materials, requiring cement-based co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B18/22
CPCC04B2111/20C04B2111/0075C04B28/02Y02W30/91C04B18/22C04B24/02C04B24/121C04B24/125C04B24/281C04B24/32C04B40/0071C04B2103/30
Inventor 姚燕崔琪赵君
Owner CHINA BUILDING MATERIALS ACAD
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