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Rubber aggregate dry-mixed mortar

A technology of rubber aggregate and dry powder mortar, which is applied in the direction of sustainable waste treatment, solid waste management, and climate sustainability. It can solve the problems of thick plaster without cracks, no heat preservation effect, and insufficient flexibility. Achieve the effects of easy operation, improved flexibility and low thermal conductivity

Inactive Publication Date: 2008-12-17
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current dry powder mortar products cannot reach the target of thick plaster without cracks, the flexibility is not enough, the price is high, and there is no heat preservation effect, and the effect of energy saving cannot be achieved.

Method used

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  • Rubber aggregate dry-mixed mortar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The mass ratio of each component is as follows:

[0024] Cement: 1, sand: 1.75, water: 0.6, rubber aggregate: 0.27, methyl cellulose ether: 0, wood fiber: 0.018, redispersible rubber powder: 0.055.

[0025] Accurately weigh rubber aggregate, sand, redispersible rubber powder, wood fiber and methyl cellulose ether according to the above mixing ratio; after mixing them evenly, add water with a specified mass ratio and stir, and it can be used after stirring evenly. The properties of the prepared rubber aggregate dry powder mortar were tested, and the test results are shown in Table 1.

Embodiment 2

[0027] The mass ratio of each component is as follows:

[0028] Cement: 1, sand: 1.25, water: 0.7, rubber aggregate: 0.46, methyl cellulose ether: 0.008, wood fiber: 0.015, redispersible rubber powder: 0.04.

[0029] Accurately weigh rubber aggregate, sand, redispersible rubber powder, wood fiber and methyl cellulose ether according to the above mixing ratio; after mixing them evenly, add water with a specified mass ratio and stir, and it can be used after stirring evenly. The properties of the prepared rubber aggregate dry powder mortar were tested, and the test results are shown in Table 1.

Embodiment 3

[0031] The mass ratio of each component is as follows:

[0032] Cement: 1, sand: 0.75, water: 0.8, rubber aggregate: 0.65, methyl cellulose ether: 0.012, wood fiber: 0, redispersible rubber powder: 0.12.

[0033] Accurately weigh rubber aggregate, sand, redispersible rubber powder, wood fiber and methyl cellulose ether according to the above mixing ratio; after mixing them evenly, add water with a specified mass ratio and stir, and it can be used after stirring evenly. The properties of the prepared rubber aggregate dry powder mortar were tested, and the test results are shown in Table 1.

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Abstract

The invention relates to a rubber aggregate dry-powder mortar, belonging to the technical field of novel construction material. In the construction energy-conserving field, the outer-wall external insulation technique is adopted as the main technique for the outer envelope insulation of energy-conserving constructions is a common consensus, but the system requires a large energy and sources. The invention aims at exploiting a second source technique, namely, the waste rubber aggregate dry-powder mortar which is formed by evenly mixing waste rubber aggregate, cement, sand, RPP, wood fiber and methyl cellulose, and the matching proportions of the materials by weight portion are as follows: 1 portion of cement, 0.25 to 1.75 portions of sand, 0.6 to 0.9 portion of water, 0.04 to 0.15 portion of RPP, 0 to 0.018 portion of wood fiber and 0 to 0.016 portion of methyl cellulose and 0.27 to 0.83 portion of rubber aggregate. The invention has excellent work capability and construction capability and not only can reach better insulation effect but can realize better economic benefit, and the construction energy-conserving effect is distinct.

Description

technical field [0001] The invention belongs to the technical field of new building materials. Background technique [0002] In the field of building energy conservation, external wall insulation technology has become a consensus as the main technology for building energy-saving envelope structure insulation, but its system products consume a lot of energy and resources. The development and utilization of the second resource technology will become an important direction for the development of external wall thermal insulation technology. At present, with the rapid development of my country's automobile industry, more and more waste tires are produced. Because waste tires are difficult to degrade and easy to burn, they accumulate and occupy a large amount of land, forming safety hazards and causing serious environmental pollution. my country is the second largest tire producer in the world. In 2007, the number of waste tires reached 140 million, and it will increase at an ann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B18/22C04B14/06C04B24/38C04B18/26
CPCC04B28/02C04B2111/00439C04B2111/28C04B2111/50Y02W30/91C04B14/06C04B18/26C04B20/00C04B24/26C04B24/383C04B40/0608C04B2103/0057C04B18/22
Inventor 李悦王敏韩兆兴吴玉生
Owner BEIJING UNIV OF TECH
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