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High-ductility light aggregate concrete and preparation method thereof

A lightweight aggregate concrete and ductility technology, which is applied in the field of high ductility lightweight aggregate concrete and its preparation, can solve the problems of poor thermal insulation performance of solid clay bricks, large amount of bricks used in brick-concrete structures, and adverse environmental effects. Achieve the effects of low cost, fine material selection and strong bearing capacity

Inactive Publication Date: 2018-06-22
张宇涵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the past, civil buildings in our country have always been dominated by brick-concrete structures. The brick-concrete structure uses a huge amount of bricks, which consumes a lot of soil for farming and the process of firing clay bricks consumes a lot of energy, which has a negative impact on the environment.
In addition, solid clay bricks have poor thermal insulation performance, which greatly increases the annual heating energy consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A kind of high ductility lightweight aggregate concrete described in this embodiment, the raw materials include by weight: 90 parts of cement, 30 parts of silicon powder, 8 parts of superfine powder of water quenching slag, 5 parts of EPS particles, 2 parts of wood fiber 4 parts, 4 parts of polytetrafluoroethylene, 2 parts of blowing agent, 350 parts of water.

[0017] Its preparation method comprises the following steps:

[0018] (1) After mixing the EPS particles and PTFE, heat it to 135°C, take it out, cool it and roll it into pieces;

[0019] (2) Put the mixture of step (1), half of the water, silicon powder, and foaming agent into the mixing tank and stir for 25 minutes;

[0020] (3) Put the cement, water-quenched slag superfine powder and the remaining water and wood fiber into the mixing tank for 15 minutes;

[0021] (4) Transport the uniformly mixed lightweight concrete to the site or precast workshop for pouring.

Embodiment 2

[0023] A kind of high ductility lightweight aggregate concrete described in this embodiment, the raw materials include by weight: 80 parts of cement, 50 parts of silicon powder, 5 parts of superfine powder of water quenching slag, 8 parts of EPS particles, 1 part of wood fiber Parts, 6 parts of polytetrafluoroethylene, 1 part of blowing agent, 400 parts of water.

[0024] Its preparation method comprises the following steps:

[0025] (1) After mixing the EPS particles and PTFE, heat it to 125°C, take it out, cool it and roll it into pieces;

[0026] (2) Put the mixture of step (1), half of the water, silicon powder, and foaming agent into the mixing tank and stir for 30 minutes;

[0027] (3) Then put the cement, water-quenched slag superfine powder and the remaining water and wood fiber into the mixing tank and mix for 10 minutes;

[0028] (4) Transport the uniformly mixed lightweight concrete to the site or precast workshop for pouring.

Embodiment 3

[0030] A kind of high ductility lightweight aggregate concrete described in this embodiment, the raw materials include by weight: 100 parts of cement, 20 parts of silicon powder, 10 parts of water-quenched slag superfine powder, 3 parts of EPS particles, 2 parts of wood fiber 2 parts, 2 parts of polytetrafluoroethylene, 3 parts of blowing agent, 300 parts of water.

[0031] Its preparation method comprises the following steps:

[0032] (1) After mixing the EPS particles and PTFE, heat it to 150°C, take it out, cool it and roll it into pieces;

[0033] (2) Put the mixture of step (1), half of the water, silicon powder and foaming agent into the mixing tank and stir for 20 minutes;

[0034] (3) Put the cement, water-quenched slag superfine powder and the remaining water and wood fiber into the mixing tank for 20 minutes;

[0035] (4) Transport the uniformly mixed lightweight concrete to the site or precast workshop for pouring.

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PUM

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Abstract

The invention discloses high-ductility light aggregate concrete. The high-ductility light aggregate concrete is prepared from, by weight, 80-100 parts of cement, 20-50 parts of silica powder, 5-10 parts of ultrafine water-quenched slag powder, 3-8 parts of EPS grains, 1-2 parts of wood fiber, 2-6 parts of polytetrafluoroethylene, 1-3 parts of foaming agent and 300-400 parts of water. According tothe high-ductility light aggregate concrete, the materials are carefully selected, and the preparation method is scientific; after the EPS grains and polytetrafluoroethylene are mixed and heated, theEPS grains are hollowed out, one part of polytetrafluoroethylene is stored in the EPS grains, the other part of polytetrafluoroethylene wraps the EPS grains, vibration energy transfer can be effectively obstructed and reduced level by level, heat preservation is achieved, the bearing capacity is high, the weight is small, and the cost is low.

Description

technical field [0001] The invention belongs to the field of concrete building materials, and in particular relates to a high ductility light aggregate concrete and a preparation method thereof. Background technique [0002] In the past, civil buildings in my country have always been dominated by brick-concrete structures. The brick-concrete structure uses a huge amount of bricks, uses up a lot of soil for farming, and the process of firing clay bricks consumes a lot of energy, which has a negative impact on the environment. In addition, solid clay bricks have poor thermal insulation performance, which greatly increases the annual heating energy consumption. With the continuous development and progress of society, the development direction of building modernization is low cost, heat preservation, earthquake resistance, and long service life. The frequently used lightweight concrete has its application fields in construction projects expanding due to its good characteristics,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/10C04B111/40C04B111/20
CPCC04B28/00C04B2111/2046C04B2111/40C04B18/146C04B18/141C04B16/08C04B18/26C04B24/2682C04B2103/42C04B38/10
Inventor 张宇涵
Owner 张宇涵