Energy-saving self-thermal insulation concrete and production process

A production process and self-insulation technology, applied in the field of construction, can solve problems such as failure to meet the energy-saving requirements of building construction, easy cracking of the insulation layer, and poor heat insulation performance

Inactive Publication Date: 2019-06-28
台州普立德建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The exterior wall materials of housing construction in my country mainly include clay solid bricks, hollow bricks, porous bricks, concrete blocks, etc., which generally have problems such as high thermal conductivity and poor thermal insulation performance, which do not meet the national energy-saving requirements for housing construction, and usually require In order to meet the requirements of relevant specifications, the thermal insulation layer should be made on the outer surface or inner surface of the wall.
[0003] Insulation engineering is a systematic project. The main material for building buildings is concrete. In order to meet the needs of the people, concrete insulation materials have appeared on the market, mainly using sawdust, polylight balls, kaolin, bauxite clinker, etc. as raw materials. These The cost of raw materials is high, and the processing cost is also high
Moreover, thermal insulation materials usually do not have a fireproof function, and the fireproof isolation belt that needs to be installed is usually installed by secondary construction on site. The formed thermal insulation wall has quality and safety problems such as complicated and cumbersome construction and easy cracking, water seepage, and falling off of the insulation layer. It is also difficult to achieve the same service life of building insulation and structure

Method used

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  • Energy-saving self-thermal insulation concrete and production process

Examples

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Comparison scheme
Effect test

Embodiment 1

[0037] An energy-saving self-insulating concrete, which is made of the following components by weight: 180 parts of cement, 50 parts of secondary fly ash, 100 parts of mineral powder, 5 parts of polypropylene fiber, 320 parts of sand, light aggregate 350 parts, 3 parts of admixture, 160 parts of water.

[0038] Wherein, the length of the polypropylene fiber is 20 mm, and the diameter is ≥0.05 mm.

[0039] The admixture is slaked lime.

[0040] Light aggregates include fine and light aggregates and coarse and light aggregates, both of which are compounded by vermiculite, alkali slag, desulfurized gypsum, kaolin and aluminum slag according to the mass ratio of 1:5:10:20:10. The former is crushed to 0.22mm, and the latter is crushed to 5mm; the mass ratio of fine and light aggregates to coarse and light aggregates is 1:1.2. The specific method of compounding is: crush alkali slag and aluminum slag, mix them evenly with vermiculite and kaolin, add water 0.1 times their total wei...

Embodiment 2

[0049] An energy-saving self-insulating concrete, which is made of the following components by weight: 220 parts of cement, 90 parts of secondary fly ash, 130 parts of mineral powder, 10 parts of polypropylene fiber, 370 parts of sand, light aggregate 450 parts, 5 parts of admixture, 190 parts of water.

[0050] Wherein, the length of the polypropylene fiber is 30 mm, and the diameter is ≥0.05 mm.

[0051] The admixture is sulfoaluminate.

[0052] Light aggregates include fine and light aggregates and coarse and light aggregates, both of which are compounded by vermiculite, alkali slag, desulfurized gypsum, kaolin and aluminum slag according to the mass ratio of 1:6:15:30:12 and then pulverized. The former is crushed to 0.88mm, and the latter is crushed to 8mm; the mass ratio of fine and light aggregates to coarse and light aggregates is 1:1.3. The specific method of compounding is: crush alkali slag and aluminum slag, mix them evenly with vermiculite and kaolin, add water 0...

Embodiment 3

[0061] An energy-saving self-insulating concrete, which is made of the following components by weight: 180 parts of cement, 90 parts of secondary fly ash, 100 parts of mineral powder, 10 parts of polypropylene fiber, 320 parts of sand, light aggregate 450 parts, 3 parts of admixture, 190 parts of water.

[0062] Among them, the polypropylene fiber is a recycled modified material, and its preparation method is as follows: cutting and crushing the waste polypropylene material to make a crushed material with a particle size of less than 5mm, washing with water, drying and drying to obtain a dry crushed material; then drying and crushing The material and the polyamide resin are melted and mixed at high temperature at a mass ratio of 1:0.2 to form a molten material; finally, the molten material is spun to obtain polypropylene fibers. The high-temperature melt-mixing method is as follows: mixing the dry crushed material and the polyamide resin together and heating until melting, and...

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Abstract

The invention discloses an energy-saving thermal insulation concrete and a production process. According to the production process, cement, pulverized fuel ash, mineral powder, polypropylene fiber, sand, light aggregate, an admixture, water and the like are taken as raw materials to cooperate synergistically. The energy-saving thermal insulation concrete has high compressive strength, does not easily crack, has good fireproof performance and a good thermal insulation function, saves the energy and is environmentally friendly. The adopted polypropylene fiber can be a regenerated modified material, a waste polypropylene material is modified by using polyamide resin, the toughness of the polypropylene fiber is further improved after the modification treatment, thereby improving the compressive strength and other indexes of a concrete product.

Description

technical field [0001] The invention relates to a concrete, in particular to an energy-saving self-insulating concrete and a production process, and belongs to the technical field of construction. Background technique [0002] With the rapid development of the national economy and the continuous improvement of people's living standards, the consumption of energy is also increasing, and the problem of energy shortage has become increasingly prominent. The exterior wall materials of housing construction in my country mainly include clay solid bricks, hollow bricks, porous bricks, concrete blocks, etc., which generally have problems such as high thermal conductivity and poor thermal insulation performance, which do not meet the national energy-saving requirements for housing construction, and usually require In order to meet the requirements of relevant specifications, the thermal insulation layer should be made on the outer surface or inner surface of the wall. [0003] Insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/28C04B111/34
Inventor 林峰王海强金剑雨
Owner 台州普立德建筑科技有限公司
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