Light energy-saving heat-insulating wall material

A heat-insulating wall and lightweight technology, applied in the field of building materials, can solve problems such as difficult surface bonding, soft materials, improper dosage, etc., and achieve the effects of reducing early hydration heat, improving permeability resistance, and reducing temperature cracks

Inactive Publication Date: 2007-03-21
HARBIN ENG UNIV
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Problems solved by technology

It will cause more holes in the modified EPS light aggregate concrete
[0009] (3) Since EPS particles are an organic material, its surface is lipophilic, while cement is an inorganic material, mainly composed of ionic compounds, and its surface agglomerates have strong water absorption. The surface properties of the two completely different materials making it hard to bind to the surface
Therefore, the problem of weak bonding between EPS particles and cement mortar is prone to occur.
Moreover, the material is soft and used in a large amount. If the amount of cement mortar is small, it will not be enough to wrap the EPS particles, which will cause many large holes to be formed inside the modified EPS lightweight aggregate concrete.
[0010] It is precisely because of the improper handling of these problems that the compressive strength and thermal conductivity of the current concrete materials containing EPS cannot meet the requirements.

Method used

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Examples

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Embodiment Construction

[0079] The following examples describe the present invention in more detail:

[0080] 1. Polystyrene with a weight ratio of 1.2-2.6% is used as lightweight aggregate, 72-76% of Portland cement is used as cementitious material, 22-26% of sand is used as aggregate, and 35% of polystyrene weight -88% water, expansion agent accounting for 13% by weight of Portland cement, and water reducing agent accounting for 1% by weight of Portland cement as raw materials. First, crush the polystyrene into particles with a radius of 1-6mm with a pulverizer, add water to make the polystyrene wet, then add Portland cement, sand, and expansion agent and stir evenly, and dilute the water reducer with water Add it together with the rest of the water, stir it, and shape it into a product.

[0081] 2. Polystyrene and perlite with a weight ratio of 1.2-2.6% are used as lightweight aggregates, 72-76% of Portland cement and fly ash are used as cementitious materials, and 22-26% of sand is used as aggre...

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Abstract

The light energy-saving heat insulating wall material is produced with light aggregate in 1.2-2.6 wt%, gelating material in 72-76 wt% and sand in 22-26 wt%, as well as water in 35-88 wt% of gelating material, bulking agent in 13 wt% of gelating material and water reducing agent in 1 wt% of gelating material. The light energy-saving heat insulating wall material has the advantages of saving in land, low power consumption, light weight, easy construction, high heat insulating performance, etc. and may be used in network structure building system and non-bearing wall building system.

Description

(1) Technical field [0001] The invention relates to a building material, specifically a building material containing cement and organic compounds. (2) Background technology [0002] At present, countries around the world are paying more and more attention to protecting the environment, and have developed many recycling technologies to apply industrial waste to construction, which means environmental protection, energy saving, and economic benefits, as well as enriching the building material market. Waste polystyrene foam (EPS) has stable chemical properties and is not easy to corrode, which has caused great pollution to the environment. At the same time, it is a lightweight material with good thermal insulation properties. The lightweight aggregate concrete made of it as the lightweight aggregate of concrete has low density, low thermal conductivity, sound insulation, and low cost. It has been widely used abroad, especially in the United States and Canada. In addition to b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/04C04B14/18
Inventor 陈卫东张国侠刘源春
Owner HARBIN ENG UNIV
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