Nucleating agent, copper tailing autoclaved aerated concrete product, preparation method and application

A concrete product, autoclaved aerated technology, applied in the field of preparation, copper tailings autoclaved aerated concrete products, crystal nucleating agent, can solve the problems of large shrinkage, high bulk density, low compressive strength, etc., to reduce product shrinkage , Low dry density, and the effect of improving compressive strength
CN112225485AInactive Publication Date: 2021-01-15江西省建筑材料工业科学研究设计院
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
江西省建筑材料工业科学研究设计院
Publication Date
2021-01-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of building materials, and particularly discloses a nucleating agent, a copper tailing autoclaved aerated concrete product, a preparation method and application. The nucleating agent comprises the following raw materials: blast furnace slag, nano calcium carbonate, fly ash, acicular wollastonite powder, polycarboxylic acid, triterpenoid saponin and sodium silicate. The nucleating agent can be used for preparing autoclaved aerated concrete blocks by utilizing the characteristics of early enhancement and tobermorite crystallization induction, and by generating enough tobermorite to be inserted into CSH gel, the compressive strength is effectively improved, the shrinkage of the product is reduced, the dry density is low, and the problems that in the prior art, when copper tailings are used as raw materials for preparing autoclaved aerated concrete blocks, produced products are low in compressive strength, high in volume weight and large in shrinkage are solved. The provided preparation method is simple, can be used for rapidly and efficiently preparing the nucleating agent, and has a wide market prospect.
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Description

technical field

[0001] The invention relates to the technical field of building materials, in particular to a crystal nucleating agent, a copper tailing autoclaved aerated concrete product, a preparation method and an application. Background technique

[0002] With the continuous development of science and technology, people pay more and more attention to environmental issues. Among them, copper tailings (waste slag), also known as copper tailings, are composed of fine powder sand left after the ore has been crushed and selected. If it is not treated in time, it will easily cause environmental problems.

[0003] Usually, except for a small amount of copper tailings used as filling materials for old mines, most of the copper tailings are disposed of by stacking, which not only takes up a lot of land, but also easily pollutes the ecological environment, and the heavy metal ions contained in it are easy to Seep down into groundwater and river water, endangering people's health...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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