Inorganic lightweight grouting material, and manufacture method thereof

Abstract

The invention discloses an inorganic lightweight grouting material, and a manufacture method thereof. The inorganic lightweight grouting material provided by the invention is manufactured from a low-density, surface-sealed and inside-hollow granular expanded ore such as pitch stone or perlite as main raw material, a powdery adhesive, an additive and the like through blending at a proper ratio. The inorganic lightweight grouting material is practically used by adding water according to a certain ratio, uniformly stirring, pouring into building wall and carrying out hydration reaction to form the grouting material for wall filling. The grouting material has the advantages of slight expansion, low specific gravity (smaller than water), good heat preservation and fireproof effects, strong high-temperature resistance, good sound absorbing property, low cost, etc.

Description

Technical field [0001] The invention relates to a building material and a manufacturing method thereof, and more particularly, to an inorganic lightweight grouting material and a manufacturing method thereof. Background technique [0002] The currently known light steel frame wall grouting material in the construction industry uses cement, river sand and styrofoam as the main materials. After the frame assembly is completed, a layer of high-density cement board is locked on both sides of the frame, and then the cement, fine sand, and styrofoam are mixed in a ratio of 1:2:4 or other ratios, and then mixed with water. The slurry-like filler is used as a grouting material. Finally, the slurry-like filler is driven into the hollow frame of the wall with a grouting machine. When the slurry-like filler in the wall is dried, a solid light partition is formed Between the walls. [0003] This kind of commonly known as "light compartment grouting wall" has been implemented for many years. ...

AI Technical Summary

Problems solved by technology

However, because styrofoam is difficult to decompose and has environmental concerns, government environmental protection units have gradually reduced the scope of styrofoam use (for example, styrofoam tableware has been banned since 2003), causing many environmental protection and private companies to gradually reject its use Such Styrofoam Grout Products

[0004] In addition, although traditional light compartment grouting walls are fireproof, Styrofoam will produce a large amount of toxic gas when exposed to fire, which is a fatal problem. Therefore, the construction industry has been trying to improve the grout of light compartment grouting walls for a long time However, there has been no significant effect. For example, ceramsite is used to replace Styrofoam, but due to the high water absorption rate and high friction coefficient of ceramsite, the grouting machine cannot effectively drive the slurry material into the wall; Rock and vermiculite are used as aggregates to replace Styrofoam, but they cannot effectively replace traditional Styrofoam-containing grouting materials due to their high water absorption, soft texture or high unit price.

[0005] In addition, most of the grouting aggregates used in the general construction industry are mainly river stones. This type of traditional aggregates is characterized by large specific gravity and fast heat conduction, which increases the load of the building and affects the wall. Insulation effect, especially rivers have been affected by sand and gravel mining for a long time, often causing river beds to be hollowed out and rivers diverted, which greatly affects the safety of people's lives and properties

[0006] In order to solve the shortcomings of traditional stone as aggregates in the construction industry, one method is to use silt, sludge, clay and other materials, and then fire them into ceramsite in a high-temperature kiln to replace traditional aggregates, but silt, sludge There will be concerns about pollution in the composition of the natural clay, and the use of natural clay will affect the long-term use of the land. Moreover, as mentioned above, these products need to be fired at high temperatures, and a large amount of energy is consumed during the high-temperature firing process. Quite contradictory to the concept of environmental protection that advocates energy saving and carbon reduction

[0007] On the other hand, the construction industry has also developed lightweight aggregates that use coal-fired "fly ash" as the main raw material. However, fly ash is a by-product of the production process of steel mills and power plants, and it may have radioactive pollution. Raw materials were obtained at low prices in the past, but under the circumstances that a large number of fly ash products are used in the construction industry, the price of fly ash has a tendency to rise gradually, resulting in an increase in costs

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