Autoclaved sand-lime brick and preparation method thereof

A technology of autoclaved lime-sand brick and quicklime, which is applied in the field of building materials, can solve the problems of unstable shrinkage and easy cracking, and achieve the effects of shortening maintenance time, avoiding cracking, and improving production efficiency

Inactive Publication Date: 2021-06-29
HAINAN GUANGSHENG NEW BUILDING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The application provides an autoclaved lime-sand brick and its preparation method, which are used to solve the technical problems of unstable shrinkage and easy cracking of the existing autoclaved lime-sand bricks after being baked

Method used

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  • Autoclaved sand-lime brick and preparation method thereof
  • Autoclaved sand-lime brick and preparation method thereof
  • Autoclaved sand-lime brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] For ease of understanding, see figure 1 , The application provides an embodiment of an autoclaved lime-sand brick. According to mass percentage, the raw materials of the autoclaved lime-sand brick include: 40% to 60% of sand, 20% to 40% of quicklime, and 20% to 40% of fly ash % and superabsorbent resin particles 5% to 15%;

[0046] The autoclaved lime-sand brick is prepared by the following preparation method, including the following steps:

[0047] Step 101, mix 40%-60% of sand, 20%-40% of quicklime, 20%-40% of fly ash and 5%-15% of superabsorbent resin particles, add appropriate amount of water and stir to form a uniform mixture.

[0048] It should be noted that a small amount of chemical binder can be added to the raw materials of autoclaved lime-sand bricks to improve the coagulation of raw materials after mixing. Combine chemical binder, 40%-60% of sand, 20%-40% of quicklime, 20%-40% of fly ash and 5%-15% of superabsorbent resin particles, add appropriate amount ...

Embodiment 2

[0059] As a further improvement of Implementation 1, such as figure 2 As shown, the raw material of an autoclaved lime-sand brick provided in this embodiment also includes 5% to 10% of silica sol;

[0060] The autoclaved lime-sand brick is prepared by the following preparation method, including the following steps:

[0061] Step 201, adding 5%-10% of silica sol and 5%-15% of superabsorbent resin particles into an appropriate amount of water, stirring evenly, and then standing still for 1 hour to obtain a stirred product.

[0062] It should be noted that the blending and compounding of superabsorbent resin and inorganic substances is beneficial to improve the strength of the water-absorbing agent. In this embodiment, it is preferred that the superabsorbent resin is polypropylene amine, and the inorganic substance is silica sol. After the two are blended and polymerized, the strength of the superabsorbent resin can be improved, and the strength of the autoclaved lime-sand bric...

Embodiment 3

[0074] As a further improvement of embodiment 1 or 2, such as image 3 As shown, the raw material of an autoclaved lime-sand brick provided in this embodiment also includes 5% to 10% of aluminum powder;

[0075] The autoclaved lime-sand brick is prepared by the following preparation method, including the following steps:

[0076] Step 301, mix 40%-60% of sand, 20%-40% of quicklime, 20%-40% of fly ash, 5%-15% of superabsorbent resin particles and 5%-10% of aluminum powder and add appropriate amount of water Stir into a homogeneous mixture.

[0077] It should be noted that a small amount of chemical binder can be added to the raw materials of autoclaved lime-sand bricks to improve the coagulation of raw materials after mixing. Mix chemical binder, 40%-60% of sand, 20%-40% of quicklime, 20%-40% of fly ash, 5%-15% of superabsorbent resin particles and 5%-10% of aluminum powder, and add an appropriate amount The water is stirred into a uniform mixture to facilitate the uniform d...

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Abstract

The invention discloses an autoclaved sand-lime brick and a preparation method thereof. According to the invention, a high-water-absorbing resin material is added to preparation raw materials of an autoclaved sand-lime brick so as to improve the water absorption of the autoclaved sand-lime brick and reduce the brittleness of the autoclaved sand-lime brick, and the high-water-absorbing resin has the performance of absorbing water at high temperature and removing water at low temperature and is resistant to high pressure, so that the technical problems that an existing autoclaved sand-lime brick is unstable in shrinkage and prone to cracking after being discharged out of a furnace are solved.

Description

technical field [0001] The present application relates to the technical field of building materials, in particular to an autoclaved lime-sand brick and a preparation method thereof. Background technique [0002] Autoclaved lime-sand bricks are ordinary lime-sand bricks made of sand and lime as the main raw materials, pigments and admixtures are allowed, prepared from blanks, pressed into shape, and cured by high-pressure steam. Lime-sand brick is a new type of building material with mature technology, excellent performance and energy saving. It is suitable for load-bearing walls of multi-storey mixed structure buildings. However, the disadvantage of autoclaved lime-sand bricks is its unstable shrinkage. It will shrink greatly within 3 days after it is released from the oven, and it will not gradually stabilize until 60 days later. For cracking, it is necessary to take some anti-cracking measures when using it. Contents of the invention [0003] The present application pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/10C04B111/34
CPCC04B28/10C04B2201/50C04B2111/343
Inventor 贾伟吴乾农
Owner HAINAN GUANGSHENG NEW BUILDING MATERIALS
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