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Adhesive special for sand aerated concrete boards and preparation method of adhesive

A technology for aeration of concrete and sand, applied in the field of building materials, can solve the problems of easy hollowing, unsightly, color difference, etc. good compression effect

Inactive Publication Date: 2018-05-18
SHAANXI NITYA NEW MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to develop a special adhesive for sand aerated concrete slabs and its preparation method to solve the problems of easy hollowing, cracks, color difference after filling, weak bonding and unsightly appearance in the prior art adhesive. question

Method used

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Examples

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preparation example Construction

[0027] A method for preparing the special binder for sand aerated concrete slabs as described above, comprising the following steps:

[0028] (1) The components are divided into Portland cement 25%~30%, quartz sand 50%~58%, sand aerated concrete plate waste 15%~20%, redispersible latex powder 1.5%~2.0%, 0.1%~0.3% of hydroxypropyl methylcellulose ether, 0.1%~0.3% of wood fiber, 0.04%~0.08% of starch ether, and 0.1%~0.2% of polypropylene fiber;

[0029] (2) Put the components of step 1 into quartz sand and sand aerated concrete slab waste first, then into Portland cement, and finally add redispersible latex powder, hydroxypropyl methylcellulose ether, wood fiber, Starch ether and polypropylene fiber are stirred evenly, and the stirring time is ≥180s to prepare the dry powder of the special binder for sand aerated concrete slabs.

Embodiment 1

[0031] The components are 27% of 32.5 grade white Portland cement, 60.62% of quartz sand (particle size ≤ 1mm), 10% of sand aerated concrete plate waste, 1.5% of redispersible latex powder, hydroxypropyl methylcellulose 0.3% plain ether, 0.3% wood fiber, 0.08% starch ether, and 0.2% polypropylene fiber (length 3mm) for batching.

[0032] Put the above components into quartz sand and sand aerated concrete slab waste first, then into Portland cement, and finally add redispersible latex powder, hydroxypropyl methylcellulose ether, wood fiber, starch ether, polypropylene fibers, stir evenly, and the stirring time is ≥180s, and the dry powder of the special binder for sand aerated concrete panels is prepared.

[0033] Mix the prepared binder with water, the ratio of binder to water is 3:1, first pour the water into the mixing container, then put the binder into the mixing container, and use electric tools to stir evenly It is made into the shape of cement, and the consistency is s...

Embodiment 2

[0036] The components are 30% of 32.5 grade white Portland cement, 59.32% of quartz sand (particle size ≤ 1mm), 8% of sand aerated concrete plate waste, 1.8% of redispersible latex powder, hydroxypropyl methylcellulose 0.3% plain ether, 0.3% wood fiber, 0.08% starch ether, and 0.2% polypropylene fiber (6mm in length) for batching.

[0037] Put the above components into quartz sand and sand aerated concrete slab waste first, then into Portland cement, and finally add redispersible latex powder, hydroxypropyl methylcellulose ether, wood fiber, starch ether, polypropylene fibers, stir evenly, and the stirring time is ≥180s, and the dry powder of the special binder for sand aerated concrete panels is prepared.

[0038] Mix the prepared binder with water, the ratio of binder to water is 3.5:1, first pour the water into the mixing container, then put the binder into the mixing container, and use electric tools to stir evenly It is made into the shape of cement, and the consistency ...

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Abstract

The invention discloses an adhesive special for sand aerated concrete boards and a preparation method of the adhesive. The adhesive comprises, by weight percentage, 25-30% of Portland cement, 50-58% of quartz sand, 15-20% of sand aerated concrete board waste, 1.5-2.0% of redispersible latex powder, 0.1-0.3% of hydroxypropyl methyl cellulose ether, 0.1-0.3% of wood fibers, 0.04-0.08% of starch ether and 0.1-0.2% of polypropylene fibers. The adhesive is good in water-retaining property and adhesive property, small in shrinkage ratio, high in crack resistance and less prone to interface crack generation, the recycled sand aerated concrete board waste is used as the raw material, and consistency with the color of a wall after filling is achieved.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a special binder for sand aerated concrete panels and a preparation method thereof. Background technique [0002] With the rapid development of building energy conservation, the continuous advancement of housing industrialization and the transformation of construction technology to industrial design, factory production, and prefabricated construction, sand aerated concrete panels have a large number of successful applications in industrial and civil buildings. [0003] Sand aerated concrete slabs are high-performance, porous, lightweight concrete materials made of silicon and calcium as raw materials, aluminum powder (paste) as an air-generating agent, reinforced with anti-rust treated steel bars, and cured by high-temperature and high-pressure steam. . It has the characteristics of light weight, good thermal insulation performance, strong machinability, convenient construction...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00637C04B2201/50C04B14/06C04B18/167C04B2103/0057C04B24/383C04B24/38C04B16/0633
Inventor 刘洋李军奇薛小雨
Owner SHAANXI NITYA NEW MATERIALS TECH CO LTD
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