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High strength dry-mixed masonry mortar and preparation method thereof

A masonry mortar and high-strength technology, which is applied in the field of building materials, can solve the problems of low water retention and cohesion, low crack resistance, easy shelling and cracking of mortar, and achieve stable performance, good compactness, and mortar joints. full effect

Inactive Publication Date: 2017-04-26
安庆市凯瑞建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the traditional masonry mortar is mainly made of cement, which has low water retention and cohesion, and low crack resistance. After a long time, a large strain is easily generated inside the masonry mortar, which causes the mortar to crack easily.

Method used

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  • High strength dry-mixed masonry mortar and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high-strength dry-mixed masonry mortar is prepared from the following raw materials in parts by weight: 100 parts of Portland cement, 20 parts of modified dickite powder, 20 parts of blast furnace slag, 10 parts of iron ore tailings, and 3 parts of polyethersulfone parts, 3 parts of limestone, 5 parts of river sand, 2 parts of latex powder, 2 parts of hydroxypropyl methylcellulose, 1 part of water reducing agent, 1 part of sodium rosin, and 2 parts of bonding aid.

[0019] The modified dickite powder is prepared by the following method: calcining dickite at 450° C. for 3 hours, after cooling, soaking in a 10% hydrogen peroxide solution for 3 hours, washing with deionized water until neutral, drying, and then drying the dickite. Add 1% of sodium laurate alkyd, 2% of sodium hexametaphosphate, 2% of cross-linking agent TAC equivalent to its weight, stir at a high speed of 3500 rpm, and after 30 minutes, dry and grind it into nano-powder, namely have to.

[0020] Said bo...

Embodiment 2

[0026] A high-strength dry-mixed masonry mortar is prepared from the following raw materials in parts by weight: 120 parts of Portland cement, 25 parts of modified dickite powder, 15 parts of blast furnace slag, 15 parts of iron ore tailings, and 5 parts of polyethersulfone parts, 5 parts of limestone, 6 parts of river sand, 6 parts of latex powder, 3 parts of hydroxypropyl methylcellulose, 13 parts of water reducing agent, 2 parts of sodium rosin, and 3 parts of bonding aid; the water reducing agent It is a polycarboxylate water reducer.

[0027] The modified dickite powder is prepared by the following method: calcining dickite at 450° C. for 3 hours, after cooling, soaking in a 10% hydrogen peroxide solution for 3 hours, washing with deionized water until neutral, drying, and then drying the dickite. Add 1% of sodium laurate alkyd, 2% of sodium hexametaphosphate, 2% of cross-linking agent TAC equivalent to its weight, stir at a high speed of 3500 rpm, and after 30 minutes, d...

Embodiment 3

[0034] A high-strength dry-mixed masonry mortar is prepared from the following raw materials in parts by weight: 150 parts of Portland cement, 30 parts of modified dickite powder, 10 parts of blast furnace slag, 20 parts of iron ore tailings, 6 parts of polyethersulfone parts, 7 parts of limestone, 10 parts of river sand, 8 parts of latex powder, 5 parts of hydroxypropyl methylcellulose, 5 parts of water reducing agent, 3 parts of sodium rosin, and 5 parts of bonding aid.

[0035] The modified dickite powder is prepared by the following method: calcining dickite at 450 DEG C for 3 hours, after cooling, soaking in 10% hydrogen peroxide solution for 3 hours, washing with deionized water until neutral, drying, and then drying Add 1% of sodium laurate alkyd, 2% of sodium hexametaphosphate, 2% of crosslinking agent TAC equivalent to its weight, stir at a high speed of 3500 rpm, and after 30 minutes, dry and grind it into nano-powder, that is, have to.

[0036] Said bonding aid is ...

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Abstract

The invention discloses a high strength dry-mixed masonry mortar and a preparation method thereof. The masonry mortar is prepared from the following raw materials in parts by weight: 100 to 150 parts of silicate cement, 20 to 30 parts of modified dickite powder, 10 to 20 parts of blast furnace slag, 10 to 20 parts of iron tailings, 3 to 6 parts of polyether sulfone, 3 to 7 parts of limestone, 5 to 10 parts of river sand, 2 to 8 parts of latex powder, 2 to 5 parts of hydroxypropyl methyl cellulose, 1 to 5 parts of water reducer, 1 to 3 parts of sodium abietate, and 2 to 5 parts of bonding auxiliary agent. The provided high strength dry-mixed masonry mortar has the advantages that the properties are stable; the workability, water retaining performance, and bonding strength are good; the bonding effect between the masonry mortar and building blocks is good; mortar joint is plump, the tightness is good, the strength is high, the cracking is difficult to happen, and the using performance of mortar is improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength dry-mixed masonry mortar and a preparation method thereof. Background technique [0002] Masonry mortar is mainly used for masonry, and the construction industry generally requires masonry mortar to have high strength. On the one hand, traditional masonry mortar is mainly prepared with cement, which has low water retention and cohesion, and low crack resistance. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and to provide a high-strength dry-mixed masonry mortar, which has stable performance, good workability, water retention and bonding strength, and is comparable to masonry in terms of shrinkage deformation and thermal conductivity. The blocks are close to each other, the bonding effect with the blocks is good, the ash joints are full, the compactness is good, the strength i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/34C04B14/04C04B18/14C04B18/12C04B20/04C04B103/30
CPCC04B14/041C04B18/12C04B18/142C04B20/04C04B24/34C04B28/04C04B2103/304C04B2201/50C04B24/166C04B14/28C04B14/068C04B24/24C04B24/383C04B2103/302C04B2103/0091C04B22/068C04B24/08C04B22/16C04B24/128Y02W30/91
Inventor 储茂德
Owner 安庆市凯瑞建材有限公司
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