Anti-freezing mortar special for aerated bricks

A kind of aerated brick and mortar technology, applied in the field of building materials, can solve problems such as imperfect composition and performance, sudden drop in strength and other performance, poor heat preservation and temperature resistance, etc., achieve good microporous structure and bulk density, improve frost resistance, The effect of increasing strength

Inactive Publication Date: 2015-12-30
ANHUI KUNLONG BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the composition and properties of the mortar prepared by most manufacturers are not perfect, which leads to defects such as low strength, easy to burst, weak water resistance, poor heat preservation and temperature resistance of the manufactured aerated bricks. In areas with low temperature or when the temperature changes greatly, Some products with poor antifreeze performance will experience a sudden drop in strength and other properties, which poses a major safety hazard

Method used

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  • Anti-freezing mortar special for aerated bricks
  • Anti-freezing mortar special for aerated bricks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A special mortar for frost-resistant aerated bricks, made of the following substances by weight:

[0024] 35 parts of slag, 30 parts of cement, 25 parts of river sand, 0.6 parts of water reducing agent, 0.5 parts of air-entraining agent, 1.5 parts of antifreeze, 4 parts of vitrified microspheres, 4 parts of kapok fiber, 2.5 parts of rare earth oxide, 7 parts Modified concave-convex soil.

[0025] Further, the slag is composed of iron slag and zinc slag, and its crushed particle size is not greater than 3mm.

[0026] Further, the cement is Portland cement with a label of 42.5.

[0027] Further, the river sand is composed of 50% fine sand with a particle size of 0.25-0.35 mm and 50% medium sand with a particle size of 0.35-0.50 mm.

[0028] Further, the water reducer is a naphthalene powder water reducer.

[0029] Further, the air-entraining agent is composed of a rosin resin-based air-entraining agent and an alkylbenzenesulfonate-based air-entraining agent.

[0030] ...

Embodiment 2

[0038] A special mortar for frost-resistant aerated bricks, made of the following substances by weight:

[0039] 38 parts of slag, 33 parts of cement, 26 parts of river sand, 1 part of water reducer, 0.6 parts of air-entraining agent, 1.5 parts of antifreeze, 5 parts of vitrified microbeads, 4 parts of kapok fiber, 4 parts of rare earth oxide, 6 parts Modified concave-convex soil.

[0040] Further, the slag is composed of magnesium slag and copper slag, and the particle size after crushing is not greater than 3mm.

[0041] Further, the cement is 52.5 Portland cement.

[0042] Further, the river sand is composed of 40% fine sand with a particle size of 0.25-0.35mm and 60% medium sand with a particle size of 0.35-0.50mm.

[0043] Further, the water reducer is composed of aliphatic powder water reducer and polycarboxylic acid powder water reducer.

[0044] Further, the air-entraining agent is composed of alkylbenzene sulfonate air-entraining agent and fatty alcohol sulfonate a...

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Abstract

The invention discloses anti-freezing mortar special for aerated bricks, made from, by weight, 30-40 parts of mineral residue, 30-35 parts of cement, 25-30 parts of river sand, 0.5-1 part of a water reducing agent, 0.5-1 part of an air entraining agent, 1-2 parts of an anti-freezing agent, 4-6 parts of vitrified micro bubbles, 3-5 parts of Kapok fiber, 2-4 parts of rare-earth oxide, and 5-8 parts of modified attapulgite. Unique components are selected, their contents are reasonably matched, and the mortar and its products are good in strength, cracking resistance, water permeation resistance and temperature resistance and excellent in anti-freezing performance, are applicable to cold areas and areas having great temperature differences and have excellent performance, and potential safety hazards are decreased.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a special mortar for frost-resistant aerated bricks. Background technique [0002] Aerated bricks are aerated bricks produced by high-temperature autoclaved equipment, that is, bricks produced by various other processes including autoclaved. It is unique in that it is a very light thermal insulation Hot new building wall materials. The biggest advantage of aerated bricks is to save land resources, without wasting a lot of cultivated land. Its raw materials are widely used. Ash sand, slag, fly ash and coal gangue are all raw materials for aerated bricks. After mixing the raw materials into mortar, Then through the molding process to make aerated bricks. At present, the composition and properties of the mortar prepared by most manufacturers are not perfect enough, resulting in defects such as low strength, easy to burst, weak water resistance, poor heat preservation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B16/06C04B111/76
Inventor 沈圣祥李凤必
Owner ANHUI KUNLONG BUILDING MATERIALS CO LTD
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