Mortar specially used for fly ash steam-pressing brisk construction, and preparation method thereof

A technology of fly ash and autoclaved bricks, which is applied in the field of special mortar and preparation of fly ash autoclaved brick masonry, which can solve problems such as pollution and unstable mixing ratio, reduce water consumption, reduce cost, and improve compactness Effect

Inactive Publication Date: 2014-03-12
SHUANGLIAO GUOFENG CEMENT PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The unstable mixing ratio and serious pollution of the mortar mixed on site have always been a major drawback that is difficult to solve in masonry projects, and have become the main factors affecting the application effect of the mortar mixed on site

Method used

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  • Mortar specially used for fly ash steam-pressing brisk construction, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Weigh the raw materials according to the ratio (raw materials are dry materials), sand 1550kg, cement 183 kg, fly ash 32 kg, admixture 2.15 kg, water 215 kg.

[0016] The sand has a bulk density of 1550 kg / m 3 The sand in the river sand, the cement is a composite portland cement with a strength grade of 32.5, the fly ash is a grade I fly ash, and the admixture is a special mortar for masonry with fly ash autoclaved bricks. agent (KDH-L type produced by Shanxi Kaidi Building Materials Company), and the water is drinking water.

[0017] The preparation method is: ① 1550 kg of sand, 183 kg of cement, 32 kg of fly ash, 2.15 kg of admixture, and 215 kg of water are uniformly mixed by weight; ② The mortar mixed in step ① is mechanically stirred for 3 minutes.

Embodiment 2

[0019] Weigh the raw materials according to the ratio (the raw materials are dry materials), 1500 kg of sand, 208 kg of cement, 37 kg of fly ash, 2.94 kg of admixture, and 220 kg of water.

[0020] The sand has a bulk density of 1500 Kg / m 3 The sand in the river sand, the cement is a composite portland cement with a strength grade of 32.5, the fly ash is a grade I fly ash, and the admixture is a special mortar for masonry with fly ash autoclaved bricks. agent (KDH-L type produced by Shanxi Kaidi Building Materials Company), and the water is drinking water.

[0021] The preparation method is the same as in Example 1.

Embodiment 3

[0023] Weigh the raw materials according to the ratio (the raw materials are dry materials), 1450 kg of sand, 234 kg of cement, 41 kg of fly ash, 3.85 kg of admixture, and 230 kg of water.

[0024] The sand has a bulk density of 1450 Kg / m 3 The sand in the river sand, the cement is a composite portland cement with a strength grade of 32.5, the fly ash is a grade I fly ash, and the admixture is a special mortar for masonry with fly ash autoclaved bricks. agent (KDH-L type produced by Shanxi Kaidi Building Materials Company), and the water is drinking water.

[0025] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a mortar specially used for fly ash steam-pressing brisk construction. The special mortar comprises following raw materials, by weight, 1350 to 1550kg of natural sand, 183 to 337kg of cement, 32 to 60kg of fly ash, 2.15 to 7.15kg of an additive specially used for the mortar which is specially used for fly ash steam-pressing brisk construction, and 215 to 250kg of water. The preparation method comprises following steps: (1) natural sand, cement, fly ash, the additive and water are uniformly mixed via mechanical mixing according to the weight ratio; and (2) the mortar obtained in step (1) is subjected to mechanical stirring for 3min. The preparation method is simple; water consumption of common masonry mortar is reduced; workability is improved; compactibility is increased; later phase strength increasing is rapid, and water penetration resistance, frost resistance and durability are all improved. The surfaces of fly ash steam-pressing bricks are smooth, and bonding of the fly ash steam-pressing bricks with mortar is difficult. A certain proportion of fly ash and the additive are added into the mortar, so that performances of the mortar are improved effectively, cost is reduced, and binding power of the mortar with the fly ash steam-pressing bricks is increased.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a special mortar for masonry of fly ash autoclaved bricks and a preparation method. Background technique [0002] With the progress of society and the needs of cities, red bricks have been gradually replaced, replaced by autoclaved fly ash bricks and many new wall materials masonry has begun to flow to the market, and mortar mixed on site and ordinary mortar cannot Meet the needs of masonry for new wall materials such as autoclaved fly ash bricks. [0003] Many construction workers don't know much about mortar. Now they just need to add some cement and some sand. In fact, when we develop mortar, we also need to have a deep understanding of the properties of raw materials. For example, cement is a gray powder in the eyes of others, but in the eyes of developers, it should be a mixture of tricalcium silicate, dicalcium silicate, tricalcium aluminate, tricalcium alumin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 王明飞程立国刘晓美陈功富刘鑫
Owner SHUANGLIAO GUOFENG CEMENT PROD CO LTD
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