Composite modified mortar for air-entrained bricks

A composite modified, aerated brick technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc. Wall leakage, high water absorption of mortar, etc., to achieve the effect of low cost, low thermal conductivity and good strength

Inactive Publication Date: 2016-01-27
ANHUI KUNLONG BUILDING MATERIALS CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

[0002] Aerated concrete bricks have many advantages such as light weight, good thermal insulation performance, sound-absorbing effect, and certain strength. The existing aerated bricks have long-standing problems such as leakage, cracking, and low strength of building walls; Mortar has a high water absorption rate, and it is difficult to have good comprehensive properties of crack resistance, durability, impact resistance, earthquake resistance and fire resistance

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  • Composite modified mortar for air-entrained bricks

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Embodiment Construction

[0023] A composite modified aerated brick mortar, which is made of the following components by weight percentage: 58% of quartz sand, 11% of fly ash, 4% of glass fiber, 2% of diatomite, 3% of bentonite, and 4.5% of quicklime , 9% cement, 2% aluminum powder, 4.5% redispersible latex powder, 1% superplasticizer, and 1% additive.

[0024] Further, the quicklime and aluminum powder need to be calcined and ground at a temperature of 180-200°C for 2-3 hours.

[0025] Further, the redispersible latex powder is acrylate and styrene copolymer powder.

[0026] Further, the water reducer is a melamine-based water reducer.

[0027] Further, the additive is cellulose ether.

[0028] Further, the diatomite undergoes process modification: soak the diatomite in 1% hydrochloric acid for 30 minutes, filter, then soak in 5% sodium hydroxide solution, heat and grind for 30-40 minutes , naturally cooled to room temperature, filtered, and dried.

[0029] Further, the cement is calcined: adding ...

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Abstract

The invention discloses composite modified mortar for air-entrained bricks. The mortar is prepared from the following ingredients (by weight): 58% of quartz sand, 11% of fly ash, 4% of glass fiber, 2% of diatomite, 3% of bentonite, 4.5% of quicklime, 9% of cement, 2% of aluminium powder, 4.5% of redispersible latex powder, 1% of a water reducer and 1% of an additive. The production technology is simple, and cost is low. The prepared mortar has good strength, low thermal conductivity and good crack resistance, is energy-saving and environmentally friendly, satisfies needs of constructional engineering and accords with requirements of environmental protection. By adding expansive soil into cement for calcination modification, adhesion of cement in the mortar is enhanced. By adding diatomite obtained after technological modification, performance of the mortar is improved, and the mortar has little shrinkage deformation. By using 1 wt% of cellulose ether as an additive, bondability of the ingredients is raised so as to further enhance strength of an air-entrained brick.

Description

technical field [0001] The invention relates to the field of building material production, in particular to a mortar for composite modified aerated bricks. Background technique [0002] Aerated concrete bricks have many advantages such as light weight, good thermal insulation performance, sound-absorbing effect, and certain strength. The existing aerated bricks have long-standing problems such as leakage, cracking, and low strength of building walls; Mortar has a high water absorption rate, and it is difficult to have good comprehensive properties of crack resistance, durability, impact resistance, earthquake resistance and fire resistance. Contents of the invention [0003] The purpose of this invention is to provide a kind of mortar for composite modified aerated brick, which is realized through the following technical solutions: [0004] A composite modified aerated brick mortar, which is made of the following components by weight percentage: 58% of quartz sand, 11% of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B18/08C04B14/42C04B22/06C04B22/04
CPCY02W30/91
Inventor 沈圣祥李凤必
Owner ANHUI KUNLONG BUILDING MATERIALS CO LTD
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