Light sound insulation damping mortar and building construction method

A technology of damping sand and light sand, which is used in the field of building materials, can solve the problems of the impact sound pressure level not meeting the design requirements of the specification, the destruction of sound bridges and sound insulation pads, etc.

Inactive Publication Date: 2015-10-07
杜飞月
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, floors have certain requirements for airborne sound insulation and impact sound insulation. The thickness of residential floors under construction in my country is basically 90-120mm thick reinforced concrete floors, and the standardized impact sound pressure level of floor weighting cannot meet the specification design requirements.
To improve the impact sound insulation performance of the floor, the method of floating floor slab construction is usually adopted, that is, laying a layer of elastic cushion (sound

Method used

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  • Light sound insulation damping mortar and building construction method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Choose from the following proportions:

[0030] 42.5R cement 30%

[0031] Fly Ash 4.0%

[0032] Rubber 5.0%

[0033] Bottom slag 53%

[0034] Vitrified microbeads 6.7%

[0035] Latex powder 1%

[0036] Cellulose ether 0.15%

[0037] PP fiber 0.15%,

[0038] Mix evenly according to the above percentage example, add an appropriate amount of water and stir evenly in a mixer, and perform a performance index test. The test data is as follows:

[0039] Apparent density: 651kg / m 3 , Tensile bond strength: 0.18Mpa, compressive strength: 3.8Mpa, linear shrinkage: 0.14%, thermal conductivity: 0.118W / m.k.

[0040] Take the 30mm thick lightweight sound insulation and damping mortar with this ratio and spread it on the reinforced concrete floor to test the impact sound improvement. The impact sound improvement is 17dB.

[0041] Select the above-mentioned lightweight sound-proof damping mortar and apply it to the 120mm thick reinforced concrete floor: design structure 1 is: ...

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Abstract

The invention discloses light sound insulation damping mortar. The light sound insulation damping motor is formed by mixing 10-50% of inorganic cementing material, 5-50% of rubber, 10-80% of light sand, 1-50% of aggregate and 0.01-20% of additive. A light sound insulation floor is composed of the light sound insulation damping mortar (2) smeared to the top of a concrete floor (1), a protection surface layer (3) smeared on the upper portion of the light sound insulation damping mortar (2) and the light sound insulation damping mortar (2) which is smeared to the upper wall at a wall corner and exceeds the protection surface layer (3).

Description

Technical field: [0001] The invention belongs to the field of building materials and is suitable for thermal insulation and sound insulation treatment of building floors. Background technique: [0002] With the development of economy and society, the requirements for the comfort of buildings are getting higher and higher. Building floors, partition walls, and partition walls are required to have a certain thermal insulation effect and have a certain sound insulation effect. In particular, floors have certain requirements for airborne sound insulation and impact sound insulation. The thickness of residential floors under construction in my country is basically 90-120mm thick reinforced concrete floors, and the standardized impact sound pressure level of floor weighting cannot meet the specification design requirements. . To improve the impact sound insulation performance of the floor, the method of floating floor slab construction is usually adopted, that is, laying a layer ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/14E04F15/12E04F15/20
Inventor 杜飞月
Owner 杜飞月
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