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Building ground lightweight dry mixed material, and preparation and application method thereof

A dry mix and ground technology, applied in the field of building materials, can solve the problems of not being able to meet large-scale engineering construction, insufficient sources of alternative materials, and difficulty in mastering the ratio of workers, so as to achieve excellent crack resistance, save material consumption and cost, The effect of weight reduction

Inactive Publication Date: 2016-01-13
BEIJING KUANHUA ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The bulk density of ordinary concrete is 2000kg / m 3 The above will greatly increase the self-weight of the structure, which is not conducive to earthquake resistance and increases the cost of the structure
[0005] 2. The bulk density of dry-mixed lightweight aggregate concrete is 1500kg / m 3 Left and right, although the weight has been reduced, the source of raw materials (light aggregate) of this material is limited. The clay ceramsite used in the past is a restricted material in most of the country due to environmental protection requirements, and the current alternative material also insufficient source
[0006] 3. The bulk density of dry-mixed composite lightweight aggregate concrete is required to be 850 and 600, and its aggregate is made of waste polyurethane plastic, but the source of this material is very limited and cannot meet the needs of large-scale engineering construction
[0007] During the construction of the above second and third materials, because it is difficult for workers to grasp the ratio and cannot be fully compacted, it is easy to cause common quality problems such as hollowing and cracking, which seriously affects the quality of the project.

Method used

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  • Building ground lightweight dry mixed material, and preparation and application method thereof
  • Building ground lightweight dry mixed material, and preparation and application method thereof
  • Building ground lightweight dry mixed material, and preparation and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]A method for making a ground cushion, the dosage ratio of polystyrene aggregate to powder is 1L of polystyrene aggregate: 1000g of powder; the powder is ordinary Portland cement;

[0050] Including the following steps:

[0051] (1) Ground base treatment: remove loose parts on the ground base;

[0052] (2) The design with anti-seismic pads and the ground with a one-way size greater than 5m are laid with an alkali-resistant glass fiber mesh cloth with an aperture of 10mm×10mm×80g (mass per square meter);

[0053] (3) Find the horizontal control line of the elevation elastic;

[0054] (4) Stir the powder and water into a uniform slurry with a mass ratio of about 1:0.6, then add polystyrene aggregates for secondary stirring to form a uniform mixture, and obtain a lightweight slurry for the building floor;

[0055] (5) Laying and compacting: Lay the obtained lightweight slurry on the building floor on the base layer, and use a shovel or plank to compact it as it is laid to ...

Embodiment 2

[0069] Adopt the same method as embodiment 1 to make a kind of ground cushion, difference is:

[0070] The dosage ratio of polystyrene aggregate to powder is 1L polystyrene aggregate: 800g powder; the mass ratio of ordinary Portland cement and sand in the powder is ordinary Portland cement: sand = 100:400;

[0071] The thickness of the light layer on the building ground obtained is 30 mm.

[0072] The strength, combustion performance and radioactivity of the light layer on the ground of the building obtained were tested, and the results obtained are as follows:

[0073] Table 3 The detection result of the light layer on the building ground obtained in Example 2 of the present invention

[0074] project

[0075] It can be drawn from Table 3 that the radioactivity of the light layer on the building ground obtained in Example 2 of the present invention meets the requirements of the GB6566-2010 "Limited Radionuclide Limits for Building Materials" standard, and the comb...

Embodiment 3

[0077] Adopt the same method as embodiment 1 to make a kind of ground cushion, difference is:

[0078] The dosage ratio of polystyrene aggregate to powder is 1L polystyrene aggregate: 700g powder; the mass ratio of ordinary Portland cement and S95 grade mineral powder in the powder is ordinary Portland cement: S95 grade mineral powder =100:200;

[0079] The thickness of the lightweight layer on the building ground obtained was 40 mm.

[0080] The strength, combustion performance and radioactivity of the light layer on the ground of the building obtained were tested, and the results obtained are as follows:

[0081] Table 4 The detection result of the light layer on the building ground obtained in Example 3 of the present invention

[0082] project

[0083] It can be drawn from Table 4 that the radioactivity of the lightweight layer on the building ground obtained in Example 3 of the present invention meets the requirements of the GB6566-2010 "Limited Radionuclide ...

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Abstract

The invention provides a building ground lightweight dry mixed material, and a preparation and an application method thereof. The building ground lightweight dry mixed material comprises aggregates and powder, the aggregates are polystyrene foam particles, and the powder comprises cement, and also comprises one or more of sands, a mineral admixture and an additive. The building ground lightweight dry mixed material has the advantages of simple components, easily available raw materials, and light weight. The building ground lightweight dry mixed material can be used to construct ground cushions or ground slope making layers, and the obtained ground cushions or ground slope making layers have the advantages of light weight, shock resistance, heat insulation, sound insulation and stability.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a lightweight dry mix for building ground and a preparation and application method thereof. Background technique [0002] The floor cushion of the current building structure is mostly made of ordinary concrete, lightweight aggregate concrete and dry-mixed composite lightweight aggregate concrete, and the roof slope is mostly made of lightweight aggregate concrete and dry-mixed composite lightweight aggregate concrete. [0003] Three materials are commonly used in floor cushioning practices: [0004] 1. The bulk density of ordinary concrete is 2000kg / m 3 The above will greatly increase the self-weight of the structure, which is not conducive to earthquake resistance, and increases the structural cost. [0005] 2. The bulk density of dry-mixed lightweight aggregate concrete is 1500kg / m 3 Left and right, although the weight has been reduced, the source of raw materials (light ag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B14/06C04B111/60
Inventor 王洪光郭文龙李兴昌
Owner BEIJING KUANHUA ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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