Heating ground concrete packing layer

A technology of concrete and filling layer, which is applied in the field of concrete ground, which can solve the problems that C15 fine stone concrete cannot meet the requirements of heating ground, the filling layer absorbs heat and releases heat quickly, and the workload of the heat source plant is large, etc., and achieves small thermal expansion coefficient and high strength , the effect of small bulk density

Active Publication Date: 2013-12-11
内蒙古巨华集团大华建筑安装有限公司
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AI Technical Summary

Problems solved by technology

The thermal conductivity of concrete is 1.7~2.3w / M.K, which also easily leads to the rapid heat absorption and heat release of the filling layer. In order to maintain the indoor temperature requirements, the heat source needs to be continuously provided, resulting in a large workload of the heat source plant and waste of energy.
[0003] Therefore, the traditional concrete floor cushion and the use of C15 fine stone concrete obviously cannot meet the requirements of the new heating floor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Example, make 1000kg heating ground concrete filling layer, wherein each component is, 160kg of 425# cement, 260kg of sand with a particle size of 0.1-4mm, 340kg of stones with a particle size of 5-12mm, 80kg of 100 mesh mica powder, 120kg of desulfurized gypsum, medium viscosity methyl Cellulose ether 5kg, redispersible rubber powder 35kg, plus 160kg / m 3 water.

[0008] During construction, comprehensively analyze the project of the construction unit, such as the local climate at that time, the area and height of the house, the technical level of the construction machinery and workers, etc., and accurately grasp the actual status of the specific performance indicators of the raw materials used. , and other construction preparations. According to the original design formula of the heat-generating ground filling layer, professional and technical personnel shall carry out trial mixing with reference to the method of concrete mix ratio design. The raw materials actually u...

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PUM

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Abstract

The invention discloses a heating ground concrete packing layer which comprises 10-20% of 425#cement, 10-30% of sand with the particle size of 0.1-4 mm, 15-35% of pebble with the particle size of 5-12 mm, 3-15% of 100-mesh mica powder, 5-15% of flue gas desulfurization gypsum, 0.05-1% of medium-viscosity methyl cellulose ether, 1-5% of redispersible gelatin powder according to mass percent, and in addition, the additive quantity of water is 140-260 kg / m<3>. The concrete packing layer has the characteristics of light weight, high strength, uniform heat transfer, good electricity insulation, good temperature resistance, anti-permeability, water tightness, environmental protection, energy economization and the like.

Description

technical field [0001] The invention relates to a concrete floor, in particular to a concrete filling layer for a heating floor. Background technique [0002] With the development and progress of building materials and building construction technology, "building energy efficiency" has become a leading development direction in its field in recent years. Years of scientific research and practical experience have shown that the amount of concrete used in the concrete floor cushion is relatively large, and it is second only to the amount of structural concrete in buildings. Since the concrete ground cushion used to be only used as a transition layer for bearing pressure and leveling the ground base, it did not attract the attention of designers, construction personnel and users, and even cracked and collapsed the ground surface due to unreasonable ingredients or unqualified raw materials. Construction quality accidents. In the past ten years, due to the wide application of gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 文彦文建宗
Owner 内蒙古巨华集团大华建筑安装有限公司
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