Expanding material for cast-in-situ hollow building roof component

A technology of expansive materials and hollow floors, which is applied in the field of expansive materials, can solve problems such as excessive weight, and achieve the effect of reducing the weight of the floor and having a good sound insulation effect

Inactive Publication Date: 2009-06-17
HUNAN BDF ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The applicant introduced the shape and material of a hollow floor member in its application number 200810115294.7, which reduces some problems of the self-weight of the floor itself. It uses concrete mortar to cast a hollow member, and then pours the hollow member on In the floor, because it is a hollow structure, the weight of the floor itself is greatly redu

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A BDF expansion material, including sulfoaluminate cement, Portland cement, fly ash, early strength agent, water reducing agent, suspending agent, diffusing agent, foaming liquid and foam stabilizer, its weight percentages are respectively 4%, 65%, 21%, 0.54%, 0.33%, 2.88%, 0.92%, 2.74%, 2.59%, the early strength agent is triethanolamine composite early strength agent, the water reducer is calcium lignosulfonate, suspended The agent adopts organic bentonite, the diffusing agent adopts condensed sodium silicate, the foaming agent adopts petroleum ether, the foam stabilizer adopts dodecyl dimethyl amine oxide, and the weight percentage of foaming agent and water in the foaming liquid is 1.6%. This expansive material makes the floor light-weight, anti-corrosion and heat-insulating.

Embodiment 2

[0021] A BDF expansion material, including sulfoaluminate cement, Portland cement, fly ash, early strength agent, water reducing agent, suspending agent, diffusing agent, foaming liquid and foam stabilizer, its weight percentages are respectively 15%, 50%, 30%, 1.73%, 1.98%, 0.27%, 0.77%, 0.19%, 0.06%, the early strength agent is triethanolamine composite early strength agent, and the water reducer is naphthalenesulfonic acid formaldehyde condensate Sodium salt, the suspending agent adopts silica airgel, the diffusing agent adopts sodium hexametaphosphate, the foaming agent adopts sodium bicarbonate, the foam stabilizing agent adopts dodecyl dimethyl amine oxide, and the foaming agent in the foaming liquid The percentage by weight of water is 3.5%. This expansion material makes the floor cover light, corrosion-resistant, heat-preserving, high-strength, material-saving, anti-seepage, wear-resistant and frost-resistant.

Embodiment 3

[0023] A BDF expansion material, including sulfoaluminate cement, Portland cement, fly ash, early strength agent, water reducing agent, suspending agent, diffusing agent, foaming liquid and foam stabilizer, its weight percentages are respectively 8%, 55%, 35%, 0.37%, 0.51%, 0.17%, 0.054%, 0.416%, 0.48%. The early strength agent adopts triethanolamine composite early strength agent, and the water reducing agent adopts methylnaphthalenesulfonic acid formaldehyde condensation The sodium salt of the substance, the suspending agent adopts hydrogenated castor oil, the diffusing agent adopts lignosulfonate, the foaming agent adopts petroleum ether, the foam stabilizer adopts dodecyl dimethyl amine oxide, and the foaming agent and The percentage by weight of water is 1.8%. This expansive material enables the floor to have the properties of light weight, corrosion resistance, heat preservation, material saving, seepage prevention, wear resistance and frost resistance.

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PUM

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Abstract

The invention relates to an expansion material for a cast-in-situ hollow floor member, which comprises 4 to 15 percent of sulphoaluminate cement or ferro-aluminate cement, 50 to 65 percent of Portland cement, 18 to 35 percent of fly ash, and 2 to 10 percent of modifying agent (weight percentage). The invention adopts the sulphoaluminate cement or the ferro-aluminate cement to be mixed with the Portland cement to ensure that the expansion material has good performances of light mass, high strength, corrosion resistance, thermal insulation and so on, and then is matched with other modifying agents to ensure that the expansion material can save the using amount of the cement and ensure that a floor system has the advantages of high strength, permeation resistance, freezing resistance, cracking resistance, friction resistance, ultraviolet irradiation resistance, tensile resistance, compression resistance, shock resistance, and good sound insulation effect when reducing the weight of the floor system.

Description

technical field [0001] The invention relates to a material for pouring floor components, in particular to an expansion material for cast-in-situ hollow floor components. Background technique [0002] At present, my country's construction industry is in the heyday of development. Since 1990, the construction area of ​​my country's annual construction and completion has increased year by year. In order to make my country's economy develop sustainably, steadily and healthily, and save resources, building energy-saving walls with concrete as the main material The most critical technical direction of products and roof enclosure materials is to achieve lightweight insulation. Conventional floor components are poured with concrete mortar, but the amount of concrete mortar is large and heavy, which increases the weight of the entire floor and is not conducive to pouring. At present, there are few materials for cast-in-place hollow floor components. The development of new high-perfor...

Claims

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Application Information

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IPC IPC(8): C04B28/06C04B18/08
CPCC04B28/06Y02W30/91C04B7/02C04B18/08C04B38/10C04B2103/10C04B2103/302C04B2103/408C04B2103/48
Inventor 王本淼王海崴
Owner HUNAN BDF ENERGY SAVING TECH
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