Fiber foamed concrete and preparation method thereof

Through a specific proportion of fiber foam concrete, combined with modified glass fiber and surface-active polymer foaming agent, the problem of low durability and compressive strength of railway roadbed insulation materials has been solved, and efficient thermal insulation performance improvement has been achieved, which is suitable for Requirements for the stability and durability of railway subgrade.

CN106866177AInactive Publication Date: 2017-06-20SHIJIAZHUANG TIEDAO UNIV
4 Cites 8 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHIJIAZHUANG TIEDAO UNIV
Filing Date
2017-03-03
Publication Date
2017-06-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing insulation materials for railway roadbeds, such as polystyrene and polyurethane insulation boards, have poor durability and low compressive strength, making it difficult to meet the stability and insulation needs of railway projects.

Method used

Using a specific ratio of fiber foam concrete, including cement, fly ash, modified glass fiber and surface-active polymer foaming agent, fiber foam concrete with high compressive and flexural strength is prepared through mixing and foaming processes. The density is 50kg/m3, suitable for railway subgrade insulation.

Benefits of technology

Significantly improves the compressive strength, flexural strength and thermal conductivity of fiber foam concrete, improves thermal insulation performance, meets the durability and stability requirements of railway roadbed, and is lightweight, pressure-resistant and waterproof, suitable for factory prefabrication and on-site Assemble.

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Abstract

The invention discloses a fiber foamed concrete and a preparation method thereof. The fiber foamed concrete comprises the following raw materials in parts by weight: 5290 parts of cement, 4965 parts of water, 1.361 part of foaming solution, 1.2964 part of fly ash and 10 parts of fiber. The preparation method comprises the following steps: proportionally weighing the components; sequentially adding the cement and fly ash into a stirrer, proportionally weighing the water, uniformly stirring the mixture by the stirrer, and adding the fiber; preparing and adding the foaming solution; gradually adding the foam into the mixture, and continuously stirring until all the components are uniformly mixed; pouring the mixture into a mold on which lubricating oil is brushed, and curing in a curing chamber; after 24 hours, removing the mold; and respectively curing for 3 days, 7 days and 28 days for experimental detection. The fiber foamed concrete has the advantages of favorable thermal insulation property, favorable compression resistance and favorable bending resistance, and is applicable to a railway bed strengthening layer.
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Citation Information

Patent Citations

  • Foaming agent for foam concrete, and preparation method and application of foaming agent

    CN102603353A

  • Method for preparing fiber-enhanced foam concrete

    CN103553506A

  • Waste residue concrete cored block

    CN203034669U

  • Method of manufacturing and analyzing a composite building

    US20040204903A1

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