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Light-weight high-performance concrete for fabricated bridge and preparation method of light-weight high-performance concrete

A technology for high-performance concrete and bridges, applied in clay preparation devices, chemical instruments and methods, manufacturing tools, etc., can solve the problems of poor durability and heavy quality, and achieve the effects of good durability, light weight and wide application

Active Publication Date: 2022-04-05
中路黄河(山西)交通科技集团有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the lack of performance of traditional concrete prefabricated components, and provides a light-weight, high-strength, durable concrete material and its preparation method to solve the problems of heavy quality and poor durability of precast concrete at present, and can Effective use of waste materials for the purpose of protecting the environment

Method used

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  • Light-weight high-performance concrete for fabricated bridge and preparation method of light-weight high-performance concrete
  • Light-weight high-performance concrete for fabricated bridge and preparation method of light-weight high-performance concrete
  • Light-weight high-performance concrete for fabricated bridge and preparation method of light-weight high-performance concrete

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Experimental program
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Effect test

Embodiment 1

[0048] Embodiment 1 A preparation method of lightweight high-performance concrete for prefabricated bridges, comprising the following steps:

[0049] (1) Screening of vanadium tailings ceramsite: screening vanadium tailings ceramsite with a particle size of 10mm, wherein the cylinder compressive strength of ceramsite is ≥6MPa, water absorption ≤10%, and bulk density ≤800kg / m 3 .

[0050] (2) Interface treatment on the surface of ceramsite:

[0051] First, use compressed air to dedust the surface of the ceramsite;

[0052] Then, prepare a water-based epoxy resin emulsion: mix component A and component B in a mass ratio of 2:1, and stir until a uniform emulsion is formed, that is, a water-based epoxy resin emulsion. Among them, component A is mixed by the following raw materials in parts by weight: 90 parts of water-based epoxy resin, 10 parts of epoxy reactive diluent BGE, 0.1 part of dispersant trichlorotrifluoroethane, polydiethylene glycol with a molecular weight of 15000 ...

Embodiment 2

[0064] Embodiment 2 A preparation method of lightweight high-performance concrete for prefabricated bridges, comprising the following steps:

[0065] (1) Screening of vanadium tailings ceramsite: screening vanadium tailings ceramsite with a particle size of 10mm, wherein the cylinder compressive strength of ceramsite is ≥6MPa, water absorption ≤10%, and bulk density ≤800kg / m 3 .

[0066] (2) Interface treatment on the surface of ceramsite:

[0067] First, use compressed air to dedust the surface of the ceramsite;

[0068] Then, prepare a water-based epoxy resin emulsion: mix component A and component B in a mass ratio of 2:1, and stir until a uniform emulsion is formed, that is, a water-based epoxy resin emulsion. Among them, component A is mixed with the following raw materials by weight: 90 parts of water-based epoxy resin, 10 parts of epoxy reactive diluent BGE, 0.1 part of dispersant trichlorotrifluoroethane, and poly(difluoroethylene) with a molecular weight of 15000 as...

Embodiment 3

[0081] Embodiment 3 A preparation method of lightweight high-performance concrete for prefabricated bridges, comprising the following steps:

[0082] (1) Screening of vanadium tailings ceramsite: screening vanadium tailings ceramsite with a particle size of 15mm, wherein the cylinder compressive strength of ceramsite is ≥6MPa, water absorption ≤10%, and bulk density ≤800kg / m 3 .

[0083] (2) Interface treatment on the surface of ceramsite:

[0084] First, use compressed air to dedust the surface of the ceramsite;

[0085] Then, prepare the water-based epoxy resin emulsion: mix and stir the components A and B at a mass ratio of 2:1 until a uniform emulsion is formed, that is, the water-based epoxy resin emulsion. Among them, component A is mixed with the following raw materials by weight: 90 parts of water-based epoxy resin, 10 parts of epoxy reactive diluent BGE, 0.1 part of dispersant trichlorotrifluoroethane, and poly(difluoroethylene) with a molecular weight of 15000 as a...

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Abstract

The invention belongs to the technical field of building materials, and particularly discloses lightweight high-performance concrete for a fabricated bridge and a preparation method of the lightweight high-performance concrete. Each cubic meter of the lightweight high-performance concrete for the fabricated bridge is prepared from the following raw materials by weight: 200 to 300 kg of cement, 50 to 150 kg of compound superfine powder, 600 to 800 kg of quartz sand, 400 to 500 kg of ultralight ceramsite, 5 to 10 kg of polycarboxylic acid superplasticizer and 100 to 200 kg of water, the specific compound superfine powder is prepared, and meanwhile, the solid waste ultralight ceramsite is subjected to surface modification and other operations, so that the purpose of the lightweight high-performance concrete for the fabricated bridge is achieved. The concrete prepared by the invention has the performance advantages of light weight, compactness, high strength, good durability and the like, can obviously reduce the self weight of the structure and reduce the foundation bearing, and can also be applied to the functional fields of heat insulation, noise reduction and the like.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a lightweight high-performance concrete for a prefabricated bridge and a preparation method thereof. Background technique [0002] In order to promote the coordinated development of intelligent construction and construction industrialization, accelerate the transformation of construction methods, and promote the high-quality development of the construction industry, my country is vigorously developing prefabricated buildings and promoting the application of prefabricated concrete components. The promotion and application of prefabricated concrete components will promote the establishment of a professional, large-scale, and information-based production system based on standardized building parts, significantly improve the level of industrialization, digitalization, and intelligence in construction, significantly increase labor productivity, and greatly reduce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/12C04B18/02B28B1/093B28B11/24B28C5/00C04B111/40C04B111/20
CPCY02W30/91
Inventor 陈帅张影王宏伟祝天晴杨汉臣刘哲刘力源张恒基赵璇王建业
Owner 中路黄河(山西)交通科技集团有限公司
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