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Composite fiber macromolecular reinforced concrete sound barrier and manufacturing method thereof

A technology for reinforcing concrete and composite fibers, which is applied in the field of traffic noise barriers, can solve the problems of high sound barrier quality, poor sound insulation effect, and poor durability, and achieve the effects of low cost, light weight and good durability.

Active Publication Date: 2015-10-21
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing concrete sound barriers have too large quality, poor mechanical properties, poor sound insulation effect, poor durability, etc.

Method used

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  • Composite fiber macromolecular reinforced concrete sound barrier and manufacturing method thereof
  • Composite fiber macromolecular reinforced concrete sound barrier and manufacturing method thereof
  • Composite fiber macromolecular reinforced concrete sound barrier and manufacturing method thereof

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Embodiment

[0025] Trial-manufacture 2-meter concrete sound barrier unit panels (1960×500×120mm) with the composite fiber polymer reinforced concrete sound barrier formula of the present invention, wherein the unit panel structures are all panels (with steel mesh inside)+sound-absorbing layer+back Panel (with steel mesh inside), the relevant dimensions are: panel 30mm + sound-absorbing layer 60mm + back panel 30mm, the relevant formula is shown in Table 1.

[0026] Table 1 Raw material formula of composite fiber polymer reinforced concrete sound barrier

[0027]

[0028]

[0029] Remarks: In Example 4, the quality grade of fly ash is grade II, the grade of mineral powder is S75, and the particle density of silica fume is 2.2g / cm 3 ; Steel fiber length 30mm, diameter 0.7mm; polypropylene fiber length 12mm.

[0030] Preparation steps:

[0031] (1) Mold making: first soak the ceramsite for 30-90 minutes, then mix and stir river sand, cement, fly ash, silica fume and mineral powder fo...

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Abstract

The invention discloses a composite fiber macromolecular reinforced concrete sound barrier and a manufacturing method thereof. Concrete raw materials comprise ceramsite, sand, gel materials, reinforcing fibers, a water reducing agent, polymer emulsion and water. The gel materials comprise cement, coal ash, silicon ash and mineral powder. The reinforcing fibers are steel fibers and / or polypropylene fibers. The polymer emulsion is acrylate copolymer emulsion or butenolide copolymer emulsion. According to the manufacturing method, the ceramsite is pre-soaked, and after the other raw materials are added in sequence and stirred, pouring, grout collecting, plastering and hardening are performed. Through the combination of lightweight aggregate, sound absorption materials, organic fibers, inorganic fibers, macromolecular reinforcing agents and other materials in the formula, the composite fiber macromolecular reinforced concrete sound barrier is light in weight, good in mechanical property, good in sound absorption and insulation effect, low in cost, good in durability and environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of traffic noise barriers, in particular to a composite fiber polymer reinforced concrete sound barrier and a preparation method thereof. Background technique [0002] The sound barrier is a facility inserted between the sound source and the receiver, which can make the sound source transmission have a significant additional attenuation, thereby reducing the noise impact in a certain area where the receiver is located. [0003] At present, conventional C30 concrete formula and lightweight concrete formula are mainly used for railway bridge insert-type non-metallic sound barrier unit plates. The former unit panel is too heavy, has too high surface density, high transportation and installation costs, and poor mechanical properties; the latter unit panel is light in weight, but has low bending strength, poor impact resistance, and poor durability, which seriously affects the quality of the sound barrier. Safet...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/04C04B16/06
Inventor 胡喆杜永新王忠合龚平雷彬邱廷琦胡文萍刘敏张根
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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