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A production process of active powder concrete sound barrier structural components

A technology of active powder and production process, which is applied in the direction of manufacturing tools, ceramic molding machines, etc., and can solve the problems that restrict the large-scale production and application of active powder concrete sound barriers

Active Publication Date: 2018-04-27
北京惠诚基业工程技术有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, active powder concrete cable tray cover plates have been used in large-scale production, but for newly developed products, especially the newly developed active powder concrete sound barrier components, there is no mature production process for large-scale industrial production, which restricts Large-scale production and application of reactive powder concrete sound barrier

Method used

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  • A production process of active powder concrete sound barrier structural components
  • A production process of active powder concrete sound barrier structural components

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0116] A reactive powder concrete sound barrier structural member is divided into prestressed rib columns and a back plate.

[0117] This process is used to form a 90mm×180mm×2950mm prestressed rib column as an example.

[0118] The active powder concrete has a compressive strength of 160MPa, a flexural strength of 22MPa, a modulus of elasticity of 48GPa, a water-binder ratio of not more than 0.2, and a slump of 160-180mm. The trial mix ratio is 670 kg of ordinary silicon 42.5 cement; i o 2 194 kg of admixture with an average particle size of 0.31 μm and a maximum particle size of 0.5 μm; 1,210 kg of quartz sand with a particle size of 0.16-1.25 mm; 55 kg of admixture; 135 kg of water; steel with a diameter of 0.16-0.3 mm Fiber 175 kg.

[0119] The prestressed reinforcement adopts φ7 steel wire with a tensile strength of 1670MPa, and its quality meets the requirements of "Steel Wire for Prestressed Concrete" (GB / T5223-2002).

[0120] The rib column mold adopts a steel mold...

Embodiment 2

[0131] An active powder concrete sound barrier structural member is divided into a rib column and a back plate.

[0132] Use this process to form 80mm×120mm×2950mm rib column as an example.

[0133]The active powder concrete has a compressive strength of 160MPa, a flexural strength of 22MPa, a modulus of elasticity of 48GPa, a water-binder ratio of not more than 0.2, and a slump of 160-180mm. The trial mix ratio is 670 kg of ordinary silicon 42.5 cement; i o 2 194 kg of admixture with an average particle size of 0.31 μm and a maximum particle size of 0.5 μm; 1,210 kg of quartz sand with a particle size of 0.16-1.25 mm; 55 kg of admixture; 135 kg of water; steel with a diameter of 0.16-0.3 mm Fiber 175 kg.

[0134] The structural reinforcement adopts HPB300φ6, and its quality conforms to "Steel for Reinforced Concrete-Part 1: Hot-rolled Smooth Round Reinforcing Bar" (GB1499.1-2007).

[0135] The stressed steel bar adopts HRB400φ16, and its quality conforms to "Steel for Rei...

Embodiment 3

[0146] An active powder concrete sound barrier structural member is divided into a rib column and a back plate.

[0147] Using this process to form a 994mm × 500mm × 25mm back panel with a reinforced mesh as an example.

[0148] The active powder concrete has a compressive strength of 130MPa, a flexural strength of 16MPa, a modulus of elasticity of 46GPa, a water-binder ratio of not more than 0.2, and a slump of 160-180mm. The trial mix ratio is 601 kg of ordinary silicon 42.5 cement; i o 2 167 kg of admixture with an average particle size of 0.31 μm and a maximum particle size of 0.5 μm; 1345 kg of quartz sand with a particle size of 0.16-1.25 mm; 50 kg of admixture; 121 kg of water; steel with a diameter of 0.16-0.3 mm Fiber 109 kg.

[0149] The steel mesh reinforcement adopts HPB300φ6, and the quality conforms to "Steel for Reinforced Concrete - Part 1: Hot Rolled Smooth Round Steel Bar" (GB1499.1-2007).

[0150] The back plate mold adopts a steel mold, which has suffic...

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Abstract

The invention discloses a production process method of an active powder concrete sound barrier structural component, and belongs to the technical field of the production process method of active powder concrete products in new building materials. Including entry and inspection; forming molds; placing steel bars and process tooling accessories; trial mixing active powder concrete mixture; fabric; vibration molding; steam or hot water curing for formed components according to curing temperature, humidity, and time control requirements; Formwork removal; inspection and storage according to storage requirements; the production process method of the present invention is suitable for the production of various active powder concrete products because it is easy to implement, easy to operate and high in production efficiency, especially suitable for a kind of prestressed structure design Production of reactive powder concrete noise barrier components.

Description

technical field [0001] The invention relates to a production process method of an active powder concrete sound barrier structural component, which belongs to the technical field of manufacturing process of new building materials, and specifically belongs to the technical field of production process method of active powder concrete product manufacturing in the new building material. Background technique [0002] Reactive Powder Concrete (RPC) is a new type of concrete material developed by France in the 1990s with many advantages such as high strength, high toughness, and high durability. It is composed of graded quartz sand, cement, admixtures, admixtures and other main parts. In order to improve the toughness and ductility, high-strength special steel fibers are added, and the microstructure of the finished product is improved by high-temperature steam curing during the condensation and hardening process. . Due to its ultra-high strength and other excellent properties, it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04B28B11/24
Inventor 都清周之琪尹会军宋宏德
Owner 北京惠诚基业工程技术有限责任公司