Energy-saving production process of concrete duct piece

A production process and concrete technology, which is applied in the energy-saving production process of concrete segments, can solve the problems of immature production level of concrete segments in horseshoe-shaped tunnels, and achieve the effects of saving production resources, improving impermeability, and increasing yield

Pending Publication Date: 2022-03-15
广东新奔达建材实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the construction technology of segments in tunnels and the production level of double-circle high-precision precast concrete segments have reached the international leading level, but the production level of concrete segments for horseshoe-shaped tunnels has not yet matured in China

Method used

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  • Energy-saving production process of concrete duct piece

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Effect test

Embodiment 1

[0029] The energy-saving production process of concrete segments includes step 1, making and processing steel cages; step 2, opening the mold, cleaning the mold, and spraying release agent; step 3, hoisting the steel cage into the mold; step 4: completing the mold closing and putting the concrete into the mold Vibration; Step 5: Cleaning and flattening the die surface; Step 6: Steam curing in the steam curing room; Step 7: Demolding of the segment; Step 8: Defect treatment and installation of water stop strips;

[0030] Among them, in the above step 1, the staff selects the steel bars for making steel cages and removes the oil stains and hammers the peeling skin before processing. The steel bars after derusting are cut according to the size and marked. The steel bar ingredient list or technical disclosure document is carried out, and it is strictly forbidden to change the production method at will and complete the production of the steel cage;

[0031] In the above step 2, the...

Embodiment 2

[0039] The steel bars in step 1 must be inspected according to the specified frequency before they can be used, and the use of unqualified materials is prohibited; the quality of the joints of the steel bars, the quality of the welding of the steel bars, the frequency inspection is qualified, and the welded joints of the steel bars meet the specifications and design requirements; the spacing of the main bars of the steel cage , Strictly control the spacing of the main ribs, and the spacing deviation is controlled within ±0.5d; the mold material in the second step is selected from high-precision steel molds, so that the mold has small deformation, high precision, and many cycles during use, increasing the service life; In step 3, before the steel bar cage of the crane is put into the mold, the concrete protective layer pad should be installed according to the specified position. The concrete of the pad should have the same label as the concrete of the segment. ), weld the embedd...

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Abstract

The invention discloses an energy-saving production process for a concrete pipe piece. The energy-saving production process comprises the following steps: step 1, manufacturing and processing a reinforcement cage; 2, opening the mold, cleaning the mold, and spraying a release agent; thirdly, the reinforcement cage is hoisted into a mold; fourthly, mold closing is completed, and concrete is put into the mold to be vibrated; 5, the die orifice surface is cleaned and flattened; step 6, steam curing in a steam curing room; seventhly, the duct piece is demolded; and 8, defect treatment and water stop strip installation are carried out. According to the invention, early plastic shrinkage and settlement cracks of concrete and cement mortar can be effectively controlled, impermeability, crushing resistance and impact resistance of the concrete are greatly improved, toughness and wear resistance of the concrete are enhanced, production resources are saved, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of application of concrete segments, in particular to an energy-saving production process for concrete segments. Background technique [0002] As a reinforced concrete component with a standard shape, the segment has high precision and performance requirements for the processing quality of the segment due to the functional requirements of underground engineering. The industrialized shaping process can give full play to the technical and economic advantages of precast concrete. And characteristics, to ensure the processing accuracy requirements of the segment and the quality stability of the product, to achieve the purpose of improving product quality and economic benefits. [0003] After retrieval, the patent No. is CN 03693926A A kind of corrosion-resistant subway reinforced concrete segment, which is characterized in that it is composed of steel skeleton and corrosion-resistant concrete; wherein, the steel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/04B28B11/22B28B11/08B28B11/24
CPCB28B1/045B28B11/22B28B11/08B28B11/0845B28B11/245
Inventor 彭建雄赵素波
Owner 广东新奔达建材实业有限公司
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