Production process for reactive powder concrete sleeper structural member

A technology for reactive powder and structural components, which is applied in the field of production technology of reactive powder concrete sleeper structural components, can solve problems such as restricting the large-scale production and application of reactive powder concrete sleepers, achieves improved strength and durability, is easy to implement, and solves process bottlenecks Effect

Pending Publication Date: 2020-11-10
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, the active powder concrete cable channel cover plate has been used in large-scale production, but for the newly developed products, especially the newly developed active powder concret

Method used

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  • Production process for reactive powder concrete sleeper structural member
  • Production process for reactive powder concrete sleeper structural member
  • Production process for reactive powder concrete sleeper structural member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A production process of active powder concrete sleeper structural components, specifically comprising the following steps:

[0048] (1) Inspection: Send the steel molds of sleeper structural components, prestressed steel bars, tooling accessories, process accessories and reactive powder concrete raw materials into the site and inspect them;

[0049] Among them, the active powder concrete raw material is composed of the following raw materials in parts by weight: 700 parts of ordinary portland cement, 200 parts of admixture, 1200 parts of quartz sand, 120 parts of steel fiber, 60 parts of polycarboxylate superplasticizer and water 120 copies;

[0050] The specific process of sending to the site and inspection is as follows: figure 2 As shown, including: investigation and sampling inspection → selection of qualified suppliers → submission of material plan → organization of materials entering the site → preliminary inspection (clear out of the site for materials that fai...

Embodiment 2

[0069] A production process of active powder concrete sleeper structural components, specifically comprising the following steps:

[0070] (1) Inspection: Send the steel molds of sleeper structural components, prestressed steel bars, tooling accessories, process accessories and reactive powder concrete raw materials into the site and inspect them;

[0071] Among them, the active powder concrete raw material is composed of the following raw materials in parts by weight: 680 parts of ordinary portland cement, 190 parts of admixture, 1200 parts of quartz sand, 90 parts of steel fiber, 55 parts of polycarboxylate superplasticizer and water 120 copies;

[0072] The specific process of sending to the site and inspection is as follows: figure 2 As shown, including: investigation and sampling inspection → selection of qualified suppliers → submission of material plan → organization of materials entering the site → preliminary inspection (clear out of the site for materials that fail...

Embodiment 3

[0091] A production process of active powder concrete sleeper structural components, specifically comprising the following steps:

[0092] (1) Inspection: Send the steel molds of sleeper structural components, structural steel bars, tooling accessories, process accessories and reactive powder concrete raw materials into the site and inspect them;

[0093] Among them, the active powder concrete raw material is composed of the following raw materials in parts by weight: 700 parts of ordinary portland cement, 210 parts of admixture, 1180 parts of quartz sand, 140 parts of steel fiber, 55 parts of amino superplasticizer and 120 parts of water ;

[0094] The specific process of sending to the site and inspection is as follows: figure 2 As shown, including: investigation and sampling inspection → selection of qualified suppliers → submission of material plan → organization of materials entering the site → preliminary inspection (clear out of the site for materials that fail the prel...

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PUM

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Abstract

The invention discloses a production process for a reactive powder concrete sleeper structural member. The production process specifically comprises the following steps of inspection, assembly, tensioning, mixing, distribution, vibration, steam curing, releasing, form removal and the like. The production process adopts a planar assembly line operation method, has the advantages of easiness in implementation, simplicity and convenience in operation, high production efficiency and the like and solves the process bottleneck restricting large-scale industrial production of reactive powder concreteproducts, and is suitable for production of various reactive powder concrete products, especially for production of reactive powder concrete sleeper structural members adopting prestress structural design.

Description

technical field [0001] The invention relates to the technical field of new building materials, in particular to a production process of active powder concrete sleeper structural components. 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 has been widely valued by the international civil engineering community. In recent years, engineering application examples on different occasions have appeared in Europe, North America and South ...

Claims

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Application Information

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IPC IPC(8): B28B23/04B28B13/02B28B1/52B28B11/24C04B28/04
CPCB28B1/523B28B11/245B28B13/026B28B23/043C04B28/04C04B2201/50C04B14/06C04B14/48C04B14/062C04B18/08C04B18/146C04B2103/302
Inventor 周之琪尹会军李杰民王壮
Owner 北京惠诚基业工程技术有限责任公司
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