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This specification deals with various designs of zinc-coated steel pipe winding mesh to be used as reinforcement for the concrete applied in the manufacture of negative buoyancy pipe needed for laying pipe in marshes or in water. This mesh can also be used as reinforcement for concrete applied to pipe as a bendable or nonbendable mechanical protective coating when laying pipe in a harsh environment. The types of fabric to be used are classified as TW, WW, WW-C, WW-N, and WW-S. The steel from which the wire is produced shall be made by any commercially accepted steelmaking process and the zinc coating shall either be of a Class 1 or a regular coating. Hexagonal woven meshes shall be manufactured by twisting wires to form a series of openings that are hexagonal in shape while welded meshes shall be obtained by welding a series of parallel longitudinal wires to transverse wires to form rectangular openings. Stripping and tensile tests shall be performed to determine the coating weight and tensile compliance of the specimen.

welded mesh chain link fencing reinforcing mesh temporary fencing welded mesh panel steel grating welded fencing

1. Scope

1.1 This specification covers various designs of welded wire mesh or twisted (woven) hexagonal wire mesh, zinc coated before fabrication, to be used as reinforcement for the concrete applied in the manufacture of negative buoyancy pipe needed for laying pipe in marshes or in water. The mesh is also used as reinforcement for concrete applied to pipe as a bendable or nonbendable mechanical protective coating when laying pipe in a harsh environment.

1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

2. Referenced Documents

A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A641/A641M Specification for Zinc-Coated (Galvanized) Carbon Steel Wire
A90/A90M Test Method for Weight (Mass) of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
A902 Terminology Relating to Metallic Coated Steel Products
B6 Specification for Zinc

Index Terms
concrete reinforcement; mesh (for steel pipe/tube); steel wire; zinc-coated steel wire; Concrete reinforcement--specifications; Mesh (for steel pipe); Negative buoyancy pipe; Steel pipe--specifications; Steel wire--specifications; Winding mesh (for steel pipe); Zinc-coated steel pipe--specifications; Zinc-coated steel wire--specifications; ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

Reinforcing Mesh’s Specification

Reinforcing Mesh of Width (mm) Inner Dia of Reinforcing mesh roll (mm) Outer Dia of Reinforcing mesh roll (mm)
Vertical Wire Dia(mm) Line Wire Dia(mm)

1.80

1.60

190±15

200±10

1050±50

2.10

1.80

190±15

200±10

1050±50

2.55

2.00

190±15

200±10

1050±50

2.85

2.10

190±15

200±10

1050±50


Direction of Mesh Aperture Size(mm) Tolerance(mm) Outcrop’s Length of Both Edges (mm)

Vertical

25.4,50.8

±2

 

Horizontal

67

±5

2.5

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ADD:North Of BeiXin Road, Anping County, HeBei Province, China.
Phone: +86-18632826731
             +86-13393185133
TEL: +86-318-8063266
FAX: +86-318-8063266

E-mail:
sales@weldmeshfencing.com
URL: http://www.weldmeshfencing.com

 
 
ADD:North Of BeiXin Road, Anping County, HeBei Province, China.
Phone: +86-18632826731  +86-13393185133     TEL: +86-318-8063266    FAX: +86-318-8063266
E-mail: sales@weldmeshfencing.com info@china-metalwiremesh.com  URL: http://www.weldmeshfencing.com © Anping Changhao Roberts Weaving Factory
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