Description

The concept of welded steel fabric/ mesh was first proposed in 1901, while the first major application was in 1908. In 1922, it was tested to be the sufficiently suitable material for roads of heavy traffic. By the close of World War II, it showed its strength because it requires less labor and time. It was seen as the perfect reinforcing material to help Europe re-build after the war. Before the turn of the century, it was accepted as a viable form of concrete reinforcement in building. It has also enjoyed great usage in other projects like airport runways and a number of architecturally groundbreaking buildings.

This reinforcement welded wire mesh panels are made of ribbed steel bars bonded via spot welding for slab and wall constructions. The ribbed steel rod used can improve bonding to the concrete and minimize any concrete cracking that may occur as a result of concrete shrinkage. This feature enables the ribbed steel weld mesh widely used as building materials for block slab structure reinforcing, and hollowed slabs reinforcement, building wall reinforcement and support wall reinforcement. In practical uses, it is commonly used with bar chairs as supports.

Materials and Types:

Ribbed steel bar mesh can be divided into three types according to materials: Hot dipped galvanized, electro galvanized or stainless steel. It can be divided into two types according to steel bar sizes used: heavy type (diameter of bar or rod 12mm minimum) and light type (diameter of rebar rods from 3mm up to 10mm). Ribbed steel welded mesh can be divided into square hole and rectangular hole according to the opening types.

Technical Parameters

STANDARD		Re YIELD STENGTH Mpa/(ksi)	Rm TENSILE STRENGTH Mpa/(ksi)	Rm/Re RATIO	ELONGATION (Reduction of area)	SHEAR STRENGTH (N/mm2)	BEND TEST


ASTM Standard Specification for Steel wire/ Steel Welded Wire Reinforcement,Plain,for Concrete	ASTM A 82M-07	Rp0.5≥485(70)	≥550(80)	≥1.05	(Z≥30%)	-	D=2d

	ASTM A185M-06≥φ3.15mm	≥450(65)	≥515(75)	≥1.05	(Z≥30%)	≥241xSmax	D=2d

BS 4482：2005 Steel Wire for the Reinforcement of Concrete	500 <8mm	≥500	≥510	≥1.02	Agt≥1.0%	-	D=4d

	500 ≥8mm	≥500	≥525	≥1.05	Agt≥2.5%

BS 4483：2005 Steel Fabric for the Reinforcement of Concrete	B500A	≥485	≤650	≥1.03 (ifd<8mm,≥1.02)	Agt≥2.5 (ifd<8mm,≥1.0)	≥125xSmax	D=4d

	B500B	≥485	≤650	≥1.03 (ifd<8mm,≥1.02)	Agt≥4.0%

	B500C	≥485	≤650	≥1.13	Agt≥6.0%

BS 4449：2005 Steel for the Reinforcement of Concrete-Weldable Reinforcing Steel	B500A	≥500	≤650	≥1.05 (ifd<8mm,≥1.02)	Agt≥2.5% (ifd<8mm,≥1.0)	≥121xSmax	if d≤16(D=4d) if d>16(D=7d)

	B500B	≥500	≤650	≥1.08	Agt≥5.0%

	B500C	≥500	≤650	≥1.15,≤1.35	Agt≥7.5%

AS/NZS 4671：2001 Steel Reinforcing Materials	500L	≥500	≤750	≥1.03	Agt≥1.5%	≥250xSmax	D=4d

	500N	≥500	≤650	≥1.08	Agt≥5.0%

	500E	≥500	≤600	≥1.15,≤1.4	Agt≥10.0%

SS 561：2010 Steel Fabric for the Reinforcement of Concrete	500A	≥485	≤650	≥1.03	Agt≥2%	≥250xSmax	D=4d

	500B	≥485	≤650	≥1.06	Agt≥4.0%

	500C	≥485	≤650	≥1.13	Agt≥6.0%

Application

Welded steel fabric/ mesh has been widely adopted in the construction industry, not only for prefabricated concrete components, but also applied more frequently to cast-in-place concrete structures, such as:

1. Transportation Industry

Highway deck pavement, concrete pavement for soft ground sections, base plates of high-speed rail tracks, surface crack prevention on bridge piers, concrete ground for toll plazas, concrete ground for railway platforms, stations, and cargo areas, concrete ground for airport runways, cargo areas, and parking lots, tunnel lining, etc;

2. Municipal Engineering

Municipal bridge and overpasse's deck pavement, concrete pipe galleries, drainage channels, underground culverts, fences, slope protection, etc.

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Concrete Steel Wire Mesh

Description

Technical Parameters

Application