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Welded Fabric Reinforcement

Product Description

Product Description

WELDED FABRIC REINFORCEMENT

Welded mesh fabric used for the reinforcement of concrete is manufactured to SANS 1024:2012 and other international standard specifications.

Features

· Welded mesh reinforcing sheets are the most commonly used form of reinforcing in concrete and is particularly suited for flat slab construction and concrete surface beds. Other design applications would be:

o Retaining walls

o Shear walls

o Beams and columns.

o Concrete Paving overlays

o Suspended floor slabs

o Swimming pool and sprayed concrete reinforcing

· Welded mesh sheets can be detailed as either flat or bend sheets depending on the contract requirements

· Welded mesh sheets can be fabricated to non-standard sizes depending on contract requirements.

· Welded mesh reinforcement reduces construction time considerably by eliminating the tying of reinforcing bars on site.

· SANS 1024:2012 designated fabric mats are standard welded reinforcing sheets and can be scheduled simply by reference to the fabric type, sheet dimensions and in instances where bend material is required the bending shape code. (The reference is the nominal mass of the fabric in kg/m² x 100)

· The cold-rolled deformed wire used in welded mesh reinforcement fabric has a minimum characteristic strength (0.2% proof stress) of 485 MPa compared to 450 MPa for high tensile rebar. Reinforcing fabric may be used at higher stresses than high tensile rebar resulting in material saving of up to 8%.

Important design criteria

Placing of fabric

· In order to obtain the best results when using fabric reinforcement, special care must be taken to ensure that the mesh is positioned and maintained at the correct depth after the concrete placing. This can be achieved by using stools or plastic/concrete spacers.

· Ideally fabric must be located 50 mm from the top of the slab (Check Engineer’s Specification) and where bottom steel is required, it must also be supported 50 mm above the substrate.

Lapping of fabric sheets

It is recommended that in calculating the lap requirements for surface beds welded fabric reinforcement that the 25 x diameter + 150 mm or 300 mm, whichever is the greatest (Check Engineer’s requirements)

Quality

Our welded mesh fabric is manufactured under strict ISO 9001:2008 quality controls with all standards conforming to the requirements of SANS 1024:2012.

Standard Sheets Sizes: 6 m x 2.4 m. Standard Roll sizes: 60 m x 2.4 m

Standard Specification

Welded mesh fabric reinforcement standard specifications
	Fabric	Mesh size		Wire sizes		Cross sectional		Nominal
		Nominal Wire Pitch				area/m width		mass/m
	Ref No	Main mm	Cross mm	Main mm	Cross mm	Main mm	Cross mm	Kg	Supplied in
Square Mesh Fabric	888	200	200	12	12	566	566	8.88	Sheets Only
	746	200	200	11	11	475	475	7.46
	617	200	200	10	10	393	393	6.17
	500	200	200	9	9	318	318	5
	395	200	200	8	8	251	251	3.95
	311	200	200	7.1	7.1	198	198	3.11
	245	200	200	6.3	6.3	156	156	2.45
	193	200	200	5.6	5.6	123	123	1.93	Sheets/Roll
	100	200	200	4	4	63	63	1
Design Mesh Fabric	1085	100	200	12	8	1131	251	10.85	Sheets Only
	943	100	200	11	8	951	251	9.43
	772	100	200	10	7.1	786	198	7.72
	655	100	200	9	7.1	636	198	6.55
	517	100	200	8	6.3	503	156	5.17
	433	100	200	7.1	6.3	396	156	4.33
	341	100	200	6.3	5.6	312	123	3.41
	289	100	200	5.6	5.6	246	123	2.89
Longitudinal Mesh Fabric	278	100	300	6.3	4	312	42	2.78	Sheets Only
	226	100	300	5.6	4	246	42	2.26
	133	100	300	4	4	126	42	1.33	Sheet/Roll
Special Mesh Fabric	200	100	100	4	4	126	126	2	Sheets/Roll
	156	100	100	3.55	3.55	99	99	1.56

Design Data: Mass & Cross sectional area
Dia (mm)	Area (mm)	Mass (kg/m)	Wire Spacing (mm)
			50	75	100	125	150	175	200	225	250	275	300	Dia
12	113.1		2262	1508	1131	905	754	646	566	503	452	411	377	12
		0.89	17.76	11.84	8.88	7.1	5.92	5.07	4.44	3.95	3.55	3.23	2.96
11	95.05		1901	1267	950	760	634	583	475	422	380	346	317	11
		0.75	14.92	9.95	7.46	5.97	4.97	4.26	3.73	3.32	2.98	2.71	2.49
10	78.55		1571	1047	786	628	524	449	393	349	314	286	262	10
		0.62	12.34	8.23	6.17	4.94	4.11	3.53	3.09	2.74	2.47	2.24	2.06
9	63.63		1273	848	636	509	424	364	318	283	255	231	212	9
		0.5	9.99	6.67	4.99	3.99	3.33	2.86	2.5	2.22	2	1.82	1.67
8	50.27		1005	670	503	402	335	287	251	223	201	183	168	8
		0.4	7.9	5.27	3.95	3.16	2.63	2.26	1.98	1.76	1.58	1.44	1.32
7.1	39.6		792	528	396	317	264	226	198	176	158	144	132	7.1
		0.31	6.22	4.15	3.11	2.49	2.07	1.78	1.56	1.38	1.24	1.13	1.04
6.3	31.18		624	416	312	249	208	178	156	139	125	113	104	6.3
		0.25	4.9	3.27	2.45	1.96	1.63	1.4	1.23	1.09	0.98	0.89	0.82
5.6	24.63		493	328	246	197	164	141	123	109	99	90	82	5.6
		0.19	3.86	2.57	1.93	1.54	1.29	1.11	0.97	0.86	0.78	0.71	0.64
4	12.57		251	168	126	101	84	72	63	56	50	46	42	4
		0.1	1.98	1.33	1	0.8	0.67	0.57	0.5	0.44	0.4	0.36	0.33

Example

	Cross section area (mm²/m)	Mass (kg/m²)
Longitudinal wires 8 mm @ 100 mm spacings:	503	3.95
Cross wires 6.3 mm @ 200 mm spacings:	156	1.22
TOTAL UNIT MASS KG/m²		5.17