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Neoprene Bearing Pads

Neoprene Bearing Pads

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Neoprene Bearing Pads

Neoprene/ Bridge Bearing pads which are extensively in bridge structures and prestressed and precast concrete buildings. Also used in industrial machinery and heavy equipment applications, Elastomeric Bridge Bearings are designed and manufactured as per IRC:83 (Part II)-1987 with the latest amendments, to meet the requirements MoRT and H specifications for Road and Bridge Works to Section No 2000 To clause number 2005 (Elastomeric Bearings) and to International Union of Railways Code UIC 772 R (Use of Rubber Bearings for Railways Bridges). AASHTO and BS standards.

Material Properties

Parameter

Properties

Hardness(IRHD)

60+5

Minimum Tensile strength (MPa)

17

Minimum Elongation at Break (%)

400

Maximum Compression set (%)

35 (for 24hrs @100+1oC)

Accelerated Ageing (70hrs@100+1oC)


-Max change in hardness(IRHD)

+15

-Max change in tensile strength(%)

-15

-Max change in Elongation(%)

-40

Shear Modulus range(MPa)

0.80 MPa to 1.20 MPa

Minimum Adhesive strength of Elastomers to steel plate(KN/M)

7.0

Ozone Resistance test @20% strain, 40+1oC, 96 Hrs@50ppm O3 by vol.

No cracking

Maximum Ash content(%)

5

Laminate

Mild steel

Polymer

Poly Chloroprene

Minimum Polymer content

60%