Advantages of Using Flexible Rubber Expansion Joints

Absorbs Vibration, Noise and Shock

Want more information on Rubber Joints? Feel free to contact us.

Sound travelling axially through Expansion Joints is stopped at once. Water hammer, pumping impulses and waterborne noises are absorbed by the molded, lightweight, thin-wall structure.

Easy to Install, Easy to Remove

Loose flanges, no need of gasket or packing, and elastic spherical body make Expansion Joints easy to install or remove.

Higher Burst Strength

Spherical shape is stronger than cylindrical shape or other configuration. Thus under pressure, Sure Flow Expansion Joints are 4 times as strong as cylindrical joints. Additionally, our products are made of the best suitable material, and hence their burst pressure is much higher than those of other makes.

Wide Service Range

Made with chemical elastomers such as Neoprene.

Greater Movements are Available

Axial compression and elongation, deflection and angular movements will be greater.

Suitable for Suction and Delivery

Owing to its excellent molding technique with its tough chemical fiber, Expansion Joints can satisfactorily withstand the suction and discharge.

If you want to learn more, please visit our website Rubber Shock Absorber Damper.

Product Data Sheet

SPONGE RUBBER EXPANSION JOINT
Expansion/Contraction Control Joint

DESCRIPTION
SPONGE RUBBER EXPANSION JOINT is produced to a uniform thickness and density from gray-colored, top-quality, blown sponge rubber. It is easily compressed and has a recovery of 95% or more of the original thickness and a density of not less than 30 lb./ft.³ (480.56 kg/m3).

USES
SPONGE RUBBER EXPANSION JOINT is frequently used on bridge structures and sewage treatment plants that undergo rapid changes in temperature. Because of its excellent recovery capability during wide temperature variations, SPONGE RUBBER EXPANSION JOINT is used around supporting pillars, drains, hydrants, and lamp and sign posts, as well as in isolation applications or between materials having dissimilar coefficients of expansion.

FEATURES/BENEFITS

• High resiliency with excellent recovery after compression.
• Protects against water infiltration when properly sealed.
• Easy to handle and install.
• Offers isolation capabilities.

PACKAGING

Thickness Widths Slab Widths Standard Lengths ¼&#; (6.35 mm)
3/8&#; (9.53 mm)
½&#; (12.7 mm)
¾&#; (19.05 mm)
1&#; (25.4 mm) 36&#;
(914.4 mm) 10&#; (3.05 m)

SPECIFICATIONS/STANDARDS

• AASHTO M 153, Type 1
• ASTM D, Type 1
• Corps of Engineers CRD-C 509, Type I
• FAA Specification Item P-610-2.7
• Federal Specification HH-F-341 F, Type II, Class A
• New York State DOT

APPLICATION
The type of control joint and spacing used will vary with each project according to the type of structure, climatic conditions, and anticipated stresses in the concrete. Thinner joints of 1/4&#; (6.35 mm), 3/8&#; (9.53 mm), or 1/2&#; (12.7 mm), spaced at frequent intervals, offer greater control than thicker joints spaced at greater intervals. The basic objective is to provide ample room for the concrete to expand or contract without creating damaging stresses. Expansion joints should be positioned against forms at interrupting objects or columns and against abutting structures prior to the placement of the concrete. SPONGE RUBBER EXPANSION JOINT should be recessed 1/2&#; (12.7 mm) below the concrete surface to accept the joint sealant. To isolate filler from sealant, use SNAP-CAP® from W. R. MEADOWS.

DECK-O-SEAL®, POURTHANE&#; NS,  POURTHANE SL, and SOF-SEAL® are suitable sealants for horizontal applications of SPONGE RUBBER EXPANSION JOINT. The recommended sealants for vertical applications are DECK-O-SEAL GUN GRADE and POURTHANE NS.

-10

For more information, please visit Double Flanged Flexicon Rubber Expansion Joint.

Sustainability

Technical Literature

Specs & Details