Expansion Joint-Small Movement

Specifications

1.Certificate:ISO9001:2000
2.Sizes:up to the customers
3.Delivery Term:20 days
4.Competitive price.

Sales Manager: Danny

Mobile Phone: 0086 15075828982

Tel: +86 3187091666

Fax: +86 3187952199

Website: /

Companies: CHINA BAOLI GROUP  
Address: No.1888 Heping West Road, Hengshui City, Hebei Province, China.

Description of  Expansion Joint-Small Movement:    
         Expansion Joint-Small Movement system comprises of 8 NO. Standard models designed to accommodate
movement up to 330mm by shear deformation of the elastomer between the steel components. Each model of our 
Expansion Joint  incorporates steel angles designed to be bolted to the structural deck and a steel bridging plate
system which spans the open joint gap. The elastomer case is highly resistant to oils, solvent spillage and the trafficked surface includes an anti-skid pattern for safety having a rubber to rubber coefficient of static friction of 0.69. Each model
of our Expansion Joint  is specifically designed to accommodate horizontal and skew movement and will also
accommodate vertical movement due to rotation of up to 6mm.

Features of Expansion Joint-Small Movement :
       As one of the company’s main series of products, our expansion joint stands most competitive position
in the domestic & abroad markets of same industry by its convenient installation, stable running, waterproof,
dustproof, little noise, light weight, and low cost and other features.

       Expansion Joint is the flexible transformation when using high elasticity to adapt the change of temperature.
And our  Expansion Joint got good reputation of bridge engineering by its convenient installation, stable running,
waterproof, dustproof, little noise, light weight, and low cost and other features. 

Application of Expansion Joint-Small Movement :
         Expansion Joint-Small Movement is used in Highway bridge decks, Service ramps, Multi- storey car parks and so on.  
Road  Expansion Joint is used to prevent buildings or bridges appear some cracks because of  climate change.

Construction programs of Expansion Joint-small movement:
(1) Set out and cut  Expansion Joint- small movement.
(2) Excavate and clean the  Expansion Joint-small movement area.
(3) Drill holes to locate the anchor bolts.
(4) Place the rebar mat and mold.
(5) Pour bottom concrete layer.
(6) Install comb-shaped steel plate.
(7) Pour side concrete.
(8) Maintenance the Expansion Joint- small movement.

Elements of road expansion joint.

Items	Rubber
	Plate-type	Combined type
1. Max horizontal frictional resistance of expansion and compression (KN/m)	<18	≤8
2. Max vertical deviation or deformation of expansion and compression	-3-3	-2-2

The dimensional deviation of road expansion joints.

Length Range	Deviation	Width Range	Deviation	Thickness Range	Deviation	The hole distance of the screw L1deviation
L=1000	-1,+2	α≤80	-2.0,+1.0	t≤80	-1.0,+1.8	<1.5
		80<α≤240	-1.5,+2.0	t>80	-1.5,+2.3
		α>240	-2.0,+2.0	-	-
Note: (Width Range) Positive deviation is used in the top of the expansion and contraction body, negative deviation is used in the bottom of the expansion and contraction body.

The appearance quality of road expansion joints and sealed belts.

Name of defects	Quality standard
Skeleton steel exposed	Not allowed
Steel plate with crack or peel	Not allowed
Spray frost, brittle and crack	Not allowed
Obvious cracking without glue	Area is not more than 30 mm * 5 mm, depth is less than 2mm defect. Per linear meter cannot   appear 4 defects.
Bubbles, impurities	Not more than 0.5% of the products’ surface area. Per place is not more than 25mm and the depth is not more than 2mm
Bolt positioning hole deflection and cracking	Not allowed
Connecting channel craze and cannot close strictly.	Not allowed

The inner quality of road expansion joints.

Names	Quality requirements
The position of steel plate and angle steel after sawing	The position of steel plate and angle steel must be accurate. Plane position deviation is ±3 mm, height position deviation is between -1mm and 2mm.
The bond of steel plate and rubber	Steel plate and rubber binder should be solid and without delamination phenomenon