Joints

Summary

Joints

In case of installing drain boards on soft ground, joint devices are used to link the drainage space of each drain board without disconnection, prevent the drain boards from being disconnected due to certain tension by using a stapler, reduce materials costs by cutting overall length losses, and prevent environmental damage.

Economics Comparison

[Test Office: Korea Apparel Testing and Research Institute and FITI Testing and Research Institute]

Economics Comparison
Division			Existing Stapler Connection	Joint Device Connection
Physical features	Shape
	Width		100 ± 5 mm	100 ± 5 mm
	Thickness		More than 5mm	More than 5mm
	Tensile Strength (kN/overall width)	KS K 10319	2.36	2.36
	Drainage Performance	Straight Line	31(500kPa, 1 week)	118(300kPa, 1 week)
	Drainage Performance	Curve	29(500kPa, 1 week)	-

Economics Comparison

Economics Comparison
Division	Existing Stapler Connection	Joint Device Connection
Remainder Waste	10m	None
Unit Price	300 WON/m	1,000 WON/EA
Costs	3,000 WON (10m x 300 WON)	1,000 WON
Costs Ratio	3.0times more	1.0times more
Feature	Extra costs for remainder Waste	Reduces materials costs, improves drainage performance, no waste

How to Use

a. Prepare joint device materials.
b. Insert lain board, starting with the protrusions of the joint device.
c. Fully insert drain board to stopper and fasten with nails.
d. Same with the other side – insert drain board in the protrusions first.
e. Fully insert drain board to stopper and fasten with nails.

Advantages

• Convenient to insert drain board because of insertion furrow
• Stopper inside the product center leads to balanced insertion.
• Prevents cuts to the joints caused by tension.
• Thin side is flexible during installation
• Convenient to connect and reduces materials costs as it produces no waste parts
• Great drainage performance thanks to the connection of the drain space of the drain board
• No environmental pollution