water proofing solutions for expansion and construction joints

1. EXPANSION JOINTS
• An Expansion joint is designed to safely absorb the heat-induced expansion and
contraction of various construction materials.
• They are commonly found between sections of slabs, bridges and other structures.
The traditional systems have given way to rubber based and thermoplastic tape
based systems, which are simply applied on joint with an adhesive. The systems
are UV resistant, highly elastic and can withstand extreme movements of the joint.

3. IN PRACTISE
• Movement joints must be waterproofed durably, elastically, form stable,
and UV resistant. A joint waterproofing must allow for movement in the
construction without causing damage to the construction itself.
Movement joints up to a width of 35 mm can be waterproofed with Joint
Sealant . For wider joints such as expansion and dilation joints Joint Tapes
are used.

5. APPLICATION
(FOAM ROD)

6. IN VERTICAL JOINTS
*These rods are available in sizes varying from 20mm to 60mm in dia in bhopal.

7. APPLICATION : (BY TAPE)

8. Substrate Preparation:
All substrates must be prepared before the application of a waterproofing. The
preparation of the substrate determines the quality of the system and should not
be undervalued. As a general rule the substrate must be cleaned or removed down
to a solid and stable base material, then leveled and primed. The substrate must be
clean, solid, and dry, and free from adhesion inhibiting materials such as waxes,
oils, and old coatings.

9. MARKET SURVEY
• Companies that provide water proofing materials in bhopal :
- PENETRON
-DR.FIXIT
-

10. STANDARDS
• IS CODE
*NOTE: These are outdated techniques and are not in use.