Joint sealants with new Technologies

What is SEALANT?
Functions
Applications
Types of Construction Sealants
Advantages
Common Problems OR Disadvantages

The Layman’s definition of ‘SEALANT’ is “any material placed in a joint opening generally for the purpose of weather proofing a building, so designed to prevent the passage of moisture, air, dust, and heat through all joints and seams in the structure.”

Horizontal and vertical metal-to-metal and masonry-to-masonry expansion
and control joints
Dissimilar material joints, such as metal-to-masonry or concrete-to-wood
Joints between precast concrete panels
Perimeter of doors and fixed window frames
Exposed exterior masonry control joints
Expansion or control joints in curtain wall
Joints in exterior walls
Concealed masonry-to-floor structure joints
Repair of larger cracks

1. JOINT
SEALANTS
Prepared By:
LOGESH S (19TPCV011)

2. CONTENTS
•What is SEALANT?
•Functions
•Applications
•Types of Construction Sealants
•Advantages
•Common Problems OR Disadvantages

3. What is SEALANT?
•The Layman’s definition of ‘SEALANT’ is “any material
placed in a joint opening generally for the purpose of
weather proofing a building, so designed to prevent the
passage of moisture, air, dust, and heat through all joints and
seams in the structure.”

4. Functions
•Sealants, despite not having great strength, convey a number of properties. They
are particularly effective in waterproofing processes by keeping moisture out
(or in) the components in which they are used.
•They may serve as fire barriers.
•Sealants can also be used for simple smoothing or filling.
•A corking sealant has three basic functions:
It fills a gap between two or more substrates;
it forms a barrier through the physical properties of the sealant itself and
by adhesion to the substrate
it maintains sealing properties for the expected lifetime, service
conditions, and environments.

6. Applications
•Horizontal and vertical metal-to-metal and masonry-to-masonry
expansion
and control joints
•Dissimilar material joints, such as metal-to-masonry or concrete-to-
wood
•Joints between precast concrete panels
•Perimeter of doors and fixed window frames
•Exposed exterior masonry control joints
•Expansion or control joints in curtain wall
•Joints in exterior walls
•Concealed masonry-to-floor structure joints
•Repair of larger cracks

7. SEALANTS

8. Types of Construction Sealants
•Silicone Sealants • Bituminous Sealants
•Epoxy • Synthetic Rubber Sealants
•Hybrid Polyurethanes Sealants • Thermoplastics Sealants
•Polyurethanes Sealants • Butyl Sealants
•Elastic Sealants • Hot Wax
•Varnish • Proof Sealants
•Acrylic Latex Sealants • Polysulfide Sealants

9. Silicon Sealants
Butyl Sealants
Epoxy
Sealants
Bituminous Sealants
Elastic Sealants

10. HILTI
RE 500(CONCRETE)
HY 170(BRICK)
LATICRETE

13. Advantages
•Improves Product Durability and Reliability.
•Increases Product Performance.
•Increases Design Flexibility.
•Increases Product Quality.
•Enhances Product Aesthetics.
•Improves Process Productivity and Reduced Manufacturing
Costs.
•Increases weathering characteristics.

14. Common Problems OR
Disadvantages
•Deterioration of sealants causes due to prolonged exposure to water,
ultraviolet light, and freeze-thaw cycles.
•Inappropriate Choice of Sealant and Improper Joint Design may fail
the joint and
losses the adhesion.
•Uncured Sealant that is uncured is often due to incomplete or improper
mixing of the sealant components.
•Bubbling and Blistering of the Surface losses the adhesion and fails the
joints.

15. https://www.youtube.com/watch?v=fk4Ck2ZZMO0
https://www.youtube.co
m/watch?v=fk4Ck2ZZ
MO0

16. THANK YOU…