Transcript
VANDEX CLADDING OF STONE/ BITUMINIOUS FELT.
� Easy& Fast application (even when wet)application (even when wet)
No Protection needed (Cost saving).
� Long Life
� Forms part of Structural
� concrete.
� Crack Bridge by crystallization upto 0.3 mm .
� Sealmess and no fear of joint failures due to age. Vandex Super is part and parcel of the structural concrete incase of structural alterations there are no cold joints formed due to age of applications.
� Can be applied with ease from negative side of basement structure and can be applied post construction also.
� Very Slow application and time consuming.
� Protection needed (Extra cost)
� Extra cost of protection
� Does not form part of structure.
� Has very Limited crack bridging capacity.
� Fear of Joint failure ever present due to water pressure or age or poor workmanship
� Does not form part of structural failure the system is not repairable from negetive side.
� Can not be applied or used from negetive side or post construction.
BASEMENT TREATMENT
By: External Application Method
� Typical Raft &Wall Joint Detail
Typical Detail Raft &Wall joint Typical Detail Raft &Wall joint
Method of Application:
SPRINKLING OF VANDEX SUPER JUST BEFORE CASTING OF RAFT
Doseage 1.0-1.2 Kg per Sq.mt
Quality.Control-Use of 1.0 Sq.mt Ring.
NEXT SEQUENCE
Correct Application ofCorrect Application of
Vandex ProductsVandex Products
Vandex International Ltd
Three elements of a
successful
Vandex application
1. Surface preparation
How it shouldn’t be !!
• The laitance is still existing
Surface preparation
All concrete to be treated must be
clean and have an ”open” capillary
system.
Remove laitance, dirt, grease, etc. by
suitable means.
Concrete without any surface
preparation
Concrete which received a
surface preparation by high
pressure water jetting
• Aggregates are visible
Concrete which received a
surface preparation by water-
sandblasting
Water-sandblasting
• 180 bar water
• plus sand
Routing out visible cracks not subject to movements that exceed 0.3 mm
Crack repair
Repair of Retaining Wall
Cement based Injection Grouting
Three elements of a
successful
Vandex application
1. Surface preparation
2. Product application
Application of Vandex products
Prewatering
Surfaces must be carefully prewatered
prior to the Vandex application.
The concrete surface must be damp
but not wet.
Simple test by hand
� Do not apply the products at temperatures below the values indicated on the product data sheet or on frozen substrates
� Do not apply the products at temperatures below the values indicated on the product data sheet or on frozen substrates
� Control of material consumption in relation to the surface => correct layer thickness
� Do not apply the products at temperatures below the values indicated on the product data sheet or on frozen substrates
� Control of material consumption in relation to the surface => correct layer thickness
� When problems arise, stop the application and investigate => damage limitation
� Do not apply the products at temperatures below the values indicated on the product data sheet or on frozen substrates
� Control of material consumption in relation to the surface => correct layer thickness
� When problems arise, stop the application and investigate => damage limitation
� Record batch number of applied material
Mixing
Place in a clean container and stir for at least 3 minutes with a mechanical mixer.
Mixing
Place in a clean container and stir for at least 3 minutes with a mechanical mixer.
The mixing times have to be respected precisely !
Mixing
Place in a clean container and stir for at least 3 minutes with a mechanical mixer.
The mixing times have to be respected precisely !
The amount of water may – depending on environmental conditions and batch variations –differ slightly from the specified quantity.
Mixing
Place in a clean container and stir for at least 3 minutes with a mechanical mixer.
The mixing times have to be respected precisely !
The amount of water may – depending on environmental conditions and batch variations –differ slightly from the specified quantity.
If the mix stiffens, re-mix, do NOT add more water!
Mixing by
mechanical
mixer
Application by brush
• VANDEX SUPER
Curing
After application, Vandex treatments must be kept damp for 5 days.
Curing
After application, Vandex treatments must be kept damp for 5 days.
Protection against:
• Sun
• Wind
• Rain
Covering with plastic
Many thanks for your attention !!
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