®
Sikadur -Combiflex
®
High Performance Joint and Crack Sealing System Sika – Your Local Partner with a Global Presence Sika has more than 9’200 employees in these subsidiary companies’ facilities that are therefore ideally positioned to support the success of our partners – both our suppliers and our customers.
Construction
Sika is a multinational company in the speciality and construction chemicals business. It has subsidiary manufacturing, sales and technical support facilities in over 70 countries around the world. Sika is THE global market and technology leader in waterproofing, sealing, bonding, damping, strengthening and protection of buildings and civil engineering structures.
Also available from Sika
®
®
Sikadur -Combiflex High Performance Joint and Crack Sealing System
Sika Services AG Corporate Construction CH-8048 Zürich Switzerland Phone +41 44 436 40 40 Fax +41 44 436 46 86 www.sika.com Our most current General Sales Conditions shall apply. Please consult the Product Data Sheet prior to any use and processing.
Certif ie
nagemen Ma t
O
90
00
IS
1
Ce rti
d
stem Sy
em st
a d Qu lity Sy fie
9 01 / E N 2
since 1986
IS
O 14 0 0 1
since 1997
S&W 03.05 / 05SIC 21.2 / © Sika AG, Switzerland
Your local Sika Company
Watertight Concrete Construction Typical watertight Concrete Structure
Technology for watertight Joints The Selection Criteria Integral Cast in Place
-C
Internal Surface applied
-C
External Surface applied
R
R
R
R
R
R
R
R
R
S
S
R
R
R
R
R
R
R
S
S
S
R
R
D
D
S
S
S
S
S
S
R
R
Water a pressure < 10 m Grade 1
R
Water pressure > 10 m
R
R
additional details
Construction joint
R
R
Movement joint
R
R
additional details
Continuous secant pilling Connection to existing buildings (movement)
R
S
S
D additional details
R
Combination with other systems
<
Repair work
S
R each other
R very suitable
additional details
R very suitable
D
>
R
< each other >
D
S
D
S
S
Injection
Components of watertight Concrete Construction Concrete Technology
Technology for Joints
Penetrations
Concrete Protection
For watertight concrete with minimized permeability:
For watertight construction and expansion joints:
For watertight penetrations:
For chemical resistance, crackbridging etc.:
Cracks
S
R
D
S
S
R
S
Water inside
S
D
D
R
S
R
R
Abrasion/mechanical damage
D
D
D
R
R
R
R
Chemical attack (sulphate water)
R
R
D
D
R
S
S
Aesthetic aspects
S
S not suitable
external sulphate water
D
D
R Recommended
R
R
R
R
D fit for limited duties 1 low price
Relative price level for material and installation
Use Sika® ViscoCrete® Sikament® Plastiment® concrete admixtures
Use Sikadur®Combiflex®-System Sika® Injectoflex hoses SikaSwell® sealant and profiles Sika® Waterstop PVC waterbars
Use Sikadur®Combiflex®-System SikaSwell® S sealant SikaSwell® P profiles
Use Sikagard® protective coatings
2
2–3
2–3
2–3
2
1
1
2 medium price 3 high price
Key Advantages Sikadur®-Combiflex®-System Adaptable to the construction programme Easy to adjust to complicated construction details Simultaneous additional crack sealing possible Damage or leaks can be repaired externally or internally Easy to control the application because it is visible Easy to repair damage
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Sikadur -Combiflex -System Description of the System
Red middle strip from Sikadur®Combiflex®-Strip
High performance joint and crack sealing system consisting of Sikadur®-Combiflex® elastomeric sealing strip and Sikadur ® thixotropic epoxy adhesive.
Sikadur®-Combiflex®-Adhesive
The Sikadur®-Combiflex®System Solutions For Expansion Joints Temperature dilatation Construction settlement Material connections Building connections
Sikadur®-Combiflex®-Strip
Prepared concrete
Joint-filler (filler board)
For Construction Joints
The Function
The System Components
Expansion joints and construction joints are sealed by increasing the path of water penetration. The Sikadur ®-Combiflex®Adhesive is fully bonded to the substrate as well as to the Sikadur®-Combiflex®Strip.
Sikadur® Adhesives To achieve a watertight, durable connection between the Sikadur®-Combiflex®Strip and the substrate, the following 2-component, epoxy-based Sikadur® adhesives are used:
Connection between concreting steps Floor-to-wall connections Wall-to-wall etc. connections Inside or outside application Different material connections
Sikadur® Strips Weldable, no need for prefabricated sections Outstanding elasticity High durability and chemical resistance Root resistant
Sikadur®-Combiflex®-Adhesive Optimum workability and finish Provides smooth surface
e = water penetration (EN 206) s = increased length for water penetration
s>>e e
Sikadur®-31 When high layer thickness is required
For Crack Repair Sikadur®-33 Mechanical mixing and dosage with Sika CoMix®-101 Very suitable for high volumes Mechanical mixing and dosage with Sika CoMix®-101
Manual mixing with spindle and drilling machine
Construction settlement Shrinkage Thermal influences Statical overload
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Sikadur -Combiflex Application Fields
®
Drinking Water Tanks
Waterproof Basements
Approved for contact with drinking water Long-term water resistance High joint movement capacity
Durable Easy to control/repair Independent of concreting steps
Sikadur®-Combiflex® tested under water pressure (Swiss Federal Laboratories for Materials Testing and Research)
Waste Water Treatment Plants Tunnel Walls
Resistant in sewage water Long-term experience Good abrasion resistance
Resistant to aggressive de-icing salts and oils Helps to prevent premature corrosion of reinforcement Sikadur®-31 adhesive Sikadur®-Combiflex®-Strip
Sikadur®-Combiflex® after 12-month immersion in raw sewage and drinking water
Protection of the reinforcing steel from corrosion caused by de-icing salts and carbonization
Swimming Pools Tunnel Ventilation Ducts
Resistant against ozone, chlorine and UV Good cleanablility Non-abrasive (to skin)
Resistant to aggressive gases and exhaust fumes Airtight Flexibility to joint tolerances Conventional sealant after 3-month ozone exposure
Sikadur®-Combiflex®-System outgoing air
fresh air tunnel ceiling
traffic
Sikadur®-Combiflex® after 3-month ozone exposure
Sealing of ventilation ducts with Sikadur®-Combiflex®
Ground Water Protection Facade Joints
Approved for ground water protection High chemical resistance High safety of environment Impermeable
For high joint movement Overpaintable (adhesive) Outstanding weather resistance
Sikadur®-Combiflex®
Overstressed sealants are replaced with Sikadur®-Combiflex®
Industrial Floor Floor-to-wall joint connection Compatible with Sikafloor® Very hygienic Impermeable
And many other possible Applications … Sikafloor® broadcasted for optimal slip resistance
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Sikadur -Combiflex Application
Special Solutions
1
Against Water Pressure
2
Substrate preparation by means of sand blasting, grinding etc., followed by vacuuming
Activate the Sikadur®Combiflex®-Strip on the upper and lower side with a clean cloth and Colma®-Cleaner
6
Remove masking tapes
The Sikadur®-Combiflex®-Strip shows the so-called «plastic flow» under constant high water pressure. In order to overcome possible «bumps», the Sikadur®-Combiflex®-Strip is supported by mechanical means (see picture, negative water pressure) or by a sealant in the joint (positive pressure).
7
Place activated Sikadur®Combiflex®-Strip in position and roll Sikadur®Combiflex®-Strip to exclude air through the special perforations until adhesive comes through
Use masking tape to cover the joint
8
Apply Sikadur Combiflex®-Adhesive on the strip
(
thickness = 2 mm)
Backer rod
Filler board
Water pressure
Graph: Against negative water pressure/mechanical damage
®
3
Sikadur®-Combiflex®-System
Water pressure
Against mechanical Influences ®
Steel cover plate
Sikaflex® joint sealant
®
The Sikadur -Combiflex -System could be mechanically destroyed for instance from the dirt collector in waste water treatment plants. To protect it from this influence, the system may be applied in a recess.
Resin flooring, e.g. Sikafloor®-325 Sikadur®-31or Sikadur®-42 (depending on depth of recess)
Sikaflex® PRO-3WF Sikadur®-Combiflex®-System
PE separation foil Sika backer rod Joint filler Graph: Against mechanical damage
4
Mix Sikadur®-Combiflex®Adhesive components A and B for a minimum of 3 minutes until the mix is homogeneous
9
Remove masking tapes from the joint sides as well as the red middle strip from the Sikadur®-Combiflex®Strip
The Sikadur®-Combiflex®-System provides a hygienic connection between floor and wall in the food industry. To further protect it against the influences of traffic, it should be applied in combination with a guard rail.
Sikagard® coating
e.g. Sikaflex® PRO-3WF e.g. Sikadur®-31 Resin flooring modified, e.g. with glass fabric Resin flooring, e.g. Sikafloor®-261
5
Apply Sikadur®-Combiflex®10 Adhesive on the left-hand and the right-hand side of the joint
Overlap strip connections 3 cm in minimum, apply Colma®Cleaner or Hypalon-solvant, weld by means of hot air
Example: Floor-to-wall movement joints in industrial flooring
During the time of construction, the Sikadur®-Combiflex®System could be mechanically hurt from other workers. It is strongly recommended to protect especially the Sikadur®Combiflex®-Strip, for instance by means of strips made out of rubber mats.
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Sikadur -Combiflex Case Studies A
C
Project
Project
Dam for Hydroelectric Power Plant in the Swiss Alps (Grimsel), Joints at Air Side.
Investment Bank Foundation and Record Office below Ground Water Level.
Problem
Problem
Deteriorated polysulphide sealant Concrete damage due to leaking joints
Leaking joints due to installation errors of waterbars Humidity damage of papers in archive
Sika Solution
Sika Solution
Application of the Sikadur®-Combiflex®-System with the following advantages: Long-term resistance against UV, ice and snow etc. No need to remove old sealant Overbridging wide joints Easy mixing of Sikadur®-33 with Sika CoMix®-101
Application of the Sikadur®-Combiflex®-System with the following advantages: Application inside of the building Higher security and durability compared to injections Overbridging wide joints Easily adaptable in edges and corners
B
D
Project
Parking Garage underneath a Public Square with Fountain.
Project
Tunnel for Motorized Traffic with Joints in Ventilation Fuct. Problem
Problem
Huge joint tolerances Air pressure variations
Leaking joints and cracks Damage of parked cars due to lime spots
Sika Solution Sika Solution ®
®
Application of the Sikadur -Combiflex -System with the following advantages: Absolutely watertight Visual control of application quality Good access to surface preparation (unlike sealants!) Easy connection to waterproof membrane (for example Sikalastic®-801)
Application of the Sikadur®-Combiflex®-System with the following advantages: Possibility to cover joint tolerances Resistant and tight to air pressure Resistant against exhaust gases
®
Sikadur -Combiflex
®
High Performance Joint and Crack Sealing System Sika – Your Local Partner with a Global Presence Sika has more than 9’200 employees in these subsidiary companies’ facilities that are therefore ideally positioned to support the success of our partners – both our suppliers and our customers.
Construction
Sika is a multinational company in the speciality and construction chemicals business. It has subsidiary manufacturing, sales and technical support facilities in over 70 countries around the world. Sika is THE global market and technology leader in waterproofing, sealing, bonding, damping, strengthening and protection of buildings and civil engineering structures.
Also available from Sika
®
®
Sikadur -Combiflex High Performance Joint and Crack Sealing System
Sika Services AG Corporate Construction CH-8048 Zürich Switzerland Phone +41 44 436 40 40 Fax +41 44 436 46 86 www.sika.com Our most current General Sales Conditions shall apply. Please consult the Product Data Sheet prior to any use and processing.
Certif ie
nagemen Ma t
O
90
00
IS
1
Ce rti
d
stem Sy
em st
a d Qu lity Sy fie
9 01 / E N 2
since 1986
IS
O 14 0 0 1
since 1997
S&W 03.05 / 05SIC 21.2 / © Sika AG, Switzerland
Your local Sika Company