Due to the nature of concrete and reinforced concrete, structures are built divided into sections by forming joints, namely three types – construction joints, movement joints and connection joints. The key function of joint sealing is to minimize water ingress and create a secure waterproofing barrier. The seal must be capable of accommodating the anticipated joint opening and closing due to static reasons or temperature changes. Joint sealing solutions are recommended for use in all kinds of construction and joints for waterproofing.
Construction joints are designed to split areas of the structure into separate concrete sections for work scheduling reasons, or as a structural measure to transfer load, for example. The reinforcement in construction joints is therefore continuous through the joint.
Thermoplastic Waterbars
Waterbars are the most common waterproof joint sealing solution for construction joints and are mandatory for expansion joints. The appropriate profile can be chosen from the wide range of Sika Waterbar® based on various materials, depending on project requirements.
Advantages:
• Easy design of closed systems for construction and expansion joints
• Easy connections by welding
• Different products, shapes and sizes for diverse requirements (load and exposure)
• Pre-fabricated waterstop systems possible
• Internal and external waterstops available
Hydrophilic Gaskets
The full range of hydrophilic (swellable) Anusaya Water Proofing profiles, rings, and gun-applied sealants are an efficient solution for construction joints and complementary sealing of penetrations to provide an additional line of protection against water ingress.
Advantages:
• Highly economical
• No influence on formwork or reinforcement
• Can be used as a back-up system
• Tested and approved system
• Alternative profiles available for different requirements
Injection Hose Systems
Advantages:
• Suitable for highly stringent requirements
• No influence on formwork or reinforcement
• Stand alone or backup systems
• A good injection fills the complete joint and prevents any entry of water
• Re-injectable systems
Adhesive Tapes
• Approved for use in areas in contact with drinking water
• Easily adaptable to the construction method
• Excellent adhesion to different substrates
• Highly flexible
• Easily maintained
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