Table of Contents
How do you waterproof construction joints?
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.
What is a water sealed joint?
Waterstop is a material that is embedded in the concrete, across the concrete joint, to obstruct the passage of water through the joint. A waterstop installed in concrete joints is an important component of the overall waterproofing design.
Does expansion joints need to be sealed?
Expansion joints need to be sealed periodically to protect against water, dirt, and debris. These elements can hurt the structural integrity of concrete over time. Water can also lead to mold and interior leaks that are costly to repair.
What is used to seal joints?
The polymers used include latex, butyls and acrylic, polysulfide, hybrid polyurethanes, silicones, urethane and advanced sealants (factory preformed). Some of the properties required to increase the performance of the joint sealant include: UV-resistant.
Can you waterproof an expansion joint?
The key function of waterproofing an expansion joint is to minimize water ingress into a structure by creating a secure waterproofing barrier. Penetrating water may cause damage and may reduce the usage and lifecycle of the building.
Should you seal mortar joints?
The most common repairs to brick and block walls, chimneys and brick veneer are cracks caused by wall movement or foundation settling and the deterioration of the mortar joint from exposure to the element over time. Once a crack develops it is important to seal the crack from water to prevent further deterioration.
Is there a waterproof mortar?
Waterproofing Mortar is a high-performance, polymer modified, cement coating for interior and exterior use. Use to waterproof basements, foundations, retaining walls, tilt-up concrete, cast-in-place concrete, and precast concrete.
What is joint sealant in construction?
Joint sealants are used to seal joints and openings (gaps) between two or more substrates, and are a critical component for building design and construction.
Should concrete joints be sealed?
Sealing joints in your concrete structures is key to prolonging the life of a concrete structures. Joints in slabs are critical for relieving stress to prevent cracking but they are also the weak point when it comes to traffic. Joints in containment structures are the main route liquids take to get to the ground.
Should you caulk concrete expansion joints?
Caulking Concrete Cracks and Expansion Joints Caulking the joints and cracks is the best way to stop this from happening. Even expansion joints in your concrete driveway should be caulked. They can be the biggest culprit of water under your slabs.
Can you waterproof mortar?
With the addition of various chemicals and additives, mortar can be made waterproof and/or watertight. Plus, even regular mortar can be sealed so that it is watertight and doesn’t allow water to permeate.
What is seam sealing and how does it work?
Seam sealing is a process used in garment construction where thin strips of adhesive tape are applied along the length of a seam to prevent water from seeping through.
What are the best precast construction joints for waterproofing?
The hydrophilic profiles below are perfect for waterproofing precast construction joints. Bentobar+ is our standard bentonite waterstop, which we produce for over 25 years now. BeSealed® also developed its own waterswellable rubber compound with an expansion volume that was never seen before.
What is joint sealing in concrete?
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.
What are the characteristics of a good joint SEAL?
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.