What is a water bar in construction?
HYDROBAR is a range of high-performance PVC extruded waterstops designed to prevent the passage of water through construction and expansion joints in watertight structures.
What are concrete water bars?
Waterstops or waterbars are flexible tape like elements of a concrete structure that prevent the passage of water through concrete joints. They are hydrophilic or impervious strips cast into the concrete at the joints to prevent the passage of water .
How does a water stop work?
Hydrophilic or ” water -loving” waterstops are strips of rubber, modified with a hydrophilic agent (such as bentonite) so they swell in the presence of moisture to effectively seal concrete construction joints. Initial leaking is possible until the waterstop expands to seal the joint.
How do you waterproof cold concrete joints?
at each segment end, with an injection port on one end exiting the concrete . After the structure is built, polyurethane resin is injected into the hose to seal the joint and fill any cracks or voids intersecting the joint . They can also be used to seal construction joints between new and existing structures.
What is a construction joint in concrete?
Construction joints – are surfaces where two successive placements of concrete meet. They are typically placed at the end of a day’s work but may be required when concrete placement is stopped for longer than the initial setting time of concrete . In slabs they may be designed to permit movement and/or to transfer load.
What is PVC water stopper?
Pvc water stopper are flexible Plastic strips which provide a physical barrier to Water at concrete joints, mostly in basements, Water retaining structures like Water tanks, Swimming pools, structural foundations & other below ground level constructions.
How does PVC waterstop work?
PVC waterstops are for use in concrete joints subjected to hydrostatic pressure. Embedded in concrete, PVC waterstops span the joint to form a continuous, watertight diaphragm that prevents the passage of liquid through the joint.
How do you use a PVC water stopper?
Methods for Jointing PVC Waterstops with Heater Blade: Place the waterstops on both sides of heater blade & press it until it melts but without burning. Remove the heater blade upward. Joint the molten end quickly & hold them together firmly for approximately 20-30 seconds.
How does quikrete water stop concrete?
Blend 4 – 4 1/2 parts Water – Stop Cement to 1 part water , by weight. Ingredients should be mixed to form a heavy putty consistency. Do not mix more material than can be used in 2 – 3 minutes. In most cases, limit batch size to 4 – 6 oz (113 – 170 g) of powder.
How do you install a water stop?
Installation : Place waterstops at appropriate position. Make sure that about a half width of it is embedded in the concrete. Contain about 1.5 times of clear coverage between the waterstop and surround reinforcing steel without any rock pockets and air voids.
What is concrete keyway?
Definition. Keyway . A slot formed and poured on a footer or in a foundation wall when another wall will be installed at the slot location. This gives additional strength to the joint/meeting point.
How do you treat cold joints in concrete?
High pressure flexible polyurethane injection. The high-pressure injection procedure allows the insertion of a liquid into a very narrow crack. The technician will drill holes along the cold concrete joint and ensure that the holes and joint on the concrete surface are properly cleaned.
Does sealing concrete prevent cracks?
Protecting Concrete A concrete sealer can reduce freeze-thaw damage by reducing the water absorbed by the concrete . One effective product that protects concrete from cracks is Sikagard 701W.
How do you waterproof concrete cracks?
Fix Concrete Cracks in 8 Steps Step 1: Repair a Foundation Crack With an Epoxy Sealer. Step 2: Block Out the Injection Ports. Step 3: Mix the Epoxy Sealer. Step 4: Attach the Injection Port. Step 5: Spread Sealer Along the Crack . Step 6: Inject the Epoxy into the Crack . Step 7: Seal Up the Injection Ports.