Waterstops for Waterproofing of Construction Joints

Waterstops or waterbars are premanufactured joint filler used to prevent the transmission of water through the construction joint. Waterstops are mainly used for the waterproofing of below-grade concrete structures like tunnels, water treatment facilities, parking structures, water reservoirs, sewage treatment facilities, and marine structures. The basic features and types of waterstops used ...

Waterstops for All Types of Concrete Joints

All Types of Waterstops to Prevent Liquid Leaking. Waterstop plays an important role in waterproofing a concrete structure, especially joints, the weakest part which is liable to leakage of water or chemical liquids. So waterstops are designed as a fluid-tight diaphragm embedded in or running along the joints to solve these problems.

Waterstop Systems - Sika USA

Concrete structures are only as watertight as the waterstops that join them. Structures such as water treatment plants, reservoirs, locks, dams, and below grade facilities, most likely have a waterstop system in place. Several factors must be considered when selecting a waterstop.

Waterstop for Concrete Joints - Earth Shield®

NSF 61 and CRD C-572 certified waterstops for new construction and retrofit. Earth Shield® PVC Waterstop is the perfect solution for most water and wastewater applications. Manufactured from prime virgin resin and is the trusted choice for concrete joints.

Understanding waterstops: To ensure success, one must ...

What is A waterstop concrete joint?

Understanding waterstops: To ensure success, one must specify ...

Jun 30, 2015 · A waterstop installed in concrete joints is an important component of an overall waterproofing design to protect below-grade portions of a concrete structure. These products’ use in construction joints ( i.e. ‘cold joints’) is a good design practice for building foundations, with or without a positive-side waterproofing membrane.

CS&E — Contractors Supply & Equipment — Waterstop

This swelling ability prevents the passage of water through concrete construction joints. Type 20 & 23 waterstops are fast, easy, and economical to install. Simply apply Earth Shield® Primer to the existing concrete, firmly press the waterstop to the primed surface, and place your second pour of concrete.


Install WATERSTOP-RX in all applicable concrete construction joints for metal sheet piling or concrete cassion construction. Install WATER-STOP-RX around all soldier pile tie-back boxes through wall construc-tion joints (see Figure 6.3). Use WATERSTOP-RX 101T (trapezoidal) for shotcrete or gunite concrete construction.

Waterstop CAD Details - Waterstop for Concrete Joints

PVC336L — Small L-shaped retrofit waterstop for non-moving construction joints. Often, the preferred choice for containment curbs on slabs. Often, the preferred choice for containment curbs on slabs.

Greenstreak® PVC Waterstop - Sika

Embedded in concrete, across and/or along the joint, waterstops form a watertight diaphragm that prevents the passage of liquid through the joint. Suitable for potable water contact, meets NSF/ANSI Standard 61. Meets the physical property requirements of Army Corp. of Engineers PVC Waterstop Specification CRD-C 572-74

PVC Waterstop Design Guide - Sika

1. Type of concrete joint 2. Direction and magnitude of movement 3. Waterstop location in the joint 4. Waterstop design and size B. Sika St. Louis offers the world’s largest selection of waterstops. Sizes range from 4 to 12 inches in width and from 1/8 to 1/2 inch in thickness. Contact Sika St. Louis for assistance in selecting the appropriate

Waterstops: A Plethora of Solutions - A Construction Products ...

Waterstops represent a critical component of any waterproofing system. Due to shrinkage and settling, the surfaces of a concrete cold joint will never perfectly conform to one another. Without a flexible barrier that can accommodate the imperfections of concrete surfaces, water will have the opportunity to creep in through the seam.

Waterstops| Concrete Construction Magazine

Waterstops are designed to provide an effective waterproof barrier across construction, contraction, and expansion joints. They are not intended as a remedy for porous concrete. Finally, (4) all joints must be sealed properly. Although a waterstop is a complete seal in itself, it is also advisable to seal all joints with an appropriate filler.

Kryton Swelling Waterstop | Waterproofing Concrete Joints

Krytonite Swelling Waterstop is adhered using Krytonite Adhesive at or near the center of the construction joint to the clean, dry, concrete surface. For added long-term protection of the outboard reinforcing steel, apply Krystol Waterstop Treatment to the concrete surface first and then adhere Krytonite to the treatment.

Sealing Cold Joints with Waterstops | WATERPROOF! Magazine

Most types are manufactured exclusively for use in cast-in-place concrete construction joints (i.e. cold joints), while some can also be used with expansion joints (See story on p. 19). Selected waterstops must accommodate the expected lateral, transverse, and shear joint movements, as well as, the expected hydrostatic pressure.

Rubber & PVC Waterstop Installation Method

Pour the concrete and vibrate concrete nearby the joints (especially those under the waterstop) to enhance the contact with waterstops. Clean debris and dirt of concrete surface after first pour. Repeat the above methods for a second pour.

Sika® Greenstreak® PVC Waterstops

PVC waterstops are installed prior to placing concrete to ensure proper positioning and concrete consolidation around the waterstop. The center-line of the waterstop should be aligned with the center of the joint. Size and style of the waterstop determine permissible variation from the center-line. New Concrete Existing Concrete 3-120

Sika Greenstreak Waterstops

Sika® Greenstreak WATERSTOPS Concrete Accessories NONMOVING JOINTS typically have 100% of the bonded steel reinforcement continuous through the joint, and expose the waterstop to negligible or no movement. Flat waterstop profiles without a centerbulb or tear web are suitable for nonmoving joints.

Parchem | Our Range of Industrial Construction Products

Premium grade, water swellable, waterstop range for use in cast in-situ concrete. Leakmaster Gun applied, water-swellable, waterstop paste. Supercast PVC Waterstops Centrally and externally placed, PVC waterstop profiles for use in cast in-situ concrete. Superswell 47B High expansion butyl bentonite based hydrophilic waterstop.

Concrete Waterstops - Concrete Construction Products Manufacturer

These bentonite-based waterstops are designed for construction joints in concrete footings, walls, floors, tunnels, parking lots, plaza decks, and more. Their advanced technology improves prevention of water penetration and are specifically needed where areas of constant water immersion is expected.

Joint Waterproofing - Sika

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.


WATERSTOP-RX® WATERSTOP-RX® is an expanding strip waterstop designed to stop water ingress through cast-in-place concrete construction joints. Upon contact with water, it expands to form a positive seal against the concrete. WATERSTOP-RX® is designed to replace passive PVC/ rubber dumbbell waterstops, thereby eliminating the requirement of

Waterstop Installation Presentation

Construction Ribbed Centerbulb Profile Ribs give good interlock and difficult fluid path Centerbulb allows for typical joint movement “The ribbed centerbulb is generally regarded as a universal type waterstop for application to both expansion and contraction joints. It’s ability to accommodate both transverse and

Fosroc Solutions for Waterstops

construction whether wanted or not, so construction joints have to be designed with cracking in mind; for example a PVC waterstop placed over the blinding and cast into a basement floor. CONSTRUCTION JOINTS These create a gap in the structure to allow for both expansion and contraction caused by thermal and moisture movements.

Using Waterstops| Concrete Construction Magazine

Aug 01, 1986 · Both types are discussed in "Waterstops: Choose Them Wisely and Install Them With Care," published in our June 1984 issue, page 569. Based on that article a metal waterstop could presumably be used in the construction joints that you discuss.The configuration of the joint may help explain why you are having difficulty in building it.

Waterstop King: Join New Concrete to Existing Concrete With ...

Apr 20, 2017 · Join New Concrete to Existing Concrete With Earth Shield Retrofit Waterstop Earth Shield Part No. JP325T installed in an expansion joint. Retrofit waterstop is designed to provide a fluid-tight seal between existing and new concrete construction, without resorting to the labor-intensive and structurally destructive saw-cut-and-grout method.


structure and new construction. These systems can be used as an alternative to saw cutting and epoxy grouting in a conventional waterstop or the use of mastic type waterstops. The centerbulb design of the waterstop in conjunction with the elasticity of the PVC material allows for movement in the newly created joint.


FOR CONCRETE CONSTRUCTION JOINTS WATERSTOP® XP is the next generation of waterstop that expands upon contact with water to form a positive seal to stop water in-gress through cast-in-place concrete construction joints and around pipe penetrations. Through the use of the patented XP technology, WATERSTOP® XP is proven effective in a wide range ...

Construction Joint Formwork With Indentation And Metal ...

Construction Joint Formwork With Indentation And Metal Waterstop - Slab Share contents The secondary reinforced construction joint formwork element for floor/ceiling slabs creates a rough surface and ensures a forced-locked connection between the first and the second concreting section.

dura.®joint PVC waterstops | a.b.e.® Construction Chemicals

Sep 24, 2015 · The waterstop will be dura. ® joint external C, an externally placed extruded plasticized PVC compound applied in accordance with the recommendations of a.b.e. ® Construction Chemicals. The waterstop will comply with the requirements of CKS 389:1973 and have an elongation at break of 300%. Waterstop dura. ® joint dumbell.

Joints and Waterstops | WATERPROOF! Magazine

In new construction, one side of the stop is embedded in the concrete during the first pour. The other half of the waterstop is encased in concrete when the other side of the joint is poured. Obviously, keeping the waterstop in place, with no folding or movement, requires considerable attention to detail.

Waterstops - BoMetals

Construction Joint A joint placed in concrete where construction operations are concluded for the day. —Reprinted with permission, American Concrete Institution, CCS-1, Slabs on Grade, Mary K. Hurd, Editor. WATERSTOPS FOR MOVING JOINTS Ribbed Center Bulb Used in expansion joints where normal movement between members is anticipated. Also

PVC Backstop Concrete Waterstops | Form Direct

PVC Backstop Concrete Waterstops available in a range of sizes. Order your desired quantity online now & ship direct to you. Contact our team for enquiries.

Expansion and construction joints (Swellbar & PVC waterstop)

Expansion joints and construction joints PVC weberdry waterstops are recommended to stop leakage positively through construction and expansion joints in concrete structures. They are required whenever concreting is to be made in 2 phases (between slab and slab or slab and wall or wall and wall).

Waterstop Solutions | Joint Sealing

Waterstop Solutions offers joint sealing and joint repair solutions that are specifically designed to withstand crack and joint movement due to expansion or contraction. Our services are currently offered on the East Coast of Australia in Queensland and New South Wales, with offices located in Brisbane and Sydney.