• 02165741139
  • Tehran - Shahriar
  • Saturday to Thursday: 9 am - 5 pm

Waterproof design: Waterstop

Waterproof design: Waterstop

In this article, we discuss the topic of waterproof design: Waterstop. To buy and know the price of super lubricant, tile adhesive, anti-acid mortar, rebar planting adhesive, concrete restorer, epoxy and antifreeze grout, etc., you can contact Shimi Abadgaran company.

What is Waterstop?

Waterstops are usually applied in below-grade construction joints (horizontal or vertical) that are under hydrostatic pressure. They are embedded in concrete and span the length of the joint.

Waterstops are usually applied to below-grade (horizontal or vertical) construction joints that are under hydrostatic pressure. They are embedded in concrete and span the length of the joint. Waterstops should always be applied in negative side waterproofing applications and act as a secondary barrier to prevent liquid water from passing into the substrate in positive side applications.

Construction joints – or cold joints, as they are commonly called – occur when a section of concrete is placed and allowed to dry before the adjacent concrete is placed.

This often occurs in concrete structures in the following locations:

  • Transition between horizontal and vertical components
  • When concreting is stopped for scheduled reasons or at the end of a working day.
  • When the design elements need to be changed in the design of the form.
  • When the formwork is not enough to complete the structure in one place, as in the case of a high wall.

In addition to these requirements, construction fasteners are recommended for installation in concrete every 30 feet.

Waterproof material

Before designing, it is important to choose the right material and type of waterproofing. This requires research for the designer as there are many different materials and types. The right choice contributes to the success of the project. The wrong choice may contribute to premature failure. The materials used to make waterstops have evolved over the years from simple metal rods covering the joint to rubber dumbbells. Currently, waterstops are prefabricated joint fillers that come in many types, sizes, and shapes.

The most commonly used materials are:

  • Polyvinyl chloride (PVC).
  • Neoprene rubber.
  • Thermoplastic rubber.
  • Modified chlorophene
  • Bentonite clay.
  • Asphalt plastic.
  • Butyl and bentonite/butyl rods.

PVC and two types of rubber are used exclusively with cast-in-place concrete. Modified chlorophene, bentonite clay and asphalt plastic are mainly used for concrete. However, they are suitable for other building materials such as concrete block and metals. Waterstop materials must have the same properties as waterproof membranes, as they must be resistant to water, chemicals, and adverse groundwater conditions. They should also have a low water absorption rate.

PVC and neoprene rubber materials are very rugged and durable. The downside of these materials is that they can be difficult to install, making them prone to improper installation or damage during construction. Thermoplastic rubber is available in many forms, but this material tends to fold during concreting. There are eight types of waterstop bases that are made from PVC or rubber derivatives.

They are as follows:

1. Ribbed flat.
2. Dumbbell.
3. Base seal.
4. Labyrinth.
5. Split water stop.
6. Ribbed with central lamp.
7. Dumbbells with a bulb in the middle.
8. Tear the string.

Ribbed and Dumbbell Flat Waterstops are used for building joints where little or no movement is expected. The ribbed flat type generally has a better seal than the dumbbell shape.
Waterproof Base Seal is ideal for joints or walls that are to be filled. These forms are easily formed.

The labyrinth waterstop is mainly used in vertical joints where little or no movement is expected. The advantage of this shape is that it does not require slotting and adds a key to the joint. The advantage of this shape is that it does not require slotting and adds a key to the joint.

Waterstop Split is available in rib with center bulb and dumbbell shape. They eliminate the need for a gap wall.

Ribbed waterstops with central lamp

Ribbed waterstops with a central bulb are the most versatile type available. The central lamp accommodates lateral, transverse and shear movement. Larger central lamps accommodate larger movements.
A dumbbell with a central bulb accommodates lateral, transverse and shear movements. Ribbed shapes provide better sealing properties.

Tear lamps

Tear lamps accommodate large movements. When joint movement occurs, the tear web is torn, allowing the U bulb to deform without subjecting the material to tension.

Installation of hydrophilic materials

Hydrophilic materials are easy to install, but are subject to water damage (rain or other wetting) during construction. Bentonite and asphaltic plastic waterstops are also easy to install, but they are not used on expansion joints and proper substrate preparation is required. In each case, these materials adhere directly to the edge of the first concrete and do not need to be applied in the second pour. The material expands when water is placed, allowing all voids at the joint to be filled for watertight conditions.

Waterstop application

Waterstops come in a variety of sizes, and successful applications require installing the right size material. The size of the waterstop is determined by the expected water head pressure. The water head also determines the minimum embedment of the waterstop flange in the concrete. It is best to provide the waterstop manufacturer with the actual joint project design and water head conditions as all site conditions are different and they are best able to determine the proper sizing for their products.

Read more: Epoxy rebar planting glue

Purchase and price of super lubricant, tile adhesive, anti-acid mortar, rebar planting adhesive, concrete restorer, epoxy grout and antifreeze company Shimi Abadgaran

With more than two decades in the field of production of chemical products for the construction industry, Abadgaran Chemical Company, in addition to producing more than a hundred types of construction chemical products, has a history of cooperation in implementation and consulting in large national, personal and corporate projects. Shimi Abadgaran Company has a large share in construction chemical products and has more than fifty production forces and laboratories. These are only a part of the extensive cooperation of chemical growers during these years. To buy and know the price of super lubricant, tile adhesive, rebar planting adhesive, anti-acid mortar, rebar planting adhesive, concrete repairer, epoxy and antifreeze grout and polymer mortars, anti-acid mortar, super lubricant and concrete repairer. , epoxy grout, anti-acid mortar, etc. You can contact Shimi Abadgaran company.

the address of Central office

Leave A Comment

Your email address will not be published. Required fields are marked *

فیلدهای نمایش داده شده را انتخاب کنید. دیگران پنهان خواهند شد برای تنظیم مجدد ترتیب، بکشید و رها کنید.
  • Image
  • SKU
  • Rating
  • Price
  • Stock
  • Availability
  • Add to cart
  • Description
  • Content
  • Weight
  • Dimensions
  • Additional information
برای پنهان کردن نوار مقایسه، بیرون را کلیک کنید
مقایسه