Waterproofing system

The following is a sampling of alternative waterproofing systems that are readily available to builders. 

Coal tar-modified polyurethane is a cold-applied liquid waterproofing system. The system by Sonneborn is an example of this approach to waterproofing. It is applied as a liquid at the rate of 10-15 mils/coat. The coating dries hard, but has some elasticity. This material may be attacked by acids in groundwater but can be defended by a protection board. The performance of any liquid-applied waterproofing systems is limited by the capabilities of the applicator (it is difficult to achieve even coats on vertical surfaces). 

Polymer-modified asphalt is a cold-applied liquid waterproofing system. As with the Sonneborn system mentioned above, the quality of the installation depends on the applicator (it is difficult to achieve an even coating on a vertical surface). High-grade polymer-modified asphalt is superior to coal tar-modified polyurethane in elasticity, crack-spanning ability, and resealability, but inferior in its resistance to chemicals. 

Construction sealants Protective coatings Industrial flooring Adhesives for bonding wood Waterproofing systems... 

Waterproofing systems, for a wide range of waterproofing applications fast curing thermal stability seamless... 

Liquid polyurethane waterproofing systems are coal-tar modified products. Two-component materials are catalysed curing systems, and one-component materials are cured by exposure to moisture. Both the materials exhibit comparable properties on complete curing. Two-component materials require on-site mixing of the components. One-component materials can be applied directly, but the problem with this type is polymerisation of the product inside the container if it is improperly sealed. Such products are purged with an inert gas when the pack is sealed. 

Diagram 1. Principle of protected multi-layer waterproofing system... 

The features of waterproofing layers and their protective mats are presented in table 1. Test specimens were taken from these protected multi-layer waterproofing systems. Diagram 1 depicts the principle of protected multi-layer waterproofing system. 

Table 1. Features of the protected multi-layer waterproofing systems...

Samples to be tested were kept more than 61 hours in the temperature condition of 23°C and relative humidity of 50% this corresponded to the requirements of SN-ISO 291. Sample stripes were taken from the system composed of protective mat, waterproofing membrane, and the underlying polymeric geotextile polymer bedding the length of the strips amounted to 250 mm. The strips were bonded at discrete end points according to the actual conditions of waterproofing systems. 

Bedding Waterproofing system Thickness [mm] Fall height [mm]... 

Our product lines feature high-quality concrete admixtures, specialty mortars, sealants and adhesives, silicones, damping and reinforcing materials, structural strengthening systems, industrial flooring, roofing and waterproofing systems. 

Development of polymer-modified cementitious membrane waterproofing systems using polymer-modified paste and mortar [68]... 

Figure 6.7 Schematic of possible components of a waterproofing system from Manning (1995).

However, the lack of waterproof membranes is why there are many cathodic protection systems are on bridge decks in Canada and the northern states of the United States, where membranes were not widely used, while many European systems applied to bridges are on the support structure. Membranes and cathodic protection are not easily compatible as gases are evolved by CP systems which could be trapped by a waterproofing system. This is discussed in Chapter 7. 

Price, A.R.C. (1989). A Field Trial of Waterproofing Systems for Concrete BridgeDecks, TRRL Research Report 185, Transport Research Laboratory, Crowthorne Berkshire, UK. 

In the traditional waterproofing systems, bitumen (or bituminous felt) was used commonly in the so-called built-up roofs. Since the introduction of plastic films, sheets of mainly... 

Over time it is far more economical than traditional waterproofing systems. A single layer membrane of thickness of 1.2 mm made from EPDM rubber provides superior waterproofness than multi-layer traditional material systems. 

In many countries asphalt felt coating is used to protect the building roof from leaking -the life of such a waterproofing system is only two to three years. For exceptional water and weather resistance the EPDM roof membrane is known to be serviceable for more than 20 years and virtually no maintenance is required. 

R. Bynum, Insulation Handbook, McGraw-Hill Professional, New York, NY, USA, 2000. Hertalan EPDM Roof Waterproofing System, Hertelan, WATFORD, UK, 2001, 3. 

ASTM D5295 Standard guide for preparation of concrete surfaces for adhered (bonded) membrane waterproofing systems. 

Adhesive and acoustic systems Floorings and coatings for industry, transport and sport Waterproofing systems Underground construction Concrete and mortar admixtures Repair, protection and maintenance Application equipment. 

Positive-side waterproofing systems postapplied to the surface of the element that is directly exposed to moisture, typically the exterior side of the foundation wall. They are available in numerous materials and forms. 

Blind-side waterproofing systems are preapplied to the area where the concrete element will be placed that is directly exposed to moisture. They are typically either a waterproofing sheet... 

Vector SBS, SIS, and SB styrenic block copolymers are produced as diblock-free and diblock copolymers. The company s process to make linear SBCs yields virtually no diblock residuals. Residual styrene butadiene and styrene isoprene require endblocks at both ends of the polymer to have a load-bearing segment in the elastomeric network. However, diblocks are blended into the copolymer for certain apphcations. Vector SBCs are injection molded, extruded, and formulated into pressure-sensitive adhesives for tapes and labels, hot-melt product-assembly adhesives, construction adhesives, mastics, sealants, and asphalt modifiers. The asphalts are used to make membranes for single-ply roofing and waterproofing systems, binders for pavement construction and repair, and... 

Guide for design of built-up bituminous membrane waterproofing systems for building decks... 

---