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32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX Technical Data Sheet 515 ® Vandex® BB75E-Z High performance, crack accommodating, surface applied, cement based render, waterproofing barrier for positive and negative water pressure applications Uses Waterproofing of concrete and masonry structures both new and old where live cracks are present. Vandex BB75E-Z is a flexible cementitious membrane and does not rely on crystal growth to achieve its waterproofing. As a result, BB75E-Z can be used on most masonry surfaces, including sandstone, provided that the surfaces are adequately prepared. Vandex BB75E-Z has been formulated using sulphate resisting cement making it ideal for application in sewerage environments. It can be applied to either the pressure or non-pressure faces of the concrete or masonry. Vandex BB75E-Z is excellent for solving the problem of water seepage through concrete and masonry where live cracks are present in both new and old structures. Vandex BB75E-Z is ideal in applications where the high pressure face is not easily accessible. It is also ideal for waterproofing the inside face of swimming pools, sewerage processing tanks, concrete block walls and any masonry surface where crystal growth waterproofing will not be effective due to a lack of alkalinity in the substrate. Other applications include; basement walls, lift pits, water storage and drainage tanks, sewer aqueducts etc. Advantages „ Permanently flexible and accommodates dynamic crack movement up to 0.5 mm „ Applied to either the pressure or non pressure face of concrete „ Based on sulphate resisting cement making it suitable for use in sewerage processing tanks „ Works on masonry, brick, stone and concrete blocks where crystal growth treatments are not effective „ Approved for potable water contact „ Non-toxic „ Suitable for permanent sunlight exposure after curing „ Tested to withstand a water head of 70 metres „ Colour compatible with the host concrete „ Can be applied to damp concrete Description Vandex BB75E-Z is a ready-mixed, two component, polymer modified, cementitious, waterproofing membrane which is made by mixing Vandex BB75-Z with Vandex Elasticiser PK 75. The BB75-Z powder component consists of grey sulphate resistant cement, graded quartz sands and inorganic additives. The Elasticiser PK 75 is the polymer component. Vandex BB75E-Z is waterproof and has been tested to a pressure of 7.0 bar (70 m water head). The initial and final bonding capability of BB75E-Z is excellent, making it suitable for application to both vertical and horizontal surfaces. It is durable, resistant to frost and heat after setting and remains permeable to water vapour. Test reports and approvals Australian Standard AS/NZS 4020:1999 ‡ Potable water compatibility Official Materials Testing Institute Clausthal- Zellerfeld ‡ Mechanical properties / waterproofing ‡ Cracking strain / tensile strength / bridging capacity / H2O-vapour diffusion / absorption coefficient / water penetration Official Materials Testing Institute Clausthal- Zellerfeld ‡ Waterproofing - water penetration Design Criteria In most waterproofing applications, Vandex BB75E-Z is applied in 2 coats by trowel or spray. Specific minimum application rates are as follows; Ground moisture - 2 coats by brush, trowel or spray at an application rate of 2.0 kg / m² / coat. (Total minimum layer thickness for 2 coats must be 2.0 mm). Pressureless surface water - 2 coats by brush, trowel or spray at an application rate of 2.0 kg / m² / coat. (Total minimum layer thickness for 2 coats must be 2.0 mm). Water under pressure - 2 coats by brush, trowel or spray March 2013


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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