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Technical Dayta Sheet Compedium

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 (%) 120 Page 1 March 2008 567 Leakmaster Gun applied, water-swellable, waterstop paste Uses „ For bonding Hydrotite profiles to rough concrete surfaces „ Water sealing joints of cast in-situ concrete „ Water sealing around “H” section steel joists „ Sealing rough surfaces „ Shotcrete „ Box culverts „ Can support 20 m heads of water „ Excellent for pipe penetration „ To provide sealing around traditional PVC waterstops to provide a ‘belts and braces’ seal before a concrete pour Advantages „ Easy application to smooth and uneven surfaces as a moisture-cure one component type water-swelling sealant „ Physical properties: after hardening, it has better physical properties than those of conventional putty type sealants „ Water swelling up to approx. 2 times in volume as a result of its water absorption and swelling mechanisms. Provides excellent water sealing properties (for construction joints) without losing its rubberlike elasticity „ Good adherence: before swelling It adheres to various materials such as concrete, metal, glass, etc Description Leakmaster LV-1 is a one component polyurethane waterswelling sealant with excellent and unique physical properties. Its development was based on technology and experience in water-swelling waterstops i.e. Hydrotite. It can be applied to joints, etc., in civil engineering, construction and water services for seals where conventional solid waterstops cannot be applied easily. After hardening, it has excellent physical properties together with rubberlike elasticity and excellent water sealing properties. Properties Appearance: Putty-like Colour: Grey Specific gravity: 1.30 Extrudability: Within 20 sec. (at 23ºC) Slump: Max. 3 mm (at 23ºC) Tack-free time: Within 8 hours (at 23ºC, 60% R.H)) Properties After Hardening Hardness: 35 (Spring-A-Type) JISK 6253 Tensile strength: 2.94 MPa JISK 6251 Elongation: 1250% JISK 6251 Tear strength: 9.8 N/mm JISK 6252 Swelling Properties 0 1 2 3 4 5 6 7 8 9 10 100 50 Increase in Volume (%) Test Method 1. Immerse in water after hardening (7 days), then increase in weight (%) is measured. 2. Test specimen: 20 x 10 x 50 mm 3. Water temperature: 20ºC ~ 15ºC Days Immersed (days) Adhesion Properties Steel Aluminium Mortar 50% Modulus (MPa) 0.44 0.64 0.64 Max Tensile Strength (MPa) 0.69 1.20 1.09 Elongation at Break (%) 330 580 570 Concrete Cover Cover the applied Leakmaster with enough thickness of concrete coverage in order to avoid concrete crack (refer to Figure 1 below). A 320 ml cartridge will provide enough material for approx. 3 meters when gunned to form a 10 mm diameter bead. Figure 1: Thickness of concrete coverage (mm) 150 100 50 3 6 10 Nozzle Diameter (mm) March 2008


Technical Dayta Sheet Compedium
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