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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 Fosroc® Renderoc HB40 High performance, medium weight, very low shrinkage, patch repair mortar Uses For the reinstatement of large areas of reinforced concrete where low permeability characteristics are required and where higher compressive strength is an important consideration. Renderoc HB40 has been engineered for the repair of columns and beams but, because of its relatively low fresh wet density, is also suitable for soffits and other overhead repair work. The mortar can also be used for small, localised patch repairs. Where compatibility with lower strength concrete is required, but low permeability and high-build characteristics are important, Renderoc HB25 should be used. For higher strengths Renderoc HB70 should be used. Important Note 1: When Renderoc HB40 is used in conjunction with Impressed Current Cathodic Protection or Norcure Realkalisation and Desalination methods, the substrate bonding primer should be an OPC: Water slurry mixed at a 2:1 ratio. Polymer bonding agents should not be used. No steel primer should be applied. Please refer to Parchem for further advice. Important note 2: Renderoc HB40 is approved for use with Galvashield XP, with a resistivity <15,000Ÿcm @ 28 days. Description Renderoc HB40 concrete reinstatement mortar is supplied as a ready to use blend of dry powders which requires only the site addition of clean water to produce a highly consistent, medium-weight repair mortar. It is based on Portland cements, graded aggregates, lightweight fillers and chemical additives which provide a mortar with good handling characteristics while minimising water demand. The low water requirement ensures good strength gain and long-term durability. Technical Support Parchem offers a technical support package to specifiers, end-users and contractors, as well as on-site technical assistance. Advantages „ Maximum compatibility with concrete of compressive strengths 30 - 45 MPa „ High-build applications possible while maintaining higher compressive strengths - fewer cold joints „ Frequently obviates the need for formwork „ Polymer-modification provides extremely low permeability to water, carbon dioxide and chlorides „ Exceptional system of shrinkage compensation provides long-term dimensional stability „ Can be applied quickly and efficiently by wet spraying „ One component, pre-bagged to overcome site-batched variations „ Contains no chloride admixtures „ Suitable for internal and external applications „ Potable water approved - complies to AS/NZS 4020:2005 Design Criteria Renderoc HB40 exhibits a series of performance characteristics designed to achieve maximum compatibility with concrete with a compressive strength greater than 30 MPa. Specification Clauses High-build concrete reinstatement mortar The reinstatement mortar shall be a single component polymer-modified, cement-based blend of powders to which only the site-addition of clean water shall be permitted. It shall be manufactured to achieve maximum compatibility with reinforced concrete with a compressive strength greater than 30 MPa and as a consequence, shall exhibit the following characteristics when tested to the standards shown. March 2014 13


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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