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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 General purpose, economical, patch repair mortar Uses For the reinstatement of large areas of concrete and for small, localised patch repairs. Renderoc HB is alkaline in nature and will protect embedded steel reinforcement. It is specifically designed for vertical and overhead high-build applications. The mortar is suitable where medium strength, as well as exceptional chloride and carbon dioxide resistance is required. Description Renderoc HB, a lightweight concrete repair 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, lightweight repair mortar. The material is based on Portland cement, graded aggregates, lightweight fillers and chemical additives and is polymer modified to provide a mortar with good handling characteristics, while minimising water demand. The hardened product exhibits excellent thermal compatibility with concrete and outstanding water repellent properties. The low water requirement ensures fast strength gain and long-term durability. Technical Support Parchem offers a technical support service to specifiers, end-users and contractors, as well as on-site technical assistance. Advantages „ Lightweight formulation enabling extra high-build and thereby saving time and expense of multiple applications March 2014 5 „ Reduces the need for formwork „ Can be applied by the wet spray process for fast, exceptionally high-build repairs with enhanced strength „ Extremely low permeability provides maximum protection against carbon dioxide and chlorides „ Excellent bond to the concrete substrates „ Shrinkage compensated „ Pre-bagged to overcome site-batched variations - only the site addition of clean water required „ Contains no chloride admixtures Design Criteria Renderoc HB has been engineered for the repair of columns and beams, but, because of its relatively low fresh wet density, can readily be used for vertical and overhead repair work. It can be applied in sections up to 80 mm thickness in vertical locations and up to 50 mm thickness in overhead locations in a single application and without the use of formwork. Thicker sections can be achieved by the use of formwork or can be built up in layers. Deep pockets can sometimes be filled in a single application dependent on the configuration of the pocket and the volume of exposed reinforcing steel. Build can be dramatically increased by wet spraying. Typical achievable thicknesses are 70 - 150 mm vertically and 70 - 100 mm overhead, although this will depend on substrate profiles and the distribution of steel reinforcement. Consult your local Parchem sales office for further information. The material should not be applied at less than 10 mm thickness. Where strengths below 30 MPa and/or higher builds are required, Renderoc HB25 should be used. Specification Clause Repair mortar The fibre and polymer modified reinstatement mortar shall be Renderoc HB, a single-component cement-based blend of powders to which only the site-addition of clean water shall be permitted. The cured mortar shall achieve a compressive strength of 28 MPa and exhibit the following characteristics when tested to the standards shown. Fosroc® Renderoc HB


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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