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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 119 High flow, high ultimate strength, dual shrinkage compensated, precision cementitious grout Uses Heavy duty precision grouting of gaps from 10mm to 125mm, where high flow and high ultimate strength is required. Applications include grouting of: „ Baseplates and soleplates of large machines subject to moderate dynamic loads „ Crane rail soleplates „ Precast wall panels, beams, columns and structural building members Advantages „ Non-metallic dual expansion system compensates for shrinkage in both the plastic and hardened states „ Excellent initial flow and flow retention suitable for large and small grout pours „ Rapid strength gain facilitates efficient installation and operation of plant „ High ultimate strength and low permeability ensure durability of the hardened grout „ Hydrogen-free gaseous expansion „ Chloride free „ Suitable for pumping or pouring over a large range of application consistencies and temperatures Standards Compliance Conbextra HS conforms to AS1478.2-2005 Appendix E test for early volume change and AS1478.2.2005 (table 4.1.2.2) for workability. Technical Support Parchem offers a comprehensive range of high performance, high quality construction products. In addition, the company offers a technical support package to specifiers and contractors as well as technical advice from staff experienced in the construction industry. Description Conbextra HS, shrinkage compensated ultra high-strength cementitious precision grout, is supplied as a ready to use dry powder. The addition of a controlled amount of clean water produces a free-flowing precision grout for gap thicknesses up to 125 mm. In addition the low water requirement ensures high early strength and long term durability. Conbextra HS is a blend of Portland cements, graded fillers and chemical additives which impart controlled expansion in both the plastic and hardened states. The filler grading minimises segregation and bleeding over a wide range of application consistencies. Maximum aggregate size for pumping is 1.0 mm. Specification Clauses Supplier specification All precision grouting (specify details and areas of application) must be carried out using Conbextra HS manufactured by Parchem and used in accordance with the manufacturer’s Technical Data Sheet. Performance specification To the nominated area(s) (specify details and areas of application), grouting must be carried out using a prepackaged, non-metallic and chloride free, dry powder blend of cements, graded fillers and chemical additives. It is to be mixed with clean water to the required consistency. The plastic grout must not bleed or segregate. The storage, handling and placement of the grout must be in strict accordance with the manufacturer’s instructions. A positive volumetric expansion of 1-2% shall occur while the grout is plastic state by means of a gaseous, hydrogen free expansion. Additionally the grout is to be formulated to compensate for longer term expansion in the hardened state, to compensate for drying shrinkage. It shall exhibit Flow Characteristics when tested to AS 1478.2.2005 of 10 - 30 seconds using the flow cone procedure. The compressive strength of the grout must exceed 75MPa at 7 days and 95MPa at 28 days. Fosroc® Conbextra HS March 2014


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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