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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 ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS TIMBER FLOORING ALPHABETICAL Fosroc® Conbextra EPHT 1, Class B or C. The grout must be stored, handled and placed strictly in accordance with the manufacturer’s instructions. The grout must be able to resist in-service temperatures up to 160°C. Instructions for Use Formwork design for underplate grouting: A typical grouting layout is shown in figure 1. INDEX 148 HG 1: Typical On-plate Shutter System Preparation Underplate grouting: The unrestrained surface area of grout must be kept to a minimum. Generally the gap between the perimeter formwork and the plate edge should not exceed 150 mm on the pouring side and 50 mm on the opposite side. The formwork should be constructed to be leakproof as Conbextra EPHT is a free flow grout. This can be achieved by using foam rubber strip or mastic sealant beneath the constructed formwork and between joints. Foundation surface This must free from oil, grease, or any loosely adherent material. If the concrete surface is defective or has laitance, it must be cut back to a sound base. Bolt holes or fixing pockets must be blown clean of any dirt or debris. All surfaces must be substantially clean and dry. Mixing The entire contents of the base and hardener should be poured into a suitable container and mixed for 2 minutes with a festo mixer or a slow speed drill fitted with spiral mixing blade. Slowly add the fillers to the mixed base and hardener while continuing to mix for a further 3 minutes using a forced action mixer. Once mixed, the material must be used within the specified pot life (see Properties). After this time, unused material will have stiffened and should be discarded. Placing Place the grout within the pot life of the material. Continuous grout flow is essential. Sufficient grout must be available prior to starting and the time taken to pour a batch must be regulated to the time taken to prepare the next one. Pouring is to be from one side of the void entry to eliminate the entrapment of air. The hydrostatic head must be maintained at all times so that a continuous grout front is achieved. Please refer to the Conbextra Epoxy Grouts Application Guide for further information. This is available from the website or your local Parchem branch. Cleaning All tools and equipment should be cleaned with Solvent 10 immediately after use. Estimating Supply Conbextra EPHT is supplied in 14 litre packs containing base resin, hardener and fillers Storage Conbextra EPHT has a shelf life of 12 months if kept in dry conditions at 20°C.


32857 Parchem Technical Data Compendium 2015_Crop4emag.pdf
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