Fosroc Conbextra EP10 High strength, low viscosity epoxy resin grout Uses Provides a free flowing grout, for use where physical properties and chemical resistance of the hardened grout are of utmost importance. It is suitable for a wide range of heavy duty applications including : ! Underplate grouting to structural elements. ! Base plate grouting in dynamic load situations such as turbines and other reciprocating machinery. ! Heavy industrial applications in steelworks, refineries chemical plants and electroplating works. ! Structural infill where very high strength is required. ! Rail track applications, to support heavy cranes, or on transporter rails. Advantages ! Excellent durability - high compressive, flexural and tensile strengths ensure a long working life. ! Cost effective - high early strength gain promotes minimum downtime and early commissioning of plant. ! User friendly - simple, full pack mixing to ensure that the performance characteristics are achieved. ! Versatile - suitable for a wide range of loading situations including repetitive dynamic loads. ! Excellent in service performance - non-shrink capability ensures full surface to surface contact. Description Conbextra EP10 is a solvent free epoxy resin grout designed for grouting of gap widths of 0.25 to 10mm. It is an all liquid system consisting of base and hardener. The components are supplied in the correct mix proportions designed for whole pack mixing on site. Specification Where shown on the contract documents, the epoxy grout shall be Conbextra EP10 supplied by Fosroc. When tested at 7 days it shall provide compressive strength greater than 90, Tensile strength greater than 25 & Flexural strength greater than 60. It shall also provide good chemical resistance. Properties Pot life : 90 min. @ 20??C 40 min. @ 35??C Density : approx. 1050 kg/m3 Tensile strength : 26 N/mm2 @ 7 days Flexural strength : 63 N/mm2 @ 7 days Compressive strength : 57 N/mm2 @ 1 day 66 N/mm2 @ 3 days 93 N/mm2 @ 7 days Instructions for use Preparation Underplate grouting The unrestrained surface area of the grout must be kept to a minimum. Generally, the gap between the perimeter formwork and the plate edge should not exceed 75 mm on the pouring side and 25 mm on the opposite side. Formwork on the flank sides should be kept tight to the plate edge. Air pressure relief holes should be provided to allow venting of any isolated high spots. Formwork The formwork should be constructed to be leak proof as Conbextra EP10 is a free flow grout. This can be achieved by using foam rubber strip or mastic sealant beneath the constructed formwork and between joints. For free flow grout conditions, it is essential to provide a hydrostatic head of grout. To achieve this a feeding hopper should be used - please consult your local Fosroc office for more details. Foundation surface This must be free from oil, grease, or any loosely adherent material. If the concrete surface is defective or has laitence, it must be cut back to a sound base. Bolt holes or fixing pockets must be blown clean of any dirt or debris. Base plate If delay is likely before placing steel base plates, it is recommended that the underside and edges are coated with Nitoprime 25* to prevent rust formation and ensure bonding with the Conbextra EP10 grout. All metal surfaces should be cleaned to a bright finish in accordance with Swedish Standard SA 2??or equal. Nitoprime 25 can be applied directly onto newly cleaned steel surfaces even if they are damp.
