Fosroc Conbextra GP2

Product Details:

Fosroc Conbextra GP2 Free flow, high strength, non-shrink, cementitiousprecision groutUsesConbextra GP2 is used for precision grouting where it isessential to withstand static and dynamic loads. Typicalapplications would be the grouting of base plates of turbines,compressors, boiler feed pumps etc., It can also be used foranchoring a wide range of fixings. These include masts,anchor bolts and fence posts.Advantages?? Gaseous expansion system compensates for shrinkageand settlement in the plastic state?? No metallic iron content to cause staining?? Pre-packed material overcomes onsite batching variations?? Develops high early strength without the use of chlorides?? High ultimate strength ensure the durability of the hardenedgrout?? Free flow ensures high level of contact with load bearingareaDescriptionConbextra GP2 is supplied as a ready to use dry powder. Theaddition of a controlled amount of clean water produces a freeflowing, non-shrink grout for gap thicknesses up to 100mm.Conbextra GP2 is a blend of Portland cement, graded fillersand chemical additives which impart controlled expansion inthe plastic state whilst minimising water demand. The lowwater demand ensures high early strength. The graded fillersare designed to assist uniform mixing and produce a consistentgrout.Technical supportAn experienced technical advisory team is available to givetechnical service on request.PropertiesCompressive strength : (BS 1881 - Part 116: 1983)Compressive strength (Nmm2)Age (days) Consistency Flowable (W/P 0.18) Pourable (W/P 0.165)1 24 273 45 547 55 6628 65 78Compressive strength with addition of aggregatesAge Compressive strength (N/mm2) W/P 0.18(days) % of aggregates ( IS 516 - 1959) 50% 75% 100%1 28 30 323 50 52 557 60 63 6828 70 75 78Flexural strength ( BS 4551, 1998)Age Flexural strength (N/mm2)(days)W/P 0.181 2.53 7.07 9.028 10.0Tensile strength3.5N/mm2 @ 28 days(W/P - 0.18)Pullout bond strength 17 N/mm2 @ 7 days(W/P - 0.18) 20 N/mm2 @ 28 daysTime for expansionStart : 20 minutes(after mixing ) Finish : 120 minutesFreshwet densityApproximately 2220kg/m3depending on actual consistency usedYoung''s modulus28 kN/mm2(ASTM D469 - 94)Dynamic load resistance Specimens of Conbextra GP2remained undamaged evenafter subjecting them toalternate loads of 5N/mm2 &25N/mm2 at the rate of 500cycles / minute for two millioncycles.