www.chinadmar.comExport DepartmentMolly LiPhone: +86 - 021 - 65177226/+86 - 013671984686Fax: +86 - 021 - 65176004Show more contact information
Room 205,No.1 Building,Hongye Mansion,Lane 515,South Xinshi Road,Hongkou District,Shanghai City
shanghai, ShanghaiChina, 200434Web Page Link: http://www.toboc.com/demeibuildingmaterialsengineeringco
dmargrout& 174 828 tunnel and shaft grout is a non-shrink, cementitious aggregate-free grout with a unique 2 phase shrinkage compensating mechanism. it is non-metallic and contains no chlorides with a special blend of shrinkage-reducing and plasticizing/water-reducing agents. dmargrout& 174 828 compensates for shrinkage in both the plastic and hardened states. it produces a fluid, pump-able nonshrink non-bleeding, hing-strength product. it provides corrosion protection for highly stressed steel tunnels.advantage 1.just add water,easy to use.2.high fluidity,non-bleeding,excellent for pumping, no build-up on equipment or hoppers.3.can be cured at low temperature4.sand free allows filling and repairing of voids within tunnels.5.a positive expansion 4~8 Percent.6.superior freeze/thaw resistance.7.non-corrosive, does not contain chlorides.8.hardens without settlement shrinkage or voids.9.pre-packaged in accordance with iso 9001 which ensures consistency of the manufactured material.application 1.used for re-grouting of shafts and tunnels.2.used for cavity grouting for segmental lining3.used for pressure grouting.4.used for grouting tunnel anchor plates where grout s highly stressed anchorages technical dataitempropertiesappearancegray powdercomponentportland cementwet density2.00kg/lwater-cement ratio0.26~0.28total chloride ionsnoneinitial setting time( gb/t1346-2001)about 4h to 12hfinal setting time( gb/t1346-2001)less than 24hflow cone efflux time (tb/t3192-2008)20~35s24h swell ratio ( tb/t3192-2008)between 4 Percent and 8 Percentbleeding3h024h0grouting pressureless than1mpacompressive strength (gb/t17671-1999)1dmore than 20mpa3dmore than 35mpa7dapproximately 50mpa28dapproximately 60mpayieldone bag (25 kg) of dmargrout& 174 828 mixed at 22& 176 c with water as the water-cement ratio of 0.26~0.28 produces approximately 0.016m& 179 of fluid grout at a 20 – 30second flow. one ton is produced approximately 0.64 m& 179.packingit is applied for 25 kg multi-wall paper bagsshelf lifeabove 6 months when properly stored storage dmargrout& 174 828 should be stored in unopened packaging in clean, dry, cool environment away from heat or sunlight.
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