A cement is a binder, a chemical substance used for construction that sets, hardens, and adheres to other materials to bind them together. It is most widely used material in existence and is behind only water as the planet's most-consumed resource.
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Description: VCOLD is a rapid-setting structural repair mortar. It is designed primarily for the durable repair of concrete. Utilising all the latest technology this Portland cement-based and fibre-reinforced product is extremely strong and hard wearing. This makes it ideal for roads, runways, bridges, decks, floors and footpaths. Requiring only the addition of water, this single component mortar is rapid curing. VCOLD quick set mortar is physically and chemically compatible with the host concrete. This means it is quick to exhibit a high adhesive and compressive strength. Product name: VCOLD Compressive strength - 35 Mpa, in 6 hours - 50 Mpa, in 1 day - 80 Mpa, in 1 week Application temperature - In cold temperatures, tepid water may be used to adjust working life - In 20-40 temperatures, cold water should be used to adjust working life Mixing ratio: - 25kgs powder: 3,7L water - 5kgs powder: 0.7L water Uses of VCOLD VCOLD is used on floors that are subjected to heavy wear such as: - Roads - Runways - Bridges - Decks - Floors - Footpaths The repair mortar can be used as supplied up to 100mm deep. It can also be bulked out with clean, washed, sharp sand to form a high performance screed or for floor or deck repairs up to maximum depth of 300mm. One barrel 25kgs of VCOLD produces 13 litres Applying VCOLD Rapid Set Repair Mortar: VCOLD should only be installed by those experienced in structural waterproofing. Please follow manufacturerâ??s instructions for full details across the range of applications. Preparation â?? Start by mechanically removing all damaged concrete back to a sound core. Ideally you want to expose the steel reinforcement to at least 25mm behind the bars and 50mm beyond the point at which corrosion is visible. The perimeter of the repair area should be stepped to a depth of 10m using a saw, disc cutting or preferably a power chisel. Make sure that all areas to be repaired are free from dust, oil, grease, corrosion by-products and all organic growth. Any smooth surfaces should be roughened with any surface laitance removed. You should now thoroughly soak the prepared surface with clean water until uniformly saturated. Ensure there is no standing water. Mixing: Mechanically mix VCOLD using a forced action pan mixer or in barrel using a drill and paddle. Normal applications = typically use 3,7 litres of clean water per 25kgs barrel Normal applications = typically use 0.7 litres of clean water per 5kgs barrel Note: - In cold temperatures, tepid water may be used to adjust working life - In 25-40 temperatures, cold water should be used to adjust working life Important Note: The product cannot be mixed using a normal concrete mixer. Pot life is about 10 minutes, depending on the temperature and humidity. For screeding applications or deep repairs consult technical sheets.
APPLICATION OF SK-HB K-SILICATE MORTAR : * K-SILICATE is used for jointing Acid Resisting brick in construction of vessels in suited for construction of fume chambers and stacks handling hot, dry Acid fumes and vapors. It is also used for jointing chemical resisting stoneware pipes. K-SILICATE cement is good bedding material for Acid â?? Resisting bricks and tiles. The concrete surface needed protection should be dryed, clean and rough. The bricks or tiles will be set with K-SILICATE cement over concrete surface applied with a suitable an impermeable interliner. When Bedding and Jointing Materials are the same. On the treated surface bricks or tiles are bedded to a thickness of about 6 mm and tamp gently with a wooden piece till the paste squeezes out of joints. The paste that is squeezed out of the joint should be removed by trowel with good finishing. After the mortar of the joint is dryed treat the joints with 20% Hydrochloric Acid Solution by means of brush. A.R.lining should be always in contact with Acid and not with water. Concrete subtract like Floor, Wall, tanks and similar surface should be protected with a membrane of Bitrok Mastic or compound steel tanks should be protected with rubber or PVC subjected to chemical conditions and temperature of chemical media. The Brick lining is recommended over the protective layer of Bitrok Mastic. When Bedding and Jointing Materials are Different. Spread the silicate type mortar about 6 to 8 mm thick on the back of the tile or brick. Press the tile on the bed leaving required space for joints between tiles for bricks. After the bedding mortar is set, fill Mp the joints with specified cement.PRODUCT DATA SHEET FOR SK-HB ( K-SILICATE) MORTAR A general purpose cement for acid conditions Resistant to High & medium concentrations of most of the common organic and inorganic acids except Hydroflouric acid. Recommended where the concentration of the acid is high suitable for high temperature. Unsuited to aqueous solutions, alkaline conditions. PREPARATIONS OF MORTAR : * Measure 1 part by weight of K-SILICATE solution into a suitable mixing pan. * Add slowly and gradually 3 parts by weight K-SILICATE mortar and mix thoroughly to form a smooth mortar. * In hot season very large batches of mortar will become stiff quite rapidly therefore small batches, not exceeding 4 to 8 kgs. Will be prepared. * The cement mortar will be used before it starts setting.
Items/ index P. O 42.5 P. O 42.5r Cement mgo (%) 5.0 4.0 5.0 4.0 Cement so3 (%) 3.5 3.0 3.5 3.0 Cement loss on ignition (%) 5.0 4.0 5.0 4.0 Cement fineness (%) 10.0 4.0 10.0 4.0 Setting time (min)Initial setting time ,45 ,60 ,45 ,60 Final setting time 600 270 600 270 Soundness Qualified Qualified Qualified Qualified Strength 50kgs per bag
ZOE Cement Quick Set Easy mix rapid setting zinc oxide - eugenol cement for thermal insulation and temporary restoration. INDICATIONS Ideal temporary sealant and filling material for cavities after removal of carious dentine before permanent restoration Perfect cavity liner Temporary fixation of crowns and bridges Ideal cavity liner under most restorative materials PRODUCT BENEFITS Easy mix powder liquid composition Rapid setting Effective thermal and chemical insulator Excellent flowablility High compressive strength Excellent cavity liner compatible under most restorative materials
Specification: CEMENT 42.5 N: Chemical Composition Silicon Dioxide (SIO2) 21 Aluminum Oxide (AL203) 5.3 Ferric Oxide (FE203) 3.3 Calcium Oxide (CAO) 65.6 Magnesium Oxide (MGO) 1.1 Sulphur Trioxide (SO3) 2.7 Loss Of lgnition (LOI) 0.9 Tricalcium Silicate (C3S) 60 Dicalcium Silicate (C2S) 15 Tricalcium Aluminate (C3A) 8.05 Tricalcium Alumino Ferrice(C4AF) 9.76 CEMENT 42.5 N : Physical and Mechanical Blain CM2/GR 3.25 Autoclave Expantion 0.02 Initial Setting Time (VICAT) 105 minutes Final Setting Time (VICAT) 135minutes Compressive Strength @03 days 230 kg/sm2 @07 days 305 kg/sm2 @28 days 420 kg/sm2. Cement will be supplied in 50KG PP bags.
Cement 42.5 Specification: ordinary grey portland cement 42.5 ren 197-1/2000 and british standards bs12/96 Ordinary portland cement Specification sheet Construction grade 42, 5 Colour grey Minimum standards to be met:according to british standards 12/1996 or Astm c-150 , en û 197 û 1/2000 Chemical composition Aluminium oxideal2o35.30 Calcium oxidecao65.60 Dicalcium silicatec2s15.00 Ferric oxidefe2o33.30 Loss of ignitionloi0.9 Magnesium oxidemgo1.10 Silicon dioxidesio221.00 Sulphur trioxideso32.70 Tricalcium aluminatec3a8.05 Tricalcium alumino ferricec4af9.76 Tricalcium silicatec3s60.00 Physical and mechanical roperties Blain cm2/gr3.250 Autoclave expansion0.02 Initial setting time (vicat)105 minutes Final setting time (vicat)135 minutes Compressive strength @ 3 days230kg/cm2 Compressive strength @ 7 days305kg/cm2 Compressive strength @ 28 days420kg/cm2 50 kgm bags
Cement Specifications: Compressive strength 3 days >= 16.0 mpa 28 days >= 42.5 mpa Bent strenght 3 days >= 3.5 mpa 28 days >= 6.5 mpa Initial set >= 45 mins. Final set
