SBL-004

DESCRIPTION:

AT-SBL – 004 is a mid range water reducing cum set retarding liquid concrete plasticizer. AT-SBL – 004 is a highly efficient set-retarding admixture which temporarily prevents the chemical action of hydration process thus delaying the initial set in direct proportion to the dosage used. After the planned delay in the initial set, hardening develops at an accelerated rate. Suitable for use in hot and tropical climatic conditions.

STANDARDS:

AT-SBL – 004 complies with ASTM C 494 Type B & D and IS 9103-1999

USES:

AT – SBL – 004 is used to produce high quality concrete in difficult conditions such as high temperature, congested reinforcements, long haul etc. Especially suitable for structural and mass concrete where a controlled extension of setting time is required, such as:

• Large volume pours
• Difficult placing conditions
• Suitable for back fill cementitious grouts
• Re-vibrated concrete
• High temperatures
• Fair faced concrete
• Pumped concrete / Flow-able mortar
• Ready mix concrete

ADVANTAGES:

AT-SBL – 004 provides the following beneficial properties:

• Improves workability with reduced water content
• Very good for concrete where long haul is required
• Setting time of concrete is increased
• Accelerated hardening after setting
• Slump loss can be controlled for longer duration
• Reduces shrinkage & creep
• Chloride free hence does not attack reinforcement
• Ultimate strength is increased
• Superior surface finish is ensured

DOSAGE:

• The dosage of AT-SBL – 004 is 0.2% – 1.0% by weight of cement depending on the type of site requirement.
• The retardation rate achieved is directly dependant on the dosage rate which in turn is influenced by quality of cement and aggregates, w/c ratio and temperatures.
• It is always advisable to conduct site trial mixes to establish the exact dosage rate.
• AT-SBL – 004 should be directly dispensed into the mixing water prior to its addition to the concrete.

TECHNICAL DATA:

PACKAGING & STORAGE:

• AT-SBL – 004 is available in 200 kg / 50 kg HDPE barrel
• Shelf life is 12 months in original & sealed packing
• Keep packing in cool, dry place away from heat, cold and moisture
• Protect against contamination
• Stir material well before use

HEALTH & SAFETY:

• Protect hands with rubber gloves and eyes with goggles.
• Accidental splashes to the skin or eyes must be rinsed immediately with clean water.
• Store in well-labeled containers.