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CONSPLAX 411 R
- Reduce water cement ratio
- Better concrete workability
- Mass concrete admixture
- Concrete in aggressive water
CONSPLAX 411 R is a chloride and sulphate-free concrete plasticizer and water reducing agent, compliant with IS 9103-1999. Formulated after extensive research, it lubricates harsh mixes, increases cohesiveness and plasticity, and reduces the water-cement ratio without loss of workability — producing completely watertight, more durable concrete. Delivers a 40% increase in durability against sulphate salts, seawater and aggressive waters. Used extensively in mass concrete works — dams, barrages, canal lining, port projects — and all concrete structures requiring improved workability.
Specifications
Figures are controlled laboratory results. Actual site performance varies with substrate, temperature, humidity, application method and workmanship — please confirm the current product datasheet before specification.
Where to use CONSPLAX 411 R: concrete plasticizer IS 9103 compliant for mass pours
CONSPLAX 411 R is a concrete plasticizer IS 9103 compliant and free from chlorides and sulphates. This water reducing admixture lubricates harsh mixes, increases cohesiveness and plasticity, and lowers the water-cement ratio without loss of workability. You dilute it into a batch with clean water and add that to the mix for each bag of cement.
Mass Concrete (Dams, Barrages, Canal Lining)
Used extensively in mass pours to keep the mix workable and cohesive.
Port & Marine Projects
Improves durability against seawater and sulphate salts.
Slabs & All Concrete Structures
Reduces bleeding, segregation and honeycombing in slabs, columns and beams.
Screeds & Renders
Reduces drying shrinkage, crazing and pitting.
Hand-Mixed Concrete
Dosage can go up to the 25 ml maximum for hand-mixed work.
Lean Concrete Mixes
For lean mixes the dose may be increased to 25 ml per bag.
Pre-Cast Concrete
A more plastic, cohesive mix for casting pre-cast units.
Concrete in Aggressive Environments
Delivers a 40% increase in durability against aggressive waters.
If you are asking how to reduce water cement ratio on site, the standard dosage is 15–20 ml per 50 kg bag of cement, within a range of 5–25 ml. Do not exceed 25 ml. As a chloride free plasticizer compliant with IS 9103-1999, it delivers a 40% increase in durability against sulphate salts, seawater and aggressive waters. Prepare the batch by dissolving 1 litre in 49 litres of clean water, then use 1 litre of that batch per bag at the 20 ml dosage.
Armstrong Chemicals supplies CONSPLAX 411 R to sites across Telangana, Andhra Pradesh, Karnataka, Kerala and Tamil Nadu, including Hyderabad, Vijayawada, Bengaluru, Kochi and Chennai.
Better Concrete Starts at the Mix
A chloride and sulphate-free concrete plasticizer and water reducer that lubricates the mix, reduces the water-cement ratio without losing workability, and delivers a 40% increase in durability against sulphate, seawater and aggressive environments — used in dams, port projects and critical infrastructure across India.
Get a QuoteThe Trade-Off Every Site Engineer Faces
Adding water to improve workability increases the water-cement ratio, weakening the concrete and increasing permeability. Reducing water without a plasticizer makes placing and finishing harder and slower.
The CONSPLAX 411 Advantage
A plasticizer that lubricates the mix and improves cohesiveness — so workability improves while the water-cement ratio reduces, producing stronger, watertighter, more durable concrete from the same materials.
40% Durability Increase Against Aggressive Waters
Tested and confirmed: CONSPLAX 411 R delivers a 40% increase in durability for concrete exposed to sulphate salts, seawater and other aggressive waters — critical for marine, coastal and industrial structures.
Plasticizer + Water Reducer in One
Two functions from a single admixture: reduces the water-cement ratio without loss of workability, while lubricating the mix to improve cohesiveness, plasticity and finishing — from 5ml to 25ml per bag, site-adjustable.
Trusted on India's Toughest Infrastructure
Built Into Better Concrete
A plasticizer and water reducer that makes the mix work harder, not just easier to place.
40% Durability Increase
Confirmed 40% improvement in durability against sulphate salts, seawater and aggressive waters — from test results at laboratories and project sites.
Chloride & Sulphate Free
IS 9103-1999 compliant with nil chloride and nil sulphate content — safe for all reinforced concrete structures and prestressed applications.
Reduces Water-Cement Ratio
Improves workability, cohesiveness and plasticity so less water is needed for the same slump — producing stronger, watertighter, more durable concrete.
Mass Concrete to Finishing
From dams, barrages and port projects to screeds, renders and pre-cast elements — a single dosage-adjustable admixture across the full range of concrete work.
Which plasticiser for your concrete grade
Armstrong admixture selection guide
How to Use
Stir CONSPLAX 411 thoroughly before use
Prepare the batch solution: dissolve 1 litre of CONSPLAX 411 in 49 litres of clean water to make a 50-litre batch solution
Ensure the compound is completely dissolved before use
At 20ml dosage per bag: use 1 litre of batch solution per 50kg bag of cement
At 15ml dosage per bag: use 750ml of batch solution per 50kg bag of cement
Adjust proportionally for other dosages within the 5–25ml range
Do not exceed 25ml of CONSPLAX 411 per 50kg bag of cement
At major project sites, determine the optimum dosage by conducting IS-specified mix design tests with job cement and aggregates, varying dosage from 5–25ml per bag
Applicable Areas
Packing & Shelf Life
No packing sizes or shelf life are stated in this product's TDS. Contact Armstrong Chemicals for current availability and pack sizes.
Dosage Limits
Maximum dosage is 25ml per 50kg bag of cement — do not exceed. At project sites, determine the optimum dosage through IS-specified mix design tests. Reduce the water-cement ratio when increasing CONSPLAX dosage to achieve the best results.
Batch Solution Method
Dilute 1L of CONSPLAX 411 in 49L of water to make a 50L batch solution. Use 1L of this solution per bag at 20ml dosage, or 750ml per bag at 15ml dosage — never add CONSPLAX 411 neat (undiluted) directly to the mix.
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Download Technical Datasheet
Full specifications, application systems, layering guides, and coverage tables.
Frequently Asked Questions
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