Home Articles New Corrosion Resistant Admixture for Reinforcement Bars-Technology Developed By CSIR-CECRI, Karaikudi. A ...

Corrosion Resistant Admixture for Reinforcement Bars-Technology Developed By CSIR-CECRI, Karaikudi. A Premier R & D Institute in The World-Under The Ministry of Science & Technology, Govt. of India.

RCC structure Corrosion

In fact, when we design any RCC structure Corrosion on Reinforcement bar is a major concern and generally when we reach at less than half of designed service life, process of corrosion on reinforcement bar start taking place which proves havoc on the later stages.

Presently different Anti corrosive coatings like Cement Polymer Composite Coating (CPCC), Epoxy Coating, Fusion Bonded Epoxy Coating, Cement Slurry Coating- 4 step treatment etc. are available in the market.

As the process of coating on reinforcement bar has different demerits &limitations there was a great demand to develop some effective, economical, low dosage & user friendly additive which can be mixed while making concrete at site or at RMC Plant itself without adversely affecting physical properties of concrete to enhance corrosion free service life of RCC structures.

Seeing the demand and need of time CLEANFLO INDIA PRIVATE LIMITED, Delhi (India) in Technical Association with CSIR-CECRI (A Premier R & D Institute In The World) under The Ministry Of Science And Technology Govt. Of India, started working on it around two decade ago and finally came up with excellent product Known as CLEANFLO CRA 7971 “Corrosion Resistant Admixture for reinforced concrete”.

Inimitable Advantages:

  • User and Eco Friendly.
  • Non toxic in nature.
  • Extremely suitable for high chloride environments.
  • Does not affect the bond strength of concrete.
  • Does not adversely affect the physical properties of concrete.
  • Involves a simple step of adding the admixture during the preparation of concrete.
  • Alternate to Rebar Coatings.



Point of Addition:

CLEANFLO CRA 7971 is directly added just like other admixtures into wet concrete at the batching plants with batch water. It can also be added to the transit mixture at the site, mix along with batch water at the time of discharge.


CLEANFLO CRA-7971 is highly suitable for all types of RCC structures situated in Marine, Aggressive, Mild and Moderate Environments like :

  • Highway Bridges ?
  • Refineries ?
  • Flyovers ?
  • Marine Structures ?
  • Power Plant ?
  • Hydraulic Structures ?
  • Underground Structure ?
  • Railways Sleepers ?
  • Flyovers ?
  • Industrial Structures ?
  • Jetties ?
  • Residential Buildings ?
  • Commercial Buildings ?
  • Docks ?
  • Hydro Projects Dam ?
  • Airport ?
  • Runways


200 ML of CLEANFLO CRA 7971 per bag of Cement for Mild & Moderate Environment and 250 ML per bag of Cement for High Chloride Environment (It should not be mixed with any other admixture prior & being introduced in the concrete.

Packing Size: 

  • 25 Lt, 50 Lt & 200 Lt Drum.


  • CLEANFLO CRA 7971 Approved by DMRC.
  • Enlisted in Telangana & Aandhra Pradesh Building SOR 16-17,17-18, 18-19

CLEANFLO, which is specialize in Water Treatment & Corrosion Management, for last 40 years offers solutions, equip-ment, engineering & formulations to industrial operator, having its own NABL accredited Lab and R&D Center. We also manufacture Soil & Water Testing Kits and offer Food Testing services.

For further details & dealership enquiry:

Cleanflo India Private Limited
403, Gupta Tower, Commercial Complex, Ring Road, Azadpur,
Delhi-110033, India
Tel: 011-47003700, Mob: 9891060440,
Email: cleanflo@cleanfloindia.com
Web: www.cleanflo.com


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