Batimix AWA 540

Anti-washout admixture for underwater concrete


BATIMIX AWA 540 is a liquid admixture that increases resistance to washout of cement and fines during casting of underwater concrete.

Main Purpose

BATIMIX AWA 540 is particularly recommended for underwater concreting where conventional concrete would result in a high percentage of material loss due to washout. It eliminates the need for expensive de-watering systems during underwater construction.

BATIMIX AWA 540 is based on high-grade water-soluble polymers, characterized by their long-chains of complex forms, which intertwine and develop attractive forces through their hydrogen bonds and polymer entanglements.

BATIMIX AWA 540 is used in all types of underwater construction with or without steel reinforcements.


Concrete prepared with BATIMIX AWA 540 is characterized by the following:

In the plastic state:

  • Greatly reduced-level of bleeding and segregation
  • Improved washout resistance in fresh and sea-water
  • Increased cohesiveness with fewer risks of water dilution
  • Improved stability of fresh concrete during casting and thereafter
  • Thixotropic action, providing enhanced homogeneity

In the hardened state:

  • At normal dosages, no detrimental effect on setting time
  • Improved durability and better surface quality


Brown liquid


  • 1MT Cubitainer
  • 200KG Metallic Drum
  • 20KG Metallic Pail
  • 4KG Metallic Pail

Health & Safety

BATIMIX AWA 540 is not considered a hazardous product. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable gloves and goggles should be worn. For additional information, kindly refer to the product’s Material Safety Data Sheet.