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Ambuja Kawach

Fly ash-based cement that repels and prevents penetration of water in concrete

March 2021
Gallery Ambuja Kawach 1
Gallery Ambuja Kawach 1


It has been observed that most newly constructed buildings face issues like seepage, dampness & leakages within the first 5 to 10 years. These problems are very common in India due to several factors such as persistent warm or high temperatures, tropical wet and dry climate , extreme weather conditions like heavy rains & very hot summer, shallow water table or improper & ineffective drainage systems causing waterlogging. Ambuja Kawach is a specially formulated product with high-quality water repellent properties which acts as a shield against water seepage in all construction applications. Ambuja Kawach is a newly developed blended cement based on Portland pozzolana cement-PPC ( fly ash based) and alternatively Composite cement (fly ash & slag based). It resists leakage & seepage due to its water repellence and thereby enhances the durability of the structures.

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Label Date March 30, 2021
By Holcim
From Switzerland
Maturity stage Medium and large scale commercialization
Looking For Credibility

The environmental benefits

  • Modified Portland Pozzolana Cement / Composite Cement
  • Specially developed silicon based additive for enhancing cohesiveness and giving water repellent properties
  • 32% lower carbon footprint as compared to local OPC (510 Kg CO2 / ton versus 749 Kg CO2 / ton)
  • Use of Ambuja Kawach enhances the durability of the structure and restricts maintenance/repair costs of structures thereby reducing overall material consumption during life cycle

The Financial benefits

  • It brings ~24 CHF per ton EBITDA
  • It also brings additional volumes to an untapped customer segment

Activity Region

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  • Headquarters
  • Activity

Company Profile


Building progress for people and the planet

View company profile Solution website
Headquarters 6300 Zug, Switzerland

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances. The innovator Holcim has asserted ownership of the intellectual property rights for images, videos, and content showcased above, affirming full and unrestricted usage rights, and has provided explicit permission for the Solar Impulse Foundation to publish such information designated as "public" in the application form.