Technology Profile


    Title of Product / Design / Equipment:

      Corrosion Resistant inhibitive admixture for Portland Pozzolana Cement.

    IPR Status Patent/ Copyright /Trademark
    secured in Indian/Abroad IPR Details:

      Already patented.
    • Patent No: 1421 / Del / 99.


      *The process involves a simple step of adding inhibitors during manufacturing of cement or while making concrete at site.

    • *The added chemicals are in powder form and can be mixed at the factory itself, while producing cement or during making concrete.
    • *This product can be used for constructions in aggressive marine environments, since it is more corrosion resistant than normal cement due to the inhibitive nature of the added compounds.

    Salient Technical Features including
    Competing Features:

    • Table 1 Physical Properties
      TestPPCInhibitor admixed PPC
      Compressive Strength {N/mm 2 } Mortar specimens (3 days) Mortar specimens (7 days) Concrete specimens (28 days)16.00 17.75 38716.50 19.83 387
      Tensile Strength {N/mm 2 }1.2401.260
      Consistency [for 33 mm penetration]0.3280.290
      Initial setting time (minutes)149135
      Final setting time (minutes)345330
      Table 2 Corrosion resistant properties of cements
      Performance StudiesAdded chloride ( ppm)PPCInhibitor admixed PPC
      Weight loss {Corrosion Rate - mmpy }100000.01910.0029
      Electrochemical Impedance (Rct value) {K ohms cm 2 }100003.59149.377
      Linear Polarization resistance (Rp value) {K ohms cm 2 }100006.22031.554
      Anodic Polarization Potential (mV) Initial10000.7501.100
      Peak potential Current {micro ampere}100001100. 325

    Commercialization Status: