Answered Questions

  • Grade of PPC cement

    Why is the grade of PPC cement is not mentiond or defined as per Indian Standard" IS 1489-1991.

    VP Annadurai

    • Aug 16th, 2019

    PPC cement made from OPC cement by adding fly ash 20% 30%, so it is equal to 33 grade.

    Sanchit garg

    • Aug 11th, 2015

    When we add fly ash to make PPC then its strength is not fixed.
    More you do curing more you get strength, moment you stop curing strength will stop that place. Where as in OPC highest strength is fixed to a mark. that is why OPC has grading but PPC dosen't have.

  • Volumes of Wet and Dry Sand

    How to differentiate the volumes of wet and dry sand / soil?

    B.Mohamed Mansoor

    • Nov 3rd, 2013

    It should find out by Rapid moisture meter ,method moisture correction method.

    IN Wet sand moisture become more and it dry moisture become less then wet.

    In sand moisture should be allowing only 12 %

    Bharath M

    • Dec 9th, 2011

    25% of Volume will be differ from the both.