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Contact SupplierIS 1199-1959, IS 4031 1968 BS 1881, ASTM C 151, C490It Is Used To Measure The Dying Shrinkage Of Concrete Autoclave Expansion Of Portland Cement And Potential Expansive Reactivity Of Cement Aggregate Combinations In Mortar Bars During Storage, On Self Drying.The Instrument Consists Of A Channeled Base Over Which Two Vertical Pillars Are Fixed. An Adjustable Cross Plate Is At The Top. A Dial Gauge, Reading To