Oil-pressure measurement in the two-point workability apparatus Available to Purchase

Large fluctuations in the oil pressure within the twopoint apparatus during concrete testing make any reading of the pressure gauge open to operator bias. This paper details the fitting and use of a pressure transducer system capable of measuring, recording and analysing the oil pressure. Results obtained using the pressure gauge and the pressure transducer indicate that operator experience in Combination with mix workability has some influence upon the accuracy of the gauge readings, and this underlines the substantial benefits of the proposed system.