Compressive Yield Stress of Cement Paste

Abstract

Compressive yield stresses have been measured for pastes (0.35 ≤ w/c ≤ 0.50) of portland cement, calcium aluminate cement, and weakly and strongly flocculated alumina (ø0 = 0.20) using the centrifuge sediment height technique. Equilibrium sediment heights are reached quickly, allowing all measurements to be taken during the cement’s induction period. The compressive behavior showed little dependence on the compressive history. Compressive yield stress was, however, dependent upon initial volume fraction, decreasing as the initial volume fraction increases. This behavior was observed in both the cements and alumina suspensions, implying that strong dependencies on initial structure may be a general property of the compressive behavior of flocculated suspensions.

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Correspondence to Kelly T. Miller.

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Miller, K.T., Shi, W., Struble, L.J. et al. Compressive Yield Stress of Cement Paste. MRS Online Proceedings Library 370, 285–291 (1994). https://doi.org/10.1557/PROC-370-285

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