Prediction of cement paste pore water pressure variations during setting period

Summary

Cement paste with a water:cement ratio of 0.36 was placed in a glass cylinder to a height of 1 m and pressure applied to simulate the conditions in formwork of 1-10 m depth. Total pressure and pore water pressure were measured 1 m below the surface. Both pore water pressure and the total lateral pressure were hydrostatic, with identical kinetics. The lateral pressure was modelled using the Richards equation, the permeability coefficient being determined from a drainage experiment. The model predictions of pressure variations in formwork were in good agreement with experimental measurements. 7 refs.

Primary author(s): Amziane S;Andriamanantsilavo N

Source: Adv.Cem.Res.

             Vol.16, No.1, 2004, p.17-22

 

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