ABSTRACT

Following a detailed literature survey on modelling drying of concrete a finite element model is presented for drying of concrete pieces cast into various shapes. Simulations are carried out for drying of refractory concrete castings. The effects of permeability, heating rate and slab thickness on pore pressure and moisture removal rate are investigated for on-site drying of refractory concrete slabs. Different drying schedules are modelled and analyzed for kiln and on-site drying of refractory concrete castings. Simulation results from both one- and two-dimensional models are compared for kiln drying. New schedules are proposed to provide guidelines for both kiln and onsite drying operations.