In this work porous clay refractory was prepared from Iraqi kaolin clay; by addition of water or
different type of paper pulp; the paper pulp different in (paper : water), the sample formed by mold method,
then dried at room temperature for (72) hr at last fired at (1200)oC with soaking time for (2) hr. Properties
(linear shrinkage, loss in mass, apparent porosity, water absorption ratio, apparent density, thermal
conductivity, thermal shook resistance and diametrical strength) were studied.