These groups of castables are
composed of hard aggregates and a binding matrix which tightly
joins aggregates and preserves the integrity of structure.
According to the type of binding system, these are categorized
as hydraulically bound and chemically bound.
In these castables, binding
system is based on hydration of high alumina cement, which in
company with fine grade fillers and well proportionately graded
aggregates, gives a high compressive strength.
castables binding is based on a neutralization process of
chemical bonds after addition of some suitable liquid to the
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