Alkali Activated Cements and Concretes
Introduction
1.1 Historical developments of alkali-activated
cements and concretes
The first use of alkali as a component of cementing material dates back to
1930, when Kuhl investigated the setting behaviour of mixtures of ground
slag powder and caustic potash solution. Chassevent measured reactivity
of slags using caustic potash and soda solution in 1937. Purdon (1940)
did the first extensive laboratory study on clinkerless cements consisting of
slag and caustic soda or slag and caustic alkalis produced by a base and
an alkaline salt in 1940. The important historic developments of alkaliactivated
cements are summarized in Table 1.1.
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