THE DESIGN OF NEW CEMENTITIOUS MATERIALS USING CALCINED ALLOPHANE

Abstract

In this study, cementitious materials using calcined allophane were investigated. The results showed that the main components of the paste with 30％ of calcined allophane substituted for alite were CH, low crystalline C-S-H and stratlingite, and that the compressive strength was equivalent to that of a single phase of alite or a paste with 30％ of calcined kaolinite substituted for alite. The compressive strength of the paste was found to be equivalent to that of a single phase of alite or alite with 30％ calcined kaolinite. In addition, in the pastes with an increase of 70％ substitution of calcined allophane, the alite reacted completely, stratlingite became the main component and the compressive strength tended to be higher than in the pastes with 30％ substitution of calcined allophane.