Integral sustainability of alkali pozzolan cement

This article explores an approach to assess the sustainability of a new cement called alkali pozzolan cement, currently under development. In doing so, the pronouns of the AQAL model are modified so as to differentiate between "collections of individuals" and "collectives of individuals." Subjective data were generated through questionnaires and interviews, while objective information was obtained from experimental and analytical methods. The uncertainty of subjective and objective information is addressed in two ways, first by incorporating different types of uncertainty-related measures (e.g., value ranges and fuzzy measures) into the two-dimensional tetra-quadrant framework. Second, a third axis, called the certain-uncertain axis, is introduced to the conventional integral framework, resulting in a three-dimensional octa-octant framework. This new framework is then used as an integral auditing tool for assessing cement.