Towards circular cement: Evaluation of the reactivity of cementitious binder retrieved from recycled cement stone

The changing climate and the need for a new purpose for End-of-Life concrete increased the importance and interest of concrete recycling. To decrease the environmental footprint of concrete, in which cement has the highest contribution, it would be of great importance to be able to recycle cement, which would positively affect the environment....

Drying and Rehydration of Calcium Alginate Gels

In this paper, we study the rehydration properties of air-dried calcium alginate gel beads. Rehydration is shown to depend on alginate source (i.e. mannuronic to guluronic acid ratio) and the salt concentration in the rehydration medium. Rehydration curves are described adequately by the empirical Weibull equation. Wide-angle X-ray diffraction...