Optimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead waste

This study analyses how a Mg-Al-Hydrotalcite with carbonate in the interlayer influences hydration of mortar allowing management lead waste (solid or liquid) cement-based material. First, compatibility hydrotalcite cementitious matrix was studied through heat hydration, workability, consistency, compressive strength and mineralogical phase formation. The changes produced by incorporation were not drastic cement verified. Lead added oxide nitrate form to without same properties evaluated, including leaching test. delayed this effect being increased hydrotalcite, which happened first instants hydration. addition counteracted negative values. interaction between favoured formation plumbites under pH conditions Consequently, would seem be superficial. decreased values included “Non-Hazardous” limit environmental classification, very close “Inert”. All mortars two mixing procedures establish differences. When included, higher second procedure showed better behaviour procedure. research expands possibilities solid liquid contaminated using matrices.