Microstructure of Hydrated Lime and Sand for Mortars, ” Masonry: Opportunities

This paper presents the investigation and characterization of Type S hydrated lime in aged solutions with sand and with subsequent addition of Portland cement. The plastic mortar workability and flow as prescribed by ASTM Standards C207 and C270, the rheological properties, the microstructure of the lime-sand slurries, and the hardened microstructure and properties as prescribed by ASTM Standard C109/C 109Mhave been analyzed to identify the optimal relation of lime hydration product form to sand and the implications to selection of materials or manufacture of a hydrated lime type for constructability and performance