Influence of aggregate and supplementary cementitious materials on the properties of hydrated lime (CL90s) mortars
作者： S Pavía , M Aly , None
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摘要: Hydrated lime is a historic material currently used in conservation. It hardens slowly by carbonation slowing construction however, supplementary cementitious materials accelerate hardening enhancing strength. Hydrated-lime mortars with rice husk ash–RHA-; ground granulated blastfurnace slag–GGBS- and increasing amounts of two aggregates were studied. Increasing aggregate lowered strength as interfacial zones proliferate; it hygric properties raised water demand. Aggregate content/composition didn’t affect the high retention. For higher contents (90 days), limestone are c.20% stronger than silica while (1:1) sand 56% flexion. Additions increased little impact on properties. GGBS c.six times. RHA due to its great specific surface water-demand porosity. ruling hydrate production kinetics pozzolanic reaction considered partially responsible for mortar property variation.
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