Mechanical, durability and hygrothermal properties of concrete produced using Portland cement-ceramic powder blends

摘要: Blended Portland cement-ceramic powder binder containing up to 60 % fine-ground waste ceramics from a brick factory is used in concrete mix design as an environmentally friendly alternative the commonly cement. The experimental analysis of basic physical characteristics, mechanical and fracture-mechanical properties, durability properties hygrothermal characteristics shows that optimal amount ceramic 20 mass blended decisive parameters respect are compressive strength, liquid water transport resistance de-icing salts, which not satisfactory for higher dosage blends. In case other studied, limits effective use higher: 40 fracture toughness specific energy, frost chemical MgCl2, NH4Cl, Na2SO4, HCl CO2. vapour diffusion coefficient found increase with increasing content, wet envelopes can be considered positive feature, but may have negative effect dry envelopes. thermal conductivity all mixes increases fast growing moisture content; differences 50 between water-saturated state values observed. This has taken into account energy-related calculations.