Abstract
This paper presents the effect of expanded polystyrene (EPS) aggregate on the strength and durability of self-compacted lightweight concrete (SCLC). SCLC mixes with different water/binder ratios and EPS contents (10, 15, 22.5 and 30 % by volume) were cured in two different curing regimes. Durability properties were investigated by water absorption, electrical resistivity, air permeability and chloride penetration profiles. Results showed that EPS mixes cured in salt/wetting regime mostly show higher levels of compressive strength. SCLC with EPS mostly has a low absorption categorized as “good” concrete quality. After 90 days, mixtures with density higher than 2,000 kg/m3 have low corrosion risk. In these mixtures, corrosion did not really pass the threshold of activity at 2.5 cm covering depth. In addition, air exclusion ratio was observed to be lower for EPS mixes with lower W/B ratio.
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