Akademik Veri Yönetim Sistemi
KSCE JOURNAL OF CIVIL ENGINEERING, cilt.22, sa.1, ss.12-23, 2018 (SCI-Expanded)
Many batching plants are reluctant in recycling the returned fresh concrete. However, leftover concrete may present great potential as it is always observed in truck-mixers. Therefore, viability of mechanical reclaimers was economically investigated considering the leftover concrete capacity. Toward this aim, availability of reclaimers in Turkey was revealed through a survey and the leftover concrete amount was measured. An economic selection algorithm for reclaimers was then introduced. Lastly, sensitivity and scenario analyses were performed for investment. In conclusion, most plants have poor views about recycling the leftover concrete although its percentage is 0.31%. With this amount, the annual leftover concrete amount in Turkey reaches a small plant's annual production. Given viability, four inputs can have huge influence on viability and should be paid attention. Finally, the most likely and the best scenarios present an optimistic view even for small plants while the worst scenario has negative results and should be supported by incentives.