TY - JOUR
T1 - Technical Viability and Life Cycle Assessment to Excavated Soil and CDW Blends for Hydraulic Applications
AU - Chica, Lina
AU - Villada, Juan Pablo
AU - Arcila, Johanna Mejía
AU - Restrepo, José William
N1 - Funding Information:
The authors want to acknowledge the funding support from Universidad de Medellin.
Publisher Copyright:
© 2023, Korean Society of Civil Engineers.
PY - 2023
Y1 - 2023
N2 - The largest proportion of solid waste comes from the construction industry. Construction and demolition waste (CDW) include among others, petrous waste like those derived from concretes and masonry, ceramic rips, and excavation products, being the latter, the ones with the largest generation percentage. Petrous waste reuse is well studied in literature, however, the reincorporation of excavated soils with poorly geotechnical features represents a major challenge than traditional type of reuse. In this paper, experimental results are shown for the design of compacted blends composed of excavated soils, CDW and cement, which are selected as the main supply of prefabricated hydraulic elements. Technical feasibility was established from Proctor test and unconfined compressive strength results, both as a criterion for workability and maximum densification and use of waste. A life cycle assessment (LCA) was performed for the compacted blends with the best technical feasibility results to evaluate its environmental impact. The results showed that compacted blends with at least 90% of waste meet the technical criteria for being reused.
AB - The largest proportion of solid waste comes from the construction industry. Construction and demolition waste (CDW) include among others, petrous waste like those derived from concretes and masonry, ceramic rips, and excavation products, being the latter, the ones with the largest generation percentage. Petrous waste reuse is well studied in literature, however, the reincorporation of excavated soils with poorly geotechnical features represents a major challenge than traditional type of reuse. In this paper, experimental results are shown for the design of compacted blends composed of excavated soils, CDW and cement, which are selected as the main supply of prefabricated hydraulic elements. Technical feasibility was established from Proctor test and unconfined compressive strength results, both as a criterion for workability and maximum densification and use of waste. A life cycle assessment (LCA) was performed for the compacted blends with the best technical feasibility results to evaluate its environmental impact. The results showed that compacted blends with at least 90% of waste meet the technical criteria for being reused.
KW - Construction and demolition waste
KW - Excavation soils reuse
KW - Life cycle assessment
KW - Soil cement blends
KW - Sustainability
UR - http://www.scopus.com/inward/record.url?scp=85149032070&partnerID=8YFLogxK
U2 - 10.1007/s12205-023-1632-5
DO - 10.1007/s12205-023-1632-5
M3 - Artículo
AN - SCOPUS:85149032070
SN - 1226-7988
VL - 27
SP - 1412
EP - 1422
JO - KSCE Journal of Civil Engineering
JF - KSCE Journal of Civil Engineering
IS - 4
ER -
