| Protocol-Aware Uncertainty Synthesis for Sustainable Cementitious Material Selection in Wastewater Infrastructure |
| کد مقاله : 1591-IWWA |
| نویسندگان |
|
زهرا پوررحیم نجفآبادی *، ریحانه پوررحیم نجف آبادی، الهام ناظمی مرکز تحقیقات افق های نوین در معماری و شهرسازی |
| چکیده مقاله |
| Material selection for wastewater infrastructure requires balancing strength, carbon emissions, cost, and durability under microbially induced corrosion, while durability evidence is generated by heterogeneous protocols and endpoints. This study developed a protocol-aware, uncertainty-explicit multi-criteria framework for PCC/OPC, geopolymer concrete (GPC), and ultra-high-performance concrete (UHPC). Raw Martinez-Miller data were harmonized using 28-day cylinder strength, yielding 475 PCC and 346 GPC records; median strengths were 36.8 and 37.8 MPa, respectively. Median GWP was approximately 289.4 and 223.2 kg CO2-eq/m3, and the median GPC/PCC material-cost ratio was 1.98. UHPC evidence comprised 154 MPa strength, 585688 kg CO2-eq/m3 GWP, and a same-study UHPC/NSC material-cost ratio of 4.95-5.34. Durability was represented through protocol-specific partial-order evidence rather than pooling incompatible physical endpoints. In 50,000 Monte Carlo iterations, first-rank acceptability was 42.79% for UHPC, 41.49% for PCC/OPC, and 15.72% for GPC. The near-tie between UHPC and PCC/OPC and scenario-dependent rank reversals demonstrate that no material family is preference-invariant: durability/strength emphasis favors UHPC, carbon emphasis favors GPC, and cost emphasis favors PCC/OPC. |
| کلیدواژه ها |
| wastewater infrastructure, MICC, geopolymer concrete, UHPC, uncertainty, multi-criteria decision analysis |
| وضعیت: پذیرفته شده برای ارسال فایل های ارائه پوستر |
