{"id":"W4414517278","doi":"10.1061/jmcee7.mteng-20853","title":"Investigating Deterioration Mechanisms of Outdoor Concrete Staircases Constructed at the Okanagan Campus of UBC","year":2025,"lang":"en","type":"article","venue":"Journal of Materials in Civil Engineering","topic":"Concrete Corrosion and Durability","field":"Engineering","cited_by":0,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"","keywords":"Reinforced concrete; Frost (temperature); Service life; Precipitation; Cold climate; Compressive strength; Frost heaving","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.0002538188,0.0003678252,0.0002956757,0.001354858,0.0009348548,0.0006322098,0.0003833238,0.0004615346,0.00050616],"category_scores_gemma":[0.000312668,0.0002588925,0.0001959828,0.0009704058,0.0005669238,0.0002984898,0.0003399121,0.0003544,0.0001807256],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.001774423,"about_ca_system_score_gemma":0.001355819,"about_ca_topic_candidate":true,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.1589051,"about_ca_topic_score_gemma":0.4700054,"domain_scores_codex":[0.9997265,0.00001572342,0.000009830042,0.00007275702,0.0001014842,0.00007376434],"domain_scores_gemma":[0.9995951,0.00002825301,0.00009359409,0.00002707128,0.0001954748,0.00006059104],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"observational","study_design_gemma":"observational","study_design_scores_codex":[0.0003832128,0.0001430571,0.6576326,0.0001499215,0.00005201666,0.0012207,0.003008513,0.002985226,0.3129097,0.0001412891,0.0001373241,0.02123643],"study_design_scores_gemma":[0.000002531268,0.0001943382,0.9687389,0.00001130423,0.00002952621,0.000209014,0.002047322,0.00207464,0.02602469,0.0000124277,0.000639721,0.00001567536],"study_design_candidate":"observational","study_design_consensus":"observational","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9995704,0.00002962557,0.00008498352,0.000001773506,4.781545e-7,0.00000764068,0.00003548233,0.000003958814,0.0002656068],"genre_scores_gemma":[0.9988225,0.0000492412,0.0003117356,0.000002089244,4.732035e-7,0.000005142318,0.00009068243,0.000002527014,0.0007154788],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.8410949,"threshold_uncertainty_score":0.3159603,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.007491590050891374,"score_gpt":0.2135849442955531,"score_spread":0.2060933542446617,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}