{"id":"W4410542488","doi":"10.1016/j.cemconres.2025.107928","title":"Effect of metakaolin and fly ash on the early hydration and pore structure of Portland cement","year":2025,"lang":"en","type":"article","venue":"Cement and Concrete Research","topic":"Concrete and Cement Materials Research","field":"Engineering","cited_by":31,"is_retracted":false,"has_abstract":true,"ca_institutions":"Optech (Canada)","funders":"","keywords":"Metakaolin; Portland cement; Fly ash; Materials science; Cement; Composite material","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":[0.0001172127,0.000242188,0.0001021205,0.000109459,0.00007229404,0.0001688138,0.00009078534,0.0001377561,0.0007592002],"category_scores_gemma":[0.000248991,0.0001174145,0.000133717,0.00006096052,0.0001694411,0.0001831667,0.0000973928,0.0002358719,0.00009092093],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.00009923143,"about_ca_system_score_gemma":0.0001227712,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0008061017,"about_ca_topic_score_gemma":0.002177316,"domain_scores_codex":[0.9999266,0.00001816924,0.000006314337,0.0000139343,0.00001884742,0.00001619382],"domain_scores_gemma":[0.9997979,0.00007407219,0.00005740419,0.00001048382,0.00002105008,0.00003905851],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.000139892,0.00001653942,0.0003099623,0.00002309296,0.000004901479,0.00002820168,0.00001568249,0.00007982513,0.998675,0.00001309831,0.00000484263,0.0006889233],"study_design_scores_gemma":[0.000003216392,0.0003342302,0.004071751,0.000002338349,0.00001076416,0.00004473802,0.00001525007,0.000332998,0.9948908,0.000005411244,0.0002846217,0.000003868016],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9994006,0.0001786078,0.0001673381,0.00000698639,0.000002862419,0.000004067259,0.00002165087,0.000008707948,0.0002092067],"genre_scores_gemma":[0.999105,0.0001298855,0.0003415227,0.000009450168,0.000001279644,0.000002560871,0.00002662934,0.000004896982,0.0003787976],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.0008061017,"threshold_uncertainty_score":0.002539814,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01699308704236834,"score_gpt":0.3014311819430056,"score_spread":0.2844380949006372,"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."}}