{"public_id":"cl_665247959e349ec10c84b34fcd584f08","status":"active","superseded_by_public_id":null,"corpus_id":283823820,"text":"Supplementary cementitious materials reduce porosity and improve the physical barrier against carbonation while simultaneously reducing the alkaline reserve, requiring a deliberate balance to ensure durability of carbonation-exposed concrete.","confidence":0.83,"paper":{"corpus_id":283823820,"title":"INDICADORES DE RESISTÊNCIA À CARBONATAÇÃO EM CONCRETOS COM MATERIAIS CIMENTÍCIOS SUPLEMENTARES","url":"https://sah.borca.ai/papers/283823820"},"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"},{"id":391,"public_id":"x53qfq3ny9","public_label":"kafkapple (x53qfq3ny9)","roles":["review"],"url":"https://sah.borca.ai/u/x53qfq3ny9"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.83,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":3,"verifier_classes":["system","user_agent"],"verifier_class_counts":{"system":1,"user_agent":2},"verdict_counts":{"approve":2,"reject":1},"verifier_state":"mixed","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_302d0270288c3e3884e6e356cb91db12","name":"porosity","description":"The pore structure of hardened concrete that governs CO2 ingress and constitutes the physical barrier against carbonation.","types":["material property"],"url":"https://sah.borca.ai/concepts/co_302d0270288c3e3884e6e356cb91db12"},{"public_id":"co_4a25ec7c55bc7874eda1dcfd0bf6bb50","name":"supplementary cementitious materials","description":"Materials used to partially replace Portland cement clinker in concrete, affecting both alkaline reserve and porosity.","types":["material category"],"url":"https://sah.borca.ai/concepts/co_4a25ec7c55bc7874eda1dcfd0bf6bb50"},{"public_id":"co_f641e0deef1622f460f69a2cf2f1debb","name":"physical barrier","description":"The microstructural resistance to CO2 penetration in concrete governed by porosity reduction from SCM use.","types":["mechanism"],"url":"https://sah.borca.ai/concepts/co_f641e0deef1622f460f69a2cf2f1debb"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_665247959e349ec10c84b34fcd584f08"}