{"closest_prior_art":[{"name":"BSI Flex 350 alternative-binder assessment framework","overlap":"Provides a structured framework for assessing lower-carbon alternative binders, including comprehensive performance assessment, application-specific verification, project testing, conformity testing, durability provisions, monitoring, and lower-risk uses for underperforming systems.","remaining_difference":"It does not explicitly classify continuity versus material-regime rupture across scales, test entry-versus-return paths or hysteresis, map inherited repair and record obligations, or use those diagnoses to choose among parallel specifications and cutover tempos.","source_ids":["SRC2"]},{"name":"Performance Engineered Concrete Mixtures under AASHTO PP 84 and the NCDOT implementation roadmap","overlap":"Uses existing records plus targeted testing to develop performance criteria, QA/QC protocols, pilot specifications, and durability measures such as surface resistivity, shrinkage, and early-age strength; the approach is expressly extensible to bridges.","remaining_difference":"Its documented purpose is performance specification and implementation, not preregistered discrimination among smooth drift, chemistry thresholds, curing interactions, source shocks, and measurement artifacts with legacy-dependent transition decisions.","source_ids":["SRC1"]},{"name":"PCA lower-carbon concrete protocol guidelines","overlap":"Calls for application-specific performance beyond strength, review of conventional-test assumptions for novel binders, separate validation data, nonstructural proof-of-concept use, increased quality control, prequalification, trial batches, mock-ups, demonstration placements, stakeholder responsibility, and attention to handling, finishing, curing, and source consistency.","remaining_difference":"It does not prescribe a multi-resolution continuity–rupture ledger, return-path experiments, formal irreversibility classification, or a controlled comparison showing whether those additions change owner qualification or placement gates.","source_ids":["SRC4"]},{"name":"NIST structure-processing-property measurement program for alternative binders","overlap":"Directly investigates how variable alternative-binder composition, processing, reaction kinetics, and structure produce different life-cycle performance and seeks mechanistic data and models to replace unguided trial-and-error formulation.","remaining_difference":"It is a measurement-science and mixture-design program, not a bridge-owner governance case coupling mechanism classification to traceability, repair compatibility, hold points, quarantine, deployment tempo, and accountable specification cutover.","source_ids":["SRC3"]}],"contrastive_claim_falsifier":"Using the same preregistered batch records, laboratory matrix, source lots, curing histories, exposure conditions, and holdouts, the proposed regime case fails to classify any condition that warrants a different formulation boundary, evidence requirement, demonstration sequence, legacy treatment, stop rule, or structural-placement gate from ordinary performance-based qualification and trial batching, or its classifications do not reproduce on the four reserved holdouts.","contrastive_claim_remaining":"For a defined bridge-deck exposure class, an explicit multi-scale mechanism and reversibility diagnosis changes at least one justified formulation boundary, evidence requirement, deployment tempo, legacy treatment, or structural-placement gate relative to prescriptive or performance-based qualification plus ordinary trial batching; producing a larger dossier without a changed decision does not satisfy the claim.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","gates":{"adequate_source_search":{"rationale":"The bounded search covered the named bridge-deck intervention, performance-engineered-mixture and alternative-binder terminology, a standards framework, industry qualification and demonstration practice, and combinations involving reaction kinetics, source variability, curing, cracking, transport, and performance gates. Four opened sources span four publishers and include government research, a standards-body code of practice, and professional guidance. This is adequate for a coarse screen, not an exhaustive prior-art or patent search.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"PASS"},"bounded_next_test":{"rationale":"Reviewing twelve traceable historical batches and testing approved constituents in a laboratory matrix with four reserved holdouts is finite and operationally plausible. Existing work demonstrates the feasibility of combining legacy data with targeted durability tests, while guidance supports prequalification and nonstructural trials before construction. The test should predeclare the baseline decision process and score only decision-changing classifications.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"},"distinct_testable_claim":{"rationale":"The remaining claim is not that detailed documentation is beneficial; it predicts a measurable difference in formulation boundaries, evidence demands, transition sequencing, legacy treatment, or placement gates. A same-evidence comparison against ordinary performance qualification, followed by blinded holdout evaluation, can falsify it.","source_ids":["SRC1","SRC2","SRC4"],"status":"PASS"},"no_obvious_safety_or_authority_stop":{"rationale":"The authorized step is limited to records and approved laboratory specimens, with no specification change or structural placement. Fresh alternative binders require established alkaline-material PPE and handling controls, but that is a manageable laboratory hazard rather than a stop. Structural use remains subject to the owner's chief engineer, independent review, applicable codes, and contractor safety procedures.","source_ids":["SRC2","SRC4"],"status":"PASS"},"supported_problem":{"rationale":"The problem is visible: NIST reports that alternative formulations and chemically variable materials can produce different, sometimes unacceptable, life-cycle performance and that relevant structure-processing-property relationships remain incomplete. NCDOT work adds durability measures beyond compressive strength, while PCA guidance says innovative materials may invalidate conventional test assumptions and require application-specific metrics, prequalification, higher QC, and trial demonstrations.","source_ids":["SRC1","SRC3","SRC4"],"status":"PASS"}},"prior_art_disposition":"ADJACENT_PRIOR_ART","problem_evidence":{"finding":"Public sources support the central concern that clinker-reducing or alternative binders cannot be treated solely as a smooth strength-equivalent substitution: chemistry, reaction kinetics, raw-material variability, curing and placement affect cracking, transport, durability, and construction performance, and conventional tests may embed assumptions specific to hydraulic clinker systems. Existing frameworks already address much of qualification, testing, monitoring, staging, and responsibility, but the retained sources do not show the proposal's full continuity–rupture, hysteresis, legacy, and transition-tempo case as an established integrated practice.","source_ids":["SRC1","SRC2","SRC3","SRC4"],"status":"SUPPORTED"},"research_id":"eoa_inverse_innovation_exp13_light_screen_20260806","schema_version":1,"screen_id":"E13P088","screen_survival":true,"search_lanes":{"component_combination":{"no_result_note":null,"queries":["concrete binder regime qualification threshold hysteresis passivation curing source variability bridge deck","concrete durability performance specification source variability curing threshold chloride carbonation reinforcement passivation research","site:nist.gov alternative binder concrete durability carbonation chloride passivation supplementary cementitious materials"],"source_ids":["SRC1","SRC3","SRC4"]},"direct_problem_and_intervention":{"no_result_note":null,"queries":["site:fhwa.dot.gov bridge deck low carbon concrete supplementary cementitious materials performance specification trial batches durability curing","site:dot.gov low carbon concrete bridge deck supplementary cementitious material qualification pilot project curing source variability","alternative cementitious materials qualification source change concrete performance specification mockup trial placement"],"source_ids":["SRC1","SRC4"]},"products_practices_and_standards":{"no_result_note":null,"queries":["performance engineered mixtures concrete bridge decks AASHTO PP 84 durability transport cracking","BSI Flex 350 alternative binder systems concrete performance based specification official","alternative binder systems lower carbon concrete trial batches mock-ups performance specification"],"source_ids":["SRC1","SRC2","SRC4"]},"synonyms_and_historical_terms":{"no_result_note":null,"queries":["alternative binder systems lower carbon concrete code of practice","performance engineered concrete mixtures sustainable concrete mix qualification","structure processing property relationships sustainable concrete binders hydration kinetics"],"source_ids":["SRC1","SRC2","SRC3"]}},"sources":[{"claims_supported":["AASHTO PP 84 performance-engineered mixtures combine prescriptive and performance provisions to improve durability and sustainability.","The approach can be extended from pavements to bridges.","NCDOT used existing data plus targeted testing to develop performance criteria, specifications, QA/QC protocols, and pilots involving resistivity, shrinkage, early strength, water-cementitious ratio, paste content, fly ash, and portland-limestone cement."],"publisher":"North Carolina Department of Transportation, archived by the U.S. Department of Transportation National Transportation Library","source_id":"SRC1","source_type":"PRIMARY_RESEARCH","title":"Durable and Sustainable Concrete Through Performance Engineered Concrete Mixtures","url":"https://rosap.ntl.bts.gov/view/dot/57045"},{"claims_supported":["BSI Flex 350 supplies a framework for assessing alternative-binder concrete as a lower-carbon substitute for Portland-cement concrete.","It includes recommended verification and project testing, performance properties, durability, monitoring, application-specific conformity, and project quality control.","It recommends lower-risk applications where performance is substantially below traditional concrete and identifies alkaline fresh-material handling hazards."],"publisher":"British Standards Institution","source_id":"SRC2","source_type":"OFFICIAL_STANDARD","title":"BSI Flex 350 v1.0:2023-10 — Alternative binder systems for lower carbon concrete: Code of Practice","url":"https://www.bsigroup.com/siteassets/pdf/en/insights-and-media/insights/brochures/alternative-binder-systems-for-lower-carbon-concrete-code-of-practice.pdf"},{"claims_supported":["Alternative formulations using industrial byproducts, natural pozzolans, limestone, and other variable materials can yield different and sometimes unacceptable life-cycle performance.","Concrete binder structure-processing-property relationships and chemical interaction measurements are incomplete, complicating responses to raw-material and specification changes.","NIST's program combines structural, compositional, and kinetic measurements to support guided sustainable-binder design."],"publisher":"National Institute of Standards and Technology","source_id":"SRC3","source_type":"OFFICIAL_GUIDANCE","title":"Chemical, Structural, and Kinetic Measurement Technologies for Cementitious Materials","url":"https://www.nist.gov/programs-projects/chemical-structural-and-kinetic-measurement-technologies-cementitious-materials"},{"claims_supported":["Lower-carbon concrete qualification should consider strength, durability, workability, placeability, finishability, cracking, stiffness, exposure, and other application-specific properties.","Conventional test assumptions may not transfer to novel materials; separate validation, nonstructural proof-of-concept use, and higher QC may be needed.","Prequalification, trial batches, mock-ups or demonstration placements, stakeholder risk assignment, and evaluation of handling, finishing and curing changes are recommended before construction."],"publisher":"Portland Cement Association","source_id":"SRC4","source_type":"TRADE_PROFESSIONAL","title":"Lower Carbon Concrete: Voluntary Guidelines for Developing a Protocol","url":"https://www.cement.org/wp-content/uploads/2024/11/PCA_Voluntary_Guidelines_10-31-24_v1_FINAL.pdf"}],"world_novelty_boundary":"This bounded four-source screen found adjacent standards, performance-engineered-mixture programs, measurement science, and lower-carbon qualification guidance, but no retained source expressed the complete bridge-deck continuity–rupture ledger, hysteresis/return-path testing, legacy-loss mapping, and diagnosis-driven transition-tempo system. That absence does not establish world novelty, patentability, market demand, expert acceptance, realized value, or absence of equivalent material in patents, paywalled standards, project specifications, proprietary producer systems, or unindexed practice."}