{"actors":["Bridge-owner materials and structural engineering teams","Concrete producers and ready-mix quality-control staff","Cement and supplementary-binder suppliers","Design consultants","Batching and placement contractors","Testing laboratories and inspection agencies","Bridge maintenance crews","Transportation safety regulator or delegated design authority","Road users and nearby communities affected by construction or service restrictions"],"affected_objective":"Reduce clinker dependence in reinforced-concrete bridge decks while preserving structural capacity, constructability, reinforcement protection, inspectability, repair compatibility, and traceable design responsibility over the service life.","arm":"ORDINARY_DIVERSE_P2","authority_safety":{"authorized_first_step":"The bridge owner's materials engineer may conduct a read-only review of existing batch, curing, inspection, and core-test records and authorize laboratory-only preparation and testing of nonstructural specimens from approved constituent samples; no production specification, structural element, or accepted material may be changed.","decision_authority":"The bridge owner's chief engineer owns specification and demonstration gates, subject to independent structural and durability review, applicable code authority, and contractor refusal of work outside approved handling and safety procedures.","excluded_actions":["Changing an active structural-concrete specification during the first evidence step","Using laboratory specimens in a load-bearing element","Approving a mix from compressive strength alone","Blending untraceable or unqualified binder sources","Removing required reinforcement cover, curing, inspection, or acceptance controls to accommodate a candidate mix","Placing a candidate mix in an irreversible structural location before independent gate review"],"halt_rollback":"A later demonstration must stop batching or placement if fresh-state stability, temperature development, strength trajectory, cracking, passivation indicators, or test-to-model residuals cross predeclared boundaries. Unplaced material is quarantined, subsequent work returns to the last approved mix and curing procedure, and any placed element remains unloaded and isolated pending documented inspection, remediation, replacement, or acceptance by the chief engineer."},"baseline":"Use prescriptive binder limits and familiar constituent categories, qualify each proposed mix through project-level trial batches and specified-age strength and durability tests, then approve production when acceptance values are met, without explicitly testing whether increasing clinker substitution and changing source chemistry preserve the same hydration, pore-network, reinforcement-protection, and repair regime.","candidate_id":"continuity_rupture_regime_diagnosis_and_transition_design__engineering_design__ORDINARY_DIVERSE_P2","causal_chain":["Changing binder proportions and source chemistries alters coupled processes including reaction timing, heat release, pore refinement, moisture demand, shrinkage, carbonation, chloride transport, and reinforcement passivation.","Specified-age compressive strength can change smoothly while early-age constructability, local cracking, pore chemistry, or long-term protection crosses a composition-, temperature-, or curing-dependent threshold.","A typed evidence ledger across paste, specimen, batch, element, exposure zone, and service-age scales distinguishes gradual property drift from threshold chemistry, interacting cure deficiencies, source substitution, measurement change, and nominal relabeling of materially similar binders.","Mechanism-focused laboratory sequences and return-path tests identify whether restoring water content, curing, temperature, or binder proportion returns performance to the former regime or leaves irreversible cracking, altered reaction products, or lost passivation conditions.","A legacy map separates functions that must persist—load transfer, reinforcement protection, inspection records, repair compatibility, and accountable acceptance—from prescriptive ingredients or test conventions that may be translated or retired.","Comparison of bounded formulation probes, exposure-class staging, parallel specifications, hybrid component sequencing, and specification-family cutover selects a transition tempo matched to the diagnosed material dynamics rather than to substitution percentage alone.","Constituent traceability, witness specimens, hold points, independent review, quarantine rules, and restricted demonstration locations constrain learning before irreversible structural placement.","Production and service monitoring tests both the concrete's performance and the original regime diagnosis, allowing the authority to pause, narrow, reverse future placements, or redesign the specification path."],"cell_id":"continuity_rupture_regime_diagnosis_and_transition_design__engineering_design","consequence":"A false-continuity diagnosis could accept concrete whose familiar strength result conceals a different cracking, transport, or reinforcement-protection regime; a false-rupture diagnosis could unnecessarily preserve restrictive recipes, split specifications, discard compatible repair knowledge, or reject usable material pathways.","diversity_from_prior_proposals":"This opportunity concerns irreversible material formation and lifecycle durability in reinforced concrete, not electrical control, protection behavior, or inverter commissioning. Its affected problem is binder-regime qualification, its intervention governs material evidence and structural placement gates, and its causal path runs through hydration, pore structure, cracking, exposure, and reinforcement protection.","experiment_id":"eoa_inverse_innovation_exp13_second_slot_policy60_20260806","intervention":"Create a Concrete Binder Regime Qualification Case for one bridge-deck exposure class. It defines structural, construction, durability, repair, and record invariants; reconstructs constituent-to-service timelines at multiple resolutions; pairs continuity and rupture evidence; discriminates composition drift, curing interaction, chemical threshold, source shock, and measurement artifacts; and profiles irreversibility after hydration and cracking. It maps legacy tests, repair materials, records, skills, and obligations, then compares laboratory probes, exposure-class stages, bounded parallel specifications, hybrid component sequencing, and specification-family cutover. Each gate receives constituent traceability, acceptance evidence, a decision owner, placement limits, quarantine rules, witness specimens, fallback for future pours, and post-placement audit triggers.","mechanism_mapping":[{"counterfactual_removal":"Without resolution comparison, portfolio averages or specified-age strength could conceal early thermal peaks, local cracking, exposure-zone discontinuities, or short-lived fresh-state failures.","mechanism_slug":"multi_resolution_change_point_and_trend_comparison","role":"Compare reaction-hour, curing-day, test-age, batch, element, seasonal, exposure-zone, and service-age trajectories while annotating changes in materials, methods, and missing observations."},{"counterfactual_removal":"Without process tracing, similar strength or permeability results could be attributed interchangeably to binder chemistry, water control, curing, admixture interaction, temperature, cracking, or test-method variation.","mechanism_slug":"process_tracing_and_mechanism_discrimination","role":"Trace constituent properties through batching, reaction, heat and moisture history, pore development, cracking, transport, and reinforcement condition to distinguish rival causes."},{"counterfactual_removal":"Without paired claims, either familiar-recipe preference or substitution targets could dominate despite conflicting evidence about which functions actually persist.","mechanism_slug":"continuity_rupture_claim_matrix","role":"Pair each claim of retained constructability, capacity, durability, or repair compatibility with plausible break evidence, and each claimed rupture with evidence of functional continuity across sources and exposure conditions."},{"counterfactual_removal":"Without bounded threshold and return-path probes, a small recipe adjustment could be treated as reversible even though hydration, drying, cracking, or passivation loss cannot be undone by restoring the initial proportion.","mechanism_slug":"threshold_hysteresis_and_reversibility_probe","role":"Use laboratory factorial sequences and interrupted-curing specimens to estimate threshold ranges, interacting prerequisites, entry-versus-return behavior, and irreversible states."},{"counterfactual_removal":"Without rehearsal, production transfer could expose batching, finishing, curing, testing, or repair incompatibilities only after material has been placed in a structural element.","mechanism_slug":"parallel_transition_and_cutover_rehearsal","role":"Rehearse traceable trial batching, transport, placement, finishing, curing, sampling, acceptance, quarantine, and repair on nonstructural mock-ups before a structural gate."},{"counterfactual_removal":"Without an audit, an accepted placement could conceal source drift, localized cracking, lost record continuity, incompatible repair assumptions, or persistence of obsolete acceptance logic.","mechanism_slug":"post_transition_legacy_loss_and_regime_audit","role":"After each authorized demonstration, compare promised and observed invariants, unexpected continuities and breaks, production variability, inspection findings, repair compatibility, and remaining legacy dependencies."}],"nearest_rivals":["Conventional concrete mix qualification: verifies compliance and selected performance values but need not diagnose whether the governing material regime changes across scales or choose a transition tempo.","Performance-based specification: states desired outcomes but does not by itself reconstruct competing mechanisms, hysteresis, legacy obligations, or cutover safeguards.","Service-life modeling: projects deterioration from assumed mechanisms and inputs but may not test whether those assumptions remain continuous under new binder chemistry.","Trial placement program: tests constructability in a demonstration but may presume the candidate formulation and deployment sequence are already justified.","Materials passport: preserves constituent and provenance records but does not by itself classify continuity versus rupture or govern irreversible specification gates."],"negative_tests":{"intervention_falsifier":"On preregistered holdout mixtures, source lots, curing histories, and exposure conditions, the case's mechanism classifications fail to identify situations requiring different qualification or placement regimes, or the baseline specification and trial-batch process yields the same actionable gates, legacy treatments, and stop decisions from the same evidence.","problem_falsifier":"Across consistent records and bounded laboratory tests, constructability, structural, transport, cracking, and reinforcement-protection properties vary approximately smoothly over the contemplated compositions and source lots; conclusions remain stable across scales and exposure classes; return behavior shows no material path dependence; and existing qualification assumptions remain valid.","risks":["Laboratory curing and exposure may not represent field gradients or construction variability.","Accelerated durability tests may activate mechanisms unlike those governing service exposure.","Sparse or inconsistent historical constituent records may fabricate apparent boundaries.","A small specimen may not reproduce element-scale restraint, heat, moisture, or cracking.","Binder-source confidentiality could limit mechanism discrimination and traceability.","Parallel specifications could confuse batching, acceptance, repair, or design responsibility.","A candidate formulation may become irreversible immediately after mixing or placement.","Additional sampling and hold points could alter production timing and curing outcomes.","Decision boundaries could be influenced by parties with commercial exposure to acceptance or rejection."],"strongest_counterevidence":"Existing performance-based specifications, producer qualification systems, trial batching, durability testing, and structural acceptance controls may already distinguish relevant chemistry and construction regimes sufficiently that the proposed case changes documentation but not qualification or placement decisions."},"next_evidence_step":"For one bridge-deck exposure class, preregister candidate invariants, rival mechanisms, composition and curing boundaries, and falsification rules. Review records from twelve completed and traceable production batches spanning at least three binder-source or curing conditions, then prepare a bounded laboratory matrix using retained or newly approved constituent samples. Reserve four mixture-condition combinations as holdouts, prohibit structural placement, and obtain independent review of whether the resulting classifications would change any qualification, demonstration, or specification gate relative to the baseline workflow.","observable_state":"Constituent identity and lot, binder chemistry and fineness, mixture proportions, water-to-binder ratio, admixture sequence, ambient and concrete temperature, mixing and transport time, slump and air stability, setting, heat release, curing temperature and moisture, maturity, strength trajectory, elastic modulus, shrinkage, creep, cracking, resistivity, sorptivity, permeability, chloride transport, carbonation depth, freeze-thaw or scaling observations where applicable, pore-solution or passivation indicators, reinforcement condition, repair-material compatibility, batch variability, test-method version, specimen location, inspection records, and missing-data intervals.","prior_art_status":"UNSEARCHED","problem":"A bridge owner considering lower-clinker reinforced concrete cannot assume that substitution percentage is merely a smooth recipe parameter. Similar specified-age strength may coexist with composition- and curing-dependent changes in reaction timing, cracking, pore transport, reinforcement passivation, and repair compatibility. The decision is whether the relevant concrete remains within a familiar material regime, approaches a threshold, or reorganizes into a regime requiring different qualification and deployment controls.","proposal_index":2,"remaining_contrastive_claim":"The proposal remains contrastive only if scale- and mechanism-specific diagnosis changes the justified formulation boundary, evidence requirement, deployment tempo, legacy treatment, or structural placement gate compared with prescriptive qualification plus ordinary trial batching; an expanded materials dossier alone does not satisfy the claim.","revision_record":{"claim_changes":["Initial version makes no claim of novelty, prevalence, demand, or effect magnitude.","The central claim is limited to a falsifiable difference in qualification or transition decisions."],"conceptual_changes":["Initial domain transfer treats concrete substitution as a possible change in coupled material formation and protection mechanisms rather than as a percentage adjustment alone.","Initial design separates reversible pre-placement exploration from irreversible hydration, cracking, and structural placement."],"evidence_changes":["No external evidence or prior-art search was used.","Initial evidence plan includes holdout mixture-condition combinations, multiple observation scales, source and method annotations, rival mechanisms, and explicit problem and intervention falsifiers."],"operational_changes":["The first step is restricted to record review and nonstructural laboratory specimens.","Production specification changes and structural placement are excluded until independently reviewed gates are satisfied."],"parent_version":null,"progress_targets_addressed":["Independent engineering problem and causal path","Concrete actors, objective, observable state, and consequences","Archetype-complete diagnostic and transition intervention","Structural and mechanism mappings","Baseline, rivals, and contrastive claim","Authority, irreversible-step safeguards, falsifiers, and risks","Bounded closed-book evidence step"]},"schema_version":1,"structural_mapping":[{"archetype_element":"Change Object, Property, and Invariant Frame","domain_realization":"The object is the reinforced-concrete binder, production, curing, and exposure regime for one bridge-deck class; properties include constructability, structural response, cracking, transport, passivation, repair compatibility, and traceability; candidate invariants include load transfer, reinforcement protection, inspectability, and accountable acceptance."},{"archetype_element":"Multi-Scale Timeline and Boundary Set","domain_realization":"Align reaction hours, curing days, specified test ages, batch and source changes, placement seasons, crack onset, exposure periods, inspections, repairs, and service observations; compare substitution level, source lot, temperature, curing interruption, and specification date as alternative boundaries."},{"archetype_element":"Change-Mechanism and Regime Classifier","domain_realization":"Classify changes as smooth compositional drift, cumulative curing deficit, chemistry or transport threshold, source-lot shock, endogenous cracking-feedback reorganization, constituent replacement, test-method change, or relabeling of materially similar binders."},{"archetype_element":"Continuity–Rupture Evidence Ledger","domain_realization":"Record paired persistence and break evidence for each invariant with constituent provenance, specimen and element scale, exposure class, test method, uncertainty, missingness, production history, and inspector or worker account."},{"archetype_element":"Threshold, Path-Dependence, and Reversibility Profile","domain_realization":"Estimate threshold ranges for fresh-state stability, heat development, cracking, transport, and passivation; distinguish adjustable pre-placement states from irreversible hydration and damage; and identify curing, restraint, source chemistry, and repair dependencies that shape the return path."},{"archetype_element":"Affected-Party, Legacy, and Loss Map","domain_realization":"Assign preservation, translation, transformation, archiving, compensation, or retirement treatment to structural functions, reinforcement protection, familiar placement practices, test histories, repair systems, constituent records, workforce knowledge, warranties, and lifecycle obligations."},{"archetype_element":"Transition-Regime, Safeguard, and Cutover Plan","domain_realization":"Compare laboratory probes, exposure-class stages, bounded parallel specifications, hybrid component sequencing, and specification-family cutover; attach traceability, independent evidence, placement limits, hold points, quarantine, fallback for future pours, and sunset rules."},{"archetype_element":"Regime Monitor, Recovery, and Revision Loop","domain_realization":"Monitor production variability, reaction and curing indicators, cracking, transport proxies, reinforcement condition, inspection disagreement, repair compatibility, legacy dependence, and model residuals, with triggers to pause, narrow, revert future placements, remediate, or redesign."}],"title":"Concrete Binder Regime Qualification Case for Bridge-Deck Transitions","version":0}