Green ECC Strategy Map

Status

Purpose: readable strategy map for sustainable / Green ECC routes in the Atlas.
Primary synthesis node: 04_material_systems/green_ecc.md.
Sustainable extension evidence: 07_visualization/sustainable_ecc_extension_claim_evidence_matrix.csv.
Original PDFs for sustainable extension: pending user supply.

Strategy family overview

Strategy family	Material lever	Performance check	Representative evidence
High-volume fly ash / SCM	Replace clinker with fly ash, slag, limestone powder, POFA, RCP, silica fume	Direct tension, crack width, matrix toughness, durability	Kim 2007; Zhou 2010; Altwair 2012; Yu 2019
Alkali-activated slag	Use GGBS with alkaline activation as cementless binder	Rheology, activator chemistry, interface, direct tensile ductility	Lee 2012; Choi 2014/2015/2020; Long 2019
Geopolymer EGC	Use fly ash, slag, metakaolin geopolymers	PSH, curing, activator, fiber pullout, crack control	Ohno 2014; Nematollahi 2015/2017; Nguyen 2021
Recycled fibers / PET / selvage	Replace virgin fibers with recycled PET, tire polymer, textile selvage	Fiber strength, dispersion, pullout, crack width	Choi 2012; Yu 2018; Choi 2022; Hwang 2025
Rubberized / lightweight / recycled aggregate	Use crumb rubber, lightweight inclusions, recycled powder/aggregate	Matrix toughness, density, ductility, durability	Luong 2021/2023/2025; Nematollahi 2017
Seawater sea-sand / marine resources	Use seawater, sea-sand, coral sand, marine raw materials	Hydration, ITZ, chloride context, reinforcement compatibility	Huang 2020/2021; Lao 2022; Fan 2025
LC3 / low-carbon binders	Use limestone calcined clay, eco-efficient cement, Mg binders	Clinker reduction with retained ECC performance	Scrivener 2016; Ahmed 2024; Song 2025; Meng 2023

System logic

Green material substitution
  -> changes binder chemistry / matrix toughness / fiber interface / rheology
  -> must re-check PSH and crack-width control
  -> if performance is retained, sustainability gains become structurally meaningful

Lee lab placement

AAS and EGC branch
  -> Lee 2012 feasibility
  -> PE-AAS and fiber bridging studies
  -> fly ash / slag EGC ultra-ductility
  -> recycled selvage and rubberized AAS composites
  -> self-healing and durability recovery

Evidence files

04_material_systems/green_ecc.md
07_visualization/sustainable_ecc_extension_claim_evidence_matrix.csv
00_sources/sustainable_ecc_extension/metadata/sustainable_ecc_extension_source_index.csv
06_lab_position/our_lab_position_map.md
06_lab_position/alkali_activated_ultra_ductile_position.md
06_lab_position/recycled_selvage_fiber_position.md
06_lab_position/self_healing_position.md

Immediate next tasks

Match original PDFs when supplied for sustainable extension.
Verify numeric/page claims against PDFs.
Split strategy families into individual synthesis cards only when needed.
Use this map for proposal/manuscript background sections.