{
 "id": "9.06c",
 "slug": "structure-steel-precast-envelope-site-equipment-cement-and-aggre",
 "url": "/parts/building-shell-site-and-construction/structure-steel-precast-envelope-site-equipment-cement-and-aggre",
 "name": "Cement and aggregates",
 "qualifiers": null,
 "layer": {
  "id": 9,
  "name": "Building shell, site & construction"
 },
 "parent_id": "9.06",
 "children": [],
 "summary": "Cement, ready-mix concrete, and aggregates used in foundations, slabs, and structural concrete.",
 "description_md": null,
 "ai_delta": null,
 "bottleneck_status": null,
 "scale_tiers": [],
 "density_modes": [],
 "scale_notes": null,
 "flow": [
  "shell"
 ],
 "companies": [
  {
   "company_id": "cemex",
   "name": "Cemex",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "CX",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "crh",
   "name": "CRH",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "CRH",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "eagle-materials",
   "name": "Eagle Materials",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "EXP",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "heidelberg",
   "name": "Heidelberg",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "HEI.DE",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "holcim",
   "name": "Holcim",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "HOLN.SW",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "knife-river",
   "name": "Knife River",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "KNF",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "martin-marietta",
   "name": "Martin Marietta",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "MLM",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "vulcan",
   "name": "Vulcan",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "public",
   "ticker": "VMC",
   "product_note": null,
   "note": null,
   "source_url": null
  },
  {
   "company_id": "summit-quikrete",
   "name": "Summit/Quikrete",
   "role": "manufacturer",
   "confidence": "inferred",
   "ownership_type": "private",
   "ticker": null,
   "product_note": null,
   "note": null,
   "source_url": null
  }
 ]
}