Concrete Surface Retarder

{
  "id": "MLC-T-ENV-006074",
  "term": "Concrete Surface Retarder",
  "field": "Environment",
  "definition": "Mixture of retarding ingredients such as extender pigments, primary pigments, resin, and solvent that interact chemically with the cement to prevent hardening on the surface where the retarder is applied, allowing the retarded mix of cement and sand at the surface to be washed away to create an exposed aggregate finish.",
  "references": [
    "40 CFR 59.401 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/concrete-surface-retarder/"
}