A new Federal Highway Administration Tech Brief cites benefits and drawbacks of fly ash, slag cement, silica fume and natural or alternative pozzolans for transportation structure-grade concrete. “Supplementary Cementitious Materials — Best Practices for Concrete Pavements” (FHWA-HIF-16-001) outlines how agencies overseeing road construction and maintenance confront increasing service demands on concrete structures, expectations for reduced environmental impact, plus lower initial and lifecycle costs.
Read MoreFHWA assesses SCM, natural pozzolans within best pavement practices
