Cemfree is a totally cement-free alternative to conventional concrete and a ground-breaking addition to DB Group's portfolio.Cemfree, zero-cement structural concrete is a practical sustainable solution for today's construction industry.Whilst being the world's most used building material, modern concrete is not recognised as one of the most sustainable. Today's cement and concrete industries have a consistently impressive record for carbon reduction marshalled by a strong commitment to their environmental responsibilities.Cemfree activates 95% ground blast furnace slag (GGBS) producing an ultra-low carbon alternative to concrete mix designs that traditionally use Portland cement.