Utilization of waste as a material that is useful again becomes a concern for every industry player. The researchers are indirectly invited to innovate in order to preserve the environment. The use of slag as a recycled material in pervious a concrete is one of the sustainable solutions for preserving the environment. The use of viscosity modifying admixture (VMA) is expected to provide good workability in eco-friendly concrete. In this study, the tests carried out on fresh concrete are the air content in the concrete and the weight volume, as well as hard concrete testing including compressive strength test and porosity test of concrete. Eco-friendly concrete uses slag with variations of 0%, 30%, 50% and 70% of the weight of coarse aggregate. In the result of volume weight test, there was a 30.8% increase in the level of 70% slag from 0% slag and air content of 47.7%. Concrete compressive strength test showed optimum results at 70% slag contain an increase of 271% from 0% slag specimens and void rate around 16.7%.