Green Sense Concrete mixture proportioning service improves concrete performance while minimizing its environmental impact. The process uses supplementary cementitious materials and/or non-cementitious fillers with Master Builders admixtures to meet or exceed performance targets. The Eco-Efficiency Analysis measures concrete's economic and ecological impact based on toxicity potential, risk potential, raw material consumption, and land use. BASF Construction Chemicals. 800-628-9990.