It is important to durable of structure and reduce co2 emission through the greater use of substitute of cement. The use
of supplementry cementitious materials as partial replacement for the cement in concrete will play a significant role with respect
to the environmental control of greenhouse and global temperature reduction. The development of geopolymer concrete (GPC)
processing of geopolymer using black rice husk ash, GGBS in combination with sodium hydroxide and sodium silicate solutions,
offers a promising alternative to ordinary portland cement concrete.
