Application of biochar from coconut and wood waste to reduce shrinkage and improve physical properties of silica fume-cement mortar

High autogenous and drying shrinkage associated with the use of silica fume increases the likelihood of cracking under warm climatic conditions and limits its application as a supplementary cementitious material. This research investigates the influence of biochar, added as a partial replacement of silica fume and cement, on shrinkage, hydration, strength and permeability of cement mortar. Biochars were prepared from wood waste and coconut shell...