| Popis: |
This paper investigated the effect of the addition of palm tree fiber-based lignin on thermal and mechanical properties of novel cementitious composites. Different mass proportions (2.5, 5, 10, and 20%) of lignin were mixed with cement, water, and sand so as to prepare composite samples. The thermal conductivity, compressive strength, water uptake, and drying kinetic of composites were investigated. The results reveal that the presence of lignin improves the composites’ thermal performance. Thermal measurements have proved that the loading of 10% of lignin in composites decreases the thermal conductivity from 1.38 W m−1 K−1 (for the reference mortar) to 0.38 W m−1 K−1. |
