Characterization of tunnel excavated earth-based mortars for rammed earth repair

The aim of this work is to study the possibility reuse tunnel excavated earth in order elaborate earth-based mortar for rammed reparation. mortars were compared with raw based-mortars, largely used practice. cement was as stabilizer and hemp fibers diminish cracking due shrinkage. mechanical, thermal hydric properties characterized after 28 days. maintained hydrothermal chamber at controlled conditions, 20 ± 2 °C 50 5 HR. obtained results show that mechanical performances increase by ratio. While, content affects negatively conductivity mortars. Whereas, improved addition natural fiber. higher good