Vegetal Fiber Additives in Mortars: Experimental Characterization of Thermal and Acoustic Properties

This paper investigates the influence of adding vegetal fibers on thermal and acoustic performance based natural hydraulic lime. Mortar samples with 10% weight were fabricated water to obtain easily workable mortars good consistency; their was compared mortar without fibers. The different types (rice husk, spelt bran, Khorasan (turanicum) wheat chaff) size (as-found ground form). Thermal measured Small Hot Box experimental apparatus. conductivity reduced in 1–11% range (with chaff rice husk); no significant reduction found spelled bran mixture. When ground, characterized by both absorption performance; a 6–22% ? achieved (? = 0.64 W/mK) husks 0.53 W/mK), whereas had highest sound average index (0.38). However, addition insulation properties due low densities. limited for (transmission loss value only 2 dB lower than reference).