Earth-Based Building Incorporating Sargassum muticum Seaweed: Mechanical and Hygrothermal Performances

Once the tide recedes and leaves a significant amount of stranded seaweed on coast, marine macroalgae pose serious threat to surrounding area. Through this work, we considered large-scale application in building construction. For first time studied impact incorporating Sargassum mitucum fiber replacement flax used for standard structural cob. Thus, cob specimens were elaborated analyzed evaluate their compressive hygrothermal performances. It was found that strength water vapor resistance factors decreased with algae content. Additionally, obtained results showed made muticum presented better thermal (insulation inertia) hygroscopic properties than those fiber. Indeed, straw by lead reduction conductivity 38% when compared 2.5% Consequently, numerical simulation energy needs buildings an algae-based flax-based This study can contribute global environmental economic issue, i.e., valorization brown large scale. worldwide knows largest sea sargassum extent measures over 8850 km2. huge mass brownish is expanding every year, which now covers area from Africa Caribbean. weighs more 20 million tons extends Gulf Mexico west coast Africa. We show algae, are as wastes, have ability improve mechanical performance cob-based material.