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|heading=2425 s2 - Biobased Building - Cob's water resistance | |heading=2425 s2 - Biobased Building - Cob's water resistance | ||
|parent=PR 00710 | |parent=PR 00710 | ||
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|description=Cob, a traditional earthen building material, is composed of clay combined with sand, water, and straw. The combination of durability, affordability, and thermal efficiency has made cob construction a popular choice that has been around for centuries. However, the main limiting factor of cob comes from its high water absorption capacity, as it causes the material to break down and erode, leading to reduced durability over time. The porous framework of cob material makes it easily damaged by exposure to rainwater, especially in damp or flood-prone locations. Given the growing emphasis on sustainable and biodegradable materials, research into natural biopolymer-based modifications, such as chitosan and alginate, presents a viable alternative for enhancing the durability and performance of cob in construction applications. | |description=Cob, a traditional earthen building material, is composed of clay combined with sand, water, and straw. The combination of durability, affordability, and thermal efficiency has made cob construction a popular choice that has been around for centuries. However, the main limiting factor of cob comes from its high water absorption capacity, as it causes the material to break down and erode, leading to reduced durability over time. The porous framework of cob material makes it easily damaged by exposure to rainwater, especially in damp or flood-prone locations. Given the growing emphasis on sustainable and biodegradable materials, research into natural biopolymer-based modifications, such as chitosan and alginate, presents a viable alternative for enhancing the durability and performance of cob in construction applications. | ||