芬兰开发了一种含有经过化学处理的天然纤维,例如木屑、稻壳、花生壳和废纸等的混凝土。这种混凝土可用于低造价建筑的标准预制板体系。芬兰的 Acofec Oy 公司及其美国的子公司向全世界和北美市场提供成批生产这些板 Finland has developed a kind of concrete that contains chemically treated natural fibers such as sawdust, rice husks, peanut shells and waste paper. This type of concrete can be used for standard prefabricated systems in low-cost buildings. Acofec Oy of Finland and its subsidiaries in the United States provide mass production of these boards to the worldwide and North American markets