日本九州大学研究生院成功地开发出一种比钢筋坚固10～40倍,可以大大降低成本的碳素纤维建筑材料。用这种建筑材料建成的建筑物比用钢筋的寿命长1倍以上,水泥的使用量也可以减少,抗震性能强2～4倍。试验把48万根直径7mm 的碳素纤维合在一起,制成建筑材料,并测试它的耐拉伸强度,结果表明它比钢筋强约10倍。如果进一步在常温下用树脂加固,其耐拉伸强度可达到钢筋的40倍。据说这种新开发的增加强度的建筑材料的成本是以往同类材料的1/10以下,运输和加工更加省力。 Japan Kyushu University Graduate School successfully developed a 10 to 40 times stronger than steel, can greatly reduce the cost of carbon fiber building materials. Buildings constructed from this type of building material use more than one-fold longer life than steel bars, and the amount of cement used can also be reduced, providing a 2 to 4 times greater seismic performance. The test combined 480,000 carbon fibers of 7mm in diameter into a building material and tested its tensile strength, which showed it was about 10 times stronger than steel. If further reinforced with resin at room temperature, its tensile strength up to 40 times the steel. It is said that the newly developed cost of building materials with increased strength is less than 1/10 of the same kind of materials in the past and the transportation and processing are more labor-saving.