2014-4-6 News from CNBXFC
From shaoxing jiangnan branch co., LTD., Beijing ZhongFang fiber building technology co., LTD. Jointly completed "concrete reinforced polypropylene fiber and industrialization development of key application technology" project preparation of the three kinds of imitation of steel fiber can significantly improve the concrete performance of high-performance. The project research and development of the products is a new field of industrial textiles, application field is very wide. According to Beijing ZhongFang fiber building technology co., LTD., general manager of Shi Xiaoxing introduction, reinforced polypropylene fiber has become indispensable to large public buildings construction. In particular, the national stadium "bird's nest", Beijing Olympic park tennis center, CCTV headquarters building, Beijing metro line 4, the national conference center, the state general administration of sports training floor or national major projects such as Beijing can see the figure of reinforced pp fiber.
According to Shi Xiaoxing, using fiber reinforced concrete is not a new idea of contemporary, in the clay, lime, gypsum, cement and other cementitious materials to add fiber to improve its mechanical properties is a very old method. Chinese people already know more than three thousand years ago in the clay mixed with straw grass in order to increase the hardness and resistance to the ability of the rains washed out. Join MaGen in lime or gypsum application has more than two thousand years of history. Du pull companies in the United States made many contributions for China's large area USES polypropylene fibre.
After "concrete reinforced polypropylene fiber and industrialization development of key application technology" project after successful industrialization. Led by China textile academy of jiangnan branch, Beijing ZhongFang fiber building technology co., LTD. Of zhejiang shaoxing municipal science and technology "high-performance imitation steel fiber industrialization development and key technology of" science and technology development projects, also by the shaoxing municipal science and technology appraisal and acceptance of the organization. The product development and promotion of the use of toughening and crack resistance of concrete for construction has obvious effect, can significantly improve the toughness of concrete, to overcome the shortcomings of high strength and toughness of concrete is poor, so it is very beneficial for improving the durability of buildings.
由绍兴中纺院江南分院有限公司、北京中纺纤建科技有限公司联合完成的“混凝土增强聚丙烯纤维及关键应用技术的产业化开发”项目制备出了3种能够显著提高混凝土性能的高性能仿钢纤维。该项目产品的研发是产业用纺织品的一个全新领域，应用领域十分广泛。据北京中纺纤建科技有限公司总经理史小兴介绍，增强聚丙烯纤维已成为了大型公共建筑不可或缺的建材。特别是国家体育场“鸟巢”、北京奥林匹克公园网球中心、中央电视台总部大楼、北京地铁四号线、国家会议中心、国家体育总局训练楼等北京或国家重大工程均可看到增强聚丙烯纤维的身影。
据史小兴介绍，用纤维增强混凝土并非当代的新构想，在粘土、石灰、石膏、水泥等胶凝材料中加入纤维以改善其力学性能是一种很古老的方法。三千多年前的中国人就已经懂得在粘土中掺入禾秆草以增加其硬度及耐雨水冲刷的能力。在石灰或石膏中加入麻根的技术也有二千多年的的应用历史。美国杜拉公司对中国大面积采用聚丙烯纤维作出了不少贡献。
继“混凝土增强聚丙烯纤维及关键应用技术的产业化开发”项目顺利产业化后。由中国纺织科学研究院江南分院牵头，北京中纺纤建科技有限公司承担的浙江绍兴市科学技术局“高性能仿钢纤维及关键应用技术的产业化开发”科技开发项目，也通过了绍兴市科学技术局组织的鉴定和验收。该产品的开发和推广使用对建筑混凝土的增韧、抗裂有明显的作用，可以明显提高混凝土的韧性，克服混凝土强度高而韧性差的不足，对提高建筑物的耐久性十分有利。
