As far back as 1970s, some developed countries, such as the USA, UK, Canada, came to research the synthetic fiber for building, latter achieved commercialized production. With widely blending fiber into concrete/cement mortar for several ten years, the all test reports show that the engineering qualities are improved in diversified building. First, the splitting resistance was improved and the crazing index was greatly reduced; the second, barrier property was improved, primarily control the water permeability; the third, the resistance to impact was increased by 3∼4 times, the fastness of concrete was greatly improved; the fourth, the toughness was obviously improved and the bending strength was greatly improved.

In the 1990s, Durafiber (US) came into our country and applied in key building engineering. Now, the fiber has been well received by the building industry of our country. But it is impossible to use it on a large scale because of its high price.

For realizing the new type building fiber made in our country, reducing greatly engineering costs and meeting the development demands in our building field, our company had developed S.F. Buildfiber successfully in 2002, and it has formed the capability of producing 5000T this kind of fiber a year. The products is made of PP/PE/PET and spun in particular process. After its surface coated with activation, it possesses the merits as follows: good acid and alkali resistance and resistance to ageing, high elastic modular, excellent dispersion quality, low density, and so on. The product does not join together, distributes evenly in concrete and has good affinity for cement and preserve moisture. Alll of the targets of the fiber reach the standard of the same kind product made in foreign countries.