1、Continuous Basalt Filament,CBF (連續玄武巖纖維 )1outline1 .Concept and Principal Properties 2.Researches at home and abroad3. Application to construction4. Existing problems23ConceptRaw materials:natural eruptive rocks.Manufacture: by heating the crushed rocks to a temperature of about 14501500 , then stre

2、tching to continuous filament with the spinneret plate.4Principal PropertiesExtraodinary good heat resistance: working temperture ranging from -269700 .80% of the initial strength under the temperature of 600 .5Excellent tensile strength: 38004800MPa,higher than other high technological fibres:carbo

3、n fiber、 steel fibre、 aramid fiber、glass fibre.6CBFs principal properties compared with other fibresType of fibreDensity/gcm-3Tensile strength/MPaModulus of elasticity/GPaPercentage elongation after fracture/%maximum operating temperature/CBF2.803000484079.393.13.1650E-glass fibre2.543100380072.575.

4、54.7380S-glass fibre2.542.574020465083865.3300Carbon fibre1.78350060002306001.52.0500Aramid fiber1.4529003400701402.83.6250High-Tech Fibre&Application.Vol.30No.6Dec.20057Principal PropertiesProminent Chemical Stability: due to the constituents ，KO,MeO and TiO,which strongly enhance the ability of ch

5、emical corrosion and water resistance. 8不同介質中煮沸3h后質量損失率 %Primary properties of Continuous Basalt Filament ,CUI Yi-hua . Journal of Textile Research,Vol.26,No.5,Oct,2005 9 Compatible with Portland Cement naturally: Replace steel for concrete structure; Have great potential use value in construction a

6、reas.10Research at homeIn 2002, China formally listed the research of continuous basalt fibres in the national 863 plan.0n Dec,19,2003,GBF(橫店集團上海俄金玄武巖纖維有限公司)was founded mainly for the research and development of CBF. Now it has become the leading company in China in the field.11New achievementsfirep

7、rotection suits and fire resisting curtains are made from CBF in 2011, byFuKuang Group(阜礦集團),Liaoning province.Used in mashgas pipeline,reducing risk.CBF fire resisting panel:12Research at abroadBasal Fibre Association,BAF was founded in Texas,America,and greatly stimulated the research and developm

8、ent of CBF131415 Ukraine制造連續玄武巖纖維及絕緣材料生產聯合體的流水線16Application prospectsCBF has broad prospects in construction areas due to its high cost performance.It is said that it will bring a revolution to the construction materials.17In the areas of reinforced hconcrete : Good alkali resistance,high tensile s

9、trength. Enhance the railroad ties of cement with CBF,and solve the problem of stability, especially in the Qinghai-Tibet plateau .18In the areas of building repair ,reinforcement and update : Unique advantages:Non-conducting, Good performance to price ratio, High shear strength, thermal expansion c

10、oefficient in accordance with concreteReinforce bridges, tunnels,and damsRepair beams ,columns, plates,and walls19In road construction fields: Main advantanes:The compatibility with asphalt mixture is strong, High shear strength, Good thermal stability, No long-term creep Used in Bridge deck, Munici

11、pal Roads, Airport pavement.20Existing problem Because CBF is a new king of developing high technological material,there are now few countries (Ukraine, Russia, the United States, Canada, China)and few manufacture plants can produce it. 21The yearly production is limited and it cannot meet the needs

12、.Also,it remains to be fully exploited.22The constituents of Basalt is fluctuant.So the properties of CBF is fluctuant,too.It will cause restrict on the use of CBF in high-end field.23The price of gas fuel is relatively high in China, which is not good to reduce the cost of production. Solution:exploring new technology ,and new