CAJ | 학술논문

为了研究BFRP筋与玄武岩纤维再生混凝土黏结性能，采用正交试验设计方法分析了再生混凝土强度等级、玄武岩纤维短切纱的体积掺合率以及长度对其影响。设计了27组试件，通过中心拉拔试验，得到相应的平均黏结强度值以及自由端滑移量。结果表明，纤维的掺量是影响BFRP筋与纤维再生混凝土拉拔试验自由端滑移的重要因素；同一掺量下，纤维长度为18mm的试件对应的极限黏结强度大于纤维长度为6mm、12mm的试件；玄武岩纤维短切纱体积掺量为0.2%时，对应的黏结性能最好；BFRP筋与纤维再生混凝土的黏结强度随纤维再生混凝土强度等级的提高而增大。
위료연구BFRP근여현무암섬유재생혼응토점결성능，채용정교시험설계방법분석료재생혼응토강도등급、현무암섬유단절사적체적참합솔이급장도대기영향。설계료27조시건，통과중심랍발시험，득도상응적평균점결강도치이급자유단활이량。결과표명，섬유적참량시영향BFRP근여섬유재생혼응토랍발시험자유단활이적중요인소；동일참량하，섬유장도위18mm적시건대응적겁한점결강도대우섬유장도위6mm、12mm적시건；현무암섬유단절사체적참량위0.2%시，대응적점결성능최호；BFRP근여섬유재생혼응토적점결강도수섬유재생혼응토강도등급적제고이증대。
In order to study the bonding performance of BFRP bar and basalt fiber recycled concrete, the orthogonal experiment was designed. The parameters were recycled concrete strength, the amount and length of chopped basalt fiber. 27 groups of specimens were designed within three in each of the group. The average bond strength and the free end slip were achieved by center pull-out test. The experimental results show that the fiber content is a significant influence factor of slip at free ending for pull-out test in BFRP reinforcement and fiber recycled concrete specimen. The ultimate bond strength of 18mm-length chopped fiber yarn specimens is greater than those of specimens with 6mm and 12mm fibers un-der the same fiber dosage. When the volume fraction of chopped basalt fiber yarn gets 0.2%, the corresponding bonding performance is the best. Bond strength of BFRP reinforcement and fiber recycled concrete increases with the improvement of fiber recycled concrete strength.