摘要
对废旧碳纤维进行机械处理回收,用其制备了一种环保型导电混凝土,并通过抗压强度、抗折强度、电热试验以及融冰融雪能力试验对其进行性能评价。结果表明:当再生碳纤维体积分数为3.0%时,导电混凝土的抗压强度与抗折强度均达到峰值,7、28 d抗压强度分别为33.72、42.57 MPa;7、28 d抗折强度分别为5.03、6.38 MPa;随着再生碳纤维体积分数的不断增加,导电混凝土的电热效率与融冰融雪能力快速提高,在模拟融冰融雪试验中,120 min后温度升高到1.9℃,温升速率达0.12K/min。
An environmentally friendly conductive concrete was prepared by recycling waste carbon fiber through mechanical treatment,the performance of the conductive concrete was evaluated by compressive strength,flexural strength,electric heat test and ice and snow melting ability test.The results show that when the volume fraction of regenerated carbon fiber is 3%,the compressive strength and flexural strength of the conductive concrete reach the peak,the 7 d and 28 d compressive strengths are 33.72 MPa and 42.57 MPa,respectively,the 7 d and 28 d flexural strengths are 5.03 MPa and 6.38 MPa,respectively.As the volume fraction of regenerated carbon fiber is increasing,the electrical and thermal efficiencies of the conductive concrete and its ability to melt ice and snow are rapidly improved.In the simulated ice and snow melting test,the temperature rises to 1.9℃after 120 min,and the temperature rise rate reaches 0.12 K/min.
作者
沙东
SHA Dong(Zhoukou Housing Security and Real Estate Industry Development Center,Zhoukou 466000,Henan,China)
出处
《合成纤维》
CAS
2025年第1期78-81,共4页
Synthetic Fiber in China
关键词
再生碳纤维
机场路面
导电混凝土
recycled carbon fiber
airport pavement
conductive concrete
