摘要
针对当前大量存在的城市建筑垃圾处理问题,该文利用经过加工处理的再生建筑垃圾骨料以及竹制品垃圾等材料,成功制备了竹纤维再生骨料生态混凝土。通过调整竹纤维的添加量,并采用正交试验及验证的方法系统分析竹纤维掺入量对混凝土力学性能和植被覆盖性能的影响。试验结果显示:竹纤维的掺入能够显著增强生态混凝土的韧性。尤其当竹纤维掺入量达到3.0 kg/m3以上时,对再生骨料生态混凝土的抗拉性能具有明显的增强效果。由于竹纤维能够在混凝土中形成空间网状结构,试验中混凝土的抗拉强度最高可达4.71 MPa。此外,采用优化后的配合比进行的混凝土植被覆盖性能试验结果表明:竹纤维再生骨料生态混凝土具有良好的植被覆盖性能。该研究成果为竹纤维再生骨料生态混凝土在工程应用中提供了可靠的试验和理论依据,为解决城市建筑垃圾处理问题,促进建筑材料的可持续和循环利用提供了一种有效的方案。
In response to the current common urban construction waste disposal issue,this study utilized processed recycled construction waste aggregate and bamboo waste materials to produce bamboo fiber-reinforced eco-concrete with recycled aggregate.By adjusting the dosage of bamboo fiber,the effects of the dosage of bamboo fiber on the mechanical and vegetative performance of the concrete were systematically analyzed by means of orthogonal tests and verification methods.The test results indicate that bamboo fiber enhances the toughness of eco-concrete significantly.Particularly,when the dosage of bamboo fiber exceeds 3.0 kg/m3,there is a significant enhancement in the tensile performance of the eco-concrete with recycled aggregate.Due to the spatial network structure formed by bamboo fiber within the concrete,the highest tensile strength of the concrete reaches 4.71 MPa in the experiment.Furthermore,the vegetative performance test of concrete is carried out with an optimized mix ratio,and the test results show that bamboo fiber-reinforced eco-concrete with recycled aggregate exhibits excellent vegetative performance.The study provides reliable experimental and theoretical evidence for the application of bamboo fiberreinforced eco-concrete with recycled aggregate in engineering.It also offers a viable solution to the urban construction waste disposal issue and promotes the sustainable utilization and recycling of construction materials.
作者
李涛
邓博凡
何茂林
刘婷
陈厚德
LI Tao;DENG Bofan;HE Maolin;LIU Ting;CHEN Houde(School of Municipal and Ecological Engineering,Shanghai Urban Construction Vocational College,Shanghai 201415,China;School of Naval Architecture and Maritime,Zhejiang Ocean University,Zhoushan,Zhejiang 316022,China;School of Civil Engineering,Southeast University,Nanjing,Jiangsu 211189,China;Zhejiang Runda Detection Technology Co.,Ltd.,Zhoushan,Zhejiang 316041,China)
出处
《中外公路》
2024年第6期114-123,共10页
Journal of China & Foreign Highway
基金
国家自然科学基金资助项目(编号:51879236)。
关键词
生态混凝土
再生骨料
竹纤维
植生性能
eco-concrete
recycled aggregate
bamboo fiber
vegetative performance
作者简介
李涛,男,博士,教授.E‑mail:litao@succ.edu.cn;通信作者:刘婷,女,博士,副教授.E‑mail:61264425@qq.com。
