摘要
生土材料作为最早使用,也是范围最广的建材,对其进行改性研究以满足当代居住要求一直是研究的热点。研究基于“百度指数”对生土建筑研究趋势进行解析,同时基于中国知网和Web of Science生土建材改性相关研究文献,采用Citespace对研究机构、作者、关键词方面进行可视化分析,此外,依据地区对改性材料、优化性能进行统计梳理。研究结果表明:北京、陕西为生土建筑关注度最高的2个地区,关注人群性别分布差别不大,研究机构以西安建筑科技大学、天津城建大学等高校院所为主,研究地区涉及10个省市地区。材料添加方面,石灰、水泥为最主要的改性添加材料,频率占比超过40%,粉煤灰、石膏、矿渣、麦秸等植物纤维次之,减水剂、黏结剂、缓凝剂等主要用于浇筑式生土改性研究,占比最少。性能优化方面,抗压性能、耐水性研究最多,抗压性能最高为天津地区采用水泥−膨胀剂−奈系减水剂−木质素磺酸钠的研究,强度可达40 MPa,耐水性最好为陕西地区磷石膏−粉煤灰−石灰改性的研究,软化系数可达0.95。浇筑式生土材料、生土材料热湿性能、生土材料建造及表现是现阶段研究的热点。在材料综合性能探究、可再生性评估、改性成本、材料肌理、试验标准等方面,仍需继续深入探讨和研究。
As the earliest and most widely used building material,the modification of raw earth materials to meet contemporary living requirements has been a hot topic of research.This study analyzed the research trends of raw earth construction based on“Baidu index”,and visualized the research institutions,authors,and keywords using Citespace based on the related research literature on raw earth building materials modification from China National Knowledge Infrastructure and Web of Science.In addition,according to the region,the modified materials and optimized performance were statistically sorted out.The results show that Beijing and Shaanxi Province are the two regions with the highest interest in raw earth construction,and there is little difference in the gender distribution of the interested groups.The research institutions are dominated by Xi'an University of Architecture and Technology,Tianjin Urban Construction University and other universities and institutes,with 10 provinces and cities involved in the research area.In terms of material addition,lime and cement are the most important modification addition materials,with a frequency percentage of more than 40%,fly ash,gypsum,slag,wheat straw and other plant fibers are second,and water reducing agents,binding agents and retarders are mainly used in the research of poured raw soil modification,with the least proportion.In terms of performance optimization,compressive performance and water resistance are the most researched,and the highest compressive performance is the study of cement-expanding agent-naive water reducing agent-sodium lignin sulfonate in Tianjin,with strength up to 40 MPa,and the best water resistance is the study of phosphogypsum-fly ash-lime modification in Shaanxi Province,with softening coefficient up to 0.95.Poured raw soil material,raw soil material thermal and wet performance,raw soil material construction and performance are hot spots of research at this stage.It is still necessary to continue to explore and study in depth in terms of comprehensive material performance exploration,renewable assessment,modification cost,material texture,and test standards.
作者
张福鹏
石磊
柳思勉
石佳祺
张莹
张津悦
ZHANG Fupeng;SHI Lei;LIU Simian;SHI Jiaqi;ZHANG Ying;ZHANG Jinyue(School of Architecture and Art,Central South University,Changsha 410083,China;Health Building Research Center,Central South University,Changsha 410083,China)
出处
《铁道科学与工程学报》
EI
CAS
CSCD
北大核心
2022年第10期2919-2929,共11页
Journal of Railway Science and Engineering
基金
国家自然科学基金资助项目(52078484)
教育部人文社科基金资助项目(20YJCZH105)
湖南省自然科学基金资助项目(2020JJ4720)
湖南省重点研发计划资助项目(2019SK2183)
中南大学研究生科研创新资助项目(2021XQLH027)。
