The problems of traditional concrete such as brittleness,poor toughness and short service life of concrete engineering under acid rain or marine environment need to be solved urgently.Hydrated calcium silicate(C-S-H)i...The problems of traditional concrete such as brittleness,poor toughness and short service life of concrete engineering under acid rain or marine environment need to be solved urgently.Hydrated calcium silicate(C-S-H)is a key component to improve the mechanical properties and durability of concrete.However,the traditional method of concrete material design based on empirical models or comparative tests has become a bottleneck restricting the sustainable development of concrete.The synthesis method,molecular structure and properties of C-S-H were systematically described in this paper;The interface structure and interaction of graphene oxide/calcium silicate hydrate(C-S-H/GO)were discussed.On this basis,the saturated and unsaturated transport characteristics of ions and water molecules in C-S-H/GO nanochannels under the environment of ocean and acid rain were introduced.The contents of this review provide the basis for improving the multi-scale transmission theory and microstructure design of concrete.It has important guiding significance for analyzing and improving the service life of concrete in complex environment.展开更多
以Web of Science核心集中的SCI-E、SSCI、CPCI-S及中国知网CNKI为数据源,以2000—2017年所发表的有关酸雨研究的2 333篇SCI及2 107篇中文文献为分析对象,分析了相关文献的时空分布。使用可视化软件Cite Space V生成了期刊共被引图谱、...以Web of Science核心集中的SCI-E、SSCI、CPCI-S及中国知网CNKI为数据源,以2000—2017年所发表的有关酸雨研究的2 333篇SCI及2 107篇中文文献为分析对象,分析了相关文献的时空分布。使用可视化软件Cite Space V生成了期刊共被引图谱、作者合作图谱、作者共被引图谱、关键词共现图谱及参考文献共被引图谱,分析了该研究领域的研究现状及新兴趋式。国际上,该领域近4年来的研究热度逐年上升,高产期刊为Atmospheric Environment,高被引期刊为Wa-ter,Air,&Soil Pollution,中国和美国是从事酸雨研究的主要国家,该领域的高产机构是中国科学院。同时还介绍了从事酸雨研究的主要科研团队和有影响力的个人。由关键词共现分析和参考文献共被引分析可知,中国的酸雨问题是目前的研究热点,酸雨对植物光合作用的影响和中国南方的酸雨问题是当前研究出现的新兴趋式。国内方面,我国于2010年左右对酸雨研究的热度达到顶峰,主要的研究机构是江南大学、南京大学及浙江大学。此外,也介绍了国内从事酸雨研究的主要个人及科研团队。展开更多
基金This work was supported by a Doctoral program of Zhejiang University of science and technology(F701104L08)。
文摘The problems of traditional concrete such as brittleness,poor toughness and short service life of concrete engineering under acid rain or marine environment need to be solved urgently.Hydrated calcium silicate(C-S-H)is a key component to improve the mechanical properties and durability of concrete.However,the traditional method of concrete material design based on empirical models or comparative tests has become a bottleneck restricting the sustainable development of concrete.The synthesis method,molecular structure and properties of C-S-H were systematically described in this paper;The interface structure and interaction of graphene oxide/calcium silicate hydrate(C-S-H/GO)were discussed.On this basis,the saturated and unsaturated transport characteristics of ions and water molecules in C-S-H/GO nanochannels under the environment of ocean and acid rain were introduced.The contents of this review provide the basis for improving the multi-scale transmission theory and microstructure design of concrete.It has important guiding significance for analyzing and improving the service life of concrete in complex environment.
文摘以Web of Science核心集中的SCI-E、SSCI、CPCI-S及中国知网CNKI为数据源,以2000—2017年所发表的有关酸雨研究的2 333篇SCI及2 107篇中文文献为分析对象,分析了相关文献的时空分布。使用可视化软件Cite Space V生成了期刊共被引图谱、作者合作图谱、作者共被引图谱、关键词共现图谱及参考文献共被引图谱,分析了该研究领域的研究现状及新兴趋式。国际上,该领域近4年来的研究热度逐年上升,高产期刊为Atmospheric Environment,高被引期刊为Wa-ter,Air,&Soil Pollution,中国和美国是从事酸雨研究的主要国家,该领域的高产机构是中国科学院。同时还介绍了从事酸雨研究的主要科研团队和有影响力的个人。由关键词共现分析和参考文献共被引分析可知,中国的酸雨问题是目前的研究热点,酸雨对植物光合作用的影响和中国南方的酸雨问题是当前研究出现的新兴趋式。国内方面,我国于2010年左右对酸雨研究的热度达到顶峰,主要的研究机构是江南大学、南京大学及浙江大学。此外,也介绍了国内从事酸雨研究的主要个人及科研团队。
