论文部分内容阅读
国内外将海砂作为建设用砂应用情况简介海砂净化研究并规模化生产和使用源于国外,如英国、日本、荷兰等为代表的30多个沿海国家于20世纪初中期就已经开始利用近海海砂资源,特别是20世纪80年代以来,各国陆地建设用的砂源减少,加上保护环境的压力,迫使各国重新认识近海海砂资源的潜力,海砂已成为目前仅次于海洋石油天然气的正在开发的第二大海洋矿产。台湾于1986年开始陆续使用经简单净化或未净化的
Introduction of sea sand as construction sand at home and abroad Brief introduction of sea sand purification research and large-scale production and use More than 30 coastal countries such as Britain, Japan and the Netherlands, which originated from abroad, have started to use the middle and early 20th century Offshore sea sand resources, especially since the 1980s, the reduction of sand resources for land use in various countries and the pressure to protect the environment have forced all countries to re-understand the potential of offshore sea sand resources. Sea sand has now become the second-largest offshore oil producer after offshore oil The second largest marine mineral under development for gas. Taiwan began to use the simple purification or unpurified in 1986