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中国建筑科学研究院于1981年1月6日至15日在北京市召开陶粒及天然轻骨料国家标准编制工作会议。会上,各编制单位交流了自1980年1月以来,所开展的轻骨料筒压强度、有害物质、颗粒组成等科研项目的成果;对各地区调查研究以及各参加厂抽样检验的情况;整理分析了所取得的技术资料,并与国外有关标准资料进行比较。同时,对主编单位结构所提出的“粉煤灰陶粒”、“粘土陶粒”、“页岩陶粒”、“天然轻
The China Academy of Building Research held a working meeting on the preparation of national standards for ceramics and natural lightweight aggregate in Beijing from January 6th to 15th, 1981. At the meeting, the compiling units exchanged the results of scientific research projects such as light-strength drum compressive strength, hazardous substances, and grain composition that had been carried out since January 1980, and surveys and investigations of various regions and sampling inspections by participating factories; The technical data obtained were collated and analyzed, and compared with foreign standard data. At the same time, the “fly ash ceramsite”, “clay ceramsite”, “shale ceramsite”, "natural light