“球形闭孔膨胀珍珠岩”在信阳研制成功。河南省科委组织和主持的成果鉴定会于 1 999年1 1月 6日在信阳举行。中国建筑材料科学研究院教授、博士沈荣熹、国家非金属矿产资源综合利用工程技术中心研究员张克仁、地矿部郑州矿产综合利用研究所研究员李英堂、中国建筑材料科学研究 “Spherical closed-cell expanded perlite” was successfully developed in Xinyang. The result appraisal meeting organized and hosted by Henan Science and Technology Commission was held in Xinyang on January 6th, 1999. Professor Shen Rongji, Professor, Ph.D., China Institute of Building Materials Science; Zhang Keren, Research Fellow, National Non-metallic Mineral Resources Comprehensive Utilization Engineering Technology Center; Researcher Li Yingtang, Researcher, Zhengzhou Institute of Comprehensive Utilization of Minerals, Ministry of Geology and Mineral Resources, China Building Materials Science Research