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我国科学家发明了一种仿地成岩的新 型建筑胶凝材料——“凝石”。这种将冶金 渣、粉煤灰、煤矸石等各种工业废弃物磨 细后再“凝聚”而成的“石头”，与寻常水 泥相比，在强度、密度、耐腐蚀性、生产 成本和清洁生产等许多方面表现十分突出。 “凝石”技术是国家高新技术研究发 展计划(即863汁划)的一项研究成果。由 清华大学孙恒虎教授发明的这一具有完全 自主知识产权的高新技术，已获得多项国 家专利。这一技术已于12日通过了教育部 主持的项目鉴定，下一步将提请国家863 计划的主管部门进行验收。 地质学研究表明，天然火山灰等物质 在常温常压条件下通过沉积、变质过程， 可以转变为长期稳定存在的铝硅酸岩石。 而“凝石”技术正是依据大地成岩原理，以
Our scientists invented a new type of gelogyled gelling material - “condensate.” This “stone”, which is made by grinding various industrial wastes such as metallurgy slag, fly ash and coal gangue and then “agglomerating”, is superior to ordinary cement in strength, density, corrosion resistance, production cost and Clean production and many other aspects of the performance is very prominent. “Stone” technology is a national high-tech research and development plan (863 plan) a research. The high-tech with complete independent intellectual property rights invented by Professor Sun Henghu of Tsinghua University has won many national patents. This technology has been approved by the Ministry of Education on the 12th project identification, the next step will be submitted to the national 863 plan department for acceptance. Geological studies show that natural volcanic ash and other materials at room temperature and pressure through the deposition, metamorphism process, can be transformed into long-term stability of the aluminosilicate rock. The “condensate rock” technology is based on the principle of diagenesis to