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国家更新改造项目—焦作市粉煤灰煤矸石烧结砖厂第一条隧道窑扩建工程,最近投产成功.砖的质量经河南省建筑研究所测试符合国家标准,标号在200以上,其它技术指标部好于一般砖,并且每块比一般砖轻150克.利用煤矿的废物煤矸石为粘合剂和烧料,掺50%以上的粉煤灰造砖在国内是第一家.1988年5月,焦作电厂和焦作市郊区
National renovation project—Jiaozuo City’s first tunnel kiln expansion project of fly ash coal gangue brick sintering plant has been put into operation recently. The quality of the brick has been tested by the Henan Institute of Building Construction and complies with the national standard, with the number above 200, and other technical indicators. Better than general bricks, and each block is 150g lighter than ordinary bricks. The use of coal mine waste coal gangue as a binder and burning materials, with more than 50% of fly ash bricks is the first in the country. May 1988 , Jiaozuo Power Plant and Jiaozuo City Suburbs