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大庆地处松嫩平原 ,属于无砂石地区 ,建筑材料缺乏 (需要外运 ) ,因而价格较贵。 80年代 ,大庆开发了钢渣石灰土 (来自于齐齐哈尔和鞍山 )。但到 1996年 ,钢渣价格涨到了 10 4元 /ｍ3(80年代为 14 5元 /ｍ3) ,而且强度低 ,水稳定性差 ,同时大庆几家电厂的粉煤灰排放也越来越多
Daqing is located in the Songnen Plain, which is a non-gravel area with a lack of building materials (which requires outbound transportation) and thus is more expensive. In the 1980s, Daqing developed slag limestone (from Qiqihar and Anshan). However, by 1996, the price of steel slag had risen to 104 yuan / m3 (145 yuan / m3 in the 1980s), and its strength was low and its water stability was poor. At the same time, fly ash emissions from several power plants in Daqing also increased