骄阳下，汽笛长鸣。距离宁夏回族自治区石嘴山市惠农区黄河公路大桥不远处，乌玛高速公路如缎带般 蜿蜒向前。 7月22日，历经3年建设的乌玛高速公路惠农（蒙宁界）至石嘴山段建成通车，标志着乌玛高速公路宁夏 段全线贯通。乌玛高速公路惠农至石嘴山段全长57公里，修筑中利用了粉煤灰、煤矸石、矿渣等工业固 体废弃物超380万吨，实现了经济效益与生态效益双赢，并入选国家首批绿色低碳先进技术示范项目。 被攻克的关键技术，共计15项。"我们把固废变成了'超级混凝土'。"惠迎新说，团队通过多源固废物相 重构技术，将8种固废按特定比例混合，辅以自主研发的绿色胶凝材料，形成了比高强度混凝土还耐用 的新型材料。在试验路段，这种材料制成的路基经受住了40摄氏度高温和零下25摄氏度低温的考验，裂 缝率比传统材料降低70%。 "不仅要修一条路，更要在材料、施工等方面建立一套可复制的标准和模式。"自治区交通运输厅副厅长 魏力介绍，宁夏相继发布《钢渣沥青路面应用技术规范》《公路稳定类钢渣基层应用技术规范》等10项 地方标准，填补了行业空白。 固废筑路，还有助于破解生态治理难题。道路修建过程中，一处固废消纳场超100万吨煤矸石得到综合 利用，近50 ...

Core Viewpoint - The completion of the Wuma Expressway segment in Ningxia marks a significant achievement in utilizing industrial solid waste for road construction, promoting both economic and ecological benefits [1][3]. Group 1: Project Overview - The Wuma Expressway segment from Huinong to Shizuishan spans 57 kilometers and has been constructed using over 3.8 million tons of industrial solid waste, including fly ash, coal gangue, and slag [1]. - This project is recognized as one of the first national green low-carbon advanced technology demonstration projects [1]. Group 2: Technological Innovations - The technical team conducted extensive research, sampling over 20,000 samples from more than 30 factories along the route, discovering that industrial solid waste has advantages such as higher compressive strength and wear resistance compared to traditional materials [2]. - A total of 15 key technologies were developed, including a method to create a "super concrete" by mixing eight types of solid waste with self-developed green cementing materials, resulting in a material that outperforms high-strength concrete [2]. Group 3: Environmental Impact - The project has led to the comprehensive utilization of over 1 million tons of coal gangue, restoring nearly 500 acres of land previously contaminated by coal gangue [3]. - The use of over 3.8 million tons of industrial solid waste has saved nearly 3 million tons of sand and 80,000 tons of cement, while reducing carbon emissions by over 60,000 tons [3]. Group 4: Future Plans - Ningxia plans to replicate the successful experience of this project in new initiatives such as the Yinkun Expressway and explore further applications of solid waste materials in the construction sector [3]. - The goal is to achieve a comprehensive utilization rate of industrial solid waste of 75% by 2030, supported by ongoing technological innovation [3].