金融界2025年5月24日消息，国家知识产权局信息显示，中交建冀交高速公路投资发展有限公司;河北工业大学申请一项名为“一种ECC防火修复材料、制备方法及应用”的专利，公开号CN120025112A，申请日期为2025年02月。
专利摘要显示，本发明提供了一种ECC防火修复材料、制备方法及应用，属于建筑材料技术领域。ECC防火修复材料的原料包括无机凝胶材料、碱激发剂、PVA纤维和水。碱激发剂加速了无机凝胶材料的水化反应，改变无机凝胶材料微观结构，使得该材料具有快硬早强特点。PVA纤维的加入使得该材料在具备快硬性的同时体积稳定，不会因为快速变硬而收缩。同时，PVA纤维高温下会逐渐分解并留下孔隙，材料内部在高温下产生的水蒸气通过该孔隙排出，使得该材料具有耐火性，在高温下不开裂。
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