混凝土极易被硝酸铵腐蚀,这是因为混凝土属多孔材料,遇有液相作用,可生成结晶盐。由于结晶盐,体积膨胀而产生应力,导致混凝土裂缝、酥松、脱皮。我厂于１９７１年建成的硝酸铵库房的地面为沥青混凝土地面,使用至今未遭受腐蚀破坏。１沥青混凝土施工用配合比（１）沥青混凝土配 Concrete can easily be eroded by ammonium nitrate. This is because concrete is a porous material that can produce crystalline salts in the presence of liquid phase. Due to the crystalline salt, the volume expands and generates stress, which leads to concrete cracking, crisping, and peeling. The ground of the ammonium nitrate warehouse built by our factory in 1971 was asphalt concrete floor, and it has not been subjected to corrosion damage so far. 1 Mixing ratio of asphalt concrete construction (1) Asphalt concrete distribution