Peters W J
Can Med Assoc J. 1984 Apr 1;130(7):902-4.
When water is added to the dry materials of Portland cement calcium hydroxide is formed; the wet cement is caustic (with a pH as high as 12.9) and can produce third-degree alkali burns after 2 hours of contact. Unlike professional cement workers, amateurs are usually not aware of any danger and may stand or kneel in the cement for long periods. As illustrated in a case report, general physicians may recognize neither the seriousness of the injury in its early stages nor the significance of a history of prolonged contact with wet cement. All people working with cement should be warned about its dangers and advised to immediately wash and dry the skin if contact does occur.
当水加入到波特兰水泥的干料中时，会生成氢氧化钙；湿水泥具有腐蚀性（pH值高达12.9），接触2小时后会导致三度碱烧伤。与专业水泥工人不同，业余人员通常意识不到任何危险，可能会长时间站在或跪在水泥中。如一份病例报告所示，普通医生可能在早期既认识不到损伤的严重性，也认识不到长期接触湿水泥病史的重要性。所有接触水泥的人都应被告知其危险性，并建议如果确实发生接触，应立即清洗并擦干皮肤。
