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一、概述石油化工厂的许多设备及炉子,常选用水泥配制的耐火混凝土或粘土、水玻璃配制的耐火混凝土做衬里。使用这些混凝土做衬里,比起采用一般耐火材料具有许多优点。但是这些混凝土的规范规定,浇灌养护完毕后应处于温度不低于+5℃(用水泥配制)、+10℃(用水玻璃及粘土配制)的干燥环境中,这在寒冷地区施工时就很值得研究和讨论。二、值得研究的几项规定按石油工业部的《规炉5》第13条:“养护完毕的耐火混凝土衬里应保持+5℃的环境温度”。水利电力部《电建规101—63》第669条注意事项第3项提出:“……没有干
First, an overview of the petrochemical plant many of the equipment and stoves, often selected cement-based refractory concrete or clay, water glass made of refractory concrete lining. Using these concrete to make the lining has many advantages over the use of general refractories. However, these concrete codes stipulate that watering should be completed at a temperature of not less than + 5 ° C (formulated with cement) and at + 10 ° C (using water glass and clay) in a dry environment, which is well worth the construction work in cold areas Research and discussion. Second, several provisions worthy of study According to Article 13 of the Ministry of Petroleum Industry’s “stove 5”: “maintenance of the refractory concrete lining should be maintained at +5 ℃ ambient temperature.” Ministry of Water Conservancy and Electricity “Electric built regulations 101-63” Article 669 Notes Item 3: "... no dry