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建国饭店工程全部客房及部分餐厅的顶棚(约20000平方米)采用了从美国引进的吸音砂浆喷涂技术。实践表明,这种顶棚饰面做法吸音效果良好,美观舒适,施工简便,速度快(每台设备每班可完成570～600平方米),成本不高,有推广价值。一、材料与设备喷涂材料来自美国一家厂商,袋装干粉料,每袋重50磅(22.7公斤)。这种干料由白色粉细料和聚苯乙烯微粒骨料混合而成,粉料由滑石粉、石膏及类似纤维素的粘性材料组合而成。使用时每袋材料只需加8加仑(30.3公斤)洁净清水,搅拌均匀,
The ceiling of the Jianguo Hotel project (about 20,000 square meters) was used in all guest rooms and some restaurants (above 20,000 square meters). Practice has shown that this kind of roof finish practice has sound-absorbing effect, beautiful and comfortable, simple construction and high speed (each device can complete 570-600 square meters per class), the cost is not high, and it has promotion value. First, materials and equipment Spraying materials from a US manufacturer, bagged dry powder, each bag weighs 50 pounds (22.7 kg). The dry material is a mixture of white powder and polystyrene microparticle aggregates. The powder is composed of talc, gypsum and cellulose-like viscous materials. Use only 8 gallons (30.3 kg) of clean water per bag of material and mix well.