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随着混凝土砌块建筑的发展,这类建筑的保温问题已日益引起人们的关注。澳大利亚的砌块建筑,外墙的内表面出现结露问题,他们认为采用轻骨料或加厚墙体比用薄墙加类似聚乙烯泡沫等保温材料效果好。丹麦为解决砌块建筑的保温问题,在屋顶和地板上都加有300mm厚的保温层。法国设计的一种由两层空心砌块夹聚苯乙烯的夹层砌块曾获国际奖,他们近期研究表明,采用外墙保温,可获得较大的热阻,提高墙体的保温性能。德国在计算传热系数时,灰浆缝也计
With the development of concrete block building, the insulation of such buildings has increasingly attracted people’s attention. In Australia’s block building, condensation on the inner surface of the outer wall is a problem. They believe that the use of lightweight aggregates or thicker walls is better than using thin walls and insulation materials like polyethylene foam. In order to solve the insulation problem of block building, Denmark has added a 300mm thick insulation layer on the roof and the floor. A French-designed sandwich block with two layers of hollow blocks sandwiched by polystyrene has won an international award. Their recent research shows that with external wall insulation, larger thermal resistance can be obtained and the insulation performance of the wall can be improved. When calculating the heat transfer coefficient in Germany, mortar joints also count