岩棉外墙外保温系统技术研究与应用

本文介绍了岩棉在外墙外保温领域应用的技术研究,该研究是北京市科委课题"高层建筑耐火外墙外保温系统技术研究"的核心内容。研究提出了现浇和锚固岩棉板2种涂料饰面构造做法,其中采用机械锚固热镀锌钢网施工可充分利用国产各类型岩棉板;岩棉板的界面砂浆处理可起到防止岩棉纤维扎手、增强岩棉板的防水性能和提高岩棉板与找平层的粘结强度的作用;聚苯颗粒的低导热系数过渡层提高了系统的整体性和抗裂性。2种构造做法经试验和工程试点证明均可解决目前国内岩棉难以应用在外墙外保温系统中的技术问题,具有优异防火性能的岩棉外保温系统可应用于任何类型的建筑中,在高层建筑和防火要求高的建筑中其优势更为明显。

Application and Study on Outer-wall External Thermal Insulation System based on Rock-wool

The paper introduced the applied technology of rock-wool in outer-wall external thermal insulation system.These applied technologies were the key content in the proposal of Study on Fire-proof Technology of Outer-wall External Thermal Insulation System for High-rise Building which belongs to Beijing Science Committee.The study provided two kinds of finish systems which were pouring and anchoring rock-wool panel,respectively.In general,galvanizing steel-meshwork using machine anchor could use all kinds of rock-wool panel made in China.The interface mortar used in rock-wool could prevent worker's hand from hurting and improve the water-proof capability and bonding intensity of rock-wool panel.The low-heat conductivity of polystyrene foaming granule paste improved the integer and anti-crack of system.Both of these two kinds of rock-wool systems could resolve the current rock-wool panel applied difficulty in outer-wall external thermal insulation system.The rock-wool external thermal insulation which has very nice fire-proof capability could apply in any kinds of buildings,especially high-rise buildings.