b、先铺设排水比较集中的部位(如排水天沟等处)按标高由低向高的顺序铺设(如下图)。
To pave the part with relatively central drainages (such as drainage gutter, etc.) based on elevation (from low to high) (see the figure below).
(4)卷材铺贴Membrane paving
用高压喷枪与卷材和基层的夹角处均匀加热,待卷材表面融化后把成卷的改性卷材向前滚铺使其粘结在基层表面。
To evenly heat the intersection angle between the membrane and the base course with high-pressure spray gun. After the membrane surface is melted, to roll and pave the coiled modified membrane forward, thus making it cohere with the base course surface.
(5)屋面女儿墙防水卷材铺贴Waterproofing membrane paving for the parapet of the roof
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女儿墙防水层施工时,应先铺满平面,然后由下往上铺贴,使卷材紧贴阴脚不应空鼓。在女儿墙上满粘卷材,粘贴要牢固,在女儿墙预留收口处满粘卷材,并使上层卷材长出下层卷材不小于30㎜,收头用水泥砂浆固定。
When the waterproofing layer construction is carried out for parapet, the surface shall be paved fully at first, and then pavement shall be made from the bottom to the top. The membrane shall firmly stick to the reentrant corner, without air cavity. To fully pave membrane on the parapet and the sticking shall be firm. To fully pave membrane at the reserved binding-off place of parapet, and the membrane on the upper layer shall be 30mm longer than the membrane at the lower layer. The end shall be fixed with cement mortar.
(6)主要节点构造做法Practices for main node structures
a.阴阳角:阴阳角处的基层处理后,先铺一层卷材附加层,附加层卷材应剪成下图所示形状,铺贴时要满粘在基层上。
a. Reentrant corners and external corners: After base course treatment at reentrant corners and external corners, to firstly pave one layer of membrane extra ply. The membrane used as extra ply shall be cut into the forms shown in the table below, which shall be fully stuck on the base course upon pavement.
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External corner attachment Reentrant corner attachment
b.阴阳角卷材铺贴方法图
Diagram for the membrane pavement methods at reentrant corners and external corners.
c.几种落水口防水做法Practices for waterproofing in several kinds of drain gullies
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d、预制内天沟变形缝防水构造Waterproofing structure of deformation joints in the internally pre-cast gutter
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e、屋面水平出入口防水构造Waterproofing structure of the horizontal outlet and inlet on the roof
f、管道出屋面处防水构造Waterproofing structure of the location where the pipe goes out of the roof
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