先特-环氧地坪施工方案1(2)

核电防辐射

如果油或油脂污染了地面的任何一个部位，在实施任何一种基层处理工作前必须去除这些污染物。

1.5. At free edges such as aisle ways and doorways the floor topping should be terminated

properly. Cut a groove in the substrate along the line of termination. The groove to be at least as deep as the thickness of the topping with the inner edge cut at a 20° angle.

在自由边缘处，例如走廊、门道的地面交界处理须得当。沿连接线在混凝土基层挖一条凹槽。凹槽深度至少与面层一样，并且刻向内20°的角。

1.6. Prepare the concrete substrate using the chosen method, removing all laitance and weak or friable concrete. The finished surface should have the texture of medium to coarse sandpaper. 用选用的方法处理混凝土基层，去除所有的混凝土浮浆层或松散的混凝土。完工后的表面应该呈现中或粗砂纸的纹理。

1.7. Surface defects exposed during surface preparation such as shrinkage cracks, blow holes,

minor honey combing, minor damage to joint arrises, etc. shall be filled with thixo-tropic two component surface filler.

表面处理后所暴露出的混凝土的缺陷，如：收缩龟裂、空洞、蜂窝麻面、施工缝破损等，须用双组分的表面砂浆填料填补。

1.8. Larger repairs can be carried out using a rapid setting polymer repair compound.

大面积的修补可以使用快速铺设的聚合修补剂。

NOTE : When it is known prior to starting work on the floor that repairs are required, the repairs should be executed before general preparation is undertaken.

备注：如事先知道在施工地坪前需作修补，修补应在基本处理之前进行。

Remove joint sealant if installed.

如安装了密封胶，需拆除。

Place joint backer rod in joints, with the top of the backer rod either flush or 1-2mm above the floor surface. Push nails between the backer rod and the side of the joint, leaving the nails protruding, to act as markers. The Epoxy self-leveling will be laid over the joint, the joint being cut out later.

在接缝处放置备衬条，备衬条顶部或者和地面齐平，或者高于地面1-2毫米。在备衬条之间和接缝侧面钉上钉子，留出钉子的长度，作为标记使用。环氧自流平铺在接缝上，接缝今后将被切开。

1.12. When floor preparation is complete, vacuum the area to remove all dust and debris. 当地面处理完成以后，吸除区域内所有的灰尘和碎片。

Protect areas such as the bottom of walls and columns that may be splashed when the wet epoxy is being rolled with the spiked roller.

施工前要注意保护墙根、地面和天花板，以免用消泡滚筒滚涂或喷涂湿的环氧材料时溅到这些区域。

1.14. Place 50mm wide masking tape along free edges.

沿自由边铺设50毫米宽的胶带纸。