1、基础要求:强度达建筑混凝土C25强度以上,有一定排水坡度(一般横向≤8‰,纵向≤2‰),
1, basic requirements: strength reaches above C25 strength concrete construction, there are certain (generally transverse drainage slope is less than or equal to 8 per thousand, longitudinal is less than or equal to 2 per thousand),
2、切割温度缝:新水泥基础浇铸后必须切割合理温度伸缩缝,原则以不大于6×10m为一方块切割,浇铸施工板块间必须切割温度缝,温度缝宽为5~8 mm,缝深不少于20 mm
2, the cutting temperature joint: the new cement base casting must be reasonable cutting temperature expansion joint, based on the principle of not greater than 6 x 10m cut into a square plate, casting construction must cut temperature crack, temperature joint width is 5~8 mm, crack depth of not less than 20 mm
3、酸洗:以清水润湿基面,用8%左右的稀盐酸泼洒并洗刷基面,再用清水冲洗干净,并圈划出积水 处,清洗干燥后基面应无白色粉化物及浮松物。
3: with water, pickling with hydrochloric acid splashes wetting basal, basal 8% or so thin and wash, and then rinse with water, and draw the circle of stagnant water, cleaning and drying after the surface should be no white powder compounds and solid matter.
4、温度缝处理:待基础干燥后,用专用填缝胶涂刷于温度缝两侧,再把可压缩泡棉轻挤满温度缝(减少基础热账冷缩对填缝材料挤压变形而影响表面效果)5、底涂:基础干燥后用专用底漆(TB-201)滚涂于基面,一般分两道滚涂,基础密实度低的需多道滚涂,原则为涂刷后基面形成光亮连续膜为止。
4, temperature joint processing: to base after drying, use special sealant is coated on the temperature on both sides of the joint, then the compressible foam light full of temperature joint (reduced thermal expansion and contraction deformation based on extrusion filling materials and effects of surface effect) 5, coated: foundation after drying with special primer (TB-201) coated on the surface of roll generally, two roller coating, multi basic compaction roller coating, principle base formed after brushing the continuous bright film so far.
6、积水处修补:积水处积水深度不超过5 mm的地方用弹性层(TB-002)加石英粉(或滑石粉)按1:1(重量比),加稀释剂(二甲苯)搅拌均匀,并调节至合适施工稠度,用直尺或刮板涂刮于积水处;若积水深度超过5 mm的地方,应用专用底漆(TB-201)加40~80目砂,按1:6~8(重量比)拌和均匀,平整摊铺于积水处并压实。
6, water patches: elastic layer with water at the water depth of no more than 5 mm local (TB-002) and quartz powder (or talcum powder) by 1:1 (weight ratio), adding a diluent (Er Jiaben) mixing evenly, and adjusted to the proper construction consistency, using a ruler or scraper scraping in stagnant water; if water depth of more than 5 mm place, application specific primer (TB-201) plus 40~80 mesh sand, press 1:6~8 (weight ratio) mixing evenly, smooth paving and compaction in the backwater.