js waterproof coating construction process js waterproof coating thickness

China Paint Online News Information:
waterproof coatings have many kinds, js waterproof coating is one of them, the next nine positive paint network small editor will be in the following to share with you the js waterproof coating construction process and js waterproof coating thickness related knowledge.
js waterproof coating construction process
1, material description and characteristics
(1) has a high pull strength and elongation, strong follow to small cracks, tough coating, with obvious characteristics of flexible materials.
(2) has a high content of inorgeable cement-based materials, coating has a high durability, water resistance.
(3) is cured by cement hydration and partial evaporation, so it can be coated directly on wet grass.
(4) high bonding strength, coating film and cement and other grasses can be bonded firmly, coating in the vertical surface, slope and a variety of grasses have good results.
(5) directly in the wet surface construction and construction speed, waterproof film after no seams, waterproof overall good. In case of rain, water can be removed after rain.
2, construction preparation
2.1 construction conditions require
basement mating floor after construction and acceptance of qualified, basement capping after shear wall acceptance.
2.2 construction tools
construction tools include electric mixing machine, mixing bucket, rolling brush, ash bucket, pickaxe, small flat shovel, paint brush and so on.
2.3 operating conditions
(1) the base surface of the pores uneven, honeycomb, crevices, sand and other phenomena should be repaired and treated, the substation must be clean, no floating slurry, no clear water, no seepage.
(2) paint construction, the grass-roots yin and yang angle should be made into an arc, yin and yang diameter should be greater than 5mm, yang angle diameter should be greater than 10mm.
3, construction process
grass-roots surface inspection, cleaning, local repair→ brush JS waterproof coating bottom coating→ yin, yang angle and other parts to strengthen treatment→ brush JS waterproof coating first time →passing nonwovens → painting JS waterproof coating second and third time→ completed acceptance. On the slope, the long edge of nonwovens should be perpendicular to the direction of drainage, and be paved in reverse order of drainage; At corners and facades, nonwovens should be laid from the bottom up. Large-area construction of JS paint, non-woven paste before, in the laying site pre-positioned non-woven 5m to 10m, find the right direction, fixed in the middle, and then rolled up, the production of JS waterproof paint base coating once, to the bottom after the initial coagulation of the timely laying cloth. Construction personnel should be careful, apply JS substrate thickness should be uniform. Nonwovens should stick to empty drums, wrinkles, paste area should reach more than 85%. Nonwovens are pasted with JS paint. Shear wall waterproof bottom-up construction.
4, construction methods and requirements
(1) grass-roots must be flat, the surface has strength, there must be no loose, cracks, empty drums, sand, pits and other defects, and clean up.
(2) the base coating ratio of JS waterproof coating is m (liquid): m (powder): m (water) . . . 10:7:14. The ingredients are stirred well and no dry powder particles are allowed. Brush to be uniform, there must be no leakage, multi-painting phenomenon, put an end to falling.
(3) JS waterproof coating construction should be the yin and yang angle and other local additional layer to strengthen treatment, additional layer width of 500mm, 250mm on each side.
(4) painting JS waterproof paint for the first time, the material ratio is m (liquid) m (powder) m (water) s 10:7:0.2. Brush to be uniform and dense. JS coating requirements and the grass-roots bonding solid, no empty drum, peeling, cracking and other phenomena.
(5) paved non-woven once again, not empty drum, edge phenomenon, long-side hooking is not less than 70mm to 100mm, short-side hooking is not less than 100mm to 150mm.
(6) painted JS waterproof paint the second and third times, the material ratio is m (liquid) m (powder): m (water) s 10:7:0.2. Brush should be uniform, dense, each brush direction should be perpendicular to each other, to achieve waterproof paint thickness, the finished brush thickness of 1.2mm to 1.5mm.
(7) check repair: after the completion of construction, wait for JS waterproof coating conjunctivation to timely inspection of the waterproof layer, the use of a knife cut small pieces, the actual measurement of the thickness of the waterproof layer. According to 100m2 to check a place, the thickness of the coating film can not meet the requirements of the increase in brushing number, until the thickness reached, reached the thickness before acceptance.
(8) detailed approach: all corners and complex parts should be tiled with additional layers. The additional layer practice at the junction of the flat facade is shown in Figure 1.
5, quality requirements
according to the "underground waterproofing project quality acceptance specification" GB50208-2002 provisions, the coating film should be firmly bonded, no empty drum, damage, sliding edges, foaming, folds and other defects. JS coating and grass and other waterproof anti-paste area should not be less than 85%, seam paste area should be more than 95%.
6, Quality Assurance
(1) In order to ensure the quality and progress of the project, the operators before the start of quality management education, emphasizing the importance of construction quality, the quality of the project strictly implement the "three inspection" system. First of all, in the construction team to implement the self-inspection system, when workers in the construction operation or completion of a process, at any time to seriously carry out its operation according to the process, technical procedures requirements for self-inspection, in strict accordance with the construction program to work. Secondly, the construction team should carry out the handover inspection of the upper process or sub-project, strict quality control, comprehensive monitoring of the quality of the project, find problems, timely rework, resolutely put an end to the quality problem
(2) waterproof construction process, construction personnel should wear soft soles, construction can not have sharp objects contact waterproof layer, such as cart feet, shovels, gravel and so on.
(3) in the pouring of concrete protective layer before the entire construction process, do not allow people wearing nail shoes into the construction site, strictly prohibited on the waterproof layer above the cart, so as not to damage the waterproof layer.
(4) each waterproof layer is strictly prohibited in the rainy day construction.
7, finished product protection
(1) each time after the use of construction tools, should be cleaned up for reuse.
(2) waterproof layer should avoid contact with mineral oil, Vieslin, animal and vegetable oil, etc.
(3) JS waterproof layer is completed, the protective layer should be done in time to prevent structural construction from damaging the waterproof layer; Materials must not be placed on the waterproof layer and used as construction transport lanes.
js waterproof paint thickness
JS waterproof coating it does not pollute the environment, stable performance, good aging resistance, long waterproof life, safe to use, easy to use, simple operation, can be directly constructed in the wet substation without clear water.
thickness requirements:
1, the first time to 0.2-0.3mm is appropriate.
2, after each time around 0.4-0.5mm.
3, the final thickness of 2mm is the best.
4, general engineering have design requirements, the final project thickness is not less than 80% of the design thickness on the line.
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