Range
The process is applicable to the construction of industrial and civil construction of toilet, bathroom floor of the polyurethane, neoprene latex asphalt, SBS rubber modified asphalt coating waterproofing materials such as construction.
Construction preparation
2.1 Materials and main equipment:
2.1.1 Polyurethane waterproof coating: It is a kind of chemical reaction type coating. It is used in two-component form. After the proportion of group A and group B is matched according to the stipulation, chemical reaction takes place, from liquid state to solid state, Waterproof coating.
2.1.1.1 Body material:
A component: isocyanate-containing material to 3.5 ± 0.2% is appropriate.
Component B: hydroxyl content, to 0.7 ± 0.1% is appropriate.
A, B material flammable, toxic, are packed in iron drums, storage should be sealed, after entering the cool, dry, no strong direct sunlight of the Treasury (or site) storage. The operator should wear gloves, masks, glasses, etc., to prevent solvent poisoning. The operation should be carried out in accordance with the proportion of the manufacturers instructions, the operating site to fire, ventilation,
2.1.1.2 Primary supporting material:
Phosphoric acid or benzene sulfonyl chloride: solidification too fast, as retarder.
Dibutyltin dilaurate: solidification too slow, as accelerator with.
Xylene: cleaning construction tools.
Ethyl acetate: Wash hands gel.
107 plastic: repair grass-roots use.
Glass cloth (width 90cm, 14 mesh) or non-woven fabrics.
Gravel: φ2mm or so, the bonding transition layer used.
Cement: more than 425 Portland cement, ordinary portland cement or slag Portland cement, fill the base with.
2.1.1.3 polyurethane waterproof coating, must pass the test before use, its technical performance should meet the following requirements:
Solid content: ≥93%;
Tensile strength: 0.6MPa or more;
Elongation: ≥300%;
Flexibility: at -20 ℃ around the φ20mm rod no cracks;
Heat resistance: at 85 ° C. Heating 5h, no film flow and concentration of bubbles;
Impermeable water: water pressure 0.2MPa constant pressure lh impermeable.
2.1.2 neoprene latex asphalt waterproof coating: Department of water emulsion type, with polychloroprene emulsion wave and emulsified petroleum asphalt under certain conditions, even after mixing emulsified, dark brown paint.
2.1.2.1 neoprene latex asphalt must be tested before use, its technical performance should meet the following requirements:
Appearance: dark brown emulsion
Solid content; ≥43%;
Bond strength: 0.67MPa;
Flexibility: -10 ℃ around the φ10mm round bar without cracks;
Heat resistance: 80 ℃, 5h no change;
Watertight: moving water pressure 0.1MPa, but the pressure 0.5h impermeable.
2.1.2.2 If the design requirements Gabriel, the alkali-coated glass cloth (width 90cm, l4 mesh) or non-woven.
2.1.3 SBS rubber modified asphalt waterproof coating: is based on asphalt, rubber, synthetic resin as the main raw material made of water emulsion elastic asphalt waterproof material. The addition of SBS to the asphalt increases the water resistance and elasticity of the asphalt.
2.1.3.1 SBS rubber modified asphalt waterproof coating, before use should be tested before passing the use of its technical performance should be consistent with the plant requirements:
Appearance: black viscous liquid;
Solid content: ≥40%;
Bond strength (with the cement mortar bond strength): ≥ 0.3MPa;
Flexibility: in -20 ℃ ± 2 ℃ around the φ3mm metal rod half weeks, no crack peeling off the coating.
2.1.3.2 glass cloth (width 90cm, 14 mesh) or non-woven fabrics.
2.1.4 main equipment: electric mixer, spices barrels, paint bucket, plastic scraper. Small scrapers, rubber scraper, spring scales, paint brush (with brush at the end of plastic), rolling brush (brush at the end with plastic), small trowels, oil shovel knife, broom, fire equipment.
2.2 operating conditions;
2.2.1 through the toilet floor between the floor of the riser, the casing has been done and acceptance, the tube around the gap with 1: 2: 4 pomegranate concrete packing dense (bottom floor to be supporting the template).
2.2.2 toilet floor ground cushion has been done to find 2% slope to the slope, the thickness is less than 30mm with mixed ash, more than 30mm thick with 1: 6 cement cinder slag.
2.2.3 toilet floor leveling layer has been done, the surface should be flattened calendering, solid flat, can not afford to sand, moisture content of less than 90% (simple detection method: in the primary surface of a 1m2 rubber sheet, 3 ~ 4h, covering the rubber plate parts without significant watermark, that is, as the moisture content requirements).
2.2.4 leveling layer of water gradient should be more than 2%, not local water, and the wall junction and corner are to be wiped into small rounded corners. Where the wall of the root tube are wiped out 5% slope, to avoid water storage here (Figure 7-10).
Figure 7-10 against the wall after the tube out of the water pan
2.2.5 do waterproof coating in the grass-roots level before the following parts of the building sealant seal. Through the floor of the riser around the junction of casing and riser, stool and riser interface, to drain around the mouth and so on. See Figures 7-11, 7-12, 7-13, 7-14.
And the junction of the ground junction with the riser, sealed building sealant
14 floor drain and ground junction and ground junction, even with building sealant seal
2.2.6 toilet room to do before the water must be set up adequate lighting and ventilation equipment.
2.2.7 flammable, toxic waterproof material to have fire prevention facilities and overalls, soft soled shoes.
2.2.8 operating temperature to maintain +5 ℃ above.
2.2.9 Operators should undergo professional training, with job certificates, the first model to do, after inspection and acceptance, before full construction.
Operating process
3.1 polyurethane waterproof coating construction process:
Clean the base layer → brushing primer → detail additional layer → first layer coating → second layer coating → third layer coating and sticky gravel
3.1.1 cleaning the grass-roots level: with a shovel will be stuck on the leveling layer of gray skin removed, with a broom to clean the dust, especially the pipe root, floor drain and drain and other parts should be carefully cleaned. If oil, the application of wire brush and sandpaper brush off. The surface must be flat, concave to use 1: 3 cement mortar leveling.
3.1.2 primer brushing: Polyurethane A, B two components and xylene by 1: 1.5: 2 ratio (weight ratio) with uniform mixing, you can use. With a rolling brush or paint brush dipped in primer evenly brushing the surface of the grassroots, not too thin and not too thick, brushing the amount of 0.2kg / m2 is appropriate. Brush should be dry after more than 4h, in order to conduct a process operation.
3.1.3 Additional layer: the polyurethane coating waterproof material according to the proportion of group A: B = 1: 1.5 ratio of mixing evenly, with paint brush dipped in the floor drain, pipe root, yin and yang angle and water outlet and so easy to leak Of the weak parts of uniform brushing, shall not leak brush (ground and wall junction, waterproof coating on the wall to do 100mm high).
3.1.4 The first layer of coating: Polyurethane A, B and xylene in two parts by 1: 1.5: 0.2 ratio (weight ratio) with, into the mixing bucket, stir evenly with an electric mixer (About 5min), scraper with a rubber scraper or paint brush a layer of paint, the thickness should be uniform, scraping amount of 0.8 ~ 1.0kg / m2 is appropriate, from the inside out to the operation.
3.1.5 the second layer of coating: the first layer of coating, the coating cured to non-stick hands, according to the first pass material ratio method, the second film coating operation, in order to make the film thickness uniform, scraping The direction of coating must be perpendicular to the direction of the first pass, with the same amount of scraping.
3.1.6 The third layer of coating: the second layer of the coating is cured, still according to the first two times the material ratio of good mixing coating material, the third times of scratch, scratch amount to 0.4 ~ 0.5kg / m2 Should be coated after the end of non-curing, the surface of the coating can be sprinkled clean φ2 ~ φ3mm particle size of the stone residue to increase the adhesion with the cement mortar coating.
In operation, according to the operation of the day ingredients, not stirring too much. Such as coating viscosity is too large inconvenience scratch, you can add a small amount of xylene dilution, adding the amount of not more than 10% of B material. Such as A, B mixture after curing too fast, the impact of construction, can add a little phosphoric acid or benzene sulfonated chlorinated retarder, the amount of not more than 0.5% of the material; such as coating curing is too slow, you can add a little two Dibutyltin laurate as accelerator; but the amount should not be greater than 0.3% of the material.
Waterproof coating done, the inspection and acceptance can be carried out after the water storage test, 24h no leakage, can be surface construction.
3.2 neoprene latex asphalt waterproof coating construction process:
Grass-roots treatment → Tu scraping neoprene latex asphalt water putty → scraping the first pass coating → detail structure and strengthening layer →
Paving glass cloth (or non-woven) at the same time brushing brush → paint brush the third time → brush the fourth pass paint → water test
3.2.1 Primary treatment: first check the leveling of the cement mortar layer is flat, whether the design of flushing slope meet the design requirements, surface pit pit, with cement mortar leveling, flattened with a steel wire brush will stick on the surface layer Pulp skin shovel out, and finally with a broom sweep the dust.
3.2.2 base scratch full of neoprene latex asphalt cement putty: the mixture will be neoprene neoprene asphalt waterproof coating into the keg, mix a little cement evenly, with the scraper to scratch the grass once again. Pipe root and corner to be thick scraping and smoothing.
3.2.3 the first pass waterproof coating: according to the daily use of neoprene latex paint asphalt waterproof paint into the keg at get off work will be poured into vats to save, to prevent the use of dry conjunctiva. To be the base of neoprene latex cement putty dry, began to brush the first pass paint, paint brush or roller brush dipped in paint brush over again, brushing should be uniform, the surface may not flow accumulation phenomenon.
3.2.4 Detail construction and reinforcement layer: Yin Jiao, Yang Jiao first to do a strengthening layer, that is, glass cloth (or non-woven) Paving in the above-mentioned parts, while brushing neoprene latex paint asphalt waterproof coating. To paste real, brush flat, no wrinkles.
The root of the tube is also the first to strengthen the layer. Can be glass cloth (or non-woven) cut into zigzag, paved on the surface of the casing, the top rolled into the casing, the bottom is affixed to the root plane, while brush neoprene latex asphalt waterproof coating, paste, brush level.
Floor drain, pit and other parts of the intersection with the ground first layer to strengthen the second layer.
If the wall without water requirements, the ground waterproof coating around the wall to roll up 100mm high, but also to do to strengthen the layer.
3.2.5 laying glass cloth (or non-woven), while brushing the second coating: fine structure layer done, can be a large area coating operation, the glass cloth (or non-woven) rolled into a cylinder, (Or non-woven) roll, side piping paving, and then use a brush to glass cloth (or non-woven) rolling formation, remove the bubble, while the use of brush dipped in the same time, Paint in the paved glass (or non-woven) on the uniform brushing, the glass cloth (or non-woven) firmly bonded to the grass-roots level, shall not have leakage and wrinkles. General plane construction from low to high to do, follow the water from the stubble to the door to do, first do the vertical plane after the surface, glass cloth (or non-woven) lap no less than 10cm.
3.2.6 The third time waterproof coating: to be the second layer of paint dry, brush or brush with a brush full brush over the third times waterproof coating.
3.2.7 waterproof coating the fourth time: the third time after drying the paint, and then brush over the last painting again, the surface of a layer of coarse sand, dry after doing the water test Chun.
3.2.8 water storage test: waterproof layer brushing acceptance, the floor drain plugging, water 2cm high, time not less than 24h, if no leakage is qualified, can be surface construction.
Neoprene hole asphalt waterproof coating coating times and the glass wire (or non-woven) layers, according to design requirements to operate, can refer to the above method.
3.3 SBS rubber modified asphalt waterproof coating construction process:
Primary treatment → brushing the first pass coating → detail processing a cloth two coating → water storage test
3.3.1 primary treatment: with neoprene latex asphalt coating practices.
3.3.2 coating the first pass paint: paint brush dipped in SBS rubber modified bitumen waterproof coating, brushing over again, the first after the next, the first high after the low, brushing uniform, no leakage of the brush.
3.3.3 Details of treatment: riser root, floor drain, pit and other parts of the junction with the ground, should be carefully painted SBS waterproof coating, not leakage brush.
3.3.4 a cloth two Tu: first glass cloth roll into a cylinder, with paint brush dipped in paint, side brush, while rolling, side paste, at any time with a paint brush cloth flattening, excluding bubbles, glass lap length of not less than 5cm (if you need to shop the two-story cloth, the lap staggered up and down), followed by the paintbrush in the shop has been spread on the glass cloth and then brushing the paint until the glass cloth mesh covered with paint, brush paint will not stay There are dead fold, bubbles, Alice and white stubble, paving smooth.
3.3.5 water storage test: waterproof coating according to the design requirements of the coating finished, the quality acceptance, the water test, the temporary floor drain plugging the door at the wiping water barrier, water 2cm, observed 24h without leakage As qualified, can be surface construction.
Quality Standard
4.1 Warranty items:
4.1.1 coating film waterproof material used varieties, grades and mix, should meet the design requirements and the relevant provisions of the existing national standards. Waterproof coating technical performance of the four indicators must be re-tested by the laboratory after passing, before use.
4.1.2 waterproof coating layer and embedded pipe fittings, surface slope and other details of the practice should be consistent with the design requirements and construction specifications, no leakage (no water leakage observed 24h).
4.1.3 leveling layer moisture content of less than 9%, and after passing the inspection before the waterproof layer construction.
4.2 Basic Items:
4.2.1 coating layer brushing uniform thickness to meet the design requirements, do not reveal the end. Protective layer and waterproof layer bonded firmly, closely, no damage.
4.2.2 Primers and coatings Additional methods of brushing, lap closure, should meet the construction specifications, bonding firm, tight, Seal Seal, no hollowing.
4.2.3 If the surface layer is found to be defective, it should be re-painted according to the requirements of the lap, and by the relevant personnel certification.
4.2.4 Coating layer is not blistering, no flowing, flat no convex and concave, the same color brightness, and pipe fittings, sanitary ware, foot screw, floor drain, drain and other seams close.
Product protection
5.1 coating waterproof layer during the operation; shall not pollute the walls have been finishes, sanitary ware, doors and windows.
5.2 coating waterproof layer done, to be strictly protected, not to do before the protective layer, no person shall enter, nor shall the accumulation of debris in the bathroom, so as not to damage the waterproof layer.
5.3 floor drain or drain to prevent debris filled, to ensure smooth drainage. After water storage, do not forget to clean the floor drain.
5.4 surface layer for construction operations, the ground surface of the tube root, floor drain, drain, sanitary ware and the junction of the coating at the junction of the ground may not be damaged.
Should pay attention to quality problems
6.1 Water-repellent layer of the coating layer: There are air bubbles, mainly clean up the base layer, uneven primer coating or moisture due to the leveling layer, moisture content higher than 9%, brushing before the water content test, , Resulting in a large area from serious drums. Therefore, brushing the waterproof layer, you must clean up the grass-roots level, and do water content test.
6.2 After the completion of the surface layer of water storage test, a leakage phenomenon: coating waterproof layer done, the need for the first water test, if any leakage phenomenon, according to specific parts of the leakage repair, To all rework, until the water 2cm high, observed 24h does not leak so far. Ground surface finish, and then the second time water storage test, observed for 24 hours without leakage for the final qualified, fill in the water check records.
6.3 ground water storage and drainage is not smooth: the main reason is doing the ground cushion, not according to design requirements for slope, leveling layer did not make remedial measures, resulting in inverted slope or uneven, and water. Therefore, before doing the waterproof coating layer, first check whether the grass slope meet the requirements, and design does not match, it should be done after the water treatment.
6.4 After the completion of the second ground water storage has been qualified acceptance, but after the completion of the use of the pit is still a leakage phenomenon: the main pit outlet and sewer socket interface is not connected tightly, not connected after the construction Seal seal dense, resulting in leakage after use. In the sanitary porcelain live installation, you must carefully check whether the interface meets the requirements, and then the next procedure.
Quality Records
This process standard shall have the following quality records:
7.1 Polyurethane, chlorine latex asphalt, SBS rubber modified asphalt and other waterproof coatings, there must be a manufacturer certificate, the Beijing Municipal Science and Technology Commission issued a waterproof material certification, the technical performance of the construction unit re-test test records.
7.2 waterproof coating hidden records, water storage test records.
7.3 Waterproof coating sub-project quality inspection and assessment records.
The process is applicable to the construction of industrial and civil construction of toilet, bathroom floor of the polyurethane, neoprene latex asphalt, SBS rubber modified asphalt coating waterproofing materials such as construction.
2.1 Materials and main equipment:
2.1.1 Polyurethane waterproof coating: It is a kind of chemical reaction type coating. It is used in two-component form. After the proportion of group A and group B is matched according to the stipulation, chemical reaction takes place, from liquid state to solid state, Waterproof coating.
2.1.1.1 Body material:
A component: isocyanate-containing material to 3.5 ± 0.2% is appropriate.
Component B: hydroxyl content, to 0.7 ± 0.1% is appropriate.
A, B material flammable, toxic, are packed in iron drums, storage should be sealed, after entering the cool, dry, no strong direct sunlight of the Treasury (or site) storage. The operator should wear gloves, masks, glasses, etc., to prevent solvent poisoning. The operation should be carried out in accordance with the proportion of the manufacturers instructions, the operating site to fire, ventilation,
2.1.1.2 Primary supporting material:
Phosphoric acid or benzene sulfonyl chloride: solidification too fast, as retarder.
Dibutyltin dilaurate: solidification too slow, as accelerator with.
Xylene: cleaning construction tools.
Ethyl acetate: Wash hands gel.
107 plastic: repair grass-roots use.
Glass cloth (width 90cm, 14 mesh) or non-woven fabrics.
Gravel: φ2mm or so, the bonding transition layer used.
Cement: more than 425 Portland cement, ordinary portland cement or slag Portland cement, fill the base with.
2.1.1.3 polyurethane waterproof coating, must pass the test before use, its technical performance should meet the following requirements:
Solid content: ≥93%;
Tensile strength: 0.6MPa or more;
Elongation: ≥300%;
Flexibility: at -20 ℃ around the φ20mm rod no cracks;
Heat resistance: at 85 ° C. Heating 5h, no film flow and concentration of bubbles;
Impermeable water: water pressure 0.2MPa constant pressure lh impermeable.
2.1.2 neoprene latex asphalt waterproof coating: Department of water emulsion type, with polychloroprene emulsion wave and emulsified petroleum asphalt under certain conditions, even after mixing emulsified, dark brown paint.
2.1.2.1 neoprene latex asphalt must be tested before use, its technical performance should meet the following requirements:
Appearance: dark brown emulsion
Solid content; ≥43%;
Bond strength: 0.67MPa;
Flexibility: -10 ℃ around the φ10mm round bar without cracks;
Heat resistance: 80 ℃, 5h no change;
Watertight: moving water pressure 0.1MPa, but the pressure 0.5h impermeable.
2.1.2.2 If the design requirements Gabriel, the alkali-coated glass cloth (width 90cm, l4 mesh) or non-woven.
2.1.3 SBS rubber modified asphalt waterproof coating: is based on asphalt, rubber, synthetic resin as the main raw material made of water emulsion elastic asphalt waterproof material. The addition of SBS to the asphalt increases the water resistance and elasticity of the asphalt.
2.1.3.1 SBS rubber modified asphalt waterproof coating, before use should be tested before passing the use of its technical performance should be consistent with the plant requirements:
Appearance: black viscous liquid;
Solid content: ≥40%;
Bond strength (with the cement mortar bond strength): ≥ 0.3MPa;
Flexibility: in -20 ℃ ± 2 ℃ around the φ3mm metal rod half weeks, no crack peeling off the coating.
2.1.3.2 glass cloth (width 90cm, 14 mesh) or non-woven fabrics.
2.1.4 main equipment: electric mixer, spices barrels, paint bucket, plastic scraper. Small scrapers, rubber scraper, spring scales, paint brush (with brush at the end of plastic), rolling brush (brush at the end with plastic), small trowels, oil shovel knife, broom, fire equipment.
2.2 operating conditions;
2.2.1 through the toilet floor between the floor of the riser, the casing has been done and acceptance, the tube around the gap with 1: 2: 4 pomegranate concrete packing dense (bottom floor to be supporting the template).
2.2.2 toilet floor ground cushion has been done to find 2% slope to the slope, the thickness is less than 30mm with mixed ash, more than 30mm thick with 1: 6 cement cinder slag.
2.2.3 toilet floor leveling layer has been done, the surface should be flattened calendering, solid flat, can not afford to sand, moisture content of less than 90% (simple detection method: in the primary surface of a 1m2 rubber sheet, 3 ~ 4h, covering the rubber plate parts without significant watermark, that is, as the moisture content requirements).
2.2.4 leveling layer of water gradient should be more than 2%, not local water, and the wall junction and corner are to be wiped into small rounded corners. Where the wall of the root tube are wiped out 5% slope, to avoid water storage here (Figure 7-10).
Figure 7-10 against the wall after the tube out of the water pan
2.2.5 do waterproof coating in the grass-roots level before the following parts of the building sealant seal. Through the floor of the riser around the junction of casing and riser, stool and riser interface, to drain around the mouth and so on. See Figures 7-11, 7-12, 7-13, 7-14.
And the junction of the ground junction with the riser, sealed building sealant
14 floor drain and ground junction and ground junction, even with building sealant seal
2.2.6 toilet room to do before the water must be set up adequate lighting and ventilation equipment.
2.2.7 flammable, toxic waterproof material to have fire prevention facilities and overalls, soft soled shoes.
2.2.8 operating temperature to maintain +5 ℃ above.
2.2.9 Operators should undergo professional training, with job certificates, the first model to do, after inspection and acceptance, before full construction.
Operating process
3.1 polyurethane waterproof coating construction process:
Clean the base layer → brushing primer → detail additional layer → first layer coating → second layer coating → third layer coating and sticky gravel
3.1.1 cleaning the grass-roots level: with a shovel will be stuck on the leveling layer of gray skin removed, with a broom to clean the dust, especially the pipe root, floor drain and drain and other parts should be carefully cleaned. If oil, the application of wire brush and sandpaper brush off. The surface must be flat, concave to use 1: 3 cement mortar leveling.
3.1.2 primer brushing: Polyurethane A, B two components and xylene by 1: 1.5: 2 ratio (weight ratio) with uniform mixing, you can use. With a rolling brush or paint brush dipped in primer evenly brushing the surface of the grassroots, not too thin and not too thick, brushing the amount of 0.2kg / m2 is appropriate. Brush should be dry after more than 4h, in order to conduct a process operation.
3.1.3 Additional layer: the polyurethane coating waterproof material according to the proportion of group A: B = 1: 1.5 ratio of mixing evenly, with paint brush dipped in the floor drain, pipe root, yin and yang angle and water outlet and so easy to leak Of the weak parts of uniform brushing, shall not leak brush (ground and wall junction, waterproof coating on the wall to do 100mm high).
3.1.4 The first layer of coating: Polyurethane A, B and xylene in two parts by 1: 1.5: 0.2 ratio (weight ratio) with, into the mixing bucket, stir evenly with an electric mixer (About 5min), scraper with a rubber scraper or paint brush a layer of paint, the thickness should be uniform, scraping amount of 0.8 ~ 1.0kg / m2 is appropriate, from the inside out to the operation.
3.1.5 the second layer of coating: the first layer of coating, the coating cured to non-stick hands, according to the first pass material ratio method, the second film coating operation, in order to make the film thickness uniform, scraping The direction of coating must be perpendicular to the direction of the first pass, with the same amount of scraping.
3.1.6 The third layer of coating: the second layer of the coating is cured, still according to the first two times the material ratio of good mixing coating material, the third times of scratch, scratch amount to 0.4 ~ 0.5kg / m2 Should be coated after the end of non-curing, the surface of the coating can be sprinkled clean φ2 ~ φ3mm particle size of the stone residue to increase the adhesion with the cement mortar coating.
In operation, according to the operation of the day ingredients, not stirring too much. Such as coating viscosity is too large inconvenience scratch, you can add a small amount of xylene dilution, adding the amount of not more than 10% of B material. Such as A, B mixture after curing too fast, the impact of construction, can add a little phosphoric acid or benzene sulfonated chlorinated retarder, the amount of not more than 0.5% of the material; such as coating curing is too slow, you can add a little two Dibutyltin laurate as accelerator; but the amount should not be greater than 0.3% of the material.
Waterproof coating done, the inspection and acceptance can be carried out after the water storage test, 24h no leakage, can be surface construction.
3.2 neoprene latex asphalt waterproof coating construction process:
Grass-roots treatment → Tu scraping neoprene latex asphalt water putty → scraping the first pass coating → detail structure and strengthening layer →
Paving glass cloth (or non-woven) at the same time brushing brush → paint brush the third time → brush the fourth pass paint → water test
3.2.1 Primary treatment: first check the leveling of the cement mortar layer is flat, whether the design of flushing slope meet the design requirements, surface pit pit, with cement mortar leveling, flattened with a steel wire brush will stick on the surface layer Pulp skin shovel out, and finally with a broom sweep the dust.
3.2.2 base scratch full of neoprene latex asphalt cement putty: the mixture will be neoprene neoprene asphalt waterproof coating into the keg, mix a little cement evenly, with the scraper to scratch the grass once again. Pipe root and corner to be thick scraping and smoothing.
3.2.3 the first pass waterproof coating: according to the daily use of neoprene latex paint asphalt waterproof paint into the keg at get off work will be poured into vats to save, to prevent the use of dry conjunctiva. To be the base of neoprene latex cement putty dry, began to brush the first pass paint, paint brush or roller brush dipped in paint brush over again, brushing should be uniform, the surface may not flow accumulation phenomenon.
3.2.4 Detail construction and reinforcement layer: Yin Jiao, Yang Jiao first to do a strengthening layer, that is, glass cloth (or non-woven) Paving in the above-mentioned parts, while brushing neoprene latex paint asphalt waterproof coating. To paste real, brush flat, no wrinkles.
The root of the tube is also the first to strengthen the layer. Can be glass cloth (or non-woven) cut into zigzag, paved on the surface of the casing, the top rolled into the casing, the bottom is affixed to the root plane, while brush neoprene latex asphalt waterproof coating, paste, brush level.
Floor drain, pit and other parts of the intersection with the ground first layer to strengthen the second layer.
If the wall without water requirements, the ground waterproof coating around the wall to roll up 100mm high, but also to do to strengthen the layer.
3.2.5 laying glass cloth (or non-woven), while brushing the second coating: fine structure layer done, can be a large area coating operation, the glass cloth (or non-woven) rolled into a cylinder, (Or non-woven) roll, side piping paving, and then use a brush to glass cloth (or non-woven) rolling formation, remove the bubble, while the use of brush dipped in the same time, Paint in the paved glass (or non-woven) on the uniform brushing, the glass cloth (or non-woven) firmly bonded to the grass-roots level, shall not have leakage and wrinkles. General plane construction from low to high to do, follow the water from the stubble to the door to do, first do the vertical plane after the surface, glass cloth (or non-woven) lap no less than 10cm.
3.2.6 The third time waterproof coating: to be the second layer of paint dry, brush or brush with a brush full brush over the third times waterproof coating.
3.2.7 waterproof coating the fourth time: the third time after drying the paint, and then brush over the last painting again, the surface of a layer of coarse sand, dry after doing the water test Chun.
3.2.8 water storage test: waterproof layer brushing acceptance, the floor drain plugging, water 2cm high, time not less than 24h, if no leakage is qualified, can be surface construction.
Neoprene hole asphalt waterproof coating coating times and the glass wire (or non-woven) layers, according to design requirements to operate, can refer to the above method.
3.3 SBS rubber modified asphalt waterproof coating construction process:
Primary treatment → brushing the first pass coating → detail processing a cloth two coating → water storage test
3.3.1 primary treatment: with neoprene latex asphalt coating practices.
3.3.2 coating the first pass paint: paint brush dipped in SBS rubber modified bitumen waterproof coating, brushing over again, the first after the next, the first high after the low, brushing uniform, no leakage of the brush.
3.3.3 Details of treatment: riser root, floor drain, pit and other parts of the junction with the ground, should be carefully painted SBS waterproof coating, not leakage brush.
3.3.4 a cloth two Tu: first glass cloth roll into a cylinder, with paint brush dipped in paint, side brush, while rolling, side paste, at any time with a paint brush cloth flattening, excluding bubbles, glass lap length of not less than 5cm (if you need to shop the two-story cloth, the lap staggered up and down), followed by the paintbrush in the shop has been spread on the glass cloth and then brushing the paint until the glass cloth mesh covered with paint, brush paint will not stay There are dead fold, bubbles, Alice and white stubble, paving smooth.
3.3.5 water storage test: waterproof coating according to the design requirements of the coating finished, the quality acceptance, the water test, the temporary floor drain plugging the door at the wiping water barrier, water 2cm, observed 24h without leakage As qualified, can be surface construction.
Quality Standard
4.1 Warranty items:
4.1.1 coating film waterproof material used varieties, grades and mix, should meet the design requirements and the relevant provisions of the existing national standards. Waterproof coating technical performance of the four indicators must be re-tested by the laboratory after passing, before use.
4.1.2 waterproof coating layer and embedded pipe fittings, surface slope and other details of the practice should be consistent with the design requirements and construction specifications, no leakage (no water leakage observed 24h).
4.1.3 leveling layer moisture content of less than 9%, and after passing the inspection before the waterproof layer construction.
4.2 Basic Items:
4.2.1 coating layer brushing uniform thickness to meet the design requirements, do not reveal the end. Protective layer and waterproof layer bonded firmly, closely, no damage.
4.2.2 Primers and coatings Additional methods of brushing, lap closure, should meet the construction specifications, bonding firm, tight, Seal Seal, no hollowing.
4.2.3 If the surface layer is found to be defective, it should be re-painted according to the requirements of the lap, and by the relevant personnel certification.
4.2.4 Coating layer is not blistering, no flowing, flat no convex and concave, the same color brightness, and pipe fittings, sanitary ware, foot screw, floor drain, drain and other seams close.
Product protection
5.1 coating waterproof layer during the operation; shall not pollute the walls have been finishes, sanitary ware, doors and windows.
5.2 coating waterproof layer done, to be strictly protected, not to do before the protective layer, no person shall enter, nor shall the accumulation of debris in the bathroom, so as not to damage the waterproof layer.
5.3 floor drain or drain to prevent debris filled, to ensure smooth drainage. After water storage, do not forget to clean the floor drain.
5.4 surface layer for construction operations, the ground surface of the tube root, floor drain, drain, sanitary ware and the junction of the coating at the junction of the ground may not be damaged.
Should pay attention to quality problems
6.1 Water-repellent layer of the coating layer: There are air bubbles, mainly clean up the base layer, uneven primer coating or moisture due to the leveling layer, moisture content higher than 9%, brushing before the water content test, , Resulting in a large area from serious drums. Therefore, brushing the waterproof layer, you must clean up the grass-roots level, and do water content test.
6.2 After the completion of the surface layer of water storage test, a leakage phenomenon: coating waterproof layer done, the need for the first water test, if any leakage phenomenon, according to specific parts of the leakage repair, To all rework, until the water 2cm high, observed 24h does not leak so far. Ground surface finish, and then the second time water storage test, observed for 24 hours without leakage for the final qualified, fill in the water check records.
6.3 ground water storage and drainage is not smooth: the main reason is doing the ground cushion, not according to design requirements for slope, leveling layer did not make remedial measures, resulting in inverted slope or uneven, and water. Therefore, before doing the waterproof coating layer, first check whether the grass slope meet the requirements, and design does not match, it should be done after the water treatment.
6.4 After the completion of the second ground water storage has been qualified acceptance, but after the completion of the use of the pit is still a leakage phenomenon: the main pit outlet and sewer socket interface is not connected tightly, not connected after the construction Seal seal dense, resulting in leakage after use. In the sanitary porcelain live installation, you must carefully check whether the interface meets the requirements, and then the next procedure.
Quality Records
This process standard shall have the following quality records:
7.1 Polyurethane, chlorine latex asphalt, SBS rubber modified asphalt and other waterproof coatings, there must be a manufacturer certificate, the Beijing Municipal Science and Technology Commission issued a waterproof material certification, the technical performance of the construction unit re-test test records.
7.2 waterproof coating hidden records, water storage test records.
7.3 Waterproof coating sub-project quality inspection and assessment records.
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