1 scope
This technology is applicable for
industrial and civil construction works roofing the use of polymer modified
asphalt coiled material waterproof layer of hot-melt construction projects.
2 construction preparation
2.1 materials and requirements:
2.1.1 polymer modified asphalt
waterproofing roll material: synthetic polymer modified asphalt linoleum; commonly
used are SBS modified asphalt linoleum.
2.1.1.1 polymer modified bitumen
waterproofing membrane specification, as shown in table 10-13.
Table 10-13
Thickness (mm) width (mm) length (mm)
requires
2.0 ≥ 1000 20
3.0 ≥ 1000 hot-melt
construction of 10, volume material thickness must be ≥ 4.0mm
4.0 ≥ 1000 hot-melt
construction of 10, volume material thickness must be ≥ 4.0mm
5.0 ≥ 1000 10
2.1.2 support materials:
2.1.2.1 neoprene bituminous mastics:
neoprene joined bitumen and solvent compounded, as a black liquid.
2.1.2.2 rubber asphalt caulk: sealing
compound used to detail embedded side seam.
2.1.2.3 protection layer materials: stones,
colored protective coating.
2.1.2.4 70th, naphtha, xylene, used to
clean contaminated sites.
2.2 the main tools:
2.2.1 electric blenders, high voltage hair
dryer, automatic hot-air welding machine.
2.2.2 blowtorch or combustible gas torch,
scroll iron trowel, brush, long brush, rolling steel tape measure, scissors,
broom, small lines.
2.3 operating conditions:
2.3.1 review drawings before construction,
preparation of waterproof construction programmes, and technology to give the
low-down; construction of roof waterproofing must be made by the professional
team, certified.
2.3.2 laying the waterproof layer of the
primary surface, dust, debris should be cleaned thoroughly.
2.3.3 primary slope should comply with the
design requirements, the surface should be Niki, Yin and Yang Kok should be
made by ARC, base surface must be dry, moisture content should be less than 9%.
2.3.4 coils and supporting materials must
be qualified, must comply with the design requirements and specifications,
technical performance standard requirements. Store flammable material away from
the source of fire.
3 operational processes
3.1 process (hot-melt construction):
Primary treatment agent coat of clean
grass-roots →
→ pavement additional layer coil → coil → paving hot
melt edge banding →
Water test → layers
3.2 cleaning the grass-roots: construction
prior to acceptance of the primary surface dust, clean up the debris.
3.3 primary brushing treatment agent:
polymer modified asphalt coiled material construction, by supporting the use of
product specifications, added primary treatment agent neoprene bituminous
adhesives industrial gas dilution and mix well using the long brush to brush
evenly on the surface of the grass-roots, after 4H at room temperature, start
paving membrane.
3.4 additional construction: general use of
hot-melt construction of modified asphalt coiled material waterproof layer on
daughter wall and water fall mouth, onion, and details such as cornices, corner
of yin and Yang to do additional layer, additional range shall conform to the
design and engineering standard requirements.
3.5 to pave and stick coil: the volume
layer, the thickness of the material, the design requirements. Multi-layer
laying seams should be staggered. Will modified sex asphalt waterproof volume
material cut into corresponding size, with original volume heart volume good
alternate; Pu posted Shi with put volume with with flame gun heating
grass-roots and volume material of junction, gun from heating surface 300mm
around, by roundtrip uniform heating, while volume material of material surface
just melting Shi, will volume material forward roll Pu, and paste, take received
parts should full stick firm, take received width full stick method for 80mm.
3.6 hot melt edge banding: Lap gun heating
coil and hot, both bond, to edge out of the pitch; sealants strict workmanship
for your head at the end.
3.7 waterproof layer construction: the
master according to the design requirements of rigid waterproof roofing roofing
cover. No master roof cover has two forms:
3.7.1 neoprene coat of waterproof layer
surface bituminous binders, then removed stone, requires spreading evenly, bonding,
forming layers protective layer.
3.7.2 silver coat of waterproof layer
surface reflective coatings.
4 quality criteria
4.1 project:
4.1.1 polymer modified asphalt
waterproofing roll-roofing and varieties and brands of adhesives and adhesive
mix, you must comply with the design requirements and the relevant provisions
of the standards.
4.1.2 waterproofing layer and its
deformation joints, eaves, flashing, water fall mouth, details at practices
such as embedded parts must comply with the design requirements and technical
code for roof engineering requirements.
4.1.3 waterproof coiled material leaking is
prohibited.
4.2 Basic project:
4.2.1 tiling waterproofing layer of
grass-roots level, Pan-water gradient should comply with the design
requirements, no sand, cracks on the surface, smooth and clean, water-free,
corner should have a circular or obtuse angle between yin and Yang.
4.2.2 uniform coat of polyurethane
adhesive, there shall be no leakage defects such as pitting and brush.
4.2.3 coiled material waterproof layer
tiling, lap, your head should comply with the design requirements and technical
code for roof engineering requirements. And bond, without hollowing, slip,
Homburg, bubbles, fold, injury and other defects.
4.2.4 protective layer of waterproofing
layer should be compact, solid, uniform thickness.
5 finished product protection
5.1 has been paving a good waterproofing
layers, measures should be taken to protect, is strictly prohibited on the
waterproof layer construction and transport and should be waterproof layer.
5.2 passing through layers of roofing,
waterproofing the wall of the tube, after completion of the construction and
damage displacement.
5.3, such as roofing, water fall mouth of
deformation joint, temporary plugs thread and block the construction of cover
to prevent falling into the material, after completion of construction will be
temporarily blocked, block covers cleaning, ensure the tube, mouth open.
5.4 roofing construction shall not be
contaminated walls, eaves side and he had finished construction of the finished
product.
6 quality problems to be noticed
6.1 roofing is not flat: screed
irregularities, which created, construction should be to find a good line, good
slope, screed construction should pull in check. The slope meets the
requirements, the smooth water.
6.2 empty drums: coil grass-roots don't dry
paving, paving not serious, easily occurred at the corner of an empty drum to
pave and stick coil should have a moisture content of grass-roots, do not meet
the requirements not paving material while paving should be flat, firm and
close bond.
6.3 leak: how happened in detail.
Additional paving layer, from coil cut and paste operation should attach snugly
in place, sealing, compaction, no Homburg, and so on.
7 quality records
This standard shall meet the following
quality records:
7.1 high polymer modified bitumen membrane
and materials product certificate, material entry should be the second
interview and information.
7.2 cemented material and bond test
preparation information.
7.3 hidden inspection data and quality
inspection and evaluation of data.
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