This technology is applicable to
construction of underground bitumen membrane, asphalt paving of cement material
waterproof layer construction.
2 construction preparation
2.1 materials and requirements:
2.1.1 coil: petroleum asphalt felt, paper,
glass fibre cloth, linen pregnancies of three.
2.1.1.1 asphalt waterproofing membrane
specification shall conform to the requirements in table 3-2.
Bitumen waterproofing membrane
specification sheet 3-2
Label width (mm) roll area (m2) volume
weight (kg)
915 pink felt more than 28.5
1000 piece felt more than 31.5
915 pink felt ≥ 39.5
1000 piece felt more than 42.5
2.1.1.2 physical properties of asphalt
waterproofing membrane shall comply with the requirements in table 3-3.
Table of physical properties of asphalt
waterproofing 3-3
Performance requirements
No. 350, No. 500
Vertical pull (25 ℃ ± 2 ℃) ≥ 340N 440N
Heat resistance (85 ℃ ± 2 ℃, 2H) does
not flow, no concentration of bubbles
Flexible (18 ± 2 ℃) around the
20mm rods no cracks around the 25mm Rod crack
Pressure
Time 0.10MPa
≥30min ≥0.15MPa
≥30min
2.1.1.3 the appearance quality of asphalt
waterproofing membrane shall comply with the requirements in table 3-4.
Appearance quality of asphalt waterproofing
requirements table 3-4
Quality of project appearance requirements
Holes, made my injury is not allowed
With tires, uneven coating is not allowed
Other than creases and folds from the
volume of 1000mm, should be no greater than 100mm
Crack from the volume of 1000mm, should be
no greater than 10MM
Nicks, missing the edge RIP is less than
20mm, missing side length is less than 50mm, the depth is less than 20mm, each
volume should not exceed four.
Connector at each volume should not exceed
one
2.1.2 cementing materials:
2.1.2.1 building 10th, 30th, preparation of
asphalt with petroleum pitch Maddy fat used.
2.1.2.2 road petroleum asphalt, 60th, 60th,
or fusion.
2.1.2.3 pitch Maddy fat quality
requirements shall comply with the requirements in table 3-5.
2.1.3 other materials
2.1.3.1 Maddy grease filler preparation:
Slate powder, talc, mica, asbestos cement.
2.1.3.2 petrol stone, sand, cement, beans
(mung bean sand).
2.2 the main equipment
Should generally be available in asphalt
pans, blowers, oil drums, spoon, oil pots, colanders, rubber scrubbing brush,
Brown, tiger skin, long thermometer (300~350℃), thermal
insulation, fire-fighting equipment and so on.
2.3 operating conditions:
Asphalt Maddy fat quality requirements for
table 3-5
Marking
Name of index
S-60
S-65
S-70
S-75
S-80
S-85
Maddy 2mm thick asphalt resin bonding two
pieces of asphalt, at not less than the following temperature (℃), at 1:1
Parked on a slope 5h, asphalt Maddy fat
should not be running, linoleum should not slide
(C) 60 65 70 75 80 85
2mm thick asphalt in the asphalt coating
Maddy lipid layer, 18 ± 2 ℃, around the following diameter (mm)
Rods, bent in half at a rate balanced with
2s time week, pitch Maddy fat should not have cracks
(mm) 10 15 15 20 25 30
By hand, two sheets of roofing felt paste
with a tear slowly from linoleum and asphalt Maddy grease paste on either side
of the torn part of, should not exceed 1/2 of the pasted area
2.3.1 water table above the waterproof
layer construction site, you should do a lowering of ground water level and
drainage works, water level dropped below waterproof bottom level 300mm, and
maintain the waterproof layer construction complete.
2.3.2 paving the waterproof layer of the
base should be dry, flat and without sugaring and hollowing and cracking
phenomenon and the corners should be rounded or obtuse angle.
2.3.3 floor or wall of embedded pipe,
deformation joints should be hidden by project check and acceptance, so that it
meets the requirements of specification for design and construction inspection.
2.3.4 waterproofing paste method in
construction, to pave and stick making waterproof layer outside of the wall,
according to the design requirements of permanent protection for masonry walls,
waterproofing vertical walls on the side of 1:3 cement mortar screeds, and
reach the surface after drying, waterproof construction.
2.3.5 when waterproof exterior
construction, clear waterproof Cha site, structural design should be asked to
do the leveling layer on the surface, waterproof until dry.
2.3.6 box-anti-plate reinforced concrete
floor with bunk beds before pasting the roofing waterproofing layer should be
on the cushion good cement mortar screeds, dry rear waterproof layer
construction.
2.3.7 asphalt coiled material waterproof
layer construction environment temperature should not be below 5 degrees
Celsius.
3 operational processes
3.1 process:
3.1.1 Planar coil paving process:
Protect the wall masonry wall → line → wall
leveling screed layer → cushion → maintenance →
Spraying cooled oil cleanup → → → pavement additional
layer of felt put the first layer of retaining wall paved first floor linoleum
linoleum →
→
(Tiered facade after the first plane) → cover
3.1.2 front coil paving process:
Demolition of temporary protection wall of
roots screed → maintenance → structures → spraying cooled oil →
Pu corner additional layers of yin and Yang
→ Pu first linoleum linoleum → → spread the second
layer (by design layered) →
Masonry wall (cover)
3.2 protection of the wall lines: base
cushion after the construction of buildings, according to the construction plan
on protection line the walls.
3.3 building protective walls: masonry
protection according to the design on the walls to the base plate flat
elevation above 200mm. Decent waterproofing the wall Cha, temporary protection
and built four brick walls, the four brick with lime mortar, waterproof
dismantled when the exterior walls still to be done to meet the floor
waterproof membrane with a lap width of wall waterproofing membrane.
3.4 structural water-proof base screed:
coil pasted firmly, floor cushion, protective walls, structure of substrate
water-proof, screed, waterproof membrane in paving a smooth base surface.
Asking the point of yin and Yang into rounded corners.
3.5 screed conservation: screed finish
watering after conservation, its strength after rising by drying shall be
waterproof.
3.6 spray cooling oil: for waterproofing
asphalt paving Maddy fat combined with grass-roots, in front of the Pu coil
should be spread on veneer, spraying two cold oil.
Cold oil preparation and method:
Ratio: weight ratio 30% tar: 70% of
gasoline.
Preparation method: heat the asphalt to not
foaming, dehydration, cooled to 90 ℃, the gasoline
slowly into the asphalt, asphalt all injected with stirring until dissolved.
3.7 tiling waterproofing layer
3.7.1 Planar coil paving: paving coil
former, suitable base surfaces dry, spray cooling base oils combined with two,
and then line according to coil specifications and bonding requirements,
stratified by line-laying, paving coil should meet the following requirements:
3.7.1.1 paste roll the thickness of asphalt
binding material is generally 1.5~2.5mm.
3.7.1.2 coil lap length: long edges should
not be less than 100mm, short edge should not be less than 150mm. Upper and
lower layers and the adjacent two coil joints should be staggered, upper and
lower coil may not be perpendicular to pave and stick.
3.7.1.3 plane and corner of the façade, the
seams should be on the plane of the coil from the facade not less than 600mm,
as shown in Figure 3-1.
Internal corner the first layer of asphalt
paving methods
Angle the first layer of asphalt paving
method
Corner of the second floor linoleum tile
method
Trihedral angle linoleum tile in Figure 3-1
method
1-turn asphalt reinforcement layer; 2-corner
reinforcement layers; 3-screed; 4-linoleum
3.7.1.4 in all corners should be laying an
additional layer. Additional available two layers the same membrane, a layer of
high tensile strength sheet can also be used. Should consolidation for
additional shapes pasted carefully close, as shown in Figure 3-1.
3.7.1.5 paste should flatten when coil
compaction. Coil with grass and roll between each layer must work closely
bonded, excess asphalt cement material should extrude, seam must use asphalt
seal carefully. When the final layer coil stickers should be evenly on the
surface coating layer thickness is 1~1.5mm hot asphalt cement materials. While
sub-combination of coarse sand to form a waterproof layer.
3.7.1.6 plane and vertical construction
joints, waterproofing Cha process is shown in Figure 3-2.
3.7.2 façade tile sheet: suitable base
surfaces dry before paving, sprayed two cold oil, dry immediately after laying.
Tile elevation coils, there are two kinds of paving methods, its requirements
are as follows:
3.7.2.1 façade of coiled material
waterproof layer outside the anti-sticking: should be laying flat, which pasted
facades, façade junction should put an additional layer. General construction
facade structure construction seam height to prevent the roots at the end of
stick coils, coil Cha first should leave lap length, the range of application
of protection wall of lime mortar, outside structural wall against exterior
waterproofing layers, layered Cha, external waterproof fault Cha at the seam as
shown in Figure 3-2. Upon acceptance, building protective walls.
2 waterproof fault Cha seams
1-waterproof structure required; 2-oil
Felt-waterproof; 3-screed
3.7.2.2 facade waterproofing layer
anti-paste method: in front of the construction should be permanently protected
wall masonry with waterproof structure required on the same layer. Protect wall
stickers waterproof membrane surface should 1:3 cement mortar screeds, spraying
cooled oil after drying, dry laying linoleum sheet. Volume material Pu posted
must layered, first Pu posted State surface, Hou Pu posted plane, Pu posted
State surface Shi should first Pu corner, Hou Pu big surface; volume material
waterproof layer Pu finished Hou, should by specification or design
requirements do cement mortar or concrete cover, General in State surface Shang
should in brushing waterproof layer last a layer asphalt cemented material Shi,
stick Shang clean of rough sand, and stay cooling Hou, wipe a layer 10~20mm
thick of 1:3 cement mortar cover; in plane Shang can laying a layer 30~50mm
thick of fine stone concrete cover. Laying anti-sticking within the protection
wall outside turn coil method as shown in Figure 3-3.
3.7.2.3 waterproofing membrane at the
junction of onion embedded parts as shown in Figure 3-4.
Figure 3-3 protection method of laying of
the bend in the wall felt
1-waterproof structure required;
2-permanent wood; 3-temporary wood; 4-temporary protection Wall; 5-permanent
protective walls;
6-the additional layer of linoleum;
7-cover; 8-tar; 9-screed; 10-reinforced cushion
Figure 3-4 asphalt felt waterproof layer
and at the junction of the buried pipeline diagram
1-tube; 2-embedded parts (the flanged
casing); 3-plywood; 4-tar; 5-bolt;
6-crimp ring of caulking material;
7-filling material; 8-need waterproof structure; 9-protecting walls;
10-additional layer of felt
3.7.2.4 using embedded rubber or plastic
deformation of the sealing strip joints as shown in Figure 3-5.
3.8 coating or protective walls:
External anti stick surface of the
waterproofing layer should cover, flat coil made of fine stone concrete cover
thickness for 30~50mm; elevation 1:3 cement mortar layer, 10~20mm thick.
4 quality criteria
4.1 project:
4.1.1 membrane and materials must comply
with the design requirements and specification for construction and acceptance
of rules.
4.1.2 waterproofing layer and its
deformation joints, embedded fittings and details practices must comply with
the design requirements and specification for construction and acceptance of
rules.
4.2 Basic project:
A wall slot backplane slot
Figure 3-5 an embedded rubber or plastic
deformation of the sealing strip joint diagram
1-the waterproof structure; 2-filling
material; 3-sealing strip; 4-joint grease; 5 additional layer-linoleum;
6-asphalt felt waterproof layer;
7-cement mortar surface; 8-concrete pad;
9-cement mortar screeds; 10-cement mortar layer; 11-protection wall
4.2.1 primary solid surface is clean and
smooth, corners are rounded or obtuse angle between yin and Yang, cold oil
coating, no missing coating.
4.2.2 tiling methods and lap, your head
shall conform to the provisions of the code for construction and acceptance of,
bond close, sealing the seams, no damage, defects such as hollow.
4.2.3 coiled material waterproof layer of
bonding, with dense, uniform thickness.
5 finished product protection
5.1 underground waterproofing layer
embedded must not touch the pipeline damage deflection and clogged debris.
5.2 volume material waterproof layer paving
is complete, timely protection to prevent construction hit the waterproof
layer; external waterproof layer paving is complete, should be designed to
build protective walls.
5.3 volume material waterproof layer
construction of plane and completed, shall not be placed on the waterproofing
material or construction of waterproof layer used as a shipping lane.
6 quality problems to be noticed
6.1 volume material waterproof layer empty
drum: volume material waterproof layer empty drum, occurred of reasons more is
volume material waterproof layer of grass-roots containing water rate high,
leveling layer not dry, on construction volume material waterproof layer, will
moisture seal in inside, met hot gas will waterproof layer muster; different Pu
posted linoleum volume material Shi, pressure have not tight, paste not dense,
Wo live operation Shi of heat, makes volume material sparkling, and empty drum.
Construction should pay attention to grass-roots drying operations should be
compacted stick not Wo gas, you can prevent the occurrence of hollowing.
6.2 leakage: underground volume material
waterproof engineering leakage main occurred in wear wall tube at, and bolt at,
and deformation sewing at and volume material received Cha at, its reasons is:
these special parts do waterproof of grass-roots processing bad, structure not
dense, leveling layer received head not closely; volume material additional
layer received side not strict, volume material CD cut not rules; deformation
sewing check water with twist pressure bad, structure deformation, reasons
makes deformation sewing at leaking; volume material received Cha at has
construction of received Cha volume material has damaged, Pu stick not strict
and leaking. In construction depending on the particular site, adopt a standard
approach, when serious crop by shape coil, the surrounding flat, bond,
additional layer in these parts after laying, carefully check, make checks on
acceptance.
7 quality records
This standard shall meet the following
quality records:
7.1 information on waterproofing product
certificate and retest.
7.2 mixing and pasting test of asphalt
binding material information.
7.3 hidden project and quality inspection
and evaluation of information.
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