03 Embedded parts The embedded iron parts on the wall or bottom plate of the basement shall be fixed with lifting pieces or special tools to prevent water from seeping into the room along the iron parts.
Generally, bolts or iron wires should not be used to penetrate the concrete wall to fix the formwork.
03 Before the waterproof concrete is poured, there is no bleeding and segregation, and the free fall height is not greater than; 04 The waterproof concrete shall be mechanically vibrated to ensure its compactness; 05 One group (6) of impermeable test pieces shall be reserved for each continuous concrete pouring, and at least 2 groups shall be reserved for each project; 06 Waterproof concrete shall be naturally cured for at least 14 days.
has a deep technical precipitation and standardized construction service system.
The natural grading of coarse aggregate is appropriate, the particle size should be 5~, and the silt content should not be greater than 1%.
02 In order to prevent the water diversion effect of the reinforcement, the protective layer of the reinforcement on the upstream shall not be less than, the reinforcement of the bottom plate shall not contact the concrete cushion, the reinforcement shall not be fixed on the formwork with nails or lead wires, and the reinforcement shall not be used as the cushion block of the protective layer to prevent water from seeping along the reinforcement.
When bolts are needed to penetrate the concrete wall to fix the formwork, water stop measures should be taken.
For example, tool type bolts are used, water stop steel plates are welded in the middle of bolts, and skids are set at both ends of bolts.
② The method of adding plugs to bolts: make grooves around the bolts on both sides of the structure, cut off the flat groove bottom of the bolts after removal of the formwork, and then seal the grooves with expanded cement mortar.
After the formwork is removed, the bolts shall be drawn out, the casing shall be sealed tightly with expansive cement mortar, and the pits left by the skid shall be sealed in the same way.
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Waterproof structure treatment 01 Construction joint Construction joint is a weak part of waterproof, so it should not be left or left less during construction.
Construction point 01 The formwork of waterproof concrete works shall be flat, and the joints shall be tight without mortar leakage.
If it is not reached, it shall be thickened locally.
③ The embedded casing shall be welded with a water stop ring: the split bolt shall be additionally provided with a casing, the casing shall also serve as a supporting head, and the two ends of the casing shall be provided with skids.
The minimum horizontal construction joint shall not be less than the bottom plate surface and not less than the edge of the through wall hole.
Buried rubber (plastic) waterstop: removable rubber waterstop deformation joint: adhesive neoprene plate waterstop deformation joint: 05 post pouring belt The waterproof layer at the post pouring belt is continuously opened, additional layers are added and the waterstop is pasted outside: the cushion layer is thickened locally and reinforcement is added, and the differential settlement can make the cushion layer slope without tearing the waterproof layer: the bottom plate can be thickened locally at the post pouring belt, and a waterstop is set.
The materials of waterproof concrete and the type of cement to be mixed shall be selected according to the design requirements, and the strength grade shall not be lower than Grade 32.5.
Direct buried type: wall through pipe casing type suitable for pipe diameter ＜; wall through box type suitable for pipe diameter ＞: it is suitable for multiple wall through pipes.
04 At present, buried rubber (plastic) waterstop is widely used for deformation joint waterstop.
In order to prevent disturbing the surrounding concrete and damaging the waterproof layer, the thickness from the end of the embedded parts to the external surface of the wall shall not be less than.
① Tool type bolt method: fix and tighten the waterproof bolt with tool type bolt.
Double Head Lifting Pin Anchor
The bottom slab concrete shall be poured continuously, and no vertical construction joint shall be left on the wall.
It has many qualifications, such as the first grade qualification of waterproof, anti-corrosion and thermal insulation engineering, environmental management system certification, etc.
The subordinate Shaqu Paint Factory has focused on waterproofing for 33 years and has a standardized laboratory.
When backfilling outside the wall, it is not allowed to punch or ram the wall through pipe extending out of the wall to avoid water leakage due to impact of waterproof measures.
Mix proportion requirements of waterproof concrete: the impermeability strength of trial mix shall be 0.2MPa higher than the design value; The cement consumption shall not be less than/m3, and shall not be less than/m3 when mixed with active admixture; The sand ratio should be 35%~45%, and the water cement ratio should not be greater than 0.55; The slump should not be greater than.
When concrete is poured, it is not allowed to impact and vibrate the embedded wall through pipe.
The horizontal construction joint of the wall shall not be left at the place with the maximum shear force and bending moment or at the junction of the bottom plate and the wall.
When removing the formwork, remove the tool type bolt, and then seal the bolt groove tightly with caulking material and polymer cement mortar.
About some of our projects, Sichuan Guanchen Environmental Protection Engineering Co., Ltd.
As the thickening of the base plate is generally not more than, it is not suitable to set the middle buried waterstop, and it is better to use the external affixed waterstop: ▼ Wonderful review of the past ▼ Formal implementation on March 1, 2023: two standards, namely, Waterborne Non curing Rubber Asphalt Waterproof Paint and Strong Cross Film for Asphalt Waterproof Coils [the Second and Fourteenth Solar Terms · Mild Cold], are gradually cold in the day, and the winter solstice.
02 Through wall pipe treatment Water supply and drainage, heating and cable pipes passing through the exterior wall of the basement shall be well waterproofed, otherwise water seepage will easily occur along the pipe root.
Guanchen Environmental Protection integrates R&D, production, sales, construction and service.
The service fields include: building waterproof, building insulation, anti-corrosion engineering, biogas environmental protection engineering.
The embedded iron parts are subject to large forces.
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In order to ensure the convenience of waterproof construction and pipeline installation, the pipeline shall be away from the corner of the inner wall or the protruding part, and the distance between pipes shall be greater than.
