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Geotextile, geomembrane, composite geomembrane, anti-seepage membrane, waterproof board, ecological bag

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产品介绍：

By model, it can be classified as: CB type rubber waterstop (embedded type with a hole in the center); 

CP type rubber waterstop (Embedded type with no holes in the center) EB type rubber waterstop (external

attachment type with a hole in the center) EP type rubber waterstop (external attachment type with no

holes in the center). According to raw materials, they can be classified as: rubber waterstop, chloroprene

rubber waterstop, and ethylene propylene diene monomer (EPDM) rubber waterstop. According to their

usage, they can be classified as: embedded rubber waterstop, back-attached rubber waterstop (externally

attached rubber waterstop), steel-edge rubber waterstop, water-swelling rubber waterstop, and flat rubber

waterstop.

The modified scope of application: Rubber waterstop is mainly used in foundation projects where it is

set inconstruction joints and deformation joints during concrete cast-in-place and integrates with the con

crete structure, such as underground facilities, tunnels and culverts, water conveyance aqueducts, water

retaining DAMS, liquid storage structures, etc.

The construction device modification of the waterstop is partially or fully embedded in the concrete

during the concrete pouring process. There are many sharp-angled stones and sharp steel bar ends in the

concrete. Since the tear strength of plastic and rubber is 3 to 5 times lower than the tensile strength, once

the waterstop is punctured or torn, the crack will expand without a large external force. Therefore, during

the positioning of the waterstop and the concrete pouring process, Attention should be paid to the posit

ioning method and pouring pressure to prevent the waterstop from being punctured and affecting its wa

terstop effect. The detailed precautions are as follows: 1. The waterstop should not be exposed to the open

air for a long time, should be protected from rain, and should not come into contact with strong polluting

chemical substances. 2. During transportation and construction, avoid mechanical and steel bar damage

to the waterstop. 3. During the construction process, the waterstop belt must be firmly fixed to prevent

displacement when pouring concrete. The correct position of the waterstop belt in the concrete. 4. The

methods for fixing the waterstop include: using additional reinforcing bars for fixation; Special clamps for

fixation; Lead wire and formwork fixation, etc. If perforation is required, it can only be selected at the edge

nstallation area of the waterstop and must not damage other parts. 5. When placing an order, the user should

calculate the product length based on the engineering structure and planning drawings. For special-shaped

structures, there should be drawing explanations. It is advisable to connect the waterstop into a whole in the

factory as much as possible. If on-site connection is required, methods such as vulcanization bonding with an

electric heating plate, cold bonding (for rubber waterstop), or welding (for plastic waterstop) can be selected.

Rubber waterstop is used for water stopping. For steel-edge rubber waterstop, a positioning plate is welded

near the formwork outside the waterstop plate at the center of the rubber. Regarding steel-edge rubber waterstop,

it is required to be fully welded. The positioning plate only needs to be firm. There should be a distance of one

to two centimeters between the positioning plate and the formwork, and a plastic or wooden gasket should be

added in between. After demolding, remove the mold, cut off the screw and fill it with slightly expanding mortar.

There is another type that is rarely seen in China, which uses a shorter screw plus a connecting screw. After dem-

olding, it can be removed very conveniently.

Rubber waterstop is partially or fully embedded in the concrete during the concrete pouring process. Before

pouring the concrete, it is necessary to first keep it flat at the interface and firmly bond the joint parts. Then, pour

it vigorously with appropriate force and vibrate the concrete to position the waterstop, so that it can be well

combined with the concrete and avoid affecting the waterstop effect.

Construction precautions for rubber waterstop: During the construction process, as there are many sharp-edged

stones and sharp steel bars in the concrete, when pouring and positioning the waterstop, attention should be paid to

the impact force of pouring to avoid piercing the rubber waterstop due to excessive force. If any crackingis found, it

should be repaired in time; otherwise, the ability of the rubber waterstop to resist external forces will be greatly reduced

when the joint deforms and is subjected to water pressure. When fixing the waterstop, only holes can be drilled in

the permitted parts of the waterstop, and the main body must not be damaged. When positioning the rubber waterstop,

it is essential to ensure that it remains flat at the interface. Do not allow the waterstop to roll or twist. If any twisting or

non-twisting is found, adjustments should be made promptly. When pouring and fixing the waterstop, it is necessary to

avoid its deviation and unilateral shortening, which may affect the waterstop effect. When pouring concrete, it is also

necessary to vibrate it thoroughly to avoid poor bonding between the waterstop and the concrete, which may affect the

waterstop effect. The joint of the waterstop must be well bonded. If the on-site construction conditions permit, the

method of hot vulcanization connection can be adopted. Any so-called "lap joint" without any processing is definitely

not allowed.

The correctness of the construction and installation methods of rubber waterstop is the key to its use. We know

that rubber waterstop is partially or fully embedded in the concrete during the concrete pouring process. Because there

are many sharp-edged stones and sharp steel bars in the concrete, during the positioning of the waterstop and the pouring

of concrete, attention should be paid to the positioning method and pouring pressure to avoid the waterstop being

punctured. Because the tear resistance of plastics and rubber is 3 to 5 times lower than their tensile strength, if the product

is punctured, it will significantly reduce the product's ability to resist external forces. Therefore, extra caution should be

exercised during construction.

When carrying out the construction of rubber waterstop, pay close attention to the following aspects: When the

construction personnel are binding the steel bars and setting up the formwork, the embedded rubber waterstop must

adopt a reliable fixation method to avoid displacement during the pouring of concrete, and the correct position of the

waterstop in the concrete. When fixing the rubber waterstop, only holes should be drilled at the permitted parts of the

waterstop, and the main body must not be damaged. The fixation methods for the waterstop should be carried out in

accordance with the construction standards required by the planning. Common fixation methods include: using additional

reinforcing bars for fixation; Special clamps for fixation; Fix it with lead wire and template, etc. No matter which fixing

method is chosen, it is necessary to position the waterstop to avoid damaging the effective part of the waterstop and

facilitate the pouring of concrete. It should be connected as a whole in the factory as much as possible. If on-site

connection is required due to limitations such as manufacturing process and transportation conditions, hot-press

vulcanization bonding (for rubber waterstop) or welding (for plastic waterstop) should be selected. The appearance of

the joint should be flat and smooth, and the tensile strength should not be less than 80% of the base material. Any so-

called "lap joint" without any processing is definitely not allowed. For all the cross-connection points of the rubber

waterstop, we should use the accessories produced by our Chenglin Company to ensure that the on-site connection

is only carried out in the straight sections during construction. Flexible materials with satisfactory deformation capacity

and outstanding adhesion to concrete.

During the construction of rubber waterstop, as there are many sharp-edged stones and sharp steel bars in the

concrete, when pouring and positioning the waterstop, attention should be paid to the impact force of pouring to avoid

punctured rubber waterstop due to excessive force. If any cracking is found, it should be repaired in time; otherwise, 

when the joint deforms and is subjected to water pressure, the ability of the rubber waterstop to resist external forces

will be greatly reduced. When positioning the rubber waterstop, it is essential to ensure that it remains flat at the interface.

Do not allow the waterstop to roll or twist. If any change or non-expansion is found, it should be adjusted promptly. 

When casting and fixing the waterstop, it is necessary to avoid the deviation of the waterstop and prevent it from shortening

on one side, which may affect the waterstop effect. When pouring concrete, it is also necessary to vibrate it thoroughly to

avoid poor bonding between the waterstop and the concrete, which may affect the waterstop effect. The joint of the waterstop

must be well bonded. If the on-site construction conditions permit, the method of hot vulcanization connection can be adopted.