SR Plastic Filler@GB Flexible Filler@EPDM Composite Cover Plate

Filler @ EPDM composite cover plate

And the construction method of EPDM composite cover plates

Construction technology of plastic fillers

As the main link of the second waterstop of the concrete face dam

The anti-seepage cover sheet forms a tight waterproof system

It has played a crucial role in ensuring the safety of the panel dam.

Fillers in actual construction

The construction unit has very little knowledge about this material

Little is known about the detailed steps of the construction process

After the waterstop groove between the toe board and the panel is leveled

Install the corrugated waterstop again

Chloroprene rods are joined together

The joints are reinforced by bonding with glue and tape

To prevent sliding and shifting

Fix it to the asphalt cedar board in the groove with fine lead wire.

Construction of packing materials and EPDM cover plates

The key to the construction of this process lies in

Ensure the interface is clean and dry

Ensure that the fillers are firmly bonded to each other and to the concrete surface

The EPDM cover plate is firmly adhered to the concrete base surface

During construction, first use an Angle grinder and a wire brush to remove dirt from the interface

Then wipe it clean with cotton yarn

In a place with water or dampness

Dry it first and then apply the adhesive to the damp surface

Apply dry adhesive to the dry concrete surface

Dry adhesives generally need to be air-dried

It is related to temperature, wind speed, etc

Cover it when it feels sticky but not

The wet surface adhesive does not need to be dried and can be directly used to cover the filler.

. Remove the anti-stick paper from the packaging during construction

First, divide a piece of packing material into two halves from the middle

Fill it at the bottom of the groove

Apply pressure to make it stick firmly

Then paste it layer by layer

And stick it tightly from the middle to both sides

Release air while pasting

The packing joints overlap with each other

Make the connection between the packing and the interface a dense whole.

Check before covering the EPDM cover plate

Construction quality of packing materials

10~20m

A destructive inspection should be conducted

Open the page that has been completed

Check whether there are any air holes or impurities between the packing materials

Whether the bond is tight

And check the bonding area ratio with the concrete base surface

The ratio of the bonding area is less than

The construction section needs to be reworked

The cover plate is symmetrically placed along the centerline of the packing

And slowly squeeze from the middle to both sides

Tamp it down with a rubber hammer

To expel the air inside

Make the packing tightly combined with the EPDM cover plate.

The part where the edge of the cover plate is bonded to the concrete base surface should be used first

This can make the cover plate bond more closely and firmly with the concrete surface.

Epdm composite

The cover plate joint adopts a butt joint form

At the lap joint

After applying the base adhesive on the filler, cover it with a piece

Then neatly cover the cover plate on the composite board

Tap it tightly with a rubber hammer.

The original design for fixing the EPDM cover plate was adopted on both sides

Expansion bolts are used for unequal Angle steel

It is impossible for the concrete surfaces on both sides of the cover plate

Angle steel has high rigidity

It cannot adapt to this deformation

The Angle steel of the root is changed

The implementation effect has improved to a certain extent

But more joints have been added

The joint part is also difficult to be compacted

Later, after design modification, the Angle steel was changed to

-- This article is reprinted from China Packaging Network (pack.cn), original link: http://news.pack.cn/show-345672.html