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Koster Pile Cap Waterproofing System

Verified by manufacturer 1 month ago

Koster Aquatecnic Ltd Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • EPD

    EPD

    Certificate type

  • ISO 9001 Quality Management

    Certificate type

BBA Approved waterproofing system for pile caps in Basement slab design or in Radon sensitive areas.

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Application

The waterproofing of concrete-piled foundations can be problematic especially when bituminous liquid or sheet membranes are being used. You cannot use these types of materials over pile heads and pile caps because they do not have the bearing capacity to support the applied load.


Koster Aquatecnic offers a hybrid system which presents a unique system to treat this problem. By using the Koster NB1 Grey over the pile head it (a crystalline cementitious material) it is able to accept the load applied by subsequently poured ground beams or foundation slabs without acting as a separation membrane. This waterproofing can then be linked to the area or surrounding bituminous waterproofing over the rest of the slab.


An highly effective, economic and easily applied material that can be used in all Grades of below ground waterproofing as per BS 8102.

Description

The waterproofing of pile heads has to withstand heavy loads from the whole building and needs be easily connected to the area waterproofing.


This system contains the following components:

  • Primer: Koster Polysil TG500
  • Reprofiling mortar: Koster Repair Mortar Plus.
  • Waterproofing of pile heads: Koster NB 1 Grey.
  • Waterproofing layer: Koster Deuxan® 2C.
  • Embedded mesh: Koster Glass Fibre Mesh.


Following preparation to remove any debonding materials or loose/damaged concrete, prime the concrete pile head using Koster Polysil TG500. Once the primer has cured, the surface has to be levelled and re-profiled with Koster Repair Mortar Plus.


Koster NB 1 Grey is then used to waterproof the pile head. Brushed over the smooth pile head, and onto the surrounding blinding layer then left to cure.


The waterproofing on top of the blinding layer is made with Koster Deuxan 2C. This is applied in two coats with Koster Glass Fibre Mesh laid into the fresh first layer. Before pouring the concrete for the floor slab a gliding layer consisting of two layers of customary PE-Foil is applied between the waterproofing and the concrete - acting as a slip layer. Protect the waterproofing layer from mechanical damage when continuing with the application.


Please contact the Koster Technical team with any questions or for specific design advice - technical@kosteruk.com.

General information

Color

Grey

Finish

Trowelled

Material

Bitumen

Cement

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Ss_32_80_03_16 Cold-applied liquid sandwiched tanking systemsPrimary

CAWS

J30/130 Cold-applied damp-proofing

J30/10 Cold-applied damp-proofing

J20/110 Tanking

J30/110 Cold-applied tanking

Product range

External Basement Waterproofing Systems

Specification data - Cold-applied liquid sandwiched tanking systems

Substrates

-

Preparation

Ensure that dirt, oil or de-bonding materials are cleaned off. Any active water ingress must be treated first using Koster KD System or Koster Injection Resins.

Pointing and filling mortar

Koster Repair Mortar Plus.

Primer

Koster Polysil TG500.

Tanking

-

Coatings

Koster NB1 Grey applied over the profiled pile head.

Reinforcement

Koster Glass Fibre Mesh.

Pipe sleeves

Koster KSK SY15.

Waterproofing layer

KÖSTER Deuxan® 2C.

Guidance for specification option:

  • Two-component, compression-proof, elastic, polymer modified, fibrated bitumen thick film sealant for safe waterproofing of buildings in accordance with DIN 18195.
  • Resistant to pressurized water, approved by the building authorities. Radonproof.

Sustainability data

Contains Red List materials

No

Country of material origin

Germany

Country of product manufacture

Germany

Recyclability

No

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

EPD

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BBA Certificate for Koster NB1 Grey

BBA Agrément Certificate

BBA Agrément Certificate

BBA Certificate for Koster Deuxan 2C

EPD

Koster NB1 Grey Environmental Product Declaration

EPD

Koster Repair Mortar Plus Environmental Product Declaration

ISO 9001 Quality Management

ISO 9001 Quality Management

Koster Bauchemie AG - ISO 9001 Certificate

Literature

Koster Waterproofing Systems: The Green Pages of Waterproofing and Construction Chemicals

Koster Waterproofing Systems: The Green Pages of Waterproofing and Construction Chemicals

Koster External Basement Waterproofing Brochure

Koster External Basement Waterproofing Brochure

Koster Waterproofing Systems Company Brochure

Koster Waterproofing Systems Company Brochure

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