26.08.2015   Rudiger Meiswinkel, Julian Meyer, Jurgen Schnell

Waterproofing methods and materials

The specifications of DIN 18195-6 [93] ‘Waterproofing buildings, proofing against outside pressing water and accumulating seepage water, design and execution’ largely represents the current state of the art. Continuing intensive technological developments have led to both new waterproofing materials and new waterproofing methods.

Design and Construction of Nuclear Power Plants. First Edition.

Rudiger Meiswinkel, Julian Meyer, Jurgen Schnell.

© 2013 Ernst & Sohn GmbH & Co. KG. Published 2013 by Ernst & Sohn GmbH & Co. KG.

Building waterproofs with different kinds of waterproofing strips and adhesives made in suitable combinations may be described as part of the state of the art. The individual components from which building waterproofs are made are defined in the materials tables in DIN 18195-2 [94] ‘Structural waterproofing’. The state of the art in science and technology is defined in KTA 2501 [92] ‘Structural waterproofing in nuclear power plants’. Waterproofing structures of various kinds are defined in Table 8.1.

Table 8.1 Types of waterproofing structure, from [92]

Struc­

ture

Type

Pressure Loading Condition, pstat- and Flow Path, R

Layer Sequence inc of the penetratioi

Foundation Slab (from top to bottom)

ependent

depth

Wall

(from inside to outside)

(Protective Concrete)

(Structural Concrete)a),b)

Adhesive layer of unfilled B 85/25, 1.5 kg/m2 ± 0.5 kg/m2

Plasticized-PVC sheet, bitumen compatible, 2 mm, in accordance with DIN 16937

<0,6 MN/m2 and

>10.0m

Adhesive layer of unfilled B 85/25, 1.5 kg/m2 ± 0.5 kg/m2

1

Bitumen sheeting for waterproofing of roofs G 200 DD, in accordance with DIN 52130

Adhesive layer of unfilled B 85/25, 1.5 kg/m2 ± 0.5 kg/m2

Plasticized-PVC sheet, bitumen compatible, 2 mm, in accordance with DIN 16937

Adhesive layer of unfilled B 25, 1.5 kg/m2 ± 0.5 kg/m2

(Subconcrete)a)

(Protective Coating)

(Protective Concrete)

(Structural Concrete)a),b)

Adhesive layer of filled B 85/25, 2.0 kg/m2 ± 0.5 kg/m2

Plasticized-PVC sheet, bitumen compatible, 2 mm, in accordance with DIN 16937

<1.5 MN/m2 and

> 2.0 m

Adhesive layer of filled B 85/25, 2.5 kg/m2 ± 0.5 kg/m2

2

Calotte-checkered copper band CU-DHP 0.1, in accordance with DINEN 1976

Adhesive layer of filled B 85/25, 2.5 kg/m2 ± 0.5 kg/m2

Plasticized-PVC sheet, bitumen compatible, 2 mm, in accordance with DIN 16937

Adhesive layer of filled B 25, 1.5 kg/m2 ± 0.5 kg/m2

(Subconcrete)a)

(Protective Coating)

(Protective Concrete)

(Structural Concrete)a),b)

Adhesive layer of filled B 85/25, 2.0kg/m2 ± 0.5 kg/m2

Plasticized-PVC sheet, bitumen compatible, 2 mm, in accordance with DIN 16937

Adhesive layer of filled B 85/25, 2.5 kg/m2 ± 0.5 kg/m2

Calotte-checkered copper band CU-DHP 0.1, in accordance with DINEN 1976

<2.0 MN/m2 and

>1.0m

Adhesive layer of filled B 85/25, 2.0 kg/m2 ± 0.5 kg/m2

3

Bitumen sheeting for waterproofing of roofs G 200 DD, in accordance with DIN 52130

Adhesive layer of filled B 85/25, 2.0 kg/m2 ± 0.5 kg/m2

Calotte-checkered copper band CU-DHP 0.1, in accordance with DINEN 1976

Adhesive layer of unfilled B 85/25, 2.5 kg/m2 ± 0.5 kg/m2

Plasticized-PVC sheet, bitumen compatible, 2 mm, in accordance with DIN 16937

Adhesive layer of unfilled B 25, 1.5 kg/m2 ± 0.5 kg/m2

(Subconcrete)a)

(Protective Coating)

a)

‘ The subconcrete of the foundation slab and the structural concrete of the wall shall be prepared such that an average adhesive tensile strength Phz > 1.5N/mm2 (single values > 1.0N/mm2) is achieved. The certification shall be performed in accordance with Appendix 2, ZTV-SIB 90.

a) In case the wall region of the structural concrete must be poured against the waterproofing, then special measures to enhance the adherence shall be provided for the border surface between the structural concrete and the waterproofing (e. g., in accordance with Sections 5.12 and 5.13 ARBIT-Brochure No. 61 “Waterproofing with Bitumen”).

Note: In the case of other types of waterproofing structures and the use of other waterproofing materials, cf. Section 4.1.7.

High soil pressures from permanent loads cause the bitumen in bituminous waterproofs to ‘extrude’ laterally. This effect can be counteracted by inserting copper ripple plates in the bitumen strips.

Which waterproofing structure can be used depends primarily on what stresses act on a building waterproof. As well as the verifications required, installation and design issues and particular aspects of execution must also be taken into account.