EN 14694:2005 – Waterproofing of concrete bridge decks and other concrete surfaces trafficable by vehicles
1 Scope
This European Standard specifies a test method for the evaluation of the resistance to impact puncturing of a sheet or sheet system.
2 Normative references
The fllwing referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13375, Flexible sheets for waterproofing – Waterprofing of concrete bridge decks and other concrete surfaces trfficable by vehicles – Specimen preparation
EN 13416:2001, Flexible sheets for waterproofing – Bitumen, plastic and rubber sheets for roof waterproofing – Rules for sampling
prEN 14695:2003, Flexible sheets for waterproofing – Reinforced bitumen sheets for waterproofing of concrete bridge decks and other concrete surfaces trafficable by vehicles – Definitions and
characteristics 3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 13416:2001 and prEN 14695 :2003 apply.
4 Test methods
4.1 Principle
Pre-treatment impact puncturing is carried out at room temperature, where a conical weight is allowed to fall freely on to the waterproofing sheet. The degree of penetration is then assessed with the aid of dynamic water pressure testing.
4.2 Apparatus and materials
Equipment for impact puncturing, with a puncturing tool consisting of (1,0土0.01) kg of steel with a 90° conical point (see Figures 2 and 3).
Concrete slab, according to EN 13375 for supporting the test specimen during impact puncturing.
Suitable frame, for holding the test specimen firmly to the concrete slab.
Equipment for the water pressure test, with a dynamic water pressure applied (see Figures 4 and 5).
4.3 Preparation of test specimens
Take test samples and test pieces in accordance with EN 13416.
In the case of a double sheet system, weld or glue the two sheets together according to manufacturer instructions. Ensure that the sheet or sheet system thickness is within the limits of the equipment used.
Condition the test specimen for at least 24 h at a temperature of (23土2) °C.
4.4 Procedure
4.4.1 Carry out the testing at a temperature of (23士土2) °C.
4.4.2
Select on the test specimen of 400 mm x 200 mm two circular sections of diameter 135 mm approximately.
4.4.3 Lay the test specimen on the horizontal concrete slab, with the upper side of the sheet facing upwards. Hold the test specimen down and in place with a suitable frame. The sheet shall not be bonded to the concrete.
4.4.4 Impact the test specimen at 4 points in each circular section, ensuring that the 4 points are diametrically positioned within each circular section so that each point will fit into a disc slot according to Figure 5. Allow the puncturing tool to fall freely and vertically from a specified height of (200土2) mm onto the surface of the test specimen.
4.4.5 Cut the two circular test specimens (diameter 135 mm approximately) from the pre-treated test specimen for water pressure testing.
EN 14694:2005 – Waterproofing of concrete bridge decks and other concrete surfaces trafficable by vehicles