BS/EN 13529-2003 pdf download.Products and systems for the protection and repair of concrete structures — Test methods — Determination of resistance to severe chemical attack.
This BS/EN 13529 specifies a method for determining the resistance to severe chemical attack of surface protection systems.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter, For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments).
prEN 1504-2, Products and systems for the protection and repair of concrete structures — Definitions, requirements, quality control and evaluation of conformity — Part 2: Surface protection systems.
EN 1766, Products and systems for the protection and repa,r of concrete structures- Test methods – Reference concretes for testing.
EN ISO 868, Plastics and ebonite – Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868:1985).
EN ISO 1513, Paints and varnishes – Examination arid preparation of samples for testing (ISO 1513:1992).
EN ISO 2808, Paints and varnishes — Determination of film thickness (ISO 2808:199 7).
EN ISO 2815, Paints and varnishes — Buchholz indentation test (ISO 28 15:2003).
EN ISO 15528. Paints, varnishes and raw materials for paints and varnishes — Sampling (ISO 15528:2000).
ISO 4628-1, Paints and varnishes — Evaluation of degradation of paint coatings — Designation of intensity, quantity and size of common types of defect — Part 1: General principles and rating schemes.
ISO 4628-2, Paints and varnishes — Evaluation of degradation of paint coatings — Designation of intensity, quantity and size of common types of defect — Part 2: Designation of degree of blistering.
ISO 4628-4, Paints and varnishes — Evaluation of degradation of paint coatings — Designation of intensity, quantity and size of common types of defect — Part 4 :Designation of degree of cracking
ISO 4628-5, Paints and varnishes — Evaluation of degradation of paint coatings — Designation of intensity, quantity and size of common types of defect — Part 5 Designation of degree of flaking.
3 Principle
Resistance of the coating system to severe chemical attack is assessed by exposing one side of the surface
protection system to the testing liquid.
4 Apparatus
4.1 Laboratory maintained at the temperature of (21 ± 2) °C and the relative humidity of (60 ± 10) %.
4.2 Usual accessories to apply the surface protection system to the basic test pieces.
4.3 Concrete slabs as basic test pieces, according to EN 1766.
4.4 Test apparatus
The test apparatus consists of a metal frame to take up the test piece and to clamp one or two bell-type caisson chambers (see Figure 1) The bell-type caisson chamber consists of a bell-type steel cup with an inner diameter of> 100 mm. (The tested area is a circle with a diameter of 100 mm inside of the glued rings). It is connected to a compressed air vessel equipped with a pressure reducing valve via a compressed air hose. The pressure device is fixed on the surface protection system by a metal clamp. To ensure the tightness of the caisson chamber, a rubber cuff is placed between the surface protection system and the caisson chamber.
5 Sampling
A representative and homogenous sample of the material under test shall be taken as described in EN ISO 15528.
The sample shall be examined and prepared as described in EN ISO 1513.
6 Test method
6.1 Test pieces
Test pieces are concrete slabs measuring at least 300 mm x 200 mm x 40 mm ana are tabricatea in accordance with EN 1766 using a test concrete (C (0.45) with a maximum aggregate size of 8 mm.
Concrete slabs are prepared and stored according to EN 1766. Surface preparation is carried out according to EN 1766 by grit-blasting. Alter storage, according to EN 1766. the concrete slabs shall be stored for at least 7 days in a climate of (21 ± 2) °C / (60 ± 10) % R. H. before they are coated.
The test pieces are coated, cured and stored in accordance with the manufacturer’s instructions, The coating
thickness is to be measured in accordance with EN ISO 2808.
NOTE
It is possible to use slabs without any reinforcement.
It is also possible to use slabs with a reinforcement cage according to prEN 1062-7:2002, Informative annex C,
C.2.2.3. Then, after a crack-bridging test, the test of resistance against severe chemical attack can follow immediately with the same test pieces.
When the resistance of the coating above the crack in the concrete is to be tested. only one bell-type caisson chamber is used. It is positioned exactly above the notch in the slab.BS/EN 13529-2003 pdf download.