Examination report No: 220007478-2009-06

Commissioned by: Betonseal GmbH & Co. KG Commissioned on: 18.06.2009

Samples produced on: 30.05.2009

Task

Test to examine thermal conductivity within treated and untreated concrete samples (Concrete density: C20/25, dimensions 500 x 500x 80mm)

Procedure Specification

Application of coating CONTROLL@INNERSEAL

Test description and relevant regulations

DIN EN 12667: 2001-05: Thermal performance of building materials and building products – determination of thermal resistance using guarded hot plate apparatus – products with medium and high thermal resistance

These test results relate solely to the above specified samples. Publication of the examination report is only permitted in its original form. No alterations or condensed summary of the content may be made without prior permission from the MPA NRW.

1 Description of the examination

Sample specification: Standard concrete (C20/25) submitted by the client

Samples: CONTROLL@INNERSEAL Product delivered and coating applied by the client Dose The sample application was carried out by the client.

According to the client 0.5l of CONTROLL@INNERSEAL was applied to each sample.

The samples were treated on the day of production (fresh concrete) and 1, 2 and 3 days thereafter. CONTROL@INNERSEAL was applied to all surfaces to saturation. The samples were stored in airy conditions and the tests undertaken 60 days after production.

2 Test results

2.1 Thermal Conductivity The thermal conductivity was conducted according to DIN EN 12667, 60 days post-production.

The results can be found in the table below.

Table: Thermal Conductivity a) Treated samples

Temperature of the sample surfaces

Hot face / Cold face

Mean temp.

Temp diff. Mean temp

Mean thermal conductivity Lambda

Thermal conductivity at 10 oC, dry

Nr oC oC K oC W/(m*K) W/(m*K) 1 39,35 33,17 6,18 36,26 1,2299 2 30,87 24,43 6,45 27,65 1,1921 3 22,53 15,77 6,77 19,15 1,1482 1,107

a) Reference samples

Temperature of the sample surfaces

Hot face / Cold face

Mean temp.

Temp diff. Mean temp

Mean thermal conductivity Lambda

Thermal conductivity at 10 oC, dry

Nr oC oC K oC W/(m*K) W/(m*K) 1 39,87 33,33 6,54 36,60 1,5240 2 48,16 41,89 6,27 45,02 1,5718 1,373

Original table in German: