Mortar bonds masonry units together and distributes load between them. The strength of a wall depends as much on the mortar as on the units: mortar of insufficient strength or with unsuitable grading weakens the whole structure.

Tests on hardened mortar determine compressive and flexural strength, density and the particle size of the aggregate. These three parameters are enough to verify the declared mortar class and its compliance with the design.

Specimens are taken during the works, at the time the mortar is placed, and tested after standard curing.

The mortar tests below are those our laboratory is accredited for under ISO/IEC 17025, certificate LT 069:

 

  1. Particle size (grading analysis) — < 4.75 mm — BS EN 1015-1:1999
  2. Density of hardened mortar — < 3000 kg/m³ — BS EN 1015-10:1999
  3. Compressive and flexural strength of hardened mortar — 2.5÷25 MPa — BS EN 1015-11:2019

Please contact us for further details

Accreditation

Independently verified competence

Our laboratory is accredited by the General Directorate of Accreditation (DPA) of the Republic of Albania to S SH ISO/IEC 17025:2017, “General requirements for the competence of testing and calibration laboratories”.

ISO/IEC170252017
Testing Laboratory

Registration number LT 069. Granted 08.06.2025 and valid until 07.06.2029. The certificate is issued together with its accredited scope.

View certificate (PDF)

ISO/IEC170252017
Calibration Laboratory

Registration number LK 005. Granted 06.08.2025 and valid until 05.08.2029. The certificate is issued together with its accredited scope.

View certificate (PDF)

DPA is a signatory of the EA MLA and the ILAC MRA for testing.