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Mechanical Testing of Bricks

Mechanical and physical testing on bricks includes looking at their water absorption, porosity and density, and their compressive strength.
Please refer to the test methods below for further information, or contact one of the listed laboratories.

Specialist Service Offerings

Apparent porosity and density This test measures the porosity and density of bricks to be used for construction of load bearing walls. The method involves dimensional measurement and mass to determine density, followed by measuring the increase in mass when soaked in water for a standard period.
Cold crushing strength This test measures the compressive strength of bricks to be used in construction for load bearing walls. Specimens are first sampled from batches in a standard manner. The bearing faces are then either made perfectly flat by capping with sulphur or soft wooden spacers are used to take up surface defects, this will avoid any point loading. If frogs are present (indentations in the face) then these are filled with standard mortar. The maximum load sustained by the blocks before failure is then measured and the compressive strength calculated.
Compressive strength (ASTM C140) This test measures the compressive strength of bricks to be used in construction for load bearing walls. Specimens are first sampled from batches in a standard manner. The bearing faces are then either made perfectly flat by capping with sulphur or soft wooden spacers are used to take up surface defects, this will avoid any point loading. If frogs are present (indentations in the face) then these are filled with standard mortar. The maximum load sustained by the blocks before failure is then measured and the compressive strength calculated.
Compressive strength (BS 6717) This test measures the compressive strength of bricks to be used in construction for load bearing walls. Specimens are first sampled from batches in a standard manner. The bearing faces are then either made perfectly flat by capping with sulphur or soft wooden spacers are used to take up surface defects, this will avoid any point loading. If frogs are present (indentations in the face) then these are filled with standard mortar. The maximum load sustained by the blocks before failure is then measured and the compressive strength calculated.
Compressive strength (DIN 18501) This test measures the compressive strength of bricks to be used in construction for load bearing walls. Specimens are first sampled from batches in a standard manner. The bearing faces are then either made perfectly flat by capping with sulphur or soft wooden spacers are used to take up surface defects, this will avoid any point loading. If frogs are present (indentations in the face) then these are filled with standard mortar. The maximum load sustained by the blocks before failure is then measured and the compressive strength calculated.
Permanent linear change This test method covers the determination of the permanent linear change of refractory brick when heated under prescribed conditions, which will measure any potential shrinking when used for load bearing walls.
Water absorption This test measures the water absorption of bricks to be used in construction for load bearing walls. Specimens are first sampled from batches in a standard manner. The specimens are then dried, weighed, soaked in water for a standard period and then reweighed.
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Locations which specialise in this service are listed below.

Exova Linköping (Materials Testing) Exova offers qualified impartial services and long-term co-operation in Materials and Process Technology from development and design to maintenance/production and recycling. Having a history from the Swedish defence and aircraft industry we have specialist competence within the area of aerospace materials technology. Based on that experience, we have expanded our services to a wide range of industrial areas. Examples are: Nuclear, Wind Power, Manufacturing, Automotive and Electronics. In all these areas, our customers require the high competence within materials engineering CSM represents. Exova (Materials Testing) Box 1340 Gelbgjuregatan Linköping 58113 Sweden Enquiries Telephone: +46 13 16 90 18 E-Mail: info@exova.com

Exova CTR Srl CTR Srl Padova laboratory is located in the high industrialised Venice region (Veneto). This laboratory performs mechanical, metallurgical and chemical testing on metals and concrete. The laboratory is accredited according to Italian law 1086 (testing of materials for civil constructions) and as a multisite accreditation UNI CEI EN ISO / IEC 17025 Exova CTR Srl Via de Santo 211 35010 Limena Padova Italy Enquiries Telephone: +39 049 610 400 E-Mail: info@exova.com

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