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Products

Concrete Blocks

GRS supplies high-strength concrete blocks across the south of England from its manufacturing sites in Essex (GRS Building Products) and Cornwall (Maen Karne).

The GRS solid dense 100mm 7.3N concrete block is one of the most versatile of all building products, suitable for every building application above and below ground, including cavity and solid walls, load-bearing and solid partitioning, and in block-and-beam flooring. GRS blocks are water and fire resistant, and give great sound insulation as well as contributing to a building's thermal mass as part of an overall low-energy design.

We currently supply blocks into East London and across the East of England – Essex, Hertfordshire, Cambridgeshire, Suffolk and Norfolk. (Maen Karne’s range of concrete products is available in West London, M4 and M5 Corridors, South West and West Country.

For details, speak to a member of our central sales team 0845 250 0793 (option 2) or call our sales representative Ashley Hayward on 07885 218317, email sales@grsbagging.co.uk

 

TECHNICAL SPECIFICATION

Block Specification

Block Type

100mm

Material

Solid Dense Concrete 

Dimensions (mm)

440x215x100

Approx mean density (Kg/m³)

2000

Approx weight (kg)

18.5

Thermal Resistance 3%

Thermal Resistance 5%

0.093

0.087

Sound Insulations (Rw dB)

43

Number per pack

88

 

 

Concrete Blocks to BS EN 771-3
Category II Aggregate Concrete Masonry Units

Compressive Strength

7.3 N/mm²

Dimension Tolerance

Category D1 (+3mm   -5mm)

Bond Strength

0.15 N/mm² fixed valye

Reaction to Fire

A1

Water Vapour Diffusion Coeff. ES EN 1745

µ 5/15

Mean Density

2000kg/m³

Equivalent Thermal Conductivity BS EN 1745

^ 1.00 50%

W/(m.k)

Durability 

Detailed Guidance in PD 6697:2010: Table 15