Ash GP 140 mm 7.3 N Coursing Blocks

Ash GP medium density concrete blocks are robust and durable, making them a suitable choice for walls built above and below ground. Manufactured to BS EN 771-3, their textured faces provide a surface for mortars, renders and plasters. They also provide a strong base for holding fixings.

Ash GP blocks contain a proportion of recycled materials, and their sustainability performance has been verified through an Environmental Performance Declaration (EPD).

Features and benefits:

• suits all general-purpose walling applications. It is recommended that walls of 215 mm thickness are constructed using 100 mm blocks laid flat.
• Long service life.
• Removes the need for on-site cutting, which reduces waste and improves productivity.

Mortar:

Generally, the mortar type for work above ground level should be designation (iii) / Compressive Class M4. Stronger mixes may be required if blocks are used below ground. Consult manufacturer for details.

Movement:

Vertical movement joints should be considered in accordance with masonry design codes and the recommendations of Published Document PD 6697:2019, at 6.0 — 7.0 metre spacings. In areas of increased stress, such as above and below openings in external walls, the blockwork may need to be reinforced to restrain movement.

Design:

The design of walls should be in accordance with relevant design standards including BS 8103-2:2013, BS EN 1996-1-1:2022 and the requirements of the Building Regulations.