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AB Classic - Precast concrete interlocking blocks

Name: AB Classic - Precast concrete interlocking blocks
Brand: Colinwell Masonry
SKU: 81TwLUqCkUwEm5xsAc1UuH

Verified by manufacturer 2 months ago

Colinwell Masonry

Mortarless Retaining Wall Blocks, which allow for the construction of mortarless retaining walls with a six degree setback.

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+44 (0)28 9061 8145 Website

Application

Suitable for:

All types of road and rail infrastructure projects that require approval by the Highways Agency (as the product holds a BBA Roads and Bridges certificate).
Large commercial and residential walls.
Low gravity (unreinforced) walls.

Description

Allan Block is a hollow-core, dry-stacking concrete block for the construction of retaining walls. Designed with a six degree raised front lip, which automatically establishes the setback from vertical.

Manufactured from a mixture of aggregates (65% recycled secondary aggregate content) and cement.

Features and benefits:

Cost-effective and versatile.
Offers high performance, quality, and lasting value.
Expected lifespan of 120 years (if designed and built in accordance with its British Board of Agrément (BBA), Roads and Bridges certificate).
Includes a hollow-core design which makes blocks easy to handle, promotes drainage and becomes solid when filled with stone.
Anti-climb edge.
Depending on site conditions, walls can be constructed up to 1.2 m in height, using the blocks and granular fill only.
Taller walls will require reinforcement, most often through the use of Geogrid, No-Fines Concrete or building a double-width gravity wall.
CE-marked and manufactured in accordance with BS EN 771-3, ISO 9001 and ISO 14001.
No need for pins, clips or mortar.
Can be constructed regardless of weather conditions.
Built-in drainage.
Durable and maintenance-free.
Freeze-thaw resistance.
High strength, durable block.
Efflorescence-free.

General information

Color Abbey Blend, Cinder Blend, Limestone Blend, Pewter Blend, Slate Blend, Yorkstone Blend.	Grey Red
Finish Split-face finish.	-
Material	Concrete
Shape	Rectangle
Size	L x W x H.
Length	450 mm
Width	300 mm
Height	200 mm

Uniclass	Pr_20_93_52_01 Aggregate concrete blocksPrimary
CAWS	D41/310 Drystack interlocking masonry F10/18 Concrete facing blockwork F10/255 Concrete facing blockwork

Product range	Blocks

Specification data - Aggregate concrete blocks

Standard	To BS EN 771-3.
Block description	Split-face texture, hollow-core, dry-stacking, precast interlocking concrete blocks. Raised front lip: 6° (automatically establishes the setback from vertical).
Compressive strength	-
Mean value	30 N/mm².
Freeze/ thaw resistance Has freeze-thaw resistance.	-
Recycled content	65%. Secondary aggregate content.
Work sizes (length x width x height)	450 x 300 x 200 mm.
Accessory and special shape types	Not required. AB Corner Block. H x W x D: 200 x 400 x 200 mm. Available left or right-handed, 26 kg. Insert requirements. AB Junior. H x W x D: 200 x 225 x 240 mm. Weight: 18 kg. AB Junior Lite. H x W x D: 100 x 225 x 240 mm. Weight: 9 kg. AB Lite. H x W x D: 100 x 450 x 300 mm. Weight: 18 kg. AB Wall Caps. H x W x D: 100 x 450 x 300 mm. To be fixed with a high-grade, waterproof, flexible masonry adhesive, 27 kg. Geogrid. For use when the block weight and setback do not provide enough structural support. For taller walls. Typical Geogrid reinforced walls will require an excavation depth of 70% or more of the wall height, to accommodate geogrid tails. Consult manufacturer for information. No-Fines Concrete Backfill. Will allow taller walls to be constructed with less excavation. For taller walls. Will require an excavation depth of approximately 40% of the wall height. Consult manufacturer for information.

Colour	Abbey blend. Cinder blend. Limestone blend. Pewter blend. Slate blend. Yorkstone blend. Show more
Angle	Setback: 6°.
Weight	35 kg.
Material/ Finish	Concrete mixture of aggregates and cement, split-face texture.
Average density	2100 kg/m³.
Water absorption	3–6%.
Efflorescence	None.
Life expectancy	120 year. If designed and built in accordance with its British Board of Agrément (BBA), Roads and Bridges certificate.