Bridge Jointing Aggregates | Grantex Specialist Aggregates

Premium Silica Sand

Ben Thomas — Tue, 24 Mar 2026 15:37:04 +0000

Grantex Premium Silica Sand is a clean, controlled silica product for use where chemical inertness, low iron and controlled grading are needed, e.g., primer broadcast to improve adhesion, fine infill where seal compatibility is important and where stable, inert filler is specified.

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110 Sand

Ben Thomas — Tue, 24 Mar 2026 15:34:39 +0000

Grantex 110 Sand is a very fine silica sand used for precise packing in small joint voids, as a broadcast to improve adhesive keying of primers or as a thin anti-washout layer where tight gradation and cleanliness are essential.

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52 Sand

Ben Thomas — Tue, 24 Mar 2026 15:33:00 +0000

Grantex 52 Sand is a fine, well-graded silica sand suitable for narrow-gap infill, thin bedding under flexible seals, or where a tightly graded, clean sand is required to limit seal underfill and aid even load distribution. Use where project or seal manufacturer calls for fine clean silica.

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30 Sand

Ben Thomas — Tue, 24 Mar 2026 15:29:27 +0000

Grantex 30 Sand is supplied where maximum permeability and coarse structural support are necessary e.g., transitional bedding adjacent to wingwalls or to protect joint housings from washout. Use where the specification calls for a coarse, low-fines material that delivers long-term drainage and resists movement under cyclic loading.

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16/30 Sand

Ben Thomas — Tue, 24 Mar 2026 15:27:22 +0000

Grantex 16/30 Sand is a coarse, well-graded aggregate used where permeability and coarse structural support are required, for instance behind metal plates, under support armour or adjacent to drainage channels. Coarser particles reduce fines migration and improve drainage performance, protecting joint seals and mechanisms.

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8/16 Sand

Ben Thomas — Tue, 24 Mar 2026 15:19:44 +0000

Grantex 8/16 Sand is a medium/coarse graded aggregate for use as compacted bedding and secondary backfill where moderate particle interlock and density are required. Typical uses include bedding beneath nosing plates, transitional backfill and zones that require robust compaction to reduce settlement.

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Green Granite (Washed)

Ben Thomas — Tue, 24 Mar 2026 15:16:51 +0000

Grantex Washed Green Granite 20mm is a coarse, washed chipping intended for structural backfill, drainage surrounds and load transfer zones adjacent to bridge joints. Washing removes fines, improving permeability and protecting seals from ingress of fines that compromise performance. Use where a coarse, durable layer is required to support plates, nosings or drainage runs.

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Green Granite

Ben Thomas — Tue, 24 Mar 2026 15:08:28 +0000

Grantex Green Granite 1–3mm is a crushed, angular fine aggregate for joint bedding, backfill directly adjacent to seals and for support under nosing units. Its angular particles deliver excellent mechanical interlock and in-place density, limiting movement and reducing the risk of washout beneath the seal. Suitable where high abrasion resistance and structural support are required next to joints.

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