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Retaining Solutions Rocket Walls

Precast Concrete Rocket Walls®

Want to store a greater amount of material in the same floor space? Our patented Rocket Wall® unit can be rapidly installed to form storage bunkers and bays. Its unique inverted ‘Y’ profile means there is no ‘toe’ for the loading shovel to hit and prevents the lodging of stored material.

2.4m Unit Screw Bolt Requirements

Whether loading one side or both sides of Rocket Wall® the following screw bolts will be required for each unit:

Height (m) 2.4 unit 2.4 corner
Screw bolts required (no) 4 2
Diameter (mm) 16 16
Length (mm) 200 200
Length in foundation (mm) 100 100

3.0m Unit Screw Bolt Requirements

Whether loading one side or both sides of Rocket Wall® the following screw bolts will be required for each unit

Height (m) 3.0 unit 3.0 corner
Screw bolts required (no) 6 2
Diameter (mm) 16 16
Length (mm) 200 200
Length in foundation (mm) 100 100

Bell & Webster Rocket Wall® units are available in heights of 2.4m and 3.0m, with nominal weights of 1.25t and 1.85t respectively.

Guidelines for offloading

Units should be offloaded and stacked upon timber bearers as shown in Figure 1. Offloading and installation should be carried out in this position using Option 1 or Option 2.

Guidelines for installation

1. Position, line and level wall units on continuous mortar bed both sides. Strike mortar off flush.

2. Drill 4 no. 16mm diameter holes 132mm deep into base slab, using holes in unit as pilots.

3. Insert 16mm screw bolts with plate washer into each hole then tighten to 100N/m torque.

4. Using non-shrink mortar and a trowel fill recess and strike off flush.

5. Leave to cure for a minimum of 48 hours before loading.

4.0m units are available on request.

Technical Specifications
Design parameters Generally designed to BS8110 and BS8002, Rocket Wall units are individually wet cast in bespoke steel moulds and subjected to accelerated curing. The units are individually designed to retain granular material with a density not
exceeding 16 kN/m3 with an angle of repose of 35º. A 10 kN/m2 surcharge can be allowed for on a level filled wall or, alternatively, the retained material may be sloped at an angle of 30º.
Unit constituent Concrete, at a minimum 40mm cover to rebar, embedded in C45 concrete.
Surface finish Front face and sides are ex steel mould – ‘Type A’ to Cl. 6.2.7.3 of BS 8110. Top surface (as cast) trowelled smooth with a steel float – type 3U.

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