1. Formwork

  • Two symmetrical steel shells
  • No base plates required
  • Fast operation with only two labors up to 20 m³ units
  • Quick bolting system for assembly and stripping of the two shells
  • Wheels reduce the use of handling equipment

2. Concrete strength specifications

The compression values given below are those for cylinders. 
The following relation should be used to determine equivalent values for cubes: Fck Cylinder = 0.8 x Fck Cube (ref. BS 1881)

ACCROPODE™ & ACCROPODE™ II Units ≤ 4 m³ 5 m³≤ Units ≤ 15 m³ Units  > 15 m³
Minimum strength for form stripping Fck Cyl  6 MPa  7 MPa  10 MPa
Minimum strength for handling the unit Fck Cyl 15 MPa  20 MPa  25 MPa
Minimum strength for placing he units Fck Cyl  25 MPa  30 MPa  30 MPa

3. Casting

Minimun area required to store one formwork: 1.55H² 
where H = ACCROPODE™ II unit height

Typical daily standard production rate: 1 unit per mould
Depending on the Contractor's selected methods, the rate of 2 units per mould per day can be achieved

4. Handling and storing

  • Forklifting is effective for handling small to medium size units
  • Large units are handled by sling
  • Units can be stored one on top of the other or nested on one or more levels, provided that ground conditions are suitable

Minimum area required to store 10 units on one level : 7.1H²
where H = ACCROPODE™ II unit height

5. Fast placement

Principle: each unit is placed in a random attitude to obtain the specified packing density, using GPS.  The positioning principle is based on a predetermined grid aimed at achieving optimum keying of the units, with the theoretical grid shown on the placement drawings and allowing reliable QA/QC procedures.

Placement rates (using cable cranes) - Monthly average

Units sizes Average placing time per unit
Small sizes 4 to 6 mins
Medium sizes 7 to 10 mins
Large sizes 10 to 20 mins

The new ACCROPODE™ II shape enables units to be placed much more rapidly using simple rules, since the random attitude of each unit  is naturally obtained.

Higher rates can be obtained using a tailored method