HYSON-CELLS

Application and method

Estimated installed cost

Estimated installed cost

S A Rand

US Dollars

unit

Layered walls (Layer depth 100 mm to 250 mm)

Hyson Cells

any in-situ fill material may be used including sand / clay / mine waste. Mechanically filled & compacted to 80% It is not a problem if layers get saturated

R110

to

R134

$18

to

$22

/ m³

Concrete blocks with strapping

Selected backfill is needed and the works must be kept dry. Fill is compacted to 90%. Slow labour based construction.

R175

to

R250

$29

to

$42

/ m³

Thick black plastic geocells

Similar in function to Hyson Cells but more expensive. Much smaller packs so more installation labour.

R145

to

R185

$24

to

$31

/ m³

Bulk walls (Depth 250 mm to 10 metres)

Hyson Cells

Uses selected fills with no clay. Fine sand or ash, crusher runs and mine tailings are all suitable. Standard packs available 250 mm deep to 4 metres deep. Specials to 10 m deep. Long life with no rust or rot problems.

R79

to

R169

$13

to

$28

/ m³

Wire basket gabions and Reno mattresses

R220

to

R250

$37

to

$42

/ m³

Hand packed with stone. 250 mm to 300 mm for Reno mattresses. Labour intensive.

Cast concrete walls

R295

to

R350

$49

to

$58

/ m³

Need shuttering and selected materials. Slow

Reinforced concrete facings tied back with straps

R250

to

R395

$42

to

$66

/ m³

Tied back into selected backfill. Panels 500 mm to 2 metre high. Special equipment used to place panels.

Woven and non-woven folded geotextiles

R150

to

R220

$25

to

$37

/ m³

The geotextile is folded and filled with backfill. Used for walls 250 mm to 1 metre high. Face needs protecting from UV and against animals.

Weld mesh and woven geotextile

R175

to

R220

$29

to

$37

/ m³

Potential problems are rust and UV damage

Plastic grids and non-woven geotextile

R145

to

R250

$24

to

$42

/ m³

Used for walls 250 mm high to 3 metres high. Needs selected backfill. Protect against UV .

Contact us at info@hysoncells.co.za