DESCRIPTION
Permacrib is a structurally engineered walling system, utilising the long established gravity wall concept. The patented lightweight interlocking crib components form a series of open cell modules. These are then filled with well graded stone to create the mass required to counteract the earth pressures and surcharge loadings. Structural integrity is achieved through the interaction of the crib elements and the granular infill.
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APPLICATION
From simple landscaped walls to major civil engineering retaining structures. Permacrib can also be used to create free standing vertical sound barriers.
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Christchurch, New Zealand
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COMPOSITION & MANUFACTURE
Permacrib is manufactured in New Zealand from selected Radiata Pine softwood from managed, cultivated, renewable forest resources. Manufacturing is carried out to an approved Q.A. system ensuring a high level of dimensional accuracy. All machining is completed before treatment.
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Permacrib Packs
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DURABILITY
All components are pressure treated to NZTPA H5, ASI604,BS5589 PCA and AWPA CI986 using CCA preservatives. Complete wood cell penetration is achieved giving full protection from termite and fungal attack. Tests have shown that an “in ground” service life in excess of 125 years can be expected. All Permacrib components carry a 50 year guarantee against decay and termite attack.
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ECONOMICAL & FLEXIBLE DESIGN
Design versatility of the 7 readily available models enables header sizes to be mixed within the same structure for maximum economy or in major structures double or triple skin walls can be created for maximum support. Face profiles can be varied to create shapes and form benches to assist landscaping and enhance architectural appeal.
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Cheltenham, UK
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COMPOSITE DESIGN
Permacrib can be used to provide a landscaped and aesthetically pleasing face to reinforced earth, anchored or soil structures. It can also act as a facing to sheet piling or concrete retaining walls.
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CONSTRUCTION
Permacrib is very simple to construct – pre fabricated components interlock to create the crib cell modules.
DELIVERY
Permacrib is delivered to site in either standard component packs or in special packs tailored to suit particular structures or construction sequence requirements.
TECHNICAL APPROVAL
Developed in New Zealand, Permacrib is approved by the British Board of Agreement. (BBA Certificate No (95/3115 issued in 1995)
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