Copy

OCTOBER 2018

WAYS TO STABILISE RIVERS BEST GABION ROCK INFILL MATERIALS
TYPES OF GABION RETAINING WALLS MOVERS & SHAKERS
OUR SKILLED INSTALLERS LIST  CONTACT DETAILS
WAYS TO STABILISE RIVERS
 
Gabions, in their many forms, such as baskets and mattresses, and their sausage and allied configurations, have been with us for a long time, and for good reason. They remain one of the most successful intervention and prevention measures to counter factors like soil erosion. They also perform exceptionally well as retaining systems in a variety of applications, from road embankments to marine coastal protection, rivers and weirs.
 
“A key benefit of gabion installations is the way they blend in with the environment, because an essential ingredient is their natural rock composition, which intentionally lends itself to some level of permeability, in conjunction with geotextiles that are there to counter soil retention loss,” explains Louis Cheyne, managing director of Gabion Baskets and a qualified construction materials specialist.
 
“The alternative is to go the mass concrete route for structures like weirs and irrigation channels. However, this will result in a much higher construction cost since specialist equipment and tradesmen will be required. Gabions, on the other hand, are perfect for labour-intensive applications under the guidance of an experienced consulting engineer and contractor.
 
In addition to being a manufacturer of gabion
products and solutions, Gabion Baskets provides design recommendations and on-site training for installation teams, many of whom are sourced from local communities and have limited initial skills. However, after they’ve completed the training and applied this in practice, Cheyne says that these community members are then well prepared to work on other short-term projects, which could potentially serve as a launching point for SMME subcontractor businesses.
BEST GABION ROCK INFILL MATERIALS

When it comes to selecting the materials used to fill gabion baskets or mattresses, non-negotiable rules apply in terms of rock hardness and quality.
 
“It might surprise some, but a few years back on a remote rural wetlands project, I experienced a situation where broken brick discards from a local manufacturer were being included in the rock mix to reduce material cost - definitely not the right approach,” says Louis Cheyne.  “Unless fired very hard and blue, which was not the case there, these non-fired and rejected bricks will dissolve in a few weeks. Even sandstone or shale materials are too porous. In all cases, you have to use selected shot rock, such as dolerite or basalt.”
 
In situ river rocks should also never be used: first, because of their rounded shape, which prevents the effective interlock required for gabion designs – i.e. controlled porosity – and, second, because it contravenes environmental legislation.
 
This example illustrates that gabion designs and their installation are an exact science within the highly innovative field of environmental engineering.
TYPES OF GABION RETAINING WALLS

It’s always good to know the difference between the types of retaining walls to ensure that the product you are looking for meets your exact requirements, here, we give you a breakdown of the different types of retaining walls Gabion Baskets offers:
 
MASS-GRAVITY GABION RETAINING WALL (DRY)
This wall is used in situations where the embankment is unstable and has no founding in a river – i.e. where a river mattress might be required.
 
MASS-GRAVITY GABION RETAINING WALL (WET)
This structure is typically founded in a river. A flexible river mattress apron is required to prevent scour at the toe of the gabion wall, especially if the structure is founded on soft river sand.
 
SKIN REVETMENT GABION WALL
This wall is used where the embankment stability is safe. This wall type is used to prevent shallow-slope failures, plus rock falling out of the slope.
 
GABION MASS-GRAVITY CATCH WALL
This option is designed to catch rocks or soil falling out of the embankment.
 
GABION VERTICAL-FACED MASS-GRAVITY WALL
A vertical-faced gabion retaining wall is used in an area where limited spacing is available.
 
TERRACED GABION WALL
Popular for playgrounds and sports fields, a small terrace can be erected using garden gabions to make the slope of the land flatter.
MOVERS & SHAKERS

Gabion Baskets is pleased to announce that Clinton Cheyne will be relocating to Cape Town to manage and oversee the full running of our Cape Town branch. The change will be effective end September 2018.
 
We wish Clint well with his new challenge and new and old customers can look forward to meeting him in the region in the near future.
OUR SKILLED INSTALLERS LIST:

Ronnie Dagnin – Johannesburg - 082 8551447
Christo Van Niekerk – Durban - 076-3131693
Carl Gous – Cape Town – 082-8203883
For further reading – see our latest article published in IEMSA
CONTACT DETAILS:
  

Head Office
Tel: +27 11 8825788
or 0861 Gabion (422466)
Fax: +27 11 882 5804
or 011 882 5804
Cell: +27 71 680 4236
Email: mail@gabionbaskets.co.za
 
Physical Address:
Unit A3, 24 Brighton Road, Lombardy West, 2090, Johannesburg

Postal Address:
P.O.Box 174, Randpark Ridge, 2156
Our office hours are,
Monday to Thursday,
8h00 until 16h30,
Friday 08h00 until 15h30.
 
Kwazulu Natal
Brenda Fourie - Branch Manager
+27 79 723 6794
 
Pinetown Office
Tel: +27 31 700 2695
Cell: +27 79 723 6794
Email: brenda@gabionbaskets.co.za or
salesdbn@gabionbaskets.co.za
 
Northern & Western Cape

Clinton Cheyne - Technical and sales
clint@gabionbaskets.co.za
Cell: +27 83 988 5154

Carl Gous - Sales, Technical and Installations
carl@gabionbaskets.co.za
Cell: +27 82 820 3883
Feel free to share our newsletter with your friend and colleagues.
Facebook
Twitter
LinkedIn
Website
YouTube
Pinterest
Copyright © 2018 Gabion Basket, All rights reserved.
You are receiving this email because you are either a current client or has been involved with us in the past


Our mailing address is:
sales@gabionbaskets.co.za

Want to change how you receive these emails?
You can update your preferences or unsubscribe from this list.

DESIGNED & LAYOUT: X-AXIS CC






This email was sent to <<Email>>
why did I get this?    unsubscribe from this list    update subscription preferences
Gabion Baskets · Unit A3, 24 Brighton Road, Lombardy West · Johannesburg, Gauteng 2090 · South Africa

Email Marketing Powered by Mailchimp