Tarmac alternative is made from plant seeds

07/06/2012
Highways Reporters

A new surfacing alternative to tarmac has been launched made with plant seeds used to treat constipation.

The new material uses seed husks from the desert plant Psyllium (pictured) to form an alternative to tar-bound macadam for surfacing paths, cycleways and hard standing areas.

The powdered husks are mixed with water to form a gel that binds aggregate and produces a hard-wearing surface.

The binder was developed in America under the Stabilizer brand and the licence for marketing it in the UK has been
granted to Stabilizer UK Limited – a new division set up by North Wales based environmental and landscape engineers
Richards, Moorehead & Laing (RML).

RML managing director Ivor Richards said: “Psyllium seed husks have remarkable properties as an engineering
material and have been used for more than 20 years in more than 200,000 projects worldwide.

“Aggregate bound with Stabilizer is competitive on cost with macadam, has far superior environmental credentials and out-performs it in a wide range of non-highway applications, particularly as a result of its ease of application, cleanliness and free draining nature.

“We have seen excellent results using it with a variety of aggregates from dust to 6mm and are working towards BBA
(British Board of Agrément) certification. We are also looking at the possibility of using it with slate waste.”

When watered, it forms a gel and hardens in three days, when it can be used for pedestrian, cycle and light vehicle traffic.

As an added bonus, contractors’ machinery and tools do not need cleaning after use.

 
Highways jobs

Project Engineer

Via
Competitive Salary
Via currently has fantastic permanent and fixed-term opportunities to join our Major Projects & Improvements Team as a Project Engineer Nottingham, Nottinghamshire
Recruiter: Via

Lead Project Manager

Via
Competitive Salary
Via currently has a fantastic opportunity to join our Major Projects & Improvements Team as a Lead Project Manager Nottingham, Nottinghamshire
Recruiter: Via

Highway Improvements Officer

Via
Competitive Salary
Via currently has fantastic opportunity to join our Major Projects and Improvements Team. Nottingham, Nottinghamshire
Recruiter: Via

Park Ranger

Royal Borough of Greenwich
£21.591 - £21.981
This is an exciting opportunity to be part of a dynamic team of staff responsible for the security, cleanliness and general maintenance and... Greenwich, London (Greater)
Recruiter: Royal Borough of Greenwich

Senior Structures Engineer

Kent County Council
£33,678 per annum
We are looking to recruit a Senior Structures Engineer to provide engineering support for maintenance of highway structures, liaising and... Kent
Recruiter: Kent County Council

Contracts and Strategy Manager

Royal Borough of Greenwich
£42684 - £45585 per annum
The Directorate of Communities & Environment prides itself on the service it provides to the residents of Royal Greenwich. We are looking to recruit s England, London, Greenwich
Recruiter: Royal Borough of Greenwich

Regeneration Delivery Manager - Heritage Action Zone

Royal Borough of Greenwich
£42684 - £45585 per annum
(Fixed Term Opportunity until March 2024)Woolwich town is undergoing a period of intensive regeneration with huge investment in new housing, transport England, London, Woolwich
Recruiter: Royal Borough of Greenwich

Senior Local Engineer

Birmingham City Council
£27,741 - £34,728
The Senior Local Engineer role is to provide technical service at senior level to Local Engineering teams Birmingham, West Midlands
Recruiter: Birmingham City Council

Traffic & Transportation Engineer

Conwy County Borough Council
£41,881 - £44,863 per annum
You should have a degree or diploma in civil engineering or other relevant discipline, and extensive experience in... North Wales
Recruiter: Conwy County Borough Council

Principal Development Co-ordinator

Gloucestershire County Council
£33,799.00 - £38,813.00 + 12% MRS
Leading on the review of Major Development Proposals. Gloucester, Gloucestershire
Recruiter: Gloucestershire County Council

Highways Development Management (HDM) Manager

Gloucestershire County Council
£53,445.00 - £58,008.00 + MRS
To oversee all aspects of Highways Development Management from pre application discussions to road adoption. Gloucester, Gloucestershire
Recruiter: Gloucestershire County Council

Principal Development Engineer

Gloucestershire County Council
£33,799.00 - £38,813.00 + 12% MRS
You will be responsible for undertaking design audit of third party developer works under Section 38 and 278 of the Highways Act 1980. Gloucester, Gloucestershire
Recruiter: Gloucestershire County Council

Director of Environment

Southwark London Borough Council
Up to £136,000
A fairer future for all A fairer future for all Southwark, London (Greater)
Recruiter: Southwark London Borough Council

Director of Public Health

Southwark London Borough Council
Up to £136,000
A fairer future for all Southwark, London (Greater)
Recruiter: Southwark London Borough Council

Parks Development Officer

Kirklees Metropolitan Council
£26,999 - £29,636 per annum
You will work with community groups, organisations, ward members, residents and colleagues in order to... Kirklees, West Yorkshire
Recruiter: Kirklees Metropolitan Council

Head of Infrastructure & Facilities

East Riding of Yorkshire Council
circa 100k
We are seeking a Head of Infrastructure & Facilities to lead the strategic management of the service in a unique and exciting opportunity for a... Beverley, East Riding of Yorkshire
Recruiter: East Riding of Yorkshire Council

Senior Professional and Technical Officer – Project Manager

Bristol City Council
£32,910 - £34,728
We are seeking to appoint a Project Manager, to work in the Transport Service, to help support the delivery of the above plans. Bristol
Recruiter: Bristol City Council

Skilled Road Worker (TRR)

London Borough of Richmond upon Thames and London Borough of Wandsworth
£26,025 - £31,536 depending on knowledge, skills and experience
Do you want to be part of a supportive team and use an innovative method of working on the highway? London (Greater)
Recruiter: London Borough of Richmond upon Thames and London Borough of Wandsworth

Executive Officer

London Borough of Richmond upon Thames and London Borough of Wandsworth
£26,025 - £34,479 depending on skills
Are you looking for an opportunity within a friendly and supporting team? London (Greater)
Recruiter: London Borough of Richmond upon Thames and London Borough of Wandsworth

Assistant Director of Transport & Sustainability

Royal Borough of Greenwich
£93,098 - £102,841
This dynamic role will see you provide strategic leadership to our transport strategy Greenwich, London (Greater)
Recruiter: Royal Borough of Greenwich

Highways on Fridays

Register now!

Latest Issue

latest magazine issue
  • Shell celebrates 100 years of bitumen
  • Why we need to be more strategic about safety
  • Major reforms aim to close cycling gap
View the latest issue

Latest Video