Leca UK
Stand A5
Documents
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25 Ways of LECA25 ways of Leca" is a book that describes the opportunities you as a customer have to strengthen your business with our innovative solutions, within traditional construction, infrastructure, rainwater management and drinking and wastewater treatment. "This is what you use in potted plants" is a common mention of Leca® lightweight aggregate, but the product can be used in many other contexts - and with good results as a result. The book is for inspiration, and the possibilities for use are many more than those mentioned. Limited only by imagination. Happy reading. We look forward to hearing about your project in the future - together we build for the future.
Products
LECA 10-20mm Lightweight Fill
Solutions
Leca® LWA has been used extensively in structural and geotechnical projects for over 60 years for lightening road and railway embankments, insulating and filling of swimming pool surrounds, reducing pressure within quay extensions, lightweight fill in foundations and behind retaining walls, general load compensation, insulating and lightening pipelines, lightening the load over tunnels and bridge development.
Primary Properties
• 85%* less bulk density
• 75%* reduction of horizontal earth pressure to retaining structures
• Reduced settlement periods and increased stability
• Superb insulating and free drainage properties
• Resistant to extreme temperatures, moisture and chemical attack
• 100% inert and contains no harmful substances or gases
• Requires less vehicles for delivery – up to 70m³ per load
• Speed of site installation – up to 16 times faster production*
* on average when compared to traditional fills
Videos
Murrayfield Revisited - LECA Lightweight Fill
Rugby fans will alight from the Edinburgh tramway system right outside the hallowed gates of the famous Murrayfield Stadium, home of Scottish Rugby, thanks to the advantageous properties of Leca® LWA. The tram stop is a key part of the new inner city tramway linking Edinburgh airport with the heart of the City.
GRAHAM Construction, responsible for the creation of the Murrayfield tram stop as part of the Edinburgh Trams Project, faced challenges on the project not least of all the ability to raise the structure seven metres above the existing ground level. Normal traditional fill would have imposed severe overburden threatening the stability of the existing Network Rail line and other established buildings.
Consulting engineers to this project, Parsons Brinkerhoff, determined that the replacement of traditional fills with Leca® LWA was the preferred option to overcome bearing and settlement issues associate with the soft ground conditions underlying the site. Tristan Morgan, Geotechnical Engineer at Parsons Brinkerhoff, said: “One of our main issues was to get such a large earthworks structure founded within the underlying soft ground conditions without significant ground improvement being undertaken. The light weight attributes of the Leca® LWA satisfied these criteria, with significantly lowering bearing/settlement at formation compared to traditional fills. It also interacted with the Tensar elements of the structure without difficulty.”
A Tensar Geogrid wall system in conjunction with Leca® LWA was designed and subsequently constructed to raise the ground level and form the platform surfaces.
The Kelpies Revisited 2022 (The Helix Regeneration)
The Kelpies Revisited: The Helix project in Falkirk transformed a tired and lifeless environment into one of the most expansive and attractive community locations in Europe. It was named Best Environment Project at the National Lottery Awards.
Over 2000m3 of LECA® Lightweight Aggregate (LWA) was installed below the surface - enabling construction access and land raising directly over a Scottish Water fresh water trunk main. The specification of LECA® LWA avoided substantial additional costs that would have arisen from the rerouting of Scottish Water’s assets.