Orange - Navigating the Circular Economy

• The lifecycle of a rock from extraction to transport to construction,to use and reuse, the 360 story of Tarmac. Our circular journey, demonstrates the expertise, futurefocus, impact and opportunity that Tarmac has in creating a sustainablebuilt environment.

• Examples of Tarmac's circular solutions; digital waste tracking, soil stabilisation, cement coprocessing or a whole project solution demonstrating how Tarmac are a net user of waste and can use their expertise to create the same value on any construction project.

• The futureis clear for Tarmac and the circular economy, buildingsas material banks, Roads the quarries of the future, Circular supplychains.

Emma Hines, Sustainability Director (emma.hines@tarmac.com)

Hannah Haeffner, National Landfill & Recycling Manager (hannah.haeffner@tarmac.com)

Solutions revolution Navigating the circular economy

Emma Hines & Hannah Haeffner

Introduction Emma Hines

Alifetime commitment

Wasteresourceservices Hannah

Haeffner

The stats

tonnes of CD&E waste generated in the UK

of aggregates used for construction in the UK comes from recycled and secondary sources

138 million 28% 15% 43%

A site waste management plan can reduce on-site waste by up to which translates to less waste heading to landfill.

13%

of all construction waste is new, unusedmaterial.

Digitaltransformation

Theworld of waste is changing

New UK mandatory digital waste tracking will changehow businesses operate.

Tracking and utilising our waste is already helpingto inform our strategies on future resources...

Waste X Resource

inthewrongplace

Waste or RESOURCE can be looped round and back into that supplychain

Waste or RESOURCE

Digital wastetracking

• UK government commitment to provide a comprehensive way to see what is happening to the waste produced in the UK and maximise the value of it

• Support the DoC and regulation but also the Circular Economy

• Untapped resources that we didn't monitor before across the UK

• We've started to track our own waste and utilise this internally

• Huge opportunity for our industry to be a real leader in waste recycling but it will only be possible if we come together to share technologies and best practice

.

Soilstabilisation Hannah Haeffner

Cementcoprocessing Emma Hines

What are alternative fuels?

Tarmacprocess arangeoffuels

Solid Recovered Fuel (SRF) is the most widely used alternative fuel in the UK cement industry. Waste Biomass content varies, however, Sapphire work with SRF producers to enhance the biomass percentage in their inputs.

Tyres are classified as a partial Biomass fuel, however, due to competing alternatives their usage in cement manufacture is reducing year on year.

Recycled Liquid Fuel (RLF) does not contain any Biomass content currently, however, RLF suppliers are now beginning to offer material that does contain Biomass.

Sapphire manage a 15 year Processed Sewage Pellet (PSP) contract that supplies both Dunbar and a Lafarge kiln. This is a 100% waste Biomass AF that was contracted in 2011 predominantly for the CO2 savings it would bring.

The processing of Alternative Fuels achieves:

• A reduction waste going to landfill – where it would decompose to release CH4 (methane) which is a very powerful greenhouse gas

• A reduced dependency on fossil fuels and the cost associated

• Reduced carbon emissions – many alternative fuels contain waste biomass

• Reduced input materials – in some cases the fuels contain substances that the cement chemistry requires.

Why?

Future Focus

• Tarmac have just installed and commissioned a£15M “chlorinebypass”at their Tunstead Plant

• Elevated levelsof chlorine in the cementkiln is a consequenceofprocessing SolidRecoveredFuel and it can cause solidbuildup in the plant and operation problems