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Who is ICL…?

Who is ICL…?. The Barro Group P/L. Adelaide Brighton Limited. 50%. 50%. Independent Cement & Lime P/L. 100%. 100%. 50%. Steel Cement P/L. Building Products Supplies P/L. Melbourne Cement Facilities (MCF). Australian Cement Industry Ownership Structure. Cement CO 2 e Profile

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Who is ICL…?

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  1. Who is ICL…? The Barro Group P/L Adelaide Brighton Limited 50% 50% Independent Cement & Lime P/L 100% 100% 50% Steel Cement P/L Building Products Supplies P/L Melbourne Cement Facilities (MCF)

  2. Australian Cement Industry Ownership Structure

  3. Cement CO2e Profile Sources of Greenhouse Gas Emissions in a Cement Plant electricity

  4. Cement: The Grim Reality • Portland Cement manufacture accounts for 5% of the worlds CO2 emissions and 3% of all green house gas emissions. • 1 tonne of cement = 800 – 1,000 kg of CO2 • International Carbon leakage is a real issue for Australian • industry. Unchecked this adds to the worlds CO2 problem. • Ground Slag and blended cement is an accepted industry • alternative to 100% clinker based cements. (AS3582.2 & ATIC’s SP43) • **statement is from Cement Industry Federation .. Quoted in Parliament of Australia senate committee ch.5**

  5. CO2 Emissions in Concrete

  6. SCM: SLAG • SLAG is a by-product of the iron manufacturing process • SLAG has been used in concrete in Australia since the early 1970’s and it’s usage has grown rapidly in recent years. • It is sold as a slag blended cement – Ecoblend • Total use of SLAG in concrete is around 0.9m tonnes annually.

  7. SCM: Fly Ash • Fly Ash has been used in concrete in Australia since the 1960’s • It’s hard and spherical particles ensure concrete is more plastic and workable • Sold separate from cement and blended directly into concrete as required.

  8. SCM: Silica Fume • Silica Fume is from manufacturing operations for silicon metal and ferrosilicon alloys • Around 100 times finer than Portland cement. • Used directly in concrete mainly for shotcrete, and may be used in special blended cements such as marine construction projects

  9. Where is SLAG from? • SLAG is a by-product of the iron manufacturing process • To become a cement alternative the slag needs to be granulated then milled • SLAG has been used in concrete in Australia since the early 1970’s and it’s usage has grown rapidly in recent years. • As a powder it is sold in neat form or as a slag blended cement – Ecoblend • Total use of SLAG in concrete is just over 1m t pa, nationally. (SCM’s 30%)

  10. Higher ultimate strengths Lower Heat of Hydration Workability enhanced Flexural Strength Gains Chloride ion & Sulphate resistance Lower Alkali Aggregate Reaction (AAR) Efficient hydration at higher strengths Technical Benefits of SLAG

  11. Environmental Benefits of SLAG • Use of Slag Cement in concrete reduces the environmental impact of concrete by; • Reducing Green House Gas Emissions by reducing the demand for clinker. • Reducing energy consumption. 1 Tonne of Slag requires circa 80% less energy to produce than a ton of Portland cement • Reducing the amount of raw quarried limestone extracted to make clinker

  12. GECA Certification

  13. Case Study: Bolte Bridge The Bolte Bridge is one of the largest balanced cantilever cast in situ box girder bridges in Australia. The superstructure is built as two independent bridges of variable depth, pre-stressed concrete box girders, separated by a 1.15m clear gap between the structures. ICL contributed to the construction of this iconic development through the supply of 549 truckloads of concrete. The mix was a blend of 35% Cement and 65% Granulated Blast Furnace Slag (GGBS), to ensure maximum durability of the concrete which was to be permanently submerged and to lower the core temperature of the concrete during hydration. Slag causes the core temperature to be reduced by 10-15 degrees Celsius when compared with straight GP mixes. The GGBS was also preferred to other materials such as Pozzolanic Fly Ash (PFA) due to the greater stability that it provided in the submerged marine environment.

  14. Case Study: CH2 House, Melbourne CBD • Melbourne City Council House 2 (also known as CH2), is an office building located in Melbourne’s CBD. It is Australia’s first 6 Green Star rated office building, designed by DesignInc and certified by the Green Building Council of Australia. • When compared with CH1the Environmental Benefits of CH2 include: • 85% less electricity • 87% less gas consumption • 87% less greenhouse gas emissions • CH2 provides a healthy and productive workplace for its occupants whilst reducing the building’s impact on the environment through excellence in design and innovation.

  15. Case Study: Victorian Desalination Plant • The Victorian Desalination Plant is located in Dalyston, on the Bass Coast in Southern Victoria. • The VDP provides a rainfall independent water supply to Melbourne, Geelong and some regional areas to supplement the existing catchments if required. It can produce high quality water whenever required and its key components have a design life of 100 years, making it a resource that will be a great value in times of future drought. • ICL supplied the development 60,000 Tonnes of GP Cement and 30,000 Tonnes of SLAG.

  16. Case Study: Mount Mercer Wind Farm The Mount Mercer Wind Farm is expected to generate approximately 395,000 megawatt hours (MWh) of electricity each year which could provide enough renewable energy to power the city of Ballarat. ICL, through client Eureka Concrete, supplied 9,000 Tonnes of 70/30 Fly Ash blend cement for the concrete used in this project. The tower bases required mass concrete pours, the 70/30 Fly Ash binder combination was chosen to reduce the heat of hydration of the concrete. High heat of hydration can cause Delayed Ettringite Formation (DEF) and thermal cracking. The use of the high Fly Ash blend reduced the risk of DEF and thermal cracking.

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