INTRODUCTION
Turning waste "Fly Ash" into usable raw material in the building sector and other industries
Building on our hard-earned reputation for innovative and responsible management of HCRW, Tshenolo Waste is constantly on the look-out for new opportunities to reduce hazards to people and the environment. At the same time, we’re motivated by the challenge of providing sustainable business solutions to our clients and adding value at every stage of the waste management lifecycle.
Our track-record of safety, accountability and creativity makes Tshenolo Waste highly qualified to enter the fly ash beneficiation arena through our subsidiary company, Tshenolo Ash & Mineral Resources (TAMR).
Our Mission
To find holistic, profitable and sustainable ways to address the challenges associated with fly ash creation, and to unlock its inherent value and utility as a cost-effective, ecologically sound construction material that can make a real and lasting contribution to our built and natural environments.
Our Vision
Greener, cleaner generation of essential electricity supplies through the efficient, safe and long-term management of waste products created by coal-fired power stations, with fly ash assisting in the rebuilding and renewal of South Africa to the benefit of all citizens.
WHAT IS FLY ASH?
Eskom’s portfolio of coal-fired power stations generates over 36 million tonnes of fly ash every year – that’s over 500kg for every man, woman and child in South Africa. Fly ash is the fine powder that’s produced when pulverized coal is burnt to generate the power our nation needs.
During power generation, it’s captured by electrostatic precipitators or particle filtration equipment before it can be released into the environment.
As a siliceous and aluminous material, unprocessed fly ash is potentially hazardous. However, as a pozzolan, it has useful properties that make it an excellent blender. Mixed with lime and water, fly ash becomes a cementitious product with similar properties to Portland cement – the world’s most useful construction material.
AMR specialises in the beneficiation of fly ash – that is, increasing its economic value – by transforming it into a non-hazardous, useful substance for construction, mine rehabilitation or even agricultural products.
Whereas previously, fly ash was stored as a waste product on site, or buried in landfill facilities, TAMR is able to give it a second, useful life. Fly ash can be used to entirely or partially replace Portland cement in concrete production for major construction projects.
The concrete mix design uses high volume fly ash to replace 60 – 100% of the cement requirement. The exact proportions depend on the quality of the ash, and its reactivity and particle size, among other factors.
FLY ASH CONCRETE - THE ADVANTAGES
Fly ash has multiple advantages:
Versatility
In addition to concrete, fly ash can be used to manufacture bricks, mosaic tiles and hollow blocks, for building embankments and dams, soil stabilisation, and the conversion of sewage sludge into biofuel or organic fertiliser.
Economy & Durability
Fly ash is cheaper than Portland cement, and can directly contribute to reduced project costs and concrete produced from fly ash is significantly more durable and surpasses the stipulations set in SANS 10100 and SANS 50197-1 2014.
Ecologically sound
Production of fly ash concrete releases much lower amounts of greenhouse gases than Portland cement production.
Community development
Fly ash concrete can be used to produce road stabiliser, road base, sub-base, surface overlay, mixed oversized fly ash and bottom ash for structural backfill, mixed oversized fly ash and bottom ash as an anti-skid material, concrete for building, paving, blocks, kerbs, culverts, and concrete flags, land-filling, mine back-filling and precast concrete (railway sleepers, electric poles, building and paving blocks, concrete flags and shotcrete).
Environmental Benefits of Fly Ash
At Tshenolo Ash & Mineral Residue (TAMR), we’re always mindful of the environmental consequences of our actions – and we focus on helping our clients and stakeholders reduce their ecological impact.
Overall, fly ash concrete is a greener product than the Portland cement concretes it can replace. And when you can save the planet and save money at the time, the answer is clear: fly ash concrete from TAMR.
Economic benefits of Fly Ash
READ MOREBy using fly ash to produce cement and concrete, multiple economic benefits can be realised. These begin with savings for the generator (such as Eskom) who no longer has to store unused fly ash. In addition, the generator gains new applications and valuable innovations to add to their business value proposition.
While costs will be incurred in transporting the fly ash to the cement plant, these can be managed through avoiding break-of-bulk points and kept well below the alternative storage costs.
The costs of adapting the cement plant to use fly ash and acquiring the necessary technical expertise are soon paid back through savings on the purchase of Portland cement, and the lower financial burden incurred in managing reduced greenhouse gas emissions. This can result in a reduction in the generator’s greenhouse gas emission and carbon tax burden.
While costs will be incurred in transporting the fly ash to the cement plant, these can be managed through avoiding break-of-bulk points and kept well below the alternative storage costs.
The costs of adapting the cement plant to use fly ash and acquiring the necessary technical expertise are soon paid back through savings on the purchase of Portland cement, and the lower financial burden incurred in managing reduced greenhouse gas emissions. This can result in a reduction in the generator’s greenhouse gas emission and carbon tax burden.
The economic benefits of substituting fly ash for Portland cement increase in proportion to the magnitude of the project – especially when you consider that the cost of concrete mix can be reduced by up to 60% when fly ash is used as an additive.
Because fly ash is easier to use in cold temperatures, delays to projects caused by winter weather can be largely avoided – and keeping construction projects on schedule is a proven way to save money.
Concrete produced from fly ash tens to be less prone to cracking, which means a longer life and reduced maintenance costs and lifetime expenses. The creation of a viable fly ash industry has the potential to bring marginalised communities into economic activity and contribute to valuable skills development.
Because fly ash is easier to use in cold temperatures, delays to projects caused by winter weather can be largely avoided – and keeping construction projects on schedule is a proven way to save money.
Concrete produced from fly ash tens to be less prone to cracking, which means a longer life and reduced maintenance costs and lifetime expenses. The creation of a viable fly ash industry has the potential to bring marginalised communities into economic activity and contribute to valuable skills development.
We are hiring!
We are looking to hire a Project Manager who will be responsible for the planning, co-ordinating and managing of all business operations of the Fly Ash Project that Tshenolo Ash Mineral Resources (TAMR) is undertaking for a period of 10 years.
We are hiring!
We are looking to hire a Project Manager who will be responsible for the planning, co-ordinating and managing of all business operations of the Fly Ash Project that Tshenolo Ash Mineral Resources (TAMR) is undertaking for a period of 10 years.
Get in touch with us!
With a presence right across South Africa, we’re always within easy reach for new and existing clients.
Headquarters:
25 Amelia Lane, Lanseria Corporate Estate, Lanseria Extension 45 T: 011 019 4800
WhatsApp: 060 968 2912
E: talktous@tamr.co.za
25 Amelia Lane, Lanseria Corporate Estate, Lanseria Extension 45 T: 011 019 4800
WhatsApp: 060 968 2912
E: talktous@tamr.co.za
Northern Cape
44 Lennox Street,
Kimberley,
8301
T: 053 832 1335
F: 086 679 7767
E: reception.kimberley@tamr.co.za
44 Lennox Street,
Kimberley,
8301
T: 053 832 1335
F: 086 679 7767
E: reception.kimberley@tamr.co.za
Western Cape
410 Voortrekker Road, Unit 6 Prestige Park,
Maitland, 1421 T: 021 510 1421
F: 086 679 7773
E: admin.capetown@tamr.co.za
410 Voortrekker Road, Unit 6 Prestige Park,
Maitland, 1421 T: 021 510 1421
F: 086 679 7773
E: admin.capetown@tamr.co.za