Reduces pollution and landfill
Celtic Cement Technology helps reduce industrial pollution and recycles industrial waste.
It is becoming increasingly important to minimise the amount of waste going to Landfill and find alternative uses for these materials. The cost of recycling aggregates tend be higher than natural aggregates, therefore, to justify recycling industrial by-products there must be environmental, technical and economical advantages. Celtic Cement Technology provides a means by which materials which would normally be dumped in a landfill site can be re-used to form economically produced cement replacements in an environmentally freindly process.
In Europe no one appears to commit to the difference between by-products and waste, it as been quoted that a by-product must be a material that has been produced with a specific use and have a specific timescale for its use. We are of our own opinion that a waste is any material that if an alternative use can be found, with beneficial properties then this should be classed as a by-product.
Several industrial by-products which are currently being landfilled or stockpiled are capable, after a minimum of thermal treatment grinding and blending in pre-determined proportions are capable of replacing up to 50% of portland cement when producing concrete.
We have found that modified cements can be formulated which exhibit better high early strengths (7-day) than comparable materials formed from Ground Granulated Blast Furnace Slag (GGBS) or Pulverised Fuel Ash (PFA). These modified cements are shown to be acceptable in terms of commonly used characterisation parameters quoted in the BS EN196 series.
In order to maximise the use of industrial by-products in cement and concrete an understanding of all the characteristics of each raw material is required. It is essential that each material is tested in accordance with current standards to establish the short, medium and long term effects in concrete structures.
The extensive testing and analysis that forms the basis of Celtic Cement Technology shows that many industrial by-products can be used as cement substitutes with minimal green house gas emissions and with low energy consumption. The tests carried out include chemical analyses for elemental composition using XRF, chemical compounds by XRD and particle size analysis (PSA), as well as measurements of compressive strength in mortar.
Latest news
Cenin Cement Moves to Stormy Down
Our sister company Cenin Cement has moved its research and production facilities to a new location on a recycled aerodrome site near Bridgend, where manufacturing of Cenin Cement, using Celtic Cement Technology has begun.
Cenin Cement 'Climate Change Impact Assessment' Report published
Read more about the environmental benefits of our cement replacements and how we are helping reduce the cabon footprint of cement manufacturing.
Cenin wins first prize:
Best Presentation at the Global Slag Conference
We are pleased to announce that our technical paper and presentation was awarded 'best presentation' at the recent Global Slag Conference in Istanbul Turkey. Papers were presented to an audience of 140 delegates from 31 countries and ours was singled out from 11 other technical papers.
Older News:
Global Slag Conference
November 2007
We presented a paper at the Global Slag Conference in Istanbul, Turkey 19 - 20 November. We demonstrated how Celtic Cement Technology can improve both the properties of slag cement and its environmental impact.
Patent Approval
August 2007
After fifteen years of detailed research and thorough testing the patent for our Celtic Cement Technology process was granted 29th August 2007, patent number GB2401104. The patent was applied for on 29th April 2003 and since that date we have been working on perfecting the process and applying it to a commercial scale enviromnent. Further testing on a diverse range of industrial waste materials has taken place in the meantime with fantastic cementatious properties being achieved.
Celtic Cement Technology Ltd.
The Research Centre
Unit 1, Former Stormydown Aerodrome
Stormydown , Bridgend, Wales, UK,
CF33 4RS
Telephone: 01656 789970
Contact Gary Hunt
