TRANSPORT & LOGISTICS PFA REPLACEMENT TO DECARBONISE UK CEMENT PRODUCTION
Innovative Ash Solutions has launched a new environmentally-friendly replacement for pulverised fly ash which transforms air pollution control residues from municipal and wood biomass nerators, to create its new PFA replacement.
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ccording to the UK trade body Minerals Products Association, around 15m tonnes of cementitious materials - which includes cement, concrete and grout - are manufactured in the UK each year. The closure of UK based coal fired power stations has resulted in a reduction in the availability of PFA, with an increased reliance on imports, rising from 76,000 tonnes in 2012 to 325,000 tonnes in 2019. This new breakthrough PFA replacement, produced in Scotland, reduces this increasing reliance on imports and provides a lower carbon solution, enabling a more circular and sustainable approach to cement production. With its new ‘End of Waste’ status the PFA, replacement can be marketed for use as a Supplementary Cementitious Material (SCM) in the production of CEMII, the most common form of bagged cement used for general construction purposes. It can also be used in a variety of other applications including mortar, render, screed and grout.
Over the next five years, IAS intends to build three full scale industrial plants, and has been granted planning permission for the first of
these. Initially the plant will produce up to 54,000 tonnes of PFA replacement annually. The company estimates it can ultimately produce up to 500,000 tonnes of its product from UK- produced air pollution control residues IAS is a 50/50 joint venture between Levenseat Limited, a leading player in the Scottish waste and resource management sector, and Organic Innovative Solutions Limited. Last year Levenseat launched a new stream of accredited low carbon aggregates products which provide a more sustainable and lower cost alternative to virgin aggregates used by the construction sector. These products were the first from any Scottish company to secure
end-of-waste status from SEPA. Innovative Ash Solutions Director Robert Green said: “We are excited to bring this new product to market. Innovative Ash Solutions are the first and, so far, the only company in the UK to have achieved ‘End of Waste’ accreditation for a PFA replacement for this type of use. Our research shows there is potential to produce more than 500,000 tonnes of PFA replacement from UK air pollution control residues every year which would reduce the need for importing materials and support the decarbonisation of cement and concrete products.”
Zero Waste Scotland Built Environment Manager Stephen Boyle said: “A circular approach to closing the loop, and therefore keeping resources in use for longer, is necessary to help reduce carbon emissions from the construction industry and to help reach the Scottish Government’s ambitious target to become a Net-zero emissions society by 2045. We are pleased to have supported IAS in the development of this innovative PFA replacement, which utilises existing waste streams to keep resources in use for longer.” BMJ
VANDERSANDEN BRICKS PROVIDE SUPERIOR FINISH AT THE QUARTERS
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t the heart of Manadon Park, the site of the Royal Navy’s former Engineering College, The Quarters is a development of 85 homes by Burrington Estates on the outskirts of Plymouth, in Devon. Although blending harmoniously, subtle differences have been introduced to each of the homes and 40 plots feature elevational treatments in Vandersanden’s Roxton and Corum multi-coloured bricks. Completed in late 2020, The Quarters enjoys a peaceful ambience with mature trees creating a leafy vista. Energy efficiency is at the forefront of the scheme: the homes benefit from smart central heating, high- performance windows, excellent insulation levels and integrated PV panels to selected plots. Stone detailing is incorporated within the red or buff brick elevations of some homes; others have creamy, rendered facades brought alive with features such as brick cills and brick arched window heads. Extended brick plinths further define the aesthetic.
The scheme’s design was inherited by Burrington Estates at the planning stage, explains Steve Fowler, the company’s technical director. “The consented scheme included brick treatments to certain plots. In line with our core values as a business, we wanted a brick which was superior in finish to a run of the mill ‘standard’ brick typically used by more mainstream developers”.
Vandersanden’s Roxton and Corum bricks are both stock facing bricks with sanded-coated and creased structures that are ideally suited to residential schemes. Roxton offers an attractive, orangey-red, multi-coloured aesthetic for an authentic, timeless look. The yellow buff base colour of Corum is augmented by shades of grey to create a varied, multi-coloured and high-quality textured appearance. BMJ
www.buildersmerchantsjournal.net November 2022
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