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ERPE research, since 2001, into the application of Fibre Reinforced Polymer (FRP) composites for strengthening existing civil engineering structures continues to impact design guidelines for preserving and updating the worldwide ageing infrastructure. The lifetime extension of existing infrastructure and buildings is a priority: the UK Government plans to invest up to £250bn over 10 years to return UK infrastructure to `world class' performance. 75% of developed world infrastructure investment covers retrofitting and repair rather than new-build. FRP strengthening is now the method of choice for seismic retrofit, capacity enhancement, structural repair and rehabilitation of concrete and masonry structures.
ERPE research to enhance strength and structural integrity has been used in the development of, or been incorporated into, at least 12 design guides codes and standards worldwide in at least 5 countries including Australia, Canada, China etc.
University of Nottingham research into a composite design for steel beams and floor slabs has resulted in environmental and economic benefits and an important change in the construction industry. The work has reduced the weight of beams and the overall tonnage of buildings, enabled easier installation and improved structural strength. More than 40 projects, with a total combined floor area in excess of 380,000m2, have used the technology since 2008, and the method's market share has been estimated at up to 60%. The breakthrough has facilitated partnerships between steel frame designers and precast flooring manufacturers, with the value to the latter alone put at more than £5M.
Over a period of 20 years, Professor Mangat and colleagues in the Materials and Engineering Research Institute's (MERI's) Centre for Infrastructure Management have developed significant expertise of concrete materials and structures related to deterioration, repair and maintenance of infrastructure. This body of research has led to professional practice and economic impacts related to repair selection, asset management systems, curing systems and novel repair/building materials. Mangat's expertise in concrete deterioration, its remediation and repair has been developed into commercial software systems for bridge and asset management and the national, professionally accredited training course for bridge inspectors/engineers. In the REF impact period, bridge management software has been adopted by over 30 UK local authorities and training delivered to 392 bridge management professionals. Commercialisation of two of Mangat's research innovations, alkali activated materials (AAMs) and low voltage accelerated curing systems (LOVACS), has achieved direct sales of £0.5m and development of the spin-out Liquid Granite Ltd. Additionally, his corrosion protection systems have been adopted by engineering consultants Mott MacDonald, enabling them to win commissioned corrosion-remediation works of over £1m
The key impact is in the definition of best practice for the design of joints, components and structures comprised of glass fibre reinforced polymers (GFRP, also known as fibreglass). The primary beneficiaries are (i) professional civil and structural engineering designers of GFRP structures; (ii) pultruders and composites fabricators due to continually expanding use of GFRPs in construction; and (iii) the general public through the provision of sustainable structures.
In particular, Lancaster's research on pultruded GFRP materials and structures has contributed to the EUROCOMP Design Code and Handbook (1996), the world's first limit state design code for GFRP structures. This code has influenced GFRP structural design globally ever since, both pre and post-2008. Additionally, post-2008, EUROCOMP has triggered and influenced development of new European and Japanese design codes, in turn impacting designers, fabricators and the public in those geographical regions. Lancaster's research has influenced the US Load and Resistance Factor (LRFD) Prestandard (2010) and ASCE's Manual No.102 on bolted and bonded joints (2011) two codes and guidelines that will accelerate the US's application of composites in construction.
Thus, the use of Lancaster's research in these codes and guidelines has supported the construction of fibreglass-based civil structures across the globe as well as the delivery of individuals with the analysis and design skills needed by the composites industry.
Research within the Building Research Establishment's sponsored Centre for Innovative Construction Materials (CICM) at the University of Bath has allowed the life of concrete structures to be extended through developing (a) proper methods for assessing existing capacity and (b) the means to increase capacity where necessary. This has prevented buildings and bridges (managed, for example, by large asset owners such as the Highways Agency and Network Rail) from being condemned as unfit for purpose, resulting in vast savings in reconstruction costs and preventing disruption to infrastructure users. The work has led to the researchers being commissioned to write guidance documents that are routinely used by infrastructure owners and consulting engineers worldwide. Over the course of the last eight years this has resulted in several £millions of savings to infrastructure owners and the UK economy.
Some of the most significant and widely used products for steel framed buildings in the global construction market today have been developed by the Structural & Geotechnical Engineering Research Centre at City University London. Our work in this field has permitted a saving of between 25 and 30% in the amount of steel needed for such buildings, making them now on average 9% cheaper than their concrete equivalents. Our research data from this work is now incorporated into at least six Design Guides and two significant industry software suites, published by the Steel Construction Institute (SCI) [text removed for publication]. Steel frame build times have been reduced by up to 13% and the resulting buildings can be 20-50% more energy efficient, helping the industry move towards its `Target Zero' carbon goals.
The dynamic response of steel members and floor systems has been a key concern in the industry over the last decade. The work undertaken at City has been effective in helping bring new products to market and in improving the application of structural mechanics to real design situations. It has also made a significant contribution to the increasing success of the steel industry in the UK commercial building market.
This Alliance project demonstrated, through the exploration of flexible formwork techniques, that it is possible to use concrete in a much more diverse, sustainable and quality-controlled way than in 20th century architecture, achieving a 25-35% reduction in the carbon footprint of concrete constructions. It has engendered an attitudinal change within the global construction industry, with one US industry professional saying "Prior to this research, concrete was often perceived of as a harsh, aggressive material. Experimentation with fabric forming has shown that it doesn't have to be so". The research has led to two Knowledge Transfer Partnerships, an award-winning Chelsea Flower Show entry and the proprietary application of the technology in other forms of construction. It has also stimulated partnership working with government and schools; collaboration described as the "Curriculum for Excellence at its best".
ERPE research has made major impacts on the design and operation of concrete infrastructure through design, corrosion investigation/residual life prediction and non-destructive testing (NDT). New interpretations of ground penetrating radar (GPR) data have impacted international practice through: the American Concrete Institute (ACI) document on NDT of Concrete, ACI 228.2r2013; fib Model Code 2010, ISBN:978-3-433-03061-5; a corrosion monitoring device; and "GprMax", the world's most widely used and acclaimed GPR freeware.
The financial impact of the underpinning ERPE research is estimated at £100M p.a. on infrastructure maintenance savings worldwide.
By ensuring the durability of notable concrete structures in China, such as the Bird's Nest National Stadium Beijing, Dayawan Nuclear Power Station, Harbin-Dalian Railway Bridges, Qingdao Bay Bridge and Beijing-Tianjin Railway Bridges using Autoclam Permeability System and Permit Ion Migration test, developed by Queen's University Belfast (QUB) and sold by a QUB spin-out Amphora Non-destructive Testing Ltd., the savings in future repair costs are estimated to be hundreds of millions of Chinese Yuan (RMB) (the repair expenditure for the three-year period 2009-'11 was RMB 10.2 billion).
Research on permeability and diffusivity testing of concrete on site since 1993 has led to the incorporation of both the Autoclam and the Permit in a corporation standard issued by the Central Research Institute of Building and Construction (CRIBC), China and the test protocol of Permit in a Chinese railway standard.
The training of construction professionals (including more than 200 senior managers from the Chinese construction industry) since 2008 has impacted on improved sales of Autoclam Permeability System and Permit Ion Migration Test, securing around £500k commercial income, and generating new employment in the UK. Since 2008 these test instruments have been sold to 12 countries.
The impact of this research has been of commercial benefit for TgK Scientific Ltd, a Wiltshire- based SME, who have successfully commercialised a FT-IR Stopped-Flow instrument. This has achieved market share as a result of incorporating an innovative cuvette designed and fabricated by the University of Birmingham's School of Biosciences. The company has sold nine of these instruments since they were first marketed in 2008, generating ~£200,000 in sales. This has made a substantial contribution to the company's total sales, most obviously in 2012 where sales of four instruments accounted for around 10% of their ~£800,000 turnover. The instrument allows the study of fast biological reactions by rapid scanning Fourier Transform Infrared Spectroscopy. The Birmingham contribution is a cuvette of a unique design that enables biological materials to be mixed and observed after 2-3 ms, allowing enzyme-catalysed reactions which have non- chromophoric substrates to be studied in physiological conditions. TgK have combined the cuvette with their stopped-flow drive system and a spectrometer produced by Bruker to make a complete apparatus; it is believed that this gives the instrument a unique functionality valued by a significant niche market.