Concrete is the most widely used construction material and is essential to the global programme of infrastructure updating (global estimate ~$100tn including UK National infrastructure plan £400bn) (www.oxfordeconomics.com/publication/open/283970). Excessive cracking due to restraint in poorly designed reinforced concrete (RC) structures is a widespread problem in the concrete construction industry and leads to many instances of costly remedial measures and delays. For example, a recent project in England was delayed due to excessive cracking caused by the restraint of imposed strains (from early thermal and shrinkage actions). Subsequent changes recommended by the applicants during the construction programme to limit the edge restraint of early thermal and shrinkage strain produced a real cost saving to the client of approximately £1.75M. The design guidance developed in this research will increase the performance and efficiency of new RC infrastructure as well as prolong the life of existing infrastructure through improved understanding of cracking. There are many situations when cracking due to the restraint of imposed deformations may be difficult to avoid. In fact, cracking from the restraint of early thermal movements (often referred to as 'non-structural' cracking) is the most common form of restraint induced cracking. In design, cracking is managed by the provision of reinforcement intended to distribute internal strains in such a way as to control the cracking pattern and limit crack widths. Current UK/EU design guidance on restraint induced cracking is encapsulated in EN1992-3:2006 and CIRIA report C660/766. The underlying design methodology in these documents has been used for over 30 years and is flawed. This is reflected in field observations identifying cracking patterns contrary to - and crack widths in excess of - those predicted by EN1992-3:2006. It is apparent that such 'non-compliance' cases result from erroneous basic assumptions; in particular; the boundary (restraint) conditions play a more significant role in determining the crack pattern than assumed in the current design guidance. The outcome of this research will provide practising engineers with the ability for the first time in three generations of UK/EU codes to correctly design RC elements for the restraint of short and long-term imposed strains. Planned dissemination routes will significantly aid the reduction in frequency and overall number of non-compliance cases, which currently result from the poor understanding of restraint induced cracking and affect all aspects of concrete construction in the UK.

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.

The project will investigate the processes affecting the dilution of dense, concentrated brine when it is discharged from an industrial outfall diffuser into coastal waters. Concentrated brine is produced as a waste product from solution mining and desalination plants and it is harmful to marine fauna and flora when it is discharged into coastal waters. This project will model the ways in which the concentration of brine is diluted by mixing with the coastal waters and it will quantify the mixing taking place as the brine spreads away from the outfall diffuser under the action of currents and background turbulence. The problem will be modelled by means of laboratory experiments, mathematical analyses and computer simulations so that the important mixing processes can be understood, parameterised and quantified. Archived field monitoring measurements taken on a regular basis from the waters around an existing brine discharge diffuser will also be analysed and compared with the modelling results and predictions. By combining these modelling and field approaches, the results of the project can be used to provide guidance to outfall designers and environmental monitoring agencies to enable them to predict brine dilution and contamination.

This proposal from Loughborough University outlines the case to renew the funding for the Industrial Doctorate Centre for Innovative and Collaborative Construction Engineering (CICE) as part of the Industrial Doctorate Centres call aginst the Towards Better Exploitation element of the EPSRC Delivery Plan. In partnership with an established industry base, CICE is delivering a high quality research and training programme that: meets the core technical and business needs of the construction industry; enhances its knowledge base; and produces high calibre doctoral graduates that can drive innovation. The Centre addresses a wide range of research issues that concern the UK construction industry including: Innovative Construction Technologies; Construction Business Processes; Advanced Information and Communication Technologies; Sustainable Design and Construction; and Transport and Infrastructure. Many of these areas have been highlighted in various reviews of the industry including the Latham Report, the Technology Foresight Report, the Egan Task Force Report, and more recently the National Technology Platform's research priorities. It also contributes to the EPSRC Delivery Plan as part of the knowledge transfer research and training activities. The research areas of the Centre align with the Engineering and Science for Sustainability research theme, as outlined in the EPSRC's Research Priorities and Opportunities, and fall under the 'Construction and the Built Environment' and 'Transport' sub-themes. Within the Construction and Built Environment, the Centre builds on existing strengths in the Department of Civil and Building Engineering established as part of the Engineering Doctorate Centre and other related industry based research to address some of the EPSRC research priorities to improve efficiency across the supply chain, including: encouraging the uptake of ICT to promote efficiency; improving building performance to minimise impacts on the environment ; and the analysis and design of civil engineering structures . Within the Transport area Sustainability and Innovation are key themes of the research that centres on transport operation and management, transport telematics, and minimising energy use and environmental impact . The Engineering Doctorate Centre (CICE) was established in 1999 and has subsequently recruited a total of 94 research engineers sponsored by a total of 63 large, medium and small companies. Loughborough University is a research intensive institution, which integrates its research and teaching activity at every opportunity to provide a top quality research led learning experience for all its students. The Department of Civil and Building Engineering has consistently achieved high research rating in the RAE assessments and the last RAE results were 5* in Built Environment. The Engineering Doctorate is part of Loughborough University's excellent doctoral research training programme, which in addition to supporting the pursuit of a particular project aims to provide a basic professional training to support the research and offer personal development opportunities. The training programme integrates taught and research elements tailored to suit the needs of the research engineer, project, and the sponsoring company while maintaining the expected quality of the academic standards required for a doctoral study. The Centre is managed by the Director, Prof. Dino Bouchlaghem supported by a Deputy Director, a Centre Manager and an Administrator. A Centre Management Board consisting of the Director, Deputy Director, and Industrial Representatives meets twice a year and is chaired by a senior industrialist from one of the sponsoring companies, oversees the work of the Centre and provides direction and guidance on strategic matters. This proposal has the full support of the University and has been subject to an internal review process to ensure synergy with the University's Research Strategy.

Abstracts are not currently available in GtR for all funded research. This is normally because the abstract was not required at the time of proposal submission, but may be because it included sensitive information such as personal details.