Stephen Garvin

Urban flood management.

1. Introduction Andras Szollosi-Nagy & Chris Zevenbergen 2. Land use & urban floods in developing countries Carlos Tucci & Adolfo Villanueva 3. Cities, lakes and floods: the case of the Green Hyderabad Project, India Joep Verhagen 4. Co-operation within Europe on flood management and spatial planning Roelof Moll 5. Spatial measures and instruments for flood risk reduction in selected EU countries - a quick scan Willem Oosterberg & Jasper Fiselier 6. Risk perceptance and preparedness and flood insurance Paul Baan 7. The role of private insurance companies in managing flood risks in the UK and Europe David Crichton 8. New strategies of damage reduction in urban areas proned to flood Erik Pasche & Timm Ruben Geissler 9. Flood resilience in the built environment: damage and repair Stephen Garvin 10. California climate change: hydrologic response, and flood forecasting Norman Miller Conclusions Andras Szollosi-Nagy & Chris Zevenbergen

Recycling construction and demolition wastes: the case for Britain

In England and Wales, the construction industry produces 53.5 Mt of construction and demolition waste (C&D waste) annually, of which 51 percent goes to landfill, 40 percent is used for land reclamation and only 9 percent is crushed for future use or directly recovered. C&D waste may be contaminated, either through spillage from industrial processes or contact with contaminated land. There are no guidelines on how to classify C&D waste as contaminated or on risk management for contaminated C&D waste. Research at the UK Building Research Establishment and the University of Manchester has shown that new taxes are making disposal of C&D waste to landfill uneconomic, that low grade “land‐modelling” recycling is increasing, and that disposal on‐site is preferred. Sampling spatially of structures before demolition and temporally of processed C&D waste emerging from crushers is enabling sources of contamination and exceedance of guideline values to be compared with natural background levels. Improved sampling procedures and recommendations for risk assessment for the re‐use of C&D waste are being prepared.

Advances in urban flood management

* Challenges in Urban Flood Management Chris Zevenbergen & Berry Gersonius * Sustainable Measures for Flood Attenuation - Sustainable Drainage and Conveyance Systems SUDACS Joachim T. Tourbier & Iain White * Characterisation of Urban Streams and Urban Flooding Ian Douglas, Mira Kobold, Nigel Lawson, Erik Pasche & Iain White * Flood Modelling in Urban Rivers - The state-of-the-art and Where to go Erik Pasche * Urban Flood Management - Simulation Tools for Decision Makers Peter Oberle & Uwe Merkel * Flood Frequency Analysis for Extreme Events Felix Frances & Blanca A. Botero * A Critical Review of Probability of Extreme Rainfall: Principles and Models Demetris Koutsoyiannis * Role of Detention and Retention Basins in Stormwater Management and Environmental Protection Miodrag Jovanovic * Flood Induced Indirect Hazard Loss Estimation Models William Veerbeek * Flood Damage Estimation and Flood Risk Mapping Andreas Kron * Flood Risk Modelling in Urban Watercourses - Results of the European FLOWS Project Erik Pasche & Nicole von Lieberman * Flood Repair Standars for Buildings Stephen L. Garvin & David J. Kelly * Economic feasibility study of flood proofing domestic dwellings Chris Zevenbergen, Berry Gersonius, Najib Puyan & Sebastiaan van Herk * Local flood defence systems in Europe Mitja Brilly * European Flood Strategies in Support of Resilient Buildings David J. Kelly & Stephen L. Garvin * FloReTo - Web Based Advisory Tool for Flood Mitigation Strategies for Existing Buildings Natasa Manojlovic * New Approaches to Flood Risk Management - Implications for Capacity-Building Joanne Tippett & Emma J. Griffiths * Towards Integrated Approaches to Reduce Flood Risk in Urban Areas Richard Ashley, John Blanksby, Jonathan Chapman & JingJing Zhou * Hydrological Modelling of Floods Mira Kobold * An Overview of Flood Protection Barriers Jean-Luc Salagnac * An Innovative Semi-Permanent Flood Protection Structure - Alternative to Sandbags and Supplements to Conventional Earth Embankments Jarle T. Bjerkholt & Oddvar G. Lindholm * The English Planning System and Flood Risk Management Juliet Richards * French Regulations for Urban Flood Management Nicolas-Gerard Camphuis

THE CHEMICAL COMPATIBILITY OF CEMENT-BENTONITE CUT-OFF WALL MATERIAL

Abstract Containment techniques are amongst the most common methods of remediating land contaminated by previous industrial use. An important part of the containment process is the placing of vertical in-ground barriers to minimise the movement of contamination from site. Self-hardening slurry trench cut-off walls of cement–bentonite are barriers that are increasingly being used in the United Kingdom. The use of cement–bentonite slurry trench cut-off walls, particularly in highly aggressive environments, raises concerns over durability and long-term performance. The relatively recent use of such barriers means that there is little information on their long-term performance. This paper describes research being undertaken to investigate the properties of cement–bentonite cut-off walls and to examine potential durability problems. Laboratory immersion tests have been used to assess the chemical resistance of typical cement–bentonite mixes containing ordinary Portland cement, ground granulated blast-furnace slag and pulverised fuel ash. These mixes showed varying degrees of resistance to chemical attack with pulverised fuel ash mixes more resistant than those with ground granulated blast-furnace slag. The advantages and limitations of such tests are discussed.

Environmental conditions in window frames with double-glazing units

Abstract The use of double-glazing units has increased steadily over the years and now sealed units are installed in most new buildings and used in replacement of windows. However, failure of double-glazing units due to condensation between the panes has occurred on many construction projects and this has demonstrated the need to use good quality units that are glazed into appropriate frames using the correct methods. A long-term exposure experiment began in 1994 to monitor the conditions around double-glazing units in various types of window frames. This experiment uses instrumentation to measure the relative humidity, temperature and the presence of liquid moisture in the cavities around the edge seal of double-glazing units. Results are reported for a 2-year monitoring period (from October 1994 to September 1996), these demonstrate differences between winter and summer periods and the effect of the external and internal environment on conditions in the glazing cavity. The implications for the durability of the double-glazing units are discussed, although, the results presented here are interim.