Durability and service life design of concrete constructions have considerable socio-economic and environmental consequences, in which the permeability of concrete to aggressive intruders plays a vital role. Concrete Permeability and Durability Performance provides deep insight into the permeability of concrete, moving from theory to practice, and presents over 20 real cases, such as Tokyo's Museum of Western Art, Port of Miami Tunnel and Hong Kong-Zhuhai-Macao sea-link, including field tests in the Antarctic and Atacama Desert. It stresses the importance of site testing for a realistic durability assessment and details the "Torrent Method" for non-destructive measurement of air-permeability. It also delivers answers for some vexing questions: Should the coefficient of permeability be expressed in m(2) or m/s? How to get a "mean" pore radius of concrete from gas-permeability tests? Why should permeability preferably be measured on site? How can service life of reinforced concrete structures be predicted by site testing of gas-permeability and cover thickness? Practitioners will find stimulating examples on how to predict the coming service life of new structures and the remaining life of existing structures, based on site testing of air-permeability and cover thickness. Researchers will value theoretical principles, testing methods, as well as how test results reflect the influence of concrete mix composition and processing.

Ageing is a complex, time-related biological phenomenon that is genetically determined and environmentally modulated. According to even the most pessimistic projections, average lifespan is expected to increase around the world during the next 20 years, significantly raising the number of aged individuals. But increasing life expectancy presents new problems, and industrialized countries are facing a pronounced increase in lifestyle diseases which constitute barriers to healthy ageing. Anti-Ageing Nutrients: Evidence-based Prevention of Age-Associated Diseases is written by a multi-disciplinary group of researchers, all interested in the nutritional modulation of ageing mechanisms. Structured in three parts, Part 1 looks at the cellular modifications that underlie senescence of cells and ageing of the organisms; the effects of energy restriction on cellular and molecular mechanisms and in the whole organism; and the epigenetic modifications associated with ageing. Part 2 includes chapters which discuss the nutritional modulation of age-associated pathologies and the functional decline of organs, with a focus on those primarily affected by chronological ageing. Part 3 summarises the knowledge presented in the previous chapters and considers the best diet pattern for the aged individuals. The book reflects the most recent advances in anti-ageing nutrition and will be a valuable resource for professionals, educators and students in the health, nutritional and food sciences.