The two themes of integration of structural and durability design, and integration of concrete technologies in relation to global environmental issues are drawn together in this book. It presents the views of distinguished international researchers and engineers on these key topics as the 21st century approaches. Derived from a workshop on rational design of concrete structures held in Hakodate, Japan, in August 1995, the book provides a focus for debate about the ways in which concrete technologies around the world must respond to the necessity of ensuring that concrete construction achieves higher levels of durability, and about the growing imperative to meet higher environmental standards in concrete production and use.
Concrete technology in the century of the environment. Toward rational design of concrete structures - integration of structural design and durability design. Integration of structural and durability design General concept bridging between structural design and durability design. Prediction of durability of concrete: research needs. Service life design for the next century. Importance of prediction techniques on durability in the durability design for concrete structures. Coupled mass transport, hydration and structure formation theory for durability design of concrete structures. Performance criteria for concrete durability. Microstructure and mass transport in concrete. Optical microscopy as a tool for development of high-performance concrete. Integrative approach to optimizing the durability performance of reinforced concrete residential buildings. Deterioration mechanism of glass fibre reinforced concrete and prediction of strength reduction. Durability of concrete exposed in marine environment for 25 years. Shotcrete for repairs: issues and challenges. Life extension of concrete structures using advanced composite materials. OFU bridge repair project. The design of concrete structures against unfamiliar loading conditions. Environmental issues from the construction industry Efficient issues from the construction industry. The state of re-use of demolished concrete in Japan. Mechanical properties of concretes with North Carolina recycled aggregates. Towards completely recyclable concrete. Ecological concrete with continuous voids. High-performance concrete incorporating large volumes of low-calcium fly ash. Chemical admixtures for highly flowable concretes. Index.
Since the 1950s, a number of writers and social commentators have speculated in some depth about the social and cultural changes that might result from the advent of commercially affordable additive manufacturing technology. In recent years, 3D printing is creating significant impact in the humanitarian and development sector. Its potential to facilitate distributed manufacturing is resulting in supply chain and logistics benefits, by reducing the need for transportation, warehousing and wastage. Furthermore, social and economic development is being advanced through the creation of local production economies. 2b1af7f3a8