The Current Status of Research and Development on Ecomaterials around the World

Halada, Kohmei; Yamamoto, Ryōichi

doi:10.1557/mrs2001.227

Cited by 55 publications

(27 citation statements)

References 4 publications

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“…Halada and Yamamoto have developed a useful classification of different types of Ecomaterials. 17) Sand from demolition waste which can be used as an aggregate for concrete production is, therefore, a good example for an Ecomaterial with a green environmental profile.…”

Section: Ecomaterials With a Green Environmental Profilementioning

confidence: 99%

Building Materials from Waste

et al. 2003

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In Germany, about 60 million tons of demolition waste are generated annually. Approximately 70% of the demolition waste is currently recycled. Most recycling applications, for example in roadbed substructures, can be seen as a kind of downcycling. However, there are also some high-level applications for demolition waste. For instance, crushed and sieved concrete demolition waste can be used as concrete aggregate instead of natural materials. Depending on the crushing process, about a third of the broken concrete is currently concrete sand. At present, concrete sand fraction (0-4 mm) is rarely reused as a concrete aggregate. This is due to the fact that some important characteristics of crushed concrete sand are different from those of natural sand. As a result, it does not reach the standards required for aggregates. Concrete containing such aggregate is of lower quality than concrete made of natural aggregate. This paper describes an experimental investigation on the treatment of concrete sand gained from demolition waste by wet processing using a jig whereby the sand is separated by grain size and, more importantly, by density. Concrete produced with concrete sand which has been treated in this manner should have the same quality as concrete prepared with natural aggregate. Recycled sand used as aggregate substitutes natural resources and avoids disposal of waste. It has all the characteristics of an Ecomaterial.

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Section: Ecomaterials With a Green Environmental Profilementioning

confidence: 99%

Building Materials from Waste

et al. 2003

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“…Ecomaterials were first defined as materials capable of improving the environment throughout their life cycle by six factors: 1) (1) avoiding and/or reducing the use of non-renewable resources; (2) enhancing the material closed loop by recycling and reusing waste; (3) increasing resource efficiency; (4) using more durable materials with fewer maintenance requirements; (5) promoting the use of renewable resources and energy; and (6) minimizing adverse impacts on biodiversity and eco-systems. This concept involved not only material scientists and engineers, but also economists and social scientists to work together.…”

Section: Introductionmentioning

confidence: 99%

Eco-MCPS: a Newly Developed Web-Based Database for Eco-Materials in Japan

Ozao¹,

Sawaguchi²,

Ishida

et al. 2007

Mater. Trans.

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“…To begin with, six categories of ecomaterials were pointed out 3,4) as effective for practical solutions to environmental dilemma by Halada and Yamamoto. Four of these six fall under the category of ecomaterials of life cycle design.…”

Section: Introductionmentioning

confidence: 99%

Recent Ecomaterial Developments and Environmental Achievements of Major Industries in Japan

et al. 2007

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The research was made on how ecomaterials have been developed and are used currently in Japan. All the information was obtained from the web-sites 2001-2005 year version environmental reports of over two hundred and sixty companies mainly with more than 5000 employees and listed on Japanese stock markets. The researched ecomaterials were classified into the six categories proposed by Japanese ''Ecomaterials Forum''. The number of ecomaterials nearly doubled between 2001 and 2003, and has been on the yearly increase ever since. Each industry is considered to have its individual problems to tackle and has developed its peculiar ecomaterials in response to such problems and requirements year by year. Moreover, many remarkable achievements in eco-products, eco-systems and ecological techniques utilizing ecomaterials are proudly shown in the environmental reports. The spread of these ecomaterials and eco-products will be quite effective for the saving of energy and also contribute greatly to the improvement of environment. Meanwhile, given the use of a large quantity of resources in these days, it is necessary for us to pay attention to and conduct researches into environmental problems including preventive measures against exhaustion of rare resources from a broader perspective and a bird's-eye view approaches.

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The Current Status of Research and Development on Ecomaterials around the World

Cited by 55 publications

References 4 publications

Building Materials from Waste

Building Materials from Waste

Eco-MCPS: a Newly Developed Web-Based Database for Eco-Materials in Japan

Recent Ecomaterial Developments and Environmental Achievements of Major Industries in Japan

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