APPLICATION OF RECYCLED AGGREGATES IN THE EUROPEAN CONCRETE INDUSTRY - ITS CURRENT STATUS AND FUTURE OUTLOOK
Original hosted in "MACE", contributed by Social Updater
Mankind's universal mission for the next century could be summarised as to "feed double the number of people, provide them with energy and materials, let them live according to the requirements of a developed society and do not pollute the earth nor change the climate". In essence, this should be the clear objective for a "sustainable society". The concept of "sustainable development" was put on the international agenda with the UNO-report "Our Common Future", also known as the "Brundtland Report", which was published in 1987. This report stated - simply put - that problems which occur due to human actions should not be passed on to future generations. In the present paper the "problem" of waste recycling, and in particular the recycling of construction and demolition (C a. D) waste, will be addressed. It is estimated that the amount of construction and demolition (C a. D) waste produced in Europe ranges between 220-335 million tons annually, approximately 0.6-0.9 ton per capita. As a comparison, this is roughly twice the amount of municipal solid waste produced per inhabitant. It will be clear that C a. D waste should be considered as a major waste stream. The progress achieved in Europe will highlighted and documented, including the progress obtained within the recently established European Thematic Network on "Use of Recycled Materials as Aggregates in the Construction Industry". The presentation will be concluded with a vision on how large-scale application of recycled aggregates in the (concrete) construction industry may gradually be obtained.