E-Government's Barriers and Opportunities in Greece

Laskaridis, Giorgos; Markellos, Konstantinos; Markellou, Penelope; Panayiotaki, Angeliki

doi:10.4018/9781599048574.ch017

Cited by 1 publication

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“…Calmon et al [3] specifies for the Brazilian situation, the volume fraction of a marble stone block which results in 30 % sawing waste producing slabs of 1-3 cm thickness. Laskaridis gives similar figures for a Greek company [4]. Prevention of landfill and a useful application of these rock powders would therefore constitute a great environmental benefit.…”

Section: Rock Waste Originmentioning

confidence: 65%

Natural Stone Waste Powders Applied to SCC Mix Design / Mehlkornfeine Abfallstoffe der Natursteinindustrie in der Projektierung von SVB

Hunger

Brouwers

2008

Restoration of Buildings and Monuments

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In order to comply with current trends concerning sustainability, saving of primary materials and energy savings, this paper addresses Eco-concrete. The major focus thereby is on the increased efficiency of cement use. Applying a new mix design method for concrete, cement contents can be decreased and partially be substituted by other fine powders, preferentially by waste powders which have no mass application so far. This paper is giving examples of successfully introduced waste powders and characterizes the concretes produced with these powders. These innovative, low cement concrete types obtain medium strength and exhibit furthermore self-compacting abilities. This paper additionally highlights possibilities for the direct use of natural stone sludges or filter cakes. A new grading based design method, developed in the authors' research group, enables the efficient use of all materials available. The method is applicable to self-compacting concretes, earth-moist concretes and conventionally vibrated concretes.

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Section: Rock Waste Originmentioning

confidence: 65%