Pulp and paper plant wastes valorisation in bituminous mixes
authors Modolo, R; Benta, A; Ferreira, VM; Machado, LM
nationality International
abstract Nowadays, the increasing amount of wastes is a concerning reality and the environmental aspects has become a major priority. Following this worry, the purpose of this experimental Study was to investigate the possibility Of using pulp and paper inorganic wastes, named dregs and grits, in bituminous mixtures as aggregate replacement to reduce environmental effects of these wastes disposal. First, the wastes were chemically and physically characterized and also tested primarily taking into account the requirements for aggregates in bituminous mixtures. Then, formulations were prepared replacing aggregates with wastes in different amounts. The mechanical properties of these Mixtures containing wastes were compared with reference samples based on standard methods. According to the results it was possible to verify that grits had a good performance and it might be directly tested industrially as an aggregate in road construction. On the other hand, dregs need to be treated before incorporation to guarantee stable mixes in terms of water sensitivity. (C) 2009 Elsevier Ltd. All rights reserved.
issn 0956-053X
year published 2010
volume 30
issue 4
beginning page 685
ending page 696
digital object identifier (doi) 10.1016/j.wasman.2009.11.005
web of science category Engineering, Environmental; Environmental Sciences
subject category Engineering; Environmental Sciences & Ecology
unique article identifier WOS:000275766700020
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