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Orientador(es)
Resumo(s)
This paper examines the possibility of using finely ground waste glass of the
three most common coloured glass bottles used in Portugal as partial cement replacement in
mortar and concrete. The pozzolanic activity of ground glass was optimised as function of different
particle size. The reduction of waste glass particle size was accomplished in the laboratory
by crushing and grinding the waste glass using a jar mill. The particle fineness, to obtain a
required reactivity, was studied as function of grinding time. The compressive strength activity
index, at 7, 28 and 90 days, was determined for different ground waste glass particle size and
partial cement replacement percentage in mortar. Test method described in ASTM C 1260 was
applied to verify the potential expansion caused by the alkali silica reaction.
The results obtained confirm the pozzolanic activity of the ground waste glass of different colour
collected in central region of Portugal.
Descrição
Palavras-chave
Waste glass Pozolanic reaction