STUDY OF (PB, BA) - CRT GLASS WASTE BEHAVIOUR AS A PARTIAL AGGREGATE REPLACEMENT IN CEMENT MORTARS
DOI:
https://doi.org/10.24193/subbchem.2017.4.29Keywords:
cement, mortar, CRT glass waste, compressive strengthAbstract
This study investigates the usability of the cathode ray tube (CRT) glass waste in a binder system. The raw materials – glass waste, river sand and cement were characterised. CRT waste was added in the amount of 30, 40 to 50 weight percent, as replacement for river sand. Glass chemical composition shows a high content in lead and alkaline oxides. Mortar prisms were prepared and kept under humid conditions. The mechanical properties were studied after 7, 28 and 90 days respectively. SEM with additional EDS was used in order to investigate the microstructure of the samples. All the samples containing glass waste achieved higher compressive strength than the control mortar. After 14, 28 and 42 days of maintaining the mortar in water no evidence of Pb was detected in the solutions.
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