The possibility of re-using Glass Reinforced Plastic (GRP) industrial by-product powder in cement based composites was investigated. Firstly, the by-product was physically and chemically characterized. Secondly, mechanical, capillary water absorption and shrinkage measurements were carried out on cement mortars manufactured by replacing the 0%, 10%, 15% and 20% of the aggregate volume with GRP by-product and on self compacting concretes manufactured by replacing the 0%, 25% and 50% of the calcareous filler volume with GRP powder. The obtained results show that GRP industrial by-product powder could be used as a partial aggregate or filler replacement in cement based composites. A decrease in mechanical strength was detected on the cement-based materials manufactured by GRP addition. However, capillary water absorption and drying shrinkage of cement-based materials with GRP addition resulted in significantly lower values than those of the cement-based materials manufactured without GRP addition, involving enhanced durability.
Use of GRP industrial by-products in cement based composites / Tittarelli, Francesca; Moriconi, Giacomo. - In: CEMENT & CONCRETE COMPOSITES. - ISSN 0958-9465. - STAMPA. - 32:3(2010), pp. 219-225. [10.1016/j.cemconcomp.2009.11.005]
Use of GRP industrial by-products in cement based composites
TITTARELLI, Francesca
;MORICONI, GIACOMO
2010-01-01
Abstract
The possibility of re-using Glass Reinforced Plastic (GRP) industrial by-product powder in cement based composites was investigated. Firstly, the by-product was physically and chemically characterized. Secondly, mechanical, capillary water absorption and shrinkage measurements were carried out on cement mortars manufactured by replacing the 0%, 10%, 15% and 20% of the aggregate volume with GRP by-product and on self compacting concretes manufactured by replacing the 0%, 25% and 50% of the calcareous filler volume with GRP powder. The obtained results show that GRP industrial by-product powder could be used as a partial aggregate or filler replacement in cement based composites. A decrease in mechanical strength was detected on the cement-based materials manufactured by GRP addition. However, capillary water absorption and drying shrinkage of cement-based materials with GRP addition resulted in significantly lower values than those of the cement-based materials manufactured without GRP addition, involving enhanced durability.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
