Compressive and Flexural Strength of Recycled Reactive Powder Concrete Containing Finely Dispersed Local Wastes
Open Access
- 1 January 2018
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Open Journal of Civil Engineering
- Vol. 08 (01), 12-26
- https://doi.org/10.4236/ojce.2018.81002
Abstract
The main objective of this experimental study is to investigate the behavior of Recycled Reactive Powder Concrete (RRPC) developed from finely dispersed local waste raw materials. In this study, RRPC was developed by utilizing local wastes (finely dispersed waste glass powder, waste fly ash and waste ceramic powder) together with Portland cement, fine sand, admixture, steel fibers and water through full replacement of silica fume as well as quartz powder for sustainable construction practice. In this study, all raw materials for making RRPC were analyzed for X-Ray Fluorescence analysis. For sustainability of local construction works, this study employed standard curing method at ambient temperatures instead of steam curing at higher temperatures. Moreover,, hand mixing was used throughout the study. To evaluate the structural performances of the developed RRPC mixes, compressive and flexural strengths of RRPC were investigated experimentally and compared with the control mix. The experimental results indicated that replacing the silica fume fully by finely dispersed local waste glass powder (GP) and fly ash (FA) is a promising approach for local structural construction applications. Accordingly, a mean compressive strength of 62.9 MPa and flexural strength of 8.8 MPa were developed using 50% GP-50% FA at 28thdays standard curing. In this study, 17.56% larger compressive strength and 30.6% flexural strength improvements were observed as compared to the control mix.Keywords
This publication has 25 references indexed in Scilit:
- Performance of dry cast concrete blocks containing waste glass powder or polyethylene aggregatesCement and Concrete Composites, 2011
- Effect of pre-setting pressure applied to mechanical behaviours of reactive powder concrete during setting phaseConstruction and Building Materials, 2011
- Mechanical properties of reactive powder concrete containing high volumes of ground granulated blast furnace slagCement and Concrete Composites, 2010
- Fire performance of highly flowable reactive powder concreteConstruction and Building Materials, 2009
- Metakaolin in the formulation of UHPCConstruction and Building Materials, 2009
- Size effect on compressive strength of reactive powder concreteJournal of China University of Mining and Technology, 2008
- A preliminary study of reactive powder concrete as a new repair materialConstruction and Building Materials, 2007
- Effect of silica fume on steel fiber bond characteristics in reactive powder concreteCement and Concrete Research, 2004
- Characterization of the granular packing and percolation threshold of reactive powder concreteCement and Concrete Research, 2000
- Microstructural analysis of RPC (Reactive Powder Concrete)Cement and Concrete Research, 1995