Compressive and Flexural Strength of Recycled Reactive Powder Concrete Containing Finely Dispersed Local Wastes

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 28 th days standard curing. In this study, 17.56% larger compressive strength and 30.6% flexural strength improvements were observed as compared to the control mix.

Utilization of granite powder and glass powder in reactive powder concrete: assessment of strength and long-term durability properties

“…Waste glass powder in combination with RHA by replacing SF completely in the RPC mix showed improved strength with 20% RHA and 80% fine glass powder combination (Asteray et al 2017) whereas the utilization of glass powder at 20% instead of quartz powder partially enhanced the mechanical performance of RPC, however could not completely replace quartz powder for the production of high strength RPC (Kushartomo et al 2015).…”

“…Waste management in construction sector reduce the intake of natural resources for construction by utilizing waste materials as substitutes thereby averting the global problem D r a f t (Asteray et al 2018). The construction industry is moving towards the pace of sustainable construction by reducing the life cycle cost of the building materials through utilization of waste materials and industrial by-products (Vijayalakshmi.…”

Multi-Criteria Optimization of Cost-Effective and Environmentally Friendly Reactive Powder Concrete Incorporating Waste Glass and Micro Calcium Carbonate

“…Furthermore, multiple research projects have been conducted to explore the impact and synergistic effects of various SCMs, in addition to SF, in the construction of environmentally friendly RPC concrete [38,40,41]. Based on the foregoing findings, it is reasonable to conclude that GP offers the potential as a viable option for traditional materials in the development of RPC [42,43].…”

Statistical analysis of strength properties of reactive powder concrete produced from unrefined metekaolin and gear inner wire

“…Rice Husk Ash (RHA) has been used as a partial substitute for SF [2], [8], [9] and its effect on the mechanical and durability properties of RPC was determined. Test results from the findings of [2] showed that RPC containing RHA has satisfactory mechanical and durability performance under both normal and steam curing condition.…”