Mix Design for Pervious Recycled Aggregate Concrete

Abstract

Pervious concrete is a tailored-property concrete with high water permeability which allow the passage of water to flow through easily through the existing interconnected large pore structure. This paper reports the results of an experimental investigation into the development of pervious concrete with reduced cement content and recycled concrete aggregate for sustainable permeable pavement construction. High fineness ground granulated blast furnace slag was used to replace up to 70 % cement by weight. The properties of the pervious concrete were evaluated by determining the compressive strength at 7 and 28 days, void content and water permeability under falling head. The compressive strength of pervious concrete increased with a reduction in the maximum aggregate size from 20 to 13 mm. The relationship between 28-day compressive strength and porosity for pervious concrete was adversely affected by the use of recycled concrete aggregate instead of natural aggregate. However, the binder materials type, age, aggregate size and test specimen shape had marginal effect on the strength-porosity relationship. The results also showed that the water permeability of pervious concrete is primarily influenced by the porosity and not affected by the use of recycled concrete aggregate in place of natural aggregate. The empirical inter-relationships developed among porosity, compressive strength and water permeability could be used in the mix design of pervious concrete with either natural or recycled concrete aggregates to meet the specification requirements of compressive strength and water permeability.

Performance of pervious concrete containing combined recycled aggregates

“…This is because the recycled material has greater specific gravities than the ones used in this study. Sriravindrarajah, Wang and Ervin (2012) found similar results because they used recycled aggregates with the same size as the ones used in this study. Figure 6 shown void content of pervious concrete versus the recycled aggregate in different percentages.…”

“…On the other hand, Aamer Rafique Bhutta (2013) and Sriravindrarajah et al (2012) show a strength of pervious concrete with crushed concrete recycle aggregate of 6 MPa and 4,48-6,96 MPa, respectively. Both results agree with this research.…”

Heavy Metal Leaching, CO2 Uptake and Mechanical Characteristics of Carbonated Porous Concrete with Alkali-Activated Slag and Bottom Ash

“…Porous concrete is defined as a type of concrete with continuous open voids (Sriravindrarajah et al 2012). In general, porous concrete is fabricated with a uniform size of coarse aggregates without fine aggregates to create continuous voids into concrete intentionally (Sriravindrarajah et al 2012).…”

“…In general, porous concrete is fabricated with a uniform size of coarse aggregates without fine aggregates to create continuous voids into concrete intentionally (Sriravindrarajah et al 2012). Since the development of porous concrete in Japan in the 1980s, it has been applied in various ways to restore groundwater supplies and to reduce the runoff from a site (Sriravindrarajah et al 2012;Bhutta et al 2012).…”

“…In general, porous concrete is fabricated with a uniform size of coarse aggregates without fine aggregates to create continuous voids into concrete intentionally (Sriravindrarajah et al 2012). Since the development of porous concrete in Japan in the 1980s, it has been applied in various ways to restore groundwater supplies and to reduce the runoff from a site (Sriravindrarajah et al 2012;Bhutta et al 2012). In recent years, industrial by-products such as coal ash and slag have attracted several studies to utilize the materials in the fabrication of eco-friendly porous concretes (Jang et al 2015a;Park and Tia 2004).…”