Effects of Recycled Aggregate Content on Pervious Concrete Performance
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Experimental investigation on permeability indices and strength of modified pervious concrete with recycled concrete aggregate
Abstract Pervious concrete is considered as a type of lightweight porous concrete with no fine or with small percentage of fine aggregate. There are many advantages of this form of concrete like lower density, thermal conductivity, lower drying shrinkage and high permeability. The properties of pervious concrete with different levels of recycled concrete aggregate were presented in this research. The considered percentages of recycled aggregate replacement were 50% and 100% by weight of natural ...
Mechanical Properties, Thermal Conductivity, and Sound Absorption of Pervious Concrete Containing Recycled Concrete and Bottom Ash Aggregates
This paper presents the effect of replacement level of natural aggregate (crushed limestone aggregate, LS) with Recycled Concrete (RC) and coal Bottom Ash aggregates (BA) on pervious concrete properties. Mechanical properties, thermal conductivity, and sound absorption of pervious concrete were tested. Results showed that the compressive strength of BA pervious concrete was excellent and comparable to that of LS pervious concrete. While the compressive strength of RC pervious concrete was slight...
Properties of pervious concrete containing recycled concrete block aggregate and recycled concrete aggregate
Abstract The properties of pervious concretes containing two types of recycled aggregates viz., recycled concrete block aggregate (RBA) and recycled concrete aggregate (RCA) were studied. They were incorporated in pervious concretes by replacing natural aggregate at the levels of 0%, 20%, 40%, 60%, 80%, and 100% by weight. Compressive strength, density, total void, water permeability, thermal conductivity and surface abrasion resistance of pervious concrete containing the aggregates were determi...
Material characterization and hydraulic conductivity modeling of macroporous recycled-aggregate pervious concrete
Abstract The objective of this work was to characterize the mechanical, physical, and hydraulic conductivity properties of macroporous (>30% voids) pervious concrete (MPC) containing recycled aggregates and two binder additives, namely sand and titanium dioxide (TiO 2 ). While MPC exhibited lower compressive strength and higher permeability than normal pervious concrete, the experimental data suggest that the high absorption and low specific gravity of recycled aggregates did not compromise the ...
Abstract The purpose of this study was to develop porous concrete with acceptable permeability and strength using recycled aggregate from waste crushed concrete. The optimum mix proportions were employed to prepare porous concretes using normal and recycled aggregates. Tests carried out on porous concrete were: void ratio, coefficient of permeability, compressive and flexural strengths. The effect of recycled aggregate on total void ratio, strength and permeability was examined. Styrene butadien...
Abstract Washed municipal solid waste incinerator bottom ash (MSWIBA) was used in this study as a substitute for natural aggregate in pervious concrete. The mix proportions of the concrete were first determined using a vertical flow test. Other tests, including permeability, compressive strength, bending and split tensile strength tests, were also performed. The test results show that the unit weight of the fresh pervious concrete made with MSWIBA was approximately 1653–2080 kg/m3 and increased ...
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 ...
Abstract Pervious concrete has been increasingly used to reduce the amount of runoff water and improve the water quality near pavements and parking lots. However, due to the significantly reduced strength associated with the high porosity, pervious concrete mixtures currently cannot be used in highway pavement structures. A laboratory experiment was conducted in this study to improve the strength properties of pervious concrete through the incorporation of latex polymer. This study focused on th...
Experimental work for the compressive strength of recycled aggregate concrete was designed and performed with 264 cubes. The results indicated that the recycled coarse aggregate (RCA) replacement ratio has a remarkable influence on the compressive strength of recycled aggregate concrete,the relationships between the compressive strength and the m w/m c ratio are also different for different RCA replacement ratios and the developments for the compressive strength of recycled aggregate concrete ar...
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