International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 06 | June 2024
p-ISSN: 2395-0072
www.irjet.net
Comparison of Pervious Concrete with Conventional concrete Made of Local Materials Md. Asif Ahmed1, Umme Tahmina Toma1, Joy Podder1 , Abdullah-Al Abid2 , Bijoy Podder3 1Department of Civil Engineering, European University of Bangladesh, Dhaka-1216, Bangladesh 2Department of Civil Engineering, Lamar University, Beaumont, Texas, USA
3Department of Electrical Engineering, Ramaiah University of Applied Sciences, Bangalore, India
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Abstract - Pervious Concrete which is also known as porous concrete, permeable concrete or zero fines concrete is a specialized classification of concrete characterized by its high permeability, allowing liquid to pass through it directly. The composition of pervious concrete involves primarily large aggregates with minimal fine aggregates, resulting in a concrete paste that coats the aggregates and permits water permeation through the slab. Its popularity is growing due to its capacity to reduce drainage system overload, with flow rate of water that is around 0.34 cm per second. Pervious concrete is commonly utilized in several applications, including parking pavements with low loading intensity, pathways, walkways, and roads. Pervious concrete acknowledged by EPA which is known as Environmental Protection Agency for its application in sustainable development, storm management and pollution control is created by a proper combination of cement, sand and gravel or cursed stone. Its light color and open-cell structure help mitigate heat absorption from the sun, subsequently reducing heat emission into the atmosphere and minimizing environmental heating. Notably, pervious concrete offers cost-effective installation and acts as a filtration system for storm water, diminishing the influx of pollutants into rivers and ponds. Moreover, it supports tree growth by facilitating better water infiltration into the soil. This study conducted experimental analysis on the behavior of pervious concrete, specifically investigating its workability, compressive strength, split tensile strength, and permeability. The analysis was carried out using 3 different w/c ratios of 0.35, 0.40 and 0.45.
strength, concrete lacks in tensile strength, which is often bolstered by reinforcing bars [15]. Concrete properties both in initial and hardened states, are controlled by the relative proportions of cement, aggregate and water. Notably, this water-cement ratio significantly influences concrete strength, with an increase leading to excessive bleeding and reduced strength [3]. High-performance concrete commonly utilizes standard Portland cement and includes other cementitious elements as by-products, which is a prevalent technique in the industry. Pervious concrete is an unconventional material composed of large pieces of aggregate, cement, water, and very little or no sand [2]. It is characterized by a structure that has empty spaces or openings, allowing for the passage of air or water [4]. This composition facilitates natural water drainage and groundwater replenishment, distinguishing it from conventional concrete or asphalt. Commonly referred to as zero fines concrete, pervious concrete exhibits a void space of almost 15%-30%, with pores ranging from 0.08inchs-0.32inches (2mm-8mm), allowing water passage without compromising the concrete matrix [9,12]. In light of climatic imbalances leading to land drying up, there's a growing trend towards adopting pervious concrete or porous pavement in communities, municipalities, and businesses [5,6]. This material possesses the durability and cost-effectiveness of conventional concrete while also having the potential to deal with storm water runoff and restore local watershed systems [3].
Key Words: Pervious concrete, Mix proportion, Porosity, Compressive Strength, Tensile Strength
1.1 Materials Laboratory testing according to relevant codes is important to measure the properties of materials used in various mixes of concrete. In this study, binding materials such as cement, coarse aggregate such as stone chips and fine aggregates such as sand were examined to ensure compliance with standards and facilitate mix design of concrete for the appropriate strength requirements [7].
1.INTRODUCTION Over time, construction technology has undergone significant advancements, enabling the swift completion of various structures within a month using modern techniques. It's widely acknowledged that concrete is indispensable for economical construction. "Concrete" is derived from the Latin word “concretes” meaning to grow together [1,14]. Constituting cement, aggregate, and water, concrete undergoes a chemical process called hydration upon mixing and placement, solidifying into a durable material. Concrete serves myriad purposes in construction, from pavements to architectural structures, foundations, overpasses, and parking structures. Though rigid with high compressive
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Ordinary Portland cement (OPC): OPC, a crucial cement type, is finely ground Portland cement clinker and is classified into three grades based on 28-day strength: 33 grade, 43 grade, and 53 grade. Quality improvements in cement production, including the use of high-grade limestone, modern equipment, and finer grinding, enhance cement qualities.
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