International Research Journal of Engineering and Technology (IRJET) Volume: 09 Issue: 11 | Nov 2022
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e-ISSN: 2395-0056 p-ISSN: 2395-0072
Use of Pervious Concrete in Pavements Satish Bagmore1, Harsh Rathore2 M.Tech Scholar, Civil Engineering Department, SAGE University, Bhopal, Madhya Pradesh, India 2 Professor, Civil Engineering Department, SAGE University, Bhopal, Madhya Pradesh, India ---------------------------------------------------------------------***--------------------------------------------------------------------2 BENEFITS OF PERVIOUS CONCRETE PAVEMENTS Abstract - The unique and efficient use of pervious concrete 1
pavement may help to satisfy the needs of the environment. Pervious concrete aids in recharging groundwater by catching precipitation and letting it sink into the earth. In fact, using pervious concrete while building pavement in India's hot, lowrainfall regions seems to be important for raising the water table. By doing away with the requirement for storm water management systems like retention ponds and swales, this paving technology allows for more effective land use.
A lot of people are becoming interested in pervious concrete. Many governments throughout the globe have turned their attention to a variety of environmental advantages, including minimising water and soil pollution, managing storm water runoff, and replenishing groundwater resources. Concrete made using Portland cement that is permeable to water is a discontinuous combination of coarse aggregate, hydraulic cement, and other cementious elements, admixtures, and water. If the underlying soil is adequate for drainage, constructing a permeable surface allows storm water to pass through the pavement and through the soil underneath.
Keywords: Portland cement pervious concrete (PCPC), flood mitigation, Coarse workability of concrete
aggregate, fine aggregate,
1. INTRODUCTION
3 COMPONENTS OF PERVIOUS CONCRETE
Pervious concrete is an alternative paving surface that may be used to minimise the nonpoint source pollution consequences of storm water runoff from paved surfaces like roads and parking lots by allowing some of the precipitation to seep into the ground below. The typically negative environmental effects of growth may be lessened with a pervious substantial asphalt framework that is properly arranged. By supplanting existing regular asphalts, pervious substantial asphalt frameworks may likewise be used to upgrade the ecological exhibition of current locales without diminishing their business esteem. With customary flood alleviation or water quality choices, it is hard to at the same time keep up with water quality, limit flooding, improve base stream, and safeguard significant stopping places for the land owner, especially in retrofit applications. Portland cement pervious concrete (PCPC) has a proven track record of success in the Southeast of the United States, but up until recently, it was seldom used in areas that saw frequent freeze-thaw cycles. Evaluation of real field performance is crucial as a result. Due to its advantages in lowering runoff water volumes, advancing water quality, expanding asphalt slide obstruction during storm occasions by considering speedy water waste, and bringing down asphalt clamor, Portland concrete pervious cement (PCPC) is being used progressively ordinarily. Pervious cement is only sometimes utilized in the US on the grounds that PCPC frequently has huge porosity and unfortunate strength, especially in cruel wet freeze circumstances (e.g., the Midwestern and Northeastern US and different areas of the planet). Increased usage of pervious concrete in these locations will be possible because to improvements in its strength and freeze-thaw resistance.
The basic ingredients of pervious concrete are cement, water, and coarse aggregate. Higher compressive strength may be achieved by adding a little quantity of fine aggregate. It's common practise to utilise additional admixtures such High/Center Reach Water Minimizer (HRWR, MRWR), water retarder, thickness modifying admixtures, and filaments. In specific occasions, fly debris is utilized instead of Portland concrete to work on the manageability of pervious cement.
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3.1 Course Aggregate The primary component of pervious concrete is coarse aggregate. It has been discovered that the characteristics of pervious concrete are influenced by the gradation, size, and kind of coarse aggregate. In pervious concrete, coarse aggregate grading typically consists of either a single size of coarse aggregate or a narrow grading between 3/4 and 3/8 in. (199.5 mm). 3.2 Fine Aggregate Usually pervious concrete is made with a fine aggregate to increase its mechanical strength. However, adding fine aggregate usually results in a reduction in permeability. However, it is advised to keep the proportion of fine aggregate to no more than 7% of the overall weight of aggregate in order to ensure that permeability is met. 3.3 Cement The pervious concrete also includes Portland cement as a significant component. Pervious concrete typically uses cement of type I or type II. The quantity and size of coarse aggregate as well as the amount of water in the cement
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