Abstract
Current climatic changes are occurring due to various human and industrial activities. In particular, the effects of urbanisation and growing threat of global warming have likely caused increasing precipitation in many geographic regions. For many years, portland cement pervious concrete (PCPC) has been making an important contribution, as a sustainable urban drainage system (SUDS), on improving environmental conditions. This type of porous concrete can help minimizing flooding risks, recharging ground water, reducing run off and peak flows, alleviating the precipitation load on overstressed drainage systems and improving water quality by capturing pollutants. The benefits of using PCPC in order to attenuate stormwater problems are quite essential mainly in urban areas where most surfaces typically consist of relatively impervious concrete or asphalt pavements, causing elevated levels of surface runoff. In addition, PCPC can reduce the absorption of solar radiation and urban heat storage potential which can lead to temperate urban conditions, and thus protecting the environment and health and safety of living things. However, PCPC requires regular maintenance to prevent any clogging of the pores by sediments and vegetation. This article provides an overview on pervious concrete mix design, key properties, durability and applications. Also, it touches on practical and scientific challenges of PCPC.
Highlights
With population growth, continual urbanisation has led to an increase of impervious surface areas, which block the percolation of precipitation from rainfall and snow down through the ground
Many communities are exploring their use as an alternative low impact development design for stormwater control measures [1]. Such permeable pavement systems can contribute to solving drainage problems and reducing the risk of flash flooding, resulting from continuous urban developments
Trial batches are strongly recommended to evaluate the important properties of portland cement pervious concrete (PCPC) given the application on hand, including consistency, setting time, strength development, porosity, and permeability
Summary
Continual urbanisation has led to an increase of impervious surface areas, which block the percolation of precipitation from rainfall and snow down through the ground. Permeable pavements have the ability to reduce runoff volume and improve water quality They can store stormwater runoff until infiltrating into soil or conveyed downstream in the stormwater management system by a drain. For this reason, many communities are exploring their use as an alternative low impact development design for stormwater control measures [1]. Many communities are exploring their use as an alternative low impact development design for stormwater control measures [1] Such permeable pavement systems can contribute to solving drainage problems and reducing the risk of flash flooding, resulting from continuous urban developments. This article provides an overview on PCPC including its mix ingredients/proportions, key properties, durability and applications
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