Pervious concrete adopting recycled aggregate for environmental sustainability

Chen, Wei; Jin, Ruoyu

doi:10.1016/b978-0-323-89838-6.00008-6

Cited by 1 publication

(1 citation statement)

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“…Recycled aggregate concrete (RAC) can use construction and demolition (C & D) wastes [11]. The substitution of natural aggregates with recycled aggregates (RAs) increases sustainability for recycled aggregate pervious concrete (RAPC or PRAC) by reducing the concrete's carbon footprint and promoting a circular economy with the aim of mitigating climate change [12]. There are challenges to overcoming the RA-limiting characteristics of PRAC applications, such as size, irregular particles, and paste adhesion limits.…”

Section: Introductionmentioning

confidence: 99%

Corrosion of Steel Rebars in Construction Materials with Reinforced Pervious Concrete

Lerma Villa,

Reyes Araiza,

Pérez Bueno

et al. 2024

Infrastructures

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Pervious concrete has great potential for use in many practical applications as a part of urban facilities that can add value through water harvesting and mitigating severe damage from floods. The construction and agricultural industries can take direct advantage of pervious concrete’s characteristics when water is a key factor included in projects as part of the useful life of a facility. Pervious concrete also has applications in vertical constructions, fountains, and pedestrian crossings. This work evidences that pervious concrete’s corrosion current increases with increasing aggregate size. Also, corrosion is a factor to consider only when steel pieces are immersed, aggravated by the presence of chlorine, but it drains water and does not retain moisture. Steel-reinforced pervious concrete was studied, and the grain size of the inert material and the corrosion process parameters were investigated. The electrochemical frequency modulation technique is proposed as a suitable test for a fast, reproducible assessment which, without damaging reinforced cement structures, particularly pervious concrete, indicates a trend of increasing corrosion current density as the size of the aggregate increases or density diminishes.

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Section: Introductionmentioning

confidence: 99%