influence of recycled aggregate replacement and fly ash content in performance of pervious concrete mixtures

Vieira, Gabrieli Lazzari; Schiavon, Jéssica Zamboni; Borges, Pietra Moraes; Silva, Sérgio Roberto da; Andrade, Jairo José de Oliveira

doi:10.1016/j.jclepro.2020.122665

Cited by 97 publications

(19 citation statements)

References 52 publications

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“…A similar result was noted that RCA obtained from high strength parent concrete can achieve a similar compressive and tensile strength to normal strength concrete with NA [105]. In addition, as frequently observed in other studies [106,107], RAC with 100% RCA replacement showed lower mechanical strength than RAC with 50% RCA replacement. Considering the lower physical performance of RCA compared to NA, it is an expected result, and, the relationship between the strength of the parent concrete and the strength of the next generation concrete is also observed.…”

Section: The Effect Of Parent Concrete On the Properties Of Next Generation Concretesupporting

confidence: 88%

Some Remarks towards a Better Understanding of the Use of Concrete Recycled Aggregate: A Review

et al. 2021

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Research on recycled concrete aggregates (RCAs) has been progressively advanced. Beyond replacing natural aggregates with RCA, discussions have been held on the effect of the parent concrete and repeatedly recycled aggregate concrete. Although it has been reported that RCA can be technically used for structural concrete, due to several other factors, RCA is mainly used for sub-bases. Therefore, identifying these factors is the key to promoting the use of RCA. Therefore, this review study first briefly summarizes the physical and chemical characteristics of RCA compared to natural aggregate, and reviews the effects of parent concrete and repeatedly recycled aggregate on next generation concrete. This study also briefly discusses the RCA standards of various countries and the factors that hinder the widespread use of RCA. The results show that there is a correlation in properties between parent concrete and the next generation concrete, and the properties of concrete decrease when RCA is used repeatedly. In addition, on the basis of the literature review, factors hindering the use of RCA were found to be unstable supply and demand, economic feasibility, and negative perceptions.

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Section: The Effect Of Parent Concrete On the Properties Of Next Generation Concretesupporting

confidence: 88%

Some Remarks towards a Better Understanding of the Use of Concrete Recycled Aggregate: A Review

et al. 2021

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“…Furthermore, the combined replacement of SF and RA exhibited improved mechanical and hydraulic performance [17] as compared to individual replacements of SF and RA, which exhibited inferior mechanical performance coupled with adequate hydraulic performance [18,35]. Thus, it is possible to obtain improved performance from the combined replacement of materials that produced inferior performance individually [30,53,[67][68][69][70][71][72][73].…”

Section: Combined Replacement Of Cement and Aggregates In Pervious Co...mentioning

confidence: 99%

Meta-Analysis of the Performance of Pervious Concrete with Cement and Aggregate Replacements

et al. 2022

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In recent years, pervious concrete (PC) has gained much attention as one of the strategies for low-impact development (LID) in pavements due to its structural, economic, and road-user benefits. This study sought to review and evaluate changes in the mechanical, hydraulic, and durability performance of PC produced with cement and aggregate replacements. A meta-analysis was conducted to elucidate the feasible range of the replacement percentage and the number of materials that could be used to replace cement and aggregates; single or binary replacements were considered. Results indicated that cement-replacing materials, industrial wastes (IWA), and recycled aggregates (RA) met the minimum requirement for the mechanical, hydraulic, and durability properties of PC. The use of a single cement replacement material provided PC with better performance than when cement was replaced with two or more materials or when cement alone was used. Industrial waste was found to be a better replacement to aggregates than RA. The combined replacement of cement and aggregates with IWA and other cement-replacing materials was the most effective method for improving the mechanical, hydraulic, and durability performance of PC. Replacements of up to 40% was considered viable for cement replacement, while up to 50% replacement was considered practical for aggregate and combined replacement. PC incorporating different cement-replacing materials exhibited equivalent or improved mechanical properties and maintained hydraulic performance compared to cement-based PC. Nonetheless, limited studies are available on the durability performance of PC made with cement and/or replacements. Thus, the durability of PC coupled with the applicability of replacement materials acquired from different locations need to be evaluated to address the viability of producing more durable PC with the use of replacements.

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“…The adding of industrial wastes, including blast furnace slag and fly ash, to concrete materials will not only improve the working performance, but also significantly reduce the carbon emissions and promote the green development in civil engineering area. For instance, the High Performance Concrete (HPC) will add some auxiliary cementitious materials such as fly ash, slag and chemical admixtures [3].…”

Section: Background and Introductionmentioning

confidence: 99%

Virtual mix design: Prediction of compressive strength of concrete with industrial wastes using deep data augmentation

Chen

Zhao

Gao

et al. 2022

Construction and Building Materials

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influence of recycled aggregate replacement and fly ash content in performance of pervious concrete mixtures

Cited by 97 publications

References 52 publications

Some Remarks towards a Better Understanding of the Use of Concrete Recycled Aggregate: A Review

Some Remarks towards a Better Understanding of the Use of Concrete Recycled Aggregate: A Review

Meta-Analysis of the Performance of Pervious Concrete with Cement and Aggregate Replacements

Virtual mix design: Prediction of compressive strength of concrete with industrial wastes using deep data augmentation

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