Long-Term Performance of Recycled Concrete Aggregate for Subsurface Drainage

McCulloch, Toni; Kang, Dong Hoon; Shamet, Ryan; Lee, Seung Jae; Nam, Boo Hyun

doi:10.1061/(asce)cf.1943-5509.0000994

Cited by 15 publications

(10 citation statements)

References 12 publications

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“…Arulrajach et al [52], based on constant head test experiments, estimated the coefficient of permeability in range of 2.04 × 10 −3 to 3.3 × 10 −8 m/s, which indicates the existence of non-Darcian flow. Tests performed by McCulloch et al [53] were conducted for RCAs with 4% fines and with fractions of 0–50 mm. The reported coefficients of permeability were in the range of 1 × 10 −4 to 3 × 10 −4 m/s.…”

Section: Results Discussion and Conclusionmentioning

confidence: 99%

“…The reported coefficients of permeability were in the range of 1 × 10 −4 to 3 × 10 −4 m/s. Tests on RCAs with poorly graded RCAs with fractions of 6–12 mm and with no fine content have proven a high water permeability of such material with a coefficient of permeability of approximately 1 × 10 −3 m/s [53]. Tests performed on an RCA blend with gradation of 0−50 mm and with 5% fine contents have shown that the coefficient of permeability calculated based on a constant head permeability test is equal to 1.06 × 10 −6 m/s [54].…”

Section: Results Discussion and Conclusionmentioning

confidence: 99%

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Estimation of Recycled Concrete Aggregate’s Water Permeability Coefficient as Earth Construction Material with the Application of an Analytical Method

2019

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Creating models based on empirical data and their statistical measurements have been used for a long time in the economic sciences. Increasingly, these methods are used in the technical sciences, such as construction and geotechnical engineering. This allows for reducing the costs of geotechnical research at the design stage. This article presents the research carried out on Recycled Concrete Aggregate (RCA) material with is reclaimed crushed concrete rubble. Permeability tests were carried out using the constant head method. Tests were conducted on blends of RCA with the following particle size ranges: 0.02–16 mm, 0.05–16 mm, 0.1–16 mm, and 0.2–16 mm. The gradients used during the tests were between 0.2 to 0.83, which corresponds to gradients encountered in earth construction and are below the critical gradient. Directly from the tests, the flux velocity for the range of tested gradients were calculated based on filtered water volume measurements. The values of the permeability coefficient (k) were then recalculated. Finally, statistical methods were used to determine which physical parameters of the tested material affect the permeability coefficient. The physical parameters selected from the statistical analysis were used to create a model describing the phenomenon. The model can be used to determine the permeability coefficient for a mixed RCA material. The article ends with conclusions and proposals concerning the use of models and the limits of their applicability.

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Section: Results Discussion and Conclusionmentioning

confidence: 99%

Section: Results Discussion and Conclusionmentioning

confidence: 99%

Estimation of Recycled Concrete Aggregate’s Water Permeability Coefficient as Earth Construction Material with the Application of an Analytical Method

2019

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“…Due to this behaviour, their use is not recommended, or it is even forbidden, in some states of the USA [ 36 , 37 ]. However, there are also some studies concluding that tufa formation and recementation are not significant, especially if the percentage of fines is limited to a small percentage [ 19 , 31 , 32 , 38 , 39 ].…”

Section: Introductionmentioning

confidence: 99%

“…Given the restrictions, or even prohibitions, on the use of RCA and RSSA in unbound granular layers of road pavements, very few studies have been carried out to assess their behaviour as drainage materials [ 16 , 19 , 32 , 38 ], which has limited their recycling in drainage structures of geotechnical works (e.g., rainwater drainage layer in landfills, vertical sand drains, and back drainage of earth retaining walls) and road pavements (e.g., longitudinal edge drains, transverse and horizontal drains, permeable bases, and underdrains/deep drains).…”

Section: Introductionmentioning

confidence: 99%

Recycling of crushed concrete and steel slag in drainage structures of geotechnical works and road pavements

Roque

Silva

Almeida

2022

J Mater Cycles Waste Manag

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A crushed concrete aggregate, processed from construction and demolition waste and a siderurgical aggregate, processed from electric arc furnace steel slag, were selected based on their very high availability worldwide and known technical feasibility to be used in construction works. Given the association of their presence to the possibility of reducing the drainage capacity of unbound granular layers of road pavements and drainage structures which they may be associated with, there are studies and regulations that do not recommend their use. The causes that are at the origin of restrictions are mainly the possibility of formation of tufa and recementation phenomena. This behaviour has also hampered their recycling in drainage structures of geotechnical works. Therefore, it was considered that it would be relevant to investigate the drainage capacity of those recycled aggregates, using a leachate produced in a municipal solid waste landfill and tap water. To reference their behaviour, two natural aggregates, a basalt and a limestone, were also studied under identical test conditions. The results obtained showed no reduction in the drainage capacity of the recycled aggregates, similarly to what was observed with the natural aggregates. The possibility of building drainage structures with the tested aggregates is verified.

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“…Existing researches mostly concerned about the design of the mixing ratio of certain aggregate in the concrete, or the test on the performance of ordinary permeable concrete in terms of mechanics, permeability, and frost resistance [24][25][26][27][28][29], and very few of them have paid attention to the basic properties of recycled aggregate permeable concrete made of reused construction wastes. To fill in such research gap, this paper studied the mechanical properties and durability of recycled aggregate permeable concrete.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties and Durability of Recycled Aggregate Permeable Concrete

Liu¹,

Dong²

2021

RCMA

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The recycled aggregate permeable concrete made of reused construction wastes is very important for realizing the sustainable development of the construction industry, it can alleviate the adverse impact of surface runoff during storm and the urban heat island effect. Therefore, this paper studied the mechanical properties and durability of recycled aggregate permeable concrete. At first, a few properties of the target material, including bulk density, moisture content, water absorption, compressive strength, and water permeability coefficient, were tested respectively. Then, based on the orthogonal test, the performance of the target material was analyzed, and the analysis steps of the range analysis method and the variance analysis method in the orthogonal test were given. At last, the mechanical properties and durability of the target material were tested via experiments, and the relevant test results and analysis were elaborated.

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Long-Term Performance of Recycled Concrete Aggregate for Subsurface Drainage

Cited by 15 publications

References 12 publications

Estimation of Recycled Concrete Aggregate’s Water Permeability Coefficient as Earth Construction Material with the Application of an Analytical Method

Estimation of Recycled Concrete Aggregate’s Water Permeability Coefficient as Earth Construction Material with the Application of an Analytical Method

Recycling of crushed concrete and steel slag in drainage structures of geotechnical works and road pavements

Mechanical Properties and Durability of Recycled Aggregate Permeable Concrete

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