Increasing exfiltration from pervious concrete and temperature monitoring

Tyner, John S.; Wright, Wesley C.; Dobbs, P.A.

doi:10.1016/j.jenvman.2009.02.007

Cited by 36 publications

(14 citation statements)

References 6 publications

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“…Like PA, this type of permeable pavement is intended for areas with low volumes of traffic such as parking los, residential roads, driveways, patios, sidewalks and pathways. PC has been particularly recommended to improve the durability of concrete in freeze-thaw cycles (Tyner, Wright, & Dobbs, 2009). It has proven effective in reducing the pollutant loads in stormwater runoff, while meeting EPA stormwater requirements for tools to manage stormwater runoff (Tennis et al, 2004).…”

Section: Permeable Pavement Systemsmentioning

confidence: 99%

Effect of slope and paver characteristics on performance of permeable pavement GI.

Ehsaei¹

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DEDICATIONI dedicate my dissertation to my family and many friends. A special feeling of gratitude to my loving parents, whose words of encouragement and push got me this far. I also dedicate this dissertation to my wife, who stood by me, and I will always appreciate all her support throughout the process. This dissertation is an experimental study based on the findings of two Green Infrastructure (GI) stormwater control measures (SCMs) in Louisville, KY, which focused on the effects of the physical environment on the performance of GI. The GI installed in Louisville are suffering from extensive and rapid surface clogging and in order to optimize current and future GI, an understanding of the factors affecting the performance of the system is required. The study used the current literature to determine the surrounding factors and those of the permeable surface that had not been investigated enough, and used several configurations of GI to determine the effects of these variables on the surface clogging. iv ACKNOWLEDGMENTSThe module used to test these variables was a wooden flume, specifically designed and constructed from plywood so that the variables of the experiment could be incorporated in testing. The flume simulates a permeable pavement system with storage gallery and a bedding layer, and is paved with three different interlocking concrete pavements that provide gaps of three different sizes. The flume's longitudinal slope can be adjusted, and the permeable joint material can be included. The performance of the vi flume was measured using 7 time domain reflectometer (TDRs) instruments, manufactured by Campbell Scientific, which are located inside the storage gallery.After conducting 21 experiments with various configurations, the data was analyzed to reveal meaningful information. As expected, the experiments with permeable joint material show a clear separation for the sediment deposited on the surface, where empty gaps resulted in inorganics being deposited on the up gradient and organics on the down gradient.The Analysis of Variance (ANOVA) of the progression of clogging and progression of infiltration edge on the permeable surface showed that the increase of gap size from 6 mm to 9 mm did not result in a significant change, but the change to 12 mm gaps resulted in a significantly different rate for the progression of the first rate. The presence of #8 aggregate in the gaps resulted in significant changes in both rates and finally the change of slope from 1% to 3% created a significant change in the rate at which surface clogging progressed.vii

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Section: Permeable Pavement Systemsmentioning

confidence: 99%

Effect of slope and paver characteristics on performance of permeable pavement GI.

Ehsaei¹

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“…The compressive strength of early-age concrete can also be predicted by an advanced computer interface (ACI 209R 2002) and logistic curve models, using the maturity of concrete (Norris et al 2008;Tyner et al 2009;Yang et al 2011;Paroll and Nykänen 1999;ACI 2002). McIntosh (1949McIntosh ( , 1956 found that at equal maturities (computed using the Nurse-Saul maturity function), specimens cured at lower temperatures had lower earlyage strengths than specimens cured at laboratory temperature (20°C).…”

Section: Prediction Of Early-age Compressive Strengthmentioning

confidence: 99%

Curing Management of Early-age Concrete at Construction Site using Integrated Wireless Sensors

Lee

Cho²,

Yang³

et al. 2014

ACT

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The quality requirements of concrete have become more stringent in recent times; therefore, the quality control of earlyage concrete has become an extremely important task at construction sites. Among the various factors affecting the quality performance of concrete, its curing temperature and compressive strength were focused upon in this study. A curing temperature management system was developed for in-place concrete that enables direct, real-time measurements and continuous monitoring of the internal temperature of concrete via an all-in-one wireless sensor network (WSN) during the early curing stages. The system can also suggest an informed decision about stripping of the formworks without having to consider the wiring at the construction site. To validate the system, its performance in monitoring curing temperature was investigated and verified by its application in indoor tests and at real construction sites. The compressive strength of concrete was predicted using several functions based on the maturity and the curing temperature. Then, a field experiment was performed to measure the curing temperature of concrete using the developed system. After fresh concrete was poured into the formworks, the WSN signals were measured at a 150-m radius from the field office. The signals were acquired for 28 days without any dispersion or interruption at the construction site. Therefore, it is concluded that the developed system can improve the measurement accuracy of concrete curing temperatures and can also be used at an actual construction site.

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“…Permeable concrete can be used for the coating of pavements which are not exposed to heavy loads as well as sports fields and parking areas that are generally subjected to rainfall. Permeable concrete can eliminate the complex drainage system requirements by providing the leak of rain water from traffic surface [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%