Structural Analysis of Pervious Concrete Pavement

Vancura, Mary; Macdonald, Kevin; Khazanovich, Lev

doi:10.3141/2226-02

Cited by 29 publications

(9 citation statements)

References 3 publications

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“…The test concrete samples were first weighed to derive its initial weight and taken to the Cantabro test apparatus to assess the rate of mass loss after each of the 100 revolutions, with the overall results taken and plotted after a total of 500 revolutions, as presented in Figure 7 . The obtained laboratory response calculated showed that Y 1 produced a minimum weight loss of 1.64–21.64% from 100–500 revolutions, respectively [ 67 ]. The weight loss was observed to linearly increase as the content fractions of SDA and QD increase with the maximum result obtained at Y 5 with a weight loss of 21.48–46.94% from 100 to 500 revolutions, respectively.…”

Section: Results Discussion and Analysismentioning

confidence: 99%

Scheffe’s Simplex Optimization of Flexural Strength of Quarry Dust and Sawdust Ash Pervious Concrete for Sustainable Pavement Construction

et al. 2023

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Pervious concrete provides a tailored surface course with high permeability properties which permit the easy flow of water through a larger interconnected porous structure to prevent flooding hazards. This paper reports the modeling of the flexural properties of quarry dust (QD) and sawdust ash (SDA) blended green pervious concrete for sustainable road pavement construction using Scheffe’s (5,2) optimization approach. The simplex mixture design method was adapted to formulate the mixture proportion to eliminate the set-backs encountered in empirical or trials and the error design approach, which consume more time and resources to design with experimental runs required to evaluate the response function. For the laboratory evaluation exercise, a maximum flexural strength of 3.703 N/mm2 was obtained with a mix proportion of 0.435:0.95:0.1:1.55:0.05 for water, cement, QD, coarse aggregate and SDA, respectively. Moreover, the minimal flexural strength response of 2.504 N/mm2 was obtained with a mix ratio of 0.6:0.75:0.3:4.1:0.25 for water, cement, QD, coarse aggregate and SDA, respectively. The test of the appropriateness of the developed model was statistically verified using the Student’ t-test and an analysis of variance (ANOVA), and was confirmed to be acceptable based on computational outcomes at the 95% confidence interval. Furthermore, the scanning electron microscopy (SEM) and energy dispersive X-ray (EDX) were used to evaluate the morphological and mineralogical behavior of green prior concrete samples with various additive mixture compositions. The addition of QD and SDA, on the other hand, aided the creation of porous microstructures in the concrete matrix due to fabric changes in the concrete mixture, potentially aided by the formation of cementitious compounds such as calcium aluminate hydrate and calcium silicate hydrate.

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Section: Results Discussion and Analysismentioning

confidence: 99%

Scheffe’s Simplex Optimization of Flexural Strength of Quarry Dust and Sawdust Ash Pervious Concrete for Sustainable Pavement Construction

et al. 2023

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“…More details on the LWD field tests and ISLAB2005 model set up, and the validation procedure can be found in AlShareedah and Nassiri study (8). Vancura et al (37) also validated ISLAB2005 with FWD results of MnRoad PCP cells.…”

Section: Stress Analysis and Load Application In Islab2005mentioning

confidence: 92%

Effect of Temperature Difference on the Thickness Design of Pervious Concrete Pavements

AlShareedah

Haider

Nassiri

2020

Transportation Research Record

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Pervious concrete pavement (PCP) is a porous paving material that facilitates the rapid infiltration of runoff. The significance of temperature difference (ΔT) between the top and bottom of traditional concrete pavements for stresses and structural design is well known. However, with their low thermal conductivity, the question exists whether PCPs develop large ΔTs that vary during the day and between seasons. If so, the extent of the effect of such ΔTs on stresses in the slab and the thickness design of PCP needs to be investigated. In this study, temperature data collected from three PCP sections (in two different climate regions) instrumented with thermocouples were used to analyze ΔT for multi-year periods. Frequency distribution of ΔTs showed bimodal trends with peaks ranging between –6°C and 17°C occurring during the day and night of spring and summer seasons. In winter, ΔT distribution was unimodal, with peaks ranging from 0°C to 3°C. Finite element analysis was conducted to quantify the stresses in PCP sections with different flexural strength ( MR) and modulus of subgrade reaction under combinations of critical ΔTs and axle loading. The resulted stresses were used in a PCP fatigue model to estimate fatigue life and slab thickness for PCPs. Based on the expected load repetitions in a 20-year design life, a database of recommended thicknesses for PCPs with various material properties and under four traffic categories was developed. Increasing MR from 2.4 to 3.1 MPa resulted in reducing PCP design thicknesses by 20–55 mm under the same loads. Moreover, incorporating ΔT in the thickness design of PCP resulted in a higher minimum required thicknesses by up to 100 mm compared with PCP with no ΔT under the same traffic loads.

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“…The majority of the research about pervious concrete commonly agreed to attribute Poisson coefficients between .15 and .2 (Alam, Haselbach, & Cofer, 2012;Vancura, MacDonald, & Khazanovich, 2011) to the material, similar to the standard concrete Poisson coefficient. Elastic Modulus greatly depends on aggregate sieve size distribution, void content and water/cement ratio.…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Evaluating the effect of reinforcing fibres on pervious concrete volumetric and mechanical properties according to different compaction energies

Bonicelli

Giustozzi

Crispino

et al. 2014

European Journal of Environmental and Civil Engineering

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Pervious concrete is a cementitious material characterised by a network of interconnected voids allowing meteoric water to percolate within the concrete matrix. The optimal void content typically ranges from 15% up to 35% of the concrete total volume depending on the applications (ACI Committee 522, 2010;Delatte, Mrkajic, & Miller, 2009;Yang & Jiang, 2003). Gap-graded coarse aggregates and almost no fines are used in the mixes to preserve a high range of voids and therefore drainability features. A viscous cement paste (cement, water and admixtures) is then used to prevent segregation and to bond the aggregates. The water/cement ratio usually varies between .2 and .4, while cement content, generally measured with respect to the aggregate weight, ranges between .18 and .23 of cement/aggregate ratio (Tennis, Leming, & Akers, 2004). The finer portion of the aggregate (below 2 mm of nominal size) is typically omitted from

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Structural Analysis of Pervious Concrete Pavement

Cited by 29 publications

References 3 publications

Scheffe’s Simplex Optimization of Flexural Strength of Quarry Dust and Sawdust Ash Pervious Concrete for Sustainable Pavement Construction

Scheffe’s Simplex Optimization of Flexural Strength of Quarry Dust and Sawdust Ash Pervious Concrete for Sustainable Pavement Construction

Effect of Temperature Difference on the Thickness Design of Pervious Concrete Pavements

Evaluating the effect of reinforcing fibres on pervious concrete volumetric and mechanical properties according to different compaction energies

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