Optimizing pervious concrete pavement mixture design by using the Taguchi method

Joshaghani, Alireza; Ramezanianpour, Ali Akbar; Ataei, Omid; Golroo, Amir

doi:10.1016/j.conbuildmat.2015.10.094

Cited by 150 publications

(50 citation statements)

References 8 publications

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“…For mixtures with equivalent w/c ratios and design porosities, the use of smaller aggregate results in lower CO 2 sequestration potentials as compared to the use of a larger aggregate (Figure 3). The cementitious paste thickness for small aggregate mixtures is, on average, less than a large aggregate mixture of equivalent porosity [10,39]. Thus, the total cement content in small-aggregate mixtures will be lower compared to large-aggregate mixtures with the same design porosity.…”

Section: Co2 Sequestration Potentialmentioning

confidence: 99%

On the Theoretical CO2 Sequestration Potential of Pervious Concrete

2019

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Pervious concrete, which has recently found new applications in buildings, is both energy- and carbon-intensive to manufacture. However, similar to normal concrete, some of the initial CO2 emissions associated with pervious concrete can be sequestered through a process known as carbonation. In this work, the theoretical formulation and application of a mathematical model for estimating the carbon dioxide (CO2) sequestration potential of pervious concrete is presented. Using principles of cement and carbonation chemistry, the model related mixture proportions of pervious concretes to their theoretical in situ CO2 sequestration potential. The model was subsequently employed in a screening life cycle assessment (LCA) to quantify the percentage of recoverable CO2 emissions—namely, the ratio of in situ sequesterable CO2 to initial cradle-to-gate CO2 emissions—for common pervious concrete mixtures. Results suggest that natural carbonation can recover up to 12% of initial CO2 emissions and that CO2 sequestration potential is maximized for pervious concrete mixtures with (i) lower water-to-cement ratios, (ii) higher compressive strengths, (iii) lower porosities, and (iv) lower hydraulic conductivities. However, LCA results elucidate that mixtures with maximum CO2 sequestration potential (i.e., mixtures with high cement contents and CO2 recoverability) emit more CO2 from a net-emissions perspective, despite their enhanced in situ CO2 sequestration potential.

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Section: Co2 Sequestration Potentialmentioning

confidence: 99%

On the Theoretical CO2 Sequestration Potential of Pervious Concrete

2019

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“…The higher strength and larger strength range of vegetation-pervious concrete yield an extensive range of applications for slope protection. Specifically, when the admixture content was 3.6%, the strength substantially increased to 25.2 MPa, which is much greater than the strength range of 5–15 MPa, as reported in the previous studies [16,36,37,38,39]. The main reason is that the admixture used can promote the cement hydration reaction.…”

Section: Resultsmentioning

confidence: 49%

Development of Vegetation-Pervious Concrete in Grid Beam System for Soil Slope Protection

et al. 2017

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One of the most efficient and environmentally friendly methods for preventing a landslide on a slope is to vegetate it. Vegetation-pervious concretes have a promising potential for soil protection. In this study, the vegetation-pervious concrete with low alkalinity was developed and studied. Combined with a grid beam structure system, the stability and strength between the vegetation-pervious concrete and base soil are believed to be enhanced effectively. For improving plant adaptability, the alkalinity of concrete can be decreased innovatively by adding a self-designed admixture into the cement paste. The effects of the admixture content on alkalinity and compressive strength of the hardened pervious concrete were investigated using X-ray diffraction (XRD) and compression test, respectively. Meanwhile, the permeability of the vegetation-pervious concrete was studied as well. Through comparing with ordinary pervious concrete, the effect of low alkaline pervious concrete on vegetation growth was investigated in a small-scale field for ten weeks. The test results indicated that the alkalinity of the cement samples decreased with the increase of admixture content, and the vegetation grew successfully on previous concrete. By increasing the admixture content to approximately 3.6%, the compressive strength of pervious concrete was more than 25 MPa.

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“…Taguchi method has been successfully used by various authors for similar purposes for various materials in civil engineering and other fields: Mohebi et al applied Taguchi method to design abrasion‐resistive, alkali‐activated slag concrete. Kumar et al used Taguchi method to optimize biodiesel production from Manilkara zapota (L.) seed oil. Tanyildizi et al applied Taguchi method to optimize the strength of polymer concrete. Panagiotopoulou et al applied Taguchi method to optimize the composition of alkali‐activated fly ash binders. Joshaghani et al used Taguchi method to design optimal mixture of pervious concrete pavement. Yuan et al used Taguchi method to design ternary activator‐activated slag to obtain optimal product properties. Onoue et al optimized the shock‐absorbing capability of lightweight concrete incorporating with volcanic pumice aggregate using Taguchi method; Bagheri et al used Taguchi method to optimize the compressive strength of geopolymers combined with fly ash and granulated blast furnace slag aggregates. …”

Section: Methodsmentioning

confidence: 99%

Optimizing the ultimate strength of precast reinforced concrete pipes in three‐edge bearing tests

Chao

Kuo

2017

Structural Concrete

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By utilizing Taguchi method, this paper presents a simplified approach that aims at developing technical recommendations of control factors of reinforcement and concrete for steel wire reinforced concrete pipes (SWRCP). For this purpose, the structural behaviors of full scale of 400 and 600 mm inside diameter SWRCPs were analyzed. Three control factors, namely wire diameter (dw), wire winding pitch (pw), and water/cement ratio of concrete (w/c of concrete) were designed in an L9 orthogonal array. The best possible levels were determined for maximization of crushing load (Fcr) and ultimate load (Fu) in three‐edge bearing tests and minimization of crack width (Wcr). Based on the results, the economical and optimal control factors of dw, pw, and w/c of concrete for SWRCPs with inside diameter of 400 mm are 6.5 mm, 100 mm, and 33.5%, respectively. For SWRCPs with inside diameter of 600 mm, the optimal control factors of dw, pw, and w/c of concrete are 6.5 mm, 33 mm, and 33.5%, respectively. In addition, by the use of analysis of variance, the contribution percentages of control factors were obtained and were used as the most effective factors on the Fcr, Fu, and Wcr for SWRCPs. Through the implementation of the study, this paper concludes a practical and significant overall idea of designing SWRCPs for pipe manufacturing industry.

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Optimizing pervious concrete pavement mixture design by using the Taguchi method

Cited by 150 publications

References 8 publications

On the Theoretical CO2 Sequestration Potential of Pervious Concrete

On the Theoretical CO2 Sequestration Potential of Pervious Concrete

Development of Vegetation-Pervious Concrete in Grid Beam System for Soil Slope Protection

Optimizing the ultimate strength of precast reinforced concrete pipes in three‐edge bearing tests

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