Test methods for fine aggregate angularity considering resistance of rutting

Park, Dae Wook; Lee, Hyung Seok

doi:10.1007/bf02841996

Cited by 8 publications

(8 citation statements)

References 6 publications

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“…The percentages of Va, and VMA were found to decrease with the increase of EAFS percentage (Figures 8 and 9). It is believed that the reason for this is that EAFS form more angular in shape and the effect of aggregate interlock may increase the internal friction within the asphalt, which increase Gmm with the increase of EAFS (e.g., Topal and Sengoz, 2006;Park and Lee, 2002). In contrast, Figure 10 shows that the VFA increased with the increase of EAFS percentage.…”

Section: Componentmentioning

confidence: 94%

Laboratory Characterization of Asphalt Mixtures Containing Steel Slag

Shiha¹,

Gabr²,

El-Badawy³

2020

Bulletin of the Faculty of Engineering. Mansoura University

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The use of industrial by-products needs better understanding of their characteristics and behavior when subjected to traffic loading and environmental conditions. This paper presents a comprehensive laboratory characterization testing of asphalt mixtures containing steel slag. Electric Arc Furnace Steel Slag (EAFS) products were chosen as one of the most significant types of non-hazardous metallurgical waste, which were sourced from a steel factory in Egypt. The routine tests were conducted on EAFS materials to examine the physical, mechanical, and chemical properties, which were compared with the virgin aggregate (limestone). Blends of limestone aggregates/EAFS with percentages of 100/0, 80/20, 60/40, and 0/100% were selected to be employed as binder course layer. Asphalt mixtures were designed by Marshall method to find the optimum binder content. Test results showed that as the EAFS percentage in the mix increased, both the stability and density of the mixes increased. In addition, the flow and voids in mineral aggregates (VMA) were found to decrease with an increase in the EAFS content.

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Section: Componentmentioning

confidence: 94%

Laboratory Characterization of Asphalt Mixtures Containing Steel Slag

Shiha¹,

Gabr²,

El-Badawy³

2020

Bulletin of the Faculty of Engineering. Mansoura University

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“…The angle of internal friction (φ) is an indication of particle interlocking and, hence, particle shape and surface texture (14). Fernandes and Gouveia (15) confirmed that a higher internal friction angle of fine aggregate indicates a better interlocking mechanism and results in a more resistant granular structure.…”

Section: Direct Shear Testmentioning

confidence: 96%

“…Angularity of the fine aggregates was measured by using the Superpave FAA test and direct shear test (14).…”

Section: Angularity Of the Fine Aggregatementioning

confidence: 99%

“…Uthus et al found that a rounded series has lower roughness than the more angular series, with the flaky series giving the highest roughness value (16). A visual evaluation method was used in this study to assess the particle shape and surface texture of fine aggregate types to supplement FAA, as recommended by Park and Lee (14). The minimum FAA requirement for high-traffic volume according to the Superpave standard is 45% (15).…”

Section: Fine Aggregate Angularity Testmentioning

confidence: 99%

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Effect of Fine Aggregate Physical Properties on the Engineering Properties of Conventional and Polymer-Modified Bituminous Mixtures

Suliman

Napiah

Kamaruddin

2011

Transportation Research Record

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Most studies on hot-mix asphalt have used crushed fine aggregate and gravel; research regarding the use of mining sand or marine sand as fine aggregate is limited. This work investigates the effects of fine aggregate physical properties on the engineering properties of hot-mix asphalt. Four types of sand (quarry, river, mining, and marine sand) with two conventional binders (PEN 50/60 and PEN 80/100) and four types of polymer-modified bitumen (PMB) (PM1_82, PM1_76, PM2_82, and PM2_76) were used. Electron microscopy scanning was performed along with sieve analysis and tests for specific gravity and angularity of the fine aggregate on the different types of sand to determine their properties and thereby examine the effects of these properties when the sands were incorporated into a bituminous mixture. Marshall test results showed that fine aggregate physical properties influenced the optimum bitumen contents and engineering properties. The study also revealed that angular and rougher particles of fine aggregate produced lower voids in mineral aggregate, lower optimum bitumen content, higher shear strength, and higher density, which consequently increased the stability of the resulting mixtures. Moreover, a polymer-modified bituminous mixture enhanced stability and stiffness, reduced density, and slightly increased the voids in mineral aggregate.

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“…Having the manufactured sand mix proportions to be reproduced exactly to the proportions specified in Table 21, the values for friction angle, void ratio and dry unit weight were assumed to be the same as for the once obtained for scaled limestone aggregate. The justification to such conclusion can be argued from a friction angle point of view, where the research preformed on manufactured sand had confirmed the friction angle to be 45.2 degrees (Park and Lee, 2002). Therefore, the manufactured sand material was deemed to be suitable as a substitute for scaled limestone aggregate and use in scaled aggregate pier application.…”

Section: Pier Composition Materialsmentioning

confidence: 97%

Engineering behavior of small-scale foundation piers constructed from alternative materials

Prokudin

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Test methods for fine aggregate angularity considering resistance of rutting

Cited by 8 publications

References 6 publications

Laboratory Characterization of Asphalt Mixtures Containing Steel Slag

Laboratory Characterization of Asphalt Mixtures Containing Steel Slag

Effect of Fine Aggregate Physical Properties on the Engineering Properties of Conventional and Polymer-Modified Bituminous Mixtures

Engineering behavior of small-scale foundation piers constructed from alternative materials

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