Laboratory investigation on volume proportioning scheme of mineral fillers in asphalt mixture

Kuity, Ambika; Jayaprakasan, Sandhya; Das, Animesh

doi:10.1016/j.conbuildmat.2014.07.012

Cited by 52 publications

(21 citation statements)

References 17 publications

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“…The physical properties of fillers and asphalt binder are presented in the Tables 1 and 2 respectively. The impact test (IS 2386, Part-IV) and Los Angeles abrasive test (IS 2386, Part-IV) of aggregate are observed to be 13.06 and 15.35 % respectively (Kuity et al 2014). Bituminous concrete (BC) grade II as per Indian specification is adopted as aggregate gradation (MORT&H 2013).…”

Section: Experimental Studymentioning

confidence: 99%

“…Limited literature is available which identifies the above issue and proposes use of volume proportioning while estimating the filler quantity in the asphalt mix (Kuity et al 2014;Zulkati et al 2012). However, measure of volume is affected by the level of compaction applied.…”

Section: Introductionmentioning

confidence: 99%

“…are being utilized as alternative to conventional fillers (Sharma et al 2010;Das and Swamy 2014;Huang et al 2009;Karasahin and Terzi 2007;Kuity et al 2014;Mills-Beale and You 2010;Sargin et al 2013;Taha et al 2002;Xue et al 2009). Given that the specific gravity values of some of these alternative fillers may significantly be different than the conventional ones, use of weight proportioning may result in application of undesirably low or high quantity of filler in the mix.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Appropriate Filler Quantity in Asphalt Mix from Microscopic Studies

Kuity

Das

2015

RILEM Bookseries

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The type and quantity of filler influences the property of the asphalt mix. The filler quantity, similar to fine and coarser aggregates, is typically specified in proportions of weight. If the specific gravity of the filler is significantly different than the rest of the aggregates (for example, alternative fillers derived from industrial and domestic wastes), weight proportioning may lead to undesirably low or high quantity of filler in the mix. To investigate this issue further, in the present work filler concentration (in terms of percentage area occupancy) is studied at the microscopic level with the help of a scanning electron microscope. Three different types of fillers are chosen and are separately added to asphalt mix in varying proportions. The indirect tensile strength values and the corresponding filler concentration levels of these samples are noted. From limited data gathered in the present study, it appears that the average filler concentration values corresponding to the maximum indirect tensile strength levels for the mixes are statistically same. That means, even though optimum filler quantities (by weight) are different for these three mixes, the filler concentration values are almost the same. Subsequently, design chart is suggested to estimate the optimum quantity (by weight) of filler for asphalt mix for any given type of filler.

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Section: Experimental Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimation of Appropriate Filler Quantity in Asphalt Mix from Microscopic Studies

Kuity

Das

2015

RILEM Bookseries

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“…The particle density of mud waste is the highest due to its mineralogical composition. If other traditional fillers are taken as a reference, particle density is equal to 2.72 Mg/m 3 for hydraulic lime, 2.32 Mg/m 3 for hydrated lime, 3.29 Mg/m 3 for Portland cement and 2.87 Mg/m 3 for basaltic filler [47,48].…”

Section: Particle Density (En 1097-7)mentioning

confidence: 99%

Alternative Fillers for the Production of Bituminous Mixtures: A Screening Investigation on Waste Powders

Sangiorgi¹,

Tataranni²,

Mazzotta³

et al. 2017

Coatings

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There has been a significant increase in the demand for using recycled materials in construction because of the lack and limitation of available natural resources. A number of industrial and domestic waste products are being used in the replacement of traditional materials for road construction, and many studies have been carried out in recent years on the use of different recycled materials in substitution of conventional fillers in Asphalt Concretes (AC). The aim of this laboratory research is to analyze the physical characteristics of three different recycled fillers and compare them with those of a traditional limestone filler. The alternative fillers presented in this paper are: a waste bleaching clay that comes from two consecutive stages in the industrial process for decolouring vegetable oils and producing biogas (Ud filler), a dried mud waste from a tungsten mine (MW filler) and a recycled glass powder (Gl filler). Results show significant differences between the fillers, and, in particular, Rigden Voids (RV) seem to have the largest potential influence on the rheology of ACs.

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“…Numerous studies reveal the significant influence of the physical (specific gravity, particle shape, size, texture, size distribution, porosity) and chemical (mineralogy, active clay content) properties of a filler on primary pavement distresses (rutting, fatigue, low-temperature cracking, aging, and moisture susceptibility) [22][23][24][25][26]. Choudhary et al [22] investigated waste materials as fillers in a graded bituminous macadam mix, i.e., copper tailings, carbide lime, brick dust, rice straw ash, red mud, limestone dust, and glass powder which, when mixed with fines, had a superior stiffness and cracking resistance, while mixtures with calcium predominance presented superior adhesion and moisture resistance.…”

Section: Introductionmentioning

confidence: 99%

Making Paving Stones from Copper Mine Tailings as Aggregates

Lam

Zetola

Ramírez

et al. 2020

IJERPH

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Copper mining, the central axis of Chile’s economic development, produces a large number of tailings, which become a potential environmental risk. This study aims to evaluate the mechanical properties resulting from the making of Portland cement mixtures with tailings as aggregates so that they can be eventually used in paving stones for building inactive tailings dams. Tailings coming from two dams at a concentration plant located in Taltal (Chile) were used. Currently, Dam 1 is inactive, while Dam 2 is active. The tailings samples obtained from both dams were granulometrically characterized by sieving. In addition, pH, humidity, Eh, and mineralogical assays (sulfides, oxides, sulfates, carbonates, phosphates, and silicates) were measured. The fines content of the tailings from Dams 1 and 2 with a sieve size of N°200 ASTM were 76.2% and 29.6%, respectively. Therefore, owing to their high percentage of fines, they cannot be as used as concrete aggregates. Aggregates must contain a maximum percentage of fines so that mortars and concrete can meet Chilean standards. In this paper, to comply with a 7% and 15% fines content lower than 0.075 mm, tailings materials were mixed with conventional aggregates containing very little fines. In addition, a reference mixture was made with only tailings aggregates with and without a superplasticizer additive. To measure the mixtures of cement, aggregates, and tailings, bending and compression strength assays were made of the specimens after a 28-day curing, according to the Chilean standard. The results of the study show that the addition of only part of the tailings to the mixture increases bending strength by 26% and compression strength by 180% compared with the reference mortar, with a fines content lower than 0.075 mm in the 7% mixture, thus allowing paving stone manufacture with tailings materials. In addition, it was possible to increase the workability of the reference mixture by using superplasticizers as additives.

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Laboratory investigation on volume proportioning scheme of mineral fillers in asphalt mixture

Cited by 52 publications

References 17 publications

Estimation of Appropriate Filler Quantity in Asphalt Mix from Microscopic Studies

Estimation of Appropriate Filler Quantity in Asphalt Mix from Microscopic Studies

Alternative Fillers for the Production of Bituminous Mixtures: A Screening Investigation on Waste Powders

Making Paving Stones from Copper Mine Tailings as Aggregates

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