Water susceptibility of asphalt mixtures as influenced by hydraulically active fillers

Ekblad, Jonas; Lundström, Robert; Simonsen, Erik

doi:10.1617/s11527-013-0220-4

Cited by 14 publications

(5 citation statements)

References 17 publications

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“…For this purpose, high-temperature dedicated ultrasonic transducers will be needed. Nevertheless, such a value is in quite good agreement with values given in [35]. In this communication a value between 6−7 Pa.s is reported for T = 100 • C Furthermore, an extrapolation of Newtonian viscosity given in [13] in the range 50−90 • C to 110 • C leads to 1.5 Pa.s which is in very good agreement with our ultrasonic estimation.…”

Section: Viscositysupporting

confidence: 92%

Rheological investigation of bitumen, used for radioactive waste conditioning, with ultrasonic waves

Laux,

Toulgoat,

Millot

et al. 2024

EPJ Nuclear Sci. Technol.

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In the context of bituminized radioactive waste storage and disposal, nucleation monitoring at room temperature and radiolysis bubbles migration at elevated temperature is crucial particularly in fire scenarios where bubble may impact thermal properties. Traditional methods are limited by the opacity of bitumen. To gain a deeper insight into bitumen rheology and ultrasonic wave propagation, we conducted a pilot study using ultrasonic testing cells spanning temperatures from 10°C to 60°C. Ultrasonic velocities and attenuations were measured at around 500 kHz in a 70/100 grade bitumen. Rheological information was deduced with the Time-Temperature Superposition principle and a behaviour model was proposed to describe bitumen across a wide frequency range. Notably, our study reveals a transition point around 50°C to 60°C, where bitumen’s liquid behaviour becomes dominant. The shear-thinning characteristics gradually give way to a more Newtonian response. Using the proposed model, ultrasonic attenuation and viscosity were estimated at 110°C. Acceptable ultrasonic frequencies for monitoring the nucleation and migration of radiolysis bubbles are discussed for future investigations. These findings have significant implications for safety measures and a deeper understanding of bitumen response within the realm of radioactive waste management.

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Section: Viscositysupporting

confidence: 92%

Rheological investigation of bitumen, used for radioactive waste conditioning, with ultrasonic waves

Laux,

Toulgoat,

Millot

et al. 2024

EPJ Nuclear Sci. Technol.

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“…4−9 Also, there are several research articles which point out that some industrial wastes and byproducts could be utilized in the production of stone mastic asphalt. 10−13 investigation results of potential waste materials as substitute for the filler from the asphalt mixtures including fly ash and slag, 14 recycled concrete powder, 15 cement kiln dust, 16 waste glass, 17 brick powder, 18 rice husk ash, 7 coal waste powder, 19 oil shale, 20 waste bleaching clay, 21 paper industry wastes, 22 recycled waste lime, 23 phosphate waste filler, 24 municipal solid waste incineration ash, 25 baghouse fines, 26 oil shale fly ash, 27 waste ceramic materials, 28 waste marble materials, 29−31 and waste tires. 32,33 A particular bituminous material is the bituminous mastic, which is used to fill cracks in roads to seal them against environmental influences.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Bituminous materials such as asphalt make a large part of materials used in construction, and there are already many published results related to the utilization of industrial waste as filler in bituminous materials. − Also, there are several research articles which point out that some industrial wastes and byproducts could be utilized in the production of stone mastic asphalt. − Some research reports have presented the investigation results of potential waste materials as substitute for the filler from the asphalt mixtures including fly ash and slag, recycled concrete powder, cement kiln dust, waste glass, brick powder, rice husk ash, coal waste powder, oil shale, waste bleaching clay, paper industry wastes, recycled waste lime, phosphate waste filler, municipal solid waste incineration ash, baghouse fines, oil shale fly ash, waste ceramic materials, waste marble materials, − and waste tires. , …”

Section: Introductionmentioning

confidence: 99%

Industrial Wastes as Filler in Bituminous Materials for Construction Industry: Toward Circular Economy

Radu,

Dima,

Pintoi

et al. 2023

ACS Sustainable Chem. Eng.

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A circular economy creates a connection between extraction, manufacturing, and disposal of materials and reduces the pressure on the consumption of natural resources. Thus, there is a need for using materials as long as possible and recycling them back into economy. As an opportunity for circular economy, this study describes the preparation of a new composite material based on waste as an alternative to the bituminous mastic used presently in the construction industry. The new material replaces the commercial filler prepared from nonrenewable resources with a composite based on two industrial wastes (stone dust and waste cooking oil). The simplicity of the preparation method along with environmental and economic advantages encourages in using this modified composite material as an effective replacement in the mastic currently used. Characterization of materials with different contents of the waste composite in terms of their chemical and physical properties and in reaction with bitumen was done by X-ray photoemission spectroscopy (XPS), scanning electron microscopy (SEM)/energy-dispersive X-ray (EDX), Fourier-transform infrared (FTIR), porosity, and surface area measurements. It was observed that stone dust has a higher specific heat capacity than the commercial filler, which may cause the final mastic to heat up more slowly after being exposed to sunlight than the mastic currently used. Selected bituminous mastic compositions were tested at laboratory level and compared to the corresponding standard requirements for commercial products by determining the density, softening point, elastic recovery, and cone penetration. In order to study their compression and dynamic shear response, a dynamic mechanical analyzer (DMA) was used. The results showed that substituting the filler with the waste composite, regardless of the ratio, does not significantly affect the properties of the standard bituminous mastic.

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“…Several research reports dealing with the investigation of potential waste materials able to act as traditional filler materials have been presented in the literature, including fly ash and slag [24], recycled concrete powder [25], cement kiln dust [26], waste glass [27], brick powder [28], rice husk ash [29], coal waste powder [30], oil shale [31], waste bleaching clay [32], paper industry wastes [33], recycled waste lime [34], phosphate waste filler [35], municipal solid waste incineration ash [36][37][38], baghouse fines [39], oil shale fly ash [40], waste ceramic materials [41], waste marble materials [42][43][44][45], and waste tires [46,47]. It has also been reported that the properties of bituminous mastic are closely related to the type and percentage of fillers in the asphalt mix [48].…”

Section: Introductionmentioning

confidence: 99%

Industrial Waste Materials as Alternative Fillers in Asphalt Mixtures

Dimulescu¹,

Burlacu

2021

Sustainability

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One important role in asphalt mixture performances is represented by the filler content and characteristics. This research aims to assess the potential usage of industrial waste powders as replacers of the standard limestone filler in asphalt mixture composition. First of all, an SEM and EDX analysis was carried out to figure whether this industrial waste can be used in asphalt mixture composition by comparing the results of the industrial wastes with the properties of the standard filler. After a chemical evaluation, laboratory investigations were carried out to characterize the materials in terms of geometrical and physical properties. The research study involved sixteen dosages of limestone filler with four different types of industrial waste powders in different percentages used. The results obtained from laboratory testing suggested that the inclusion of industrial wastes in the manufacture of asphaltic mixtures may have benefits for the construction industry, the waste management sector, and also for the environment.

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Water susceptibility of asphalt mixtures as influenced by hydraulically active fillers

Cited by 14 publications

References 17 publications

Rheological investigation of bitumen, used for radioactive waste conditioning, with ultrasonic waves

Rheological investigation of bitumen, used for radioactive waste conditioning, with ultrasonic waves

Industrial Wastes as Filler in Bituminous Materials for Construction Industry: Toward Circular Economy

Industrial Waste Materials as Alternative Fillers in Asphalt Mixtures

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