Evaluating the effect of amorphous carbon powder on moisture susceptibility and mechanical resistance of asphalt mixtures

Ziari, Hassan; Korayem, Asghar Habibnejad; Hajiloo, Mojtaba; Nakhaei, Mostafa; Razmjou, Amir; Divandari, Hassan

doi:10.1016/j.conbuildmat.2017.06.036

Cited by 42 publications

(9 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results showed that not only did the hydrophobic powder improve the moisture sensitivity, but it also increased the rutting resistance of mix-tures. Dynamic creep and wheel tracking test results showed bitumen modified mixtures are more resistant to mechanical deformation [36].…”

Section: Literature Reviewmentioning

confidence: 99%

“…Based on the peel test, the moisture absorption and mineralogical compositions of aggregate were considered as two important factors to moisture sensitivity [35]. Ziari et al (2017) considered amorphous carbon powder, a by-product of paraffin production factory, is used as a replcement of filler (25,50,75, and 100%) and as a modifier of bitumen (5, 10, and 15%) to improve the hydrophobicity of mixtures. The results showed that not only did the hydrophobic powder improve the moisture sensitivity, but it also increased the rutting resistance of mix-tures.…”

Section: Literature Reviewmentioning

confidence: 99%

See 1 more Smart Citation

Examining the Effect of Dry Resin on Moisture Sensitivity of Asphaltic Mixtures

Jajin

Hamedi

2018

CivileJournal

View full text Add to dashboard Cite

Moisture damage in asphaltic mixtures is defined by the loss of durability and resistance caused by the effect of moisture. The most common way to improve moisture damage in asphaltic mixtures is to use anti-strip additives. This study tended to use dry resin polymer additive to make a moisture-resistant asphaltic mixture. Two types of aggregate indicating different sensitivities against moisture were studied. In order to compare the effect of this material with other anti-strip additives, this study evaluated the effect of hydrated lime on reducing moisture damage and comparing its effect with dry resin polymer additive. The effect of these materials was evaluated by mechanical and thermodynamic concepts using indirect tensile ratio and surface free energy. The results indicated that dry resin polymer used in this study increased alkaline content and reduced acidic content of bituminous surface free energy, resulting in more adhesion between acidic aggregates which are more sensitive to resistance. It also improved bitumen-aggregate adhesion and reduced strip rate. Moreover, hydrated lime as an aggregate anti-strip agent and dry resin polymer as a bituminous modifier significantly increased the resistance of warm asphalt mixtures against moisture. The results of this study show that dry resin polymer can be used as an anti-strip agent instead of hydrated lime with operational problems.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Examining the Effect of Dry Resin on Moisture Sensitivity of Asphaltic Mixtures

Jajin

Hamedi

2018

CivileJournal

View full text Add to dashboard Cite

show abstract

“…Researchers outside the post-Soviet space do not consider the hydrophobization of mineral powders as a way to improve the quality of bitumen-mineral composites. The global literature resources provide the separate studies' results of the hydrophobic fillers' effect on the asphalt concrete properties, but they are devoted to the use of non-ordinary fillers, for example, amorphous carbon powder [22] and hydrophobic diatoms [23]. Moreover, according to the results of numerous foreign studies, the nature of mineral powder does not significantly affect the properties of asphalt concrete [24][25][26].…”

Section: Of 14mentioning

confidence: 99%

Hydrophilic–Hydrophobic Properties of the Surface of Modified Carbonate Fillers for Asphalt

Lebedev,

Yadykina,

Akimov

et al. 2023

J. Compos. Sci.

View full text Add to dashboard Cite

The physicochemical modification of the filler allows changing the hydrophilic–hydrophobic properties and effectively influencing the processes occurring at the filler–binder interface, on which the physicomechanical characteristics of composites largely depend. The paper presents studies related to the modification of limestone-based filler effect on the degree of its hydrophobicity and wetting with liquids of different polarity, establishing the relationship between the characteristics of hydrophobized mineral powders and the adsorption capacity in relation to water. Using mechanochemical processing with hydrophobic components GF-1 and GF-2, it was possible to obtain fillers with a sufficiently high content of hydrophobic particles (58.2% and 85.9%, respectively). It was found that the results of the contact angle (123.6° and 114.5°, respectively) and the degree of hydrophobicity do not quite correlate with each other. It was noticed that the contact angle on the powder modified with GF-1 decreases with time. Studies of the powders’ thermal effects wetting of different polarity liquids via microcalorimetry allows us to establish that with an increase in the filler hydrophobicity degree, the integral heat of immersion decreases due to a significant decrease in the probability of chemical interactions between water and powder due to the adsorption of applied surfactants molecules on the limestone active centers. The revealed endothermic effects indicate the occurrence of physical interactions due to non-polar dispersion forces. Differences in the nature of heat release and heat absorption in modified fillers indicate significant differences in the composition and mechanism of action of the used surfactants, which affected the efficiency of hydrophobization. At the same time, a linear dependence of the moisture absorption and moisture indicators, determined by independent experiments, on the degree of hydrophobicity was established.

show abstract

“…In this line, research studies have shown that the role of filler in increasing asphalt mixes strength to moisture induced damage (adhesive failure and cohesive failure) is very significant such that some of fillers (e.g., cement fillers, amorphous carbon powder, etc) causes a reduction in moisture sensitivity as well as an increase in water desorption of asphalt mixtures, and finally they change moisture sensitivity of mixtures. Even, the change in fillers' size also affects the moisture sensitivity [15,16]. In addition, fillers concentration and their minerals type can affect mastic stiffness [17].…”

Section: Literature Reviewmentioning

confidence: 99%

Comparing the Effect of Nanomaterial and Traditional Fillers on the Asphalt Mixture Properties

2019

View full text Add to dashboard Cite

Several parameters affect asphalt mix performance against loading and environmental conditions. Minor changes in the filler amount or type can cause obvious changes in the asphalt mixture properties. Accordingly, in this research attempts have been made to optimally make asphalt mixture strong against loading and environmental conditions by changing the type, size and percentage of filler used in asphalt mixture. In this line, the effect of two types of cement and nano-silica fillers in two different percentages was investigated and compared as an alternative for part of the main filler in asphalt mixture samples made by two types of limestone and granite aggregate. Cement filler by 2% and 4% of the aggregate mass as the alternative for part of the main filler is added to stone materials before mixing with binder, but nano-silica filler by 2% and4 % of weight of the binder as the alternative for part of the main filler is added to binder and a modified and homogeneous binder is produced using a high speed mixer. In the following, considering the optimum binder content for each mixture, resilient modulus tests were conducted to determine the strength performance against loading and indirect tensile strength ratio was used to determine moisture sensitivity of asphalt mixtures. Results obtained from resilient modulus tests show that the use of nano-silica and cement has been capable of favorably improving the resilient modulus of samples containing these two types of fillers. The improvement of the resilient modulus of samples containing nano-silica is very significant. Additionally, the studies conducted based on the indirect tensile strength ratio show that both types of alternative fillers, especially cement has been capable of desirably improve the strength of asphalt mixtures against moisture damage.

show abstract

Evaluating the effect of amorphous carbon powder on moisture susceptibility and mechanical resistance of asphalt mixtures

Cited by 42 publications

References 15 publications

Examining the Effect of Dry Resin on Moisture Sensitivity of Asphaltic Mixtures

Examining the Effect of Dry Resin on Moisture Sensitivity of Asphaltic Mixtures

Hydrophilic–Hydrophobic Properties of the Surface of Modified Carbonate Fillers for Asphalt

Comparing the Effect of Nanomaterial and Traditional Fillers on the Asphalt Mixture Properties

Contact Info

Product

Resources

About