Aging behaviors of bitumen degraded by the microbial consortium on bituminous pavement

Zhang, Hanshuai; Hu, Zhihui; Hou, Shifeng; Xu, Tao

doi:10.1016/j.conbuildmat.2020.119333

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…This discontinuous grading gives them greater resistance to plastic strains, a better surface texture, greater friction of the tire with the pavement [22], greater permeability to evacuate rainwater, and even greater absorption of noise caused by the contact of the tire with the pavement. At the same time, the incorporation of a higher percentage of bitumen compared to other types of discontinuous grading bituminous mixtures, gives it greater resistance to repetitive traction loads and consequently a longer working life [23,24]. This higher percentage of bitumen is achieved by the addition of fibers.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Use of Electric Arc Furnace Slag and Ladle Furnace Slag in Stone Mastic Asphalt Mixes with Discarded Cellulose Fibers from the Papermaking Industry

Terrones-Saeta

Suárez-Macías

Iglesias-Godino

et al. 2020

Metals

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The construction sector is one of the most demanding of raw materials that exist at present. In turn, the greenhouse gas emissions that it produces are important. Therefore, at present there are several lines of research in which industrial by-products are incorporated for the manufacture of bituminous mixtures and the reduction of CO2 emissions, framed inside the circular economy. On the base of the aforementioned, in this research, bituminous mixtures of the Stone Mastic Asphalt type were developed with electric arc furnace slag, ladle furnace slag and discarded cellulose fibers from the papermaking industry. To this end, the waste is first characterized physically and chemically, and its properties evaluated for use in bituminous mixtures. Later, different groups of samples are conformed with conventional materials and with the waste in order to be able to compare the physical and mechanical properties of the obtained bituminous mixtures. The physical tests carried out were bulk density, maximum density and void index, as well as the Marshall test for the evaluation of the strength and plastic deformations of all the bituminous mixtures manufactured. The study and evaluation of the results showed that the incorporation of slag makes it possible to absorb a greater percentage of bitumen and obtain better mechanical properties, while maintaining a similar deformation and void content. Therefore, it is feasible to use the mentioned slags to create sustainable, resistant and suitable pavements for important traffic.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Use of Electric Arc Furnace Slag and Ladle Furnace Slag in Stone Mastic Asphalt Mixes with Discarded Cellulose Fibers from the Papermaking Industry

Terrones-Saeta

Suárez-Macías

Iglesias-Godino

et al. 2020

Metals

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show abstract

“…It is common to design and build pavements with high performance and large investments that are not subsequently cared for in their useful life. On the other hand, the pavement is an element that suffers throughout its service life, whether due to the loads of heavy traffic, vehicles, or exposure to the elements [1,2]. Consequently, the characteristics that it had at the beginning of its construction have not been maintained unchanged during time.…”

Section: Introductionmentioning

confidence: 99%

Development of Slurry Surfacing with Electric Arc Furnace Slag for Pavements with Friction Problems

et al. 2020

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Pavement maintenance is an essential activity for maintaining the quality of the pavements. It is common for the ageing pavement to present problems of friction, so a proper solution must be provided. In this work, electric arc furnace slags are incorporated in slurry surfacing to provide adequate friction with this technique. The electric arc furnace slag was studied with physical, chemical, and mechanical tests to evaluate its suitability in the formation of the bituminous mixture. At the same time, different groups of samples were made with increasing percentages of bitumen emulsion and slag as coarse aggregate, determining the wear of the different families and the cohesion. The results reflected the excellent characteristics of the electric arc furnace slags, and an optimal combination of materials (slag, aggregate, water, and bitumen emulsion) could be obtained to develop slurry surfacing applicable to important traffic roads. This provided a use for the electric arc furnace slag in which its mechanical properties were used and a sustainable bituminous mixture with excellent characteristics and respectful of the environment was developed.

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Inhibitory effects of developed composite anti-aging agent on microbial degradation of asphalt

Zhang

Xia

et al. 2021

Construction and Building Materials

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Aging behaviors of bitumen degraded by the microbial consortium on bituminous pavement

Cited by 3 publications

References 33 publications

Evaluation of the Use of Electric Arc Furnace Slag and Ladle Furnace Slag in Stone Mastic Asphalt Mixes with Discarded Cellulose Fibers from the Papermaking Industry

Evaluation of the Use of Electric Arc Furnace Slag and Ladle Furnace Slag in Stone Mastic Asphalt Mixes with Discarded Cellulose Fibers from the Papermaking Industry

Development of Slurry Surfacing with Electric Arc Furnace Slag for Pavements with Friction Problems

Inhibitory effects of developed composite anti-aging agent on microbial degradation of asphalt

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