Fundamental properties of bitumen binders containing novel cellulose-based poly-functional fibres

Eskandarsefat, Shahin; Hofko, Bernhard; Rossi, Cesare Oliviero; Sangiorgi, Cesare

doi:10.1016/j.compositesb.2018.11.031

Cited by 33 publications

(15 citation statements)

References 13 publications

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“…Simultaneously, the greater the amount of biopolymer that was used, the larger the change was. A similar trend was also observed for bitumen modified with cellulose, which also belongs to the group of biopolymers [ 20 ]. It is worth noting that the bitumen modified with synthetic SBS polymer used in this study (PMB 25/50-60) is also characterised by quite low penetration, equal to 38 (0.1 mm) ( Table 1 ).…”

Section: Resultssupporting

confidence: 79%

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Use of New Green Bitumen Modifier for Asphalt Mixtures Recycling

et al. 2022

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Nowadays, an increasing amount of reclaimed asphalt pavement (RAP) is being produced from the reconstruction and/or modernisation of asphalt pavements. It is necessary to recycle the obtained RAP according to principles of sustainable development. Therefore, this work includes the design of asphalt mixtures containing RAP with bio-derived modifier and evaluates their performance properties. Crosslinked sodium alginate was applied for bitumen modification. The studies were carried out for four different modifier contents, i.e., 1.0%, 2.5%, 4.0% and 5.5%, with and without crosslinking agent. On the basis of the binder test results, the optimal amount of the additive was found to be 2.5%. The nanostructure analysis for the base and modified binders indicated a dual crosslinked biopolymer effect. As a result of the bee structure size decrease, the binder softening effect was observed. The asphalt mix properties showed that application of biopolymer-modified binder is fully justified due to the functional parameters of the mixture, especially the increased resistance to water and frost by about 9%.

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Section: Resultssupporting

confidence: 79%

“…Moreover, the acetylated cellulose addition reduces bitumen temperature sensitivity, while simultaneously maintaining its elastic behaviour [ 19 ]. The cellulose addition also influences basic bitumen properties by reducing its penetration, as well as raising its softening point and dynamic viscosity [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Use of New Green Bitumen Modifier for Asphalt Mixtures Recycling

et al. 2022

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“…Numerous functional fiber-based textiles could be used for smart textile sensors, or as wearable energy harvesters and electromagnetic shields due to characteristics such as shape memory effect, variable stiffness, and piezoelectricity. [1][2][3][4][5][6][7] Shape memory polymers (SMP), one of the main kinds of functional materials, can hold a transitory shape then return to their original shape as a response to certain external stimuli. SMP can thus be used to develop smart textiles with remarkable properties, for example, shape recovery, self-cleaning, smart control, and shape fitting.…”

Section: Introductionmentioning

confidence: 99%

“…Functional fibers and yarns have attracted a lot of attention due to the increasing demand of fiber‐based materials with unique properties and high flexibility. Numerous functional fiber‐based textiles could be used for smart textile sensors, or as wearable energy harvesters and electromagnetic shields due to characteristics such as shape memory effect, variable stiffness, and piezoelectricity 1–7 . Shape memory polymers (SMP), one of the main kinds of functional materials, can hold a transitory shape then return to their original shape as a response to certain external stimuli.…”

Section: Introductionmentioning

confidence: 99%

Shape memory polyurethane‐based electrospun yarns for thermo‐responsive actuation

Guan

Xia

2021

J of Applied Polymer Sci

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Electrospun nanofibrous yarns of shape memory polyurethane (SMPU)-based nanofibers were successfully prepared. The electrospun yarns were analyzed to assess the dependence of mechanical and shape memory properties on the yarn twist angle. The yarn with a 60 twist angle has high compactness and density, leading to increased tensile strength, elastic modulus, and strain energy. In addition, this yarn shows a significant improvement in the shape memory recovery stress compared with the non-twisted SMPU nanofibers. Moreover, thermal stimuli allowed for the 60 twisted yarn to lift a load that is 103 times heavier than itself. This yarn had a shape recovery stress of 0.61 MPa and generated a 7.95 mJ recovery energy. The results suggest the electrospun yarns could be used as actuators and sensing devices in the medical and biological fields.

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“…Considering the wide use of fibers, a new market to recycle waste in the production process of new cellulose-based fibers has been generated, taking into account the good properties of the waste in terms of binder absorption, when compared to mineral fibers [26][27][28][29][30][31]. In order to evaluate the effects given by the addition of the grinded brand new CFs in the bituminous mixture, two different SMAs were produced in the laboratory and tested: one (labelled SMA0) with common cellulose stabilizing fibers, and another (labelled SMAF) containing CFs.…”

Section: Introductionmentioning

confidence: 99%

A Preliminary Laboratory Evaluation on the Use of Shredded Cigarette Filters as Stabilizing Fibers for Stone Mastic Asphalts

Tataranni

Sangiorgi

2021

Applied Sciences

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Cigarette butts can be considered as one of the most common contemporary sources of waste, considering the large consumption of cigarettes all over the world. Despite the fact that different solutions have been developed and tested in the recent years aiming to recycle them, cigarette butts are currently landfilled and incinerated. Following the circular economy principles, the experimental application proposed in this paper is an exploratory investigation on the use of shredded cigarette filters as sustainable alternative to the addition of fibers into Stone Mastic Asphalts (SMAs). This represents the preliminary step for a wider research project, aiming to find a possible recycling solution for cigarette butts as fibers in bituminous materials. The use of fibers is a common and well-established solution for the production of high bitumen content mixtures. The fibers have a double function: acting, generally, as a stabilizing agent and, where possible, improving the mechanical performance of the bituminous mixtures. In the present research, two different SMAs were produced and tested aiming to analyze the effects given by the addition of the shredded cigarette filters. The first asphalt concrete, produced with traditional cellulose fibers was taken as a reference mixture, while the experimental mixture was produced with the shredded cigarette filters. The data highlight interesting and promising results for future development, making the use of waste cigarette filters a potential eco-friendly alternative to common cellulose fibers for SMAs.

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Fundamental properties of bitumen binders containing novel cellulose-based poly-functional fibres

Cited by 33 publications

References 13 publications

Use of New Green Bitumen Modifier for Asphalt Mixtures Recycling

Use of New Green Bitumen Modifier for Asphalt Mixtures Recycling

Shape memory polyurethane‐based electrospun yarns for thermo‐responsive actuation

A Preliminary Laboratory Evaluation on the Use of Shredded Cigarette Filters as Stabilizing Fibers for Stone Mastic Asphalts

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