A study into the processing of bitumen modified with tire crumb rubber and polymeric additives

González, Virgilio Ángel González; Martínez‐Boza, F.J.; Gallegos, C.; Pérez-Lepe, A.; Páez, Antonio

doi:10.1016/j.fuproc.2011.11.018

Cited by 63 publications

(23 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Polymer for bitumen modification include polyethylene waste (WPE), PP, tire crumb rubber [1][2][3][4][5]. From the research result, it shows a positive effect, which solves the waste problem in the beginning of this part.…”

Section: Introductionmentioning

confidence: 99%

Improvement of polypropylene (PP)-modified bitumen through lignin addition

Yuanita¹,

Hendrasetyawan

Firdaus

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

View the article online for updates and enhancements. Abstract. Polypropylene (PP) is usually added to bitumen to improve its mechanical properties, however, both of them have different chemical properties. To achieve best mechanical properties of the mixture, coupling agent such as lignin is importantly required. Lignin is an amorphous biopolymer, has bipolar characteristic due to its distinct chemical function which has carbonyl, carboxyl, hydroxyl and phenol chemical function. Otherwise, bitumen and PP have polar and nonpolar characteristic, respectively. In the previous research, it is found that lignin is potential to be used as coupling agent. In order to confirm the potential of lignin as a coupling agent, there are various compounds of lignin on PP-bitumen mixtures used in this research. This experiment consists of several stages, ranging from sample preparation, characterization of raw materials, mixing, and characterization of the PP-Modified Bitumen. This experiment used hot melt mixing to mix lignin, PP, and bitumen. The result of this experimental was analyzed by using FTIR and FESEM. The addition of lignin make Polymer Modified Bitumen (PMB) getting better mixing and increase mechanical properties. Furthermore, FESEM characterization indicated that the addition of lignin gave better mixing of PP-Bitumen. FTIR showed a new chemical structure due to the addition of lignin. From this experiment, the addition of lignin can improve mixing between PP and Bitumen. So, we can use lignin as coupling agent.

show abstract

Section: Introductionmentioning

confidence: 99%

Improvement of polypropylene (PP)-modified bitumen through lignin addition

Yuanita¹,

Hendrasetyawan

Firdaus

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…Depending on the type of polymer used, HSs can be classified in two categories: non-reactive or passive HSs (where final composition is formed by physical means) and active or reactive HSs (where chemical reactions happen involving the polymer phase and some bitumen molecules). Some representative examples of the former group are low-density polyethylene [11,12], Styrene butadiene styrene (SBS) [13] and ethylene-vinyl-acetate (EVA), ethylene butyl acrylate (EBA) [10] and of the latter, SBS-glycidylmethacrylate [14] and SBS-sulphur [9,10].…”

Section: Introductionmentioning

confidence: 99%

Hybrid Rubberised Bitumen from Reactive and Non-Reactive Ethylene Copolymers

et al. 2019

View full text Add to dashboard Cite

Hybrid modification is a relatively new concept of incorporating two or more polymeric modifiers of different nature to a bitumen, in order to take advantage of their complementary features. Aiming to this, in this paper, the so-called Hybrid Systems (HSs) were prepared by the addition of an ethylene-based copolymer (reactive or non-reactive) to a model rubberised binder (Crumb Tyre Rubber Modified Bitumen). The resulting binders (referred to as reactive and non-reactivate HSs, depending on copolymer used) were evaluated by means of thermorheological analysis, technological characterisation, fluorescence microscopy and modulated differential scanning calorimetry. From the experimental results, it may be deduced a positive synergistic effect of non-dissolved Crumb Tyre Rubber (CTR) particles and a second polymeric phase that not only improves the in-service performance but also the high-temperature storage stability. This enhancement is attributed to the development of a multiphasic system composed of non-dissolved CTR particles, a polymer-rich phase and an asphaltene-rich phase. In the case of non-reactive HSs, droplets of swollen ethylene copolymer form a well-defined dispersed phase. By contrast, reactive HSs display a different morphology, almost invisible by optical microscopy, related to the development of a chemical network that yields, by far, the highest degree of modification.

show abstract

“…Several researchers studied the CRM asphalt. It is found that the improvement of CRM asphalt depended on many factors such as the particle size, the surface characteristics of CR, blending conditions, the manner in which CR devulcanizes, the chemical/physical properties of base asphalt, as well as its source and microstructure (Yetkin, 2007;Bahia and Davies, 1994;Navarro et al, 2004;Lee et al, 2008;Cao and Chen, 2008;Shi et al, 2005;Xiang et al, 2009;González et al, 2012). Thodesena et al (2009) developed an empirical model depicting the changes in values of G*⁄/sin δ and failure temperatures.…”

Section: Introductionmentioning

confidence: 99%

Using Crump Rubber (CR) of Scrap Tire in Hot Mix Asphalt Design

Ahmad¹

2017

American Journal of Applied Sciences

View full text Add to dashboard Cite

Hot Mix Asphalt (HMA) design is one of the most important types of pavement used in highway construction. This research provided a hot mixture design method modifying with Crump Rubber Scrap Tire (CR) in order to develop and determining the optimum additive for hot mix asphalt design. All tests conducted to the raw material including specific gravity, compact test and absorption content to ensuring its quality. In this research, hot mix designed as a stander without any additives and with (4.5, 5, 5.5, 6, 6.5 and 7%) percent of asphalt content. All specimens of each asphalt percent content were tested after 24 h, according to AASHTO. The additives in this research were prepared by two methods (wet process and dry process). The results show that in dry process all additives cause a failure and the segregation was the major reason for failure. In wet process the selected wet process at 5.5% CR by weight of binder content was optimum were its raising the stability value to 65% of original stability in standard mix, which lead to decreasing the rutting effects.

show abstract

A study into the processing of bitumen modified with tire crumb rubber and polymeric additives

Cited by 63 publications

References 27 publications

Improvement of polypropylene (PP)-modified bitumen through lignin addition

Improvement of polypropylene (PP)-modified bitumen through lignin addition

Hybrid Rubberised Bitumen from Reactive and Non-Reactive Ethylene Copolymers

Using Crump Rubber (CR) of Scrap Tire in Hot Mix Asphalt Design

Contact Info

Product

Resources

About