Manufacturing and Characterization of Asphalt Binders Designed on the bases of Polymer Modified Bitumen with Cement By-Pass Dust and Fly Ash

Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields. Vol.3. 2021
Remo Merijs-Meri, Jānis Zicāns, Tatjana Ivanova, Rita Bērziņa, Aina Bernava, Madara Žiganova, Agnese Ābele, Viktors Haritonovs

Growing environmental and social concerns demand development of environmentally friendly and resource efficient solutions in road construction sector. Consequently, the current research is devoted to valorization of two types of industrial waste – cement by-pass dust (BPD) and biomass fly ash (FA) – to develop efficient binder for construction of more durable asphalt pavements. Within the research certain amounts of BPD and FA (6, 7 and 8 wt.%) have been introduced within styrene butadiene styrene (SBS) modified 70/100 grade bitumen to develop environmentally friendly hybrid binder systems (HBS) by high shear mixing. Structure, chemical composition and thermal stability of FA and BPD fillers have been characterized. Performance of the developed HBS have been assessed by means of rheological investigations (DSR and MSCR tests). It has been observed that HBS are characterized with improved rutting resistance in comparison to neat bitumen as well as improved elastic recovery and hence low-temperature characteristics in comparison to SBS modified bituminous compositions.

Atslēgas vārdi
Bitumen, styrene-butadiene-styrene copolymer, cementby-passdust, fly ash, rheology
DOI
10.1201/9781003222910-39

Merijs-Meri, R., Zicāns, J., Ivanova, T., Bērziņa, R., Bernava, A., Žiganova, M., Ābele, A., Haritonovs, V. Manufacturing and Characterization of Asphalt Binders Designed on the bases of Polymer Modified Bitumen with Cement By-Pass Dust and Fly Ash. No: Proceedings of the Eleventh International Conference on the Bearing Capacity of Roads, Railways and Airfields. Vol.3., Norvēģija, Trondheim, 27.-30. jūnijs, 2022. London: CRC Press, 2021, 380.-386.lpp. e-ISBN 9781003222910. Pieejams: doi:10.1201/9781003222910-39

Publikācijas valoda
English (en)