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Abstract—Stone Matrix Asphalt (SMA) consists of coarse aggregate skeleton with high binder content and fiber intended to increase the durability and decrease the rutting of the mix, because of high binder content which leads to draindown. Topcel fiber has been used in SMA to reduce the draindown of SMA mixes. Gyratory Compactor is used to compact the specimen at different air void content such as short term aged specimen (7% air voids) and Long Term Aged specimen (4% Air Voids). This investigation focused on evaluating the effect of the ageing of SMA mixtures by keeping it in oven at specified temperature. In the current study, two aggregate gradations, with nominal maximum aggregate sizes (NMAS) 19 and 13.2 mm as binder and wearing course were adopted to prepare SMA mixtures and their laboratory performances were compared. Further the effect of ageing on the rutting performance and the tensile strength ratio of the SMA specimen was evaluated. The ITS value for short term and long term aged (4% air void) for binder and wearing course is 20-22% higher than short term aged (7% air void) for binder and wearing course sample. Thus short term and long term aged (4% air void) there is no significant change in TSR values as compared to short term aged (7% air void) where there is significant difference in TSR values. Hence rutting performance of short term and long term aged (4% air void) sample is almost similar as compared to short term aged (7% air void) which failed earlier due to high air voids representing that effective stone to stone contact is not established. The long term aged sample (4% air void) behaviour shows that influence of ageing affect the strength as well as resistance to permanent deformation as material performs similar when compared to short term aged sample
Keywords:
SMA, Cellulose fiber, Gyratory Compactor, Ageing.
Cite Article:
"INFLUENCE OF AGEING ON THE PERFORMANCE OF STONE MATRIX ASPHALT STABILIZED WITH CELLULOSE FIBER", International Journal for Research Trends and Innovation (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 12, page no.141 - 148, December-2022, Available :http://www.ijrti.org/papers/IJRTI2212021.pdf
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ISSN:
2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator