Experimental investigation on mineral and organic fibers effect on resilient modulus and dynamic creep of stone matrix asphalt and continuous graded mixtures in three temperature levels

Lavasani, Mohammad; Namin, Manouchehr Latifi; Fartash, Homa

doi:10.1016/j.conbuildmat.2015.07.146

Cited by 46 publications

(13 citation statements)

References 18 publications

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“…Furthermore, drawback of agglomeration of fibres during the dry method is less than the wet method . In the combination of dry and wet methods, aggregates and binder are initially mixed with each other, and fibres are then added to the mixture of them . It should be pointed out that all the above‐mentioned methods were assessed in the current research and the last method (i.e., combination of the wet and dry methods) was finally chosen because of less fibre agglomeration and good fibre dispersion in the mixture.…”

Section: Asphalt Mixtures and Specimen Preparationmentioning

confidence: 99%

The effect of basalt fibres on fracture toughness of asphalt mixture

Pirmohammad

Amani

Shokorlou

2020

Fatigue Fract Eng Mat Struct

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This paper deals with the effect of basalt fibres on fracture toughness of asphalt mixture. For this purpose, basalt fibres with three different contents (i.e., 0.1%, 0.2%, and 0.3% by weight of asphalt mixture) and lengths (ie, 4, 8, and 12 mm) are incorporated into asphalt mixture to prepare fibre-reinforced asphalt mixtures. Fracture tests are then carried out on these mixtures under four different modes of loading (i.e., pure mode I, pure mode II, and two mixed modes of I/II) using semicircular bend (SCB) specimens. The results exhibit that the fracture toughness increases with the enhancement of the fibre content. In addition, increase in the length of basalt fibre results in reduction of the fracture toughness of asphalt mixture. However, the asphalt mixture containing 0.3% of basalt fibres with the length of 4 mm shows the highest fracture toughness compared with other mixtures. It is also found that the basalt fibre improves mode I fracture toughness of asphalt mixtures more significantly than mode II one. Statistical analysis is also performed on the experimental data. Analysis of ANOVA demonstrates that all the three factors investigated in this study (i.e., length of basalt fibre, content of basalt fibre, and mode of loading) have significant influence on the fracture toughness of asphalt mixtures. K E Y W O R D Sasphalt mixture, basalt fibre, fracture toughness, mixed mode I/II loading

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Section: Asphalt Mixtures and Specimen Preparationmentioning

confidence: 99%

The effect of basalt fibres on fracture toughness of asphalt mixture

Pirmohammad

Amani

Shokorlou

2020

Fatigue Fract Eng Mat Struct

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“…Requirements regarding parameters for road design are still under development. Offshore geotechnical engineering and foundation designers also seek for material characteristics under cyclic excitation (O'Reilly and Brown 1991, Sas et al 2014, Lavasani et al 2015.…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of the multistage cyclic loading test on resilient modulus value64

Sas¹,

Głuchowski²,

Soból³

et al. 2016

Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation

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Analysis of the multistage cyclic loading test on resilient modulus value. Upon cyclic excitation of soil mass, two types of strain can be recognized, namely elastic and plastic one. Proper analysis of these two types of deformations can help engineers in designing more reliable structures. In this study, a multistage uniaxial cyclic loading in unconfined conditions was performed. Tests were performed in order to characterize strain response to repeated excitation. Soil sample under cyclic loading was recognized as exhibiting the symptoms of a plastic strain growth during the cyclic loading process with exponential manner, when compared to number of cycles. Soil in this study was reconstituted and compacted by using the Proctor method to simulate conditions similar to those affecting the road subbase. The soil was recognized as sandy clay. Results were analysed and a proposition of empirical formula for plastic strain calculation with the use of characteristic stress values was presented. The resilient modulus values were also calculated. The Mr value was within range from 45 to 105 MPa. The conclusions concerning the cyclically loaded soil in uniaxial conditions were presented.

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“…Previous studies have shown that additives can improve the performance of asphalt mixtures mixes [11,30,31]. Various additives such as bitumen emulsion, cement, quick lime, coal waste (ash), silica fume or fly ash have been used during the compaction of the recycled mixtures [2,10,11,13,30,32].…”

Section: Application Of Additives In Cir Mixturesmentioning

confidence: 99%