Mechanical Properties Assessment of Concrete Containing Reclaimed Asphalt Pavement Using the Superpave Indirect Tensile Strength Test

Jalan beraspal merupakan salah satu prasarana transportasi utama di Indonesia yang belum sepenuhnya mencapai kondisi yang aman dan nyaman dimana sering dijumpai kondisi permukaan jalan yang tidak rata, bergelombang dan berlubang yang menyebabkan ketidaknyamanan bagi penggunanya. Kegiatan perbaikan dan pemeliharaan struktur perkerasan jalan, dalam hal ini jalan beraspal, menjadi sangat penting untuk kelangsungan kegiatan transportasi. Pesatnya perkembangan teknologi di bidang transportasi telah melahirkan satu terobosan baru tentang teknologi penanganan kerusakan jalan yaitu dengan cara daur ulang lapis perkerasan aspal yang sudah ada. Metode daur ulang ini memiliki keuntungan antara lain dapat menghemat biaya, merupakan green technology, memiliki kualitas yang sama dengan material baru, dan menjaga geometris perkerasan karena tebal perkerasan yang sama. Penentuan kadar air terbaik dalam campuran foam bitumen terhadap nilai kuat tarik tak langsung (ITS) serta kuat tekan bebas (UCS) untuk campuran lapis pondasi daur ulang. Dilakukan secara bertahap, dari pengujian untuk bahan penyusun campuran yaitu agregat baru, Reclaimed Asphalt Pavement (RAP), filler, aspal, dan foam bitumen. Kemudian uji terhadap campuran padat meliputi Uji Marshall, Uji Indirect Tensile Strength (ITS) dan Uji Unconfined Compressive Strength (UCS). Kadar air dan kadar foam bitumen sangat berpengaruh terhadap kuat tarik tak langsung (Indirect Tensile Strength/ITS) serta kuat tekan bebas (Unconfined Compressive Strength/UCS) dari campuran dingin daur ulang dengan foam bitumen. Nilai ITS, TSR dan UCS yang dicapai menggunakan kadar foam 2% dan kadar air optimum terbaik yang diketahui dalam penelitian sebesar 100% terhadap Kadar Air Optimum (KAO) yaitu masing- masing 301,04 kPa, 76,36%, dan 723,49 kPa

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Evaluation of Fatigue Potential for Crumb Rubber Modified Bitumen in Stone Mastic Asphalt Mixes

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.c6470.0910321 ◽

2021 ◽

Vol 10 (3) ◽

pp. 170-183

Author(s):

Anusha T M ◽

◽

Sharath Kumar M D ◽

Dr. H S Jagadeesh ◽

◽

...

Keyword(s):

Tensile Strength ◽

Fatigue Test ◽

Asphalt Pavement ◽

Indirect Tensile Strength ◽

Engine Oil ◽

Reclaimed Asphalt Pavement ◽

Test Results ◽

Reclaimed Asphalt ◽

Indirect Tensile ◽

Marshall Stability

SMA is a gap graded mix composed of a high concentration of coarse aggregate that is held together in a thick asphalt film by a matrix of mineral filler and stabilizers. Since natural aggregates have become expensive, hence Reclaimed Asphalt Pavement (RAP) can be reused in pavement construction to reduce the environmental hazardous due to disposal problems. Since the RAP contains used aggregates, it is highly prone to fatigue, thermal and reflective cracking effect. Rheological and chemical properties of aged bitumen in RAP can be enhanced by use of untreated waste oils such as waste engine oil as rejuvenators. This research presents a study on fatigue performance of SMA mix with Reclaimed Asphalt Pavement (RAP) materials with and without rejuvenators and results were compared with conventional SMA mix. The materials used were first characterized by common laboratory tests. Then the three SMA mixes are tested using several laboratory test procedures: Marshall Stability, indirect tensile strength, moisture susceptibility, and indirect tension fatigue test. The optimum proportions of the of the mixes with highest stability are selected from the Marshall stability test. The indirect tensile strength test results show that the SMA mix replaced with RAP without rejuvenators showed higher tensile strength ratio and resistance to moisture damage when compared to conventional mix and optimum RAP replacement mix with rejuvenators. The fatigue test was conducted for the three optimum mixes at different temperature and stresses. The fatigue test results showed that at lower temperature and stresses, the RAP replaced SMA without rejuvenator offered better fatigue resistance than those with rejuvenator and conventional SMA mix. At higher temperatures, the RAP replaced SMA mix with rejuvenator offered similar fatigue lifecycle as conventional mix. However, at high stresses, conventional SMA mix offered better fatigue lifecycle. Increase in failure stresses resulted in decrease of number of fatigue cycles and increased in initial tensile strain of the mix. Thus, with the use of RAP substantial decrease in cost can be achieved without compromising the fatigue characteristic of the SMA mix.

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Investigation of Anisotropic Behavior of Montney Shale Under Indirect Tensile Strength Test

10.2118/138104-ms ◽

2010 ◽

Cited By ~ 6

Author(s):

Ali Keneti ◽

R.C.K. Wong

Keyword(s):

Tensile Strength ◽

Strength Test ◽

Indirect Tensile Strength ◽

Anisotropic Behavior ◽

Tensile Strength Test ◽

Indirect Tensile

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Stress analysis of asphalt mixture in the indirect tensile strength test

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/867/1/012003 ◽

2020 ◽

Vol 867 ◽

pp. 012003

Author(s):

J Bokomlaško ◽

J Mandula

Keyword(s):

Tensile Strength ◽

Stress Analysis ◽

Asphalt Mixture ◽

Strength Test ◽

Indirect Tensile Strength ◽

Tensile Strength Test ◽

Indirect Tensile

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Research of Mechanical Properties of Asphalt Pavement Materials with WMA and RAP

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.204-208.3934 ◽

2012 ◽

Vol 204-208 ◽

pp. 3934-3937 ◽

Cited By ~ 1

Author(s):

Bao Yang Yu ◽

Yu Wang ◽

Min Jiang Zhang

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Dynamic Modulus ◽

Asphalt Pavement ◽

Asphalt Mixture ◽

Asphalt Mixtures ◽

Indirect Tensile Strength ◽

Porous Asphalt ◽

Compaction Energy ◽

Indirect Tensile

The objectives of this paper are to characterize the mechanical properties of porous asphalt pavement mixtures containing RAP and a WMA additive using Super pave gyratory compactor and dynamic modulus testing. Four types of asphalt mixtures were evaluated in this study. This study evaluated compaction energy index, permeability, indirect tensile strength, and dynamic modulus for all types of porous asphalt mixtures. All of the asphalt mixtures meet the typical minimum coefficient of permeability in this study. In addition, only a slight decrease in was found when WMA additive was added to the porous asphalt mixture containing RAP. For indirect tensile strength testing, WMA containing RAP was found to have the highest tensile strength among all of the mixtures tested.

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