scholarly journals Testing of Coarse SMA Using Tapparan River Stone, Tana Toraja Regency

2021 ◽  
Vol 3 (3) ◽  
pp. 1-9
Author(s):  
Emil Loli ◽  
Alpius ◽  
Charles Kamba
Keyword(s):  
Immersion Test ◽  
Coating Material ◽  
Stone Matrix Asphalt ◽  
Marshall Test ◽  
Asphalt Content ◽  
Marshall Stability ◽  
Stone Matrix ◽  
Pavement Material

This experiment is to intended of Tapparan river stone in a Stone Matrix Asphalt (SMA). The method in this experiment is to test character of every agregate and filler. then make a composition of Stone Matrix Asphalt (SMA) mixture Marshall testing to get the characteristics and the Marshall Immersion test for  the remaining Marshall Stability value. The results of research, shows the character of the pavement material in the form of Tapparan River rock, Tana Toraja Regency, meet some specific for coating material. with conventional Marshall Test, the characteristics with asphalt content of 6.00%, 6.25%, 6.50%, 6.75%, and 7.00% meet the General Specifications. From the Marshall Immersion test, it was obtained that the remaining Marshall Stability was 95.10% with asphalt 7.00% fulfilling the requirements, namely> 90% accordance with the General Specifications.

scholarly journals Utilization of Sewan River Aggregate in Sarmi Regency as a Mixture for AC-WC

2021 ◽  
Vol 3 (3) ◽  
pp. 421-430
Author(s):  
Marine Mariel Pongturunan ◽  
Mary Selintung ◽  
Alpius
Keyword(s):  
Coarse Aggregate ◽  
Rapid Development ◽  
Asphalt Mixture ◽  
Fine Sand ◽  
Immersion Test ◽  
Fine Aggregate ◽  
Marshall Test ◽  
Asphalt Content ◽  
Sand Filler ◽  
Marshall Stability

The rapid development of road infrastructure increases the need for materials to be used, including the use of aggregates. This study aims to examine the use of aggregate from the Sewan River in Sarmi Regency as an asphalt mixture. In this study by conducting several tests such as checking the characteristics of course (stone), fine (sand), filler and asphalt characteristics. After that, a mixture of asphalt composition (AC-WC) was made and then the Marshall test was carried out to obtain the properties of the mixture. The results of testing the composition of the AC-WC mixture obtained the composition of the mixture for the optimum asphalt content of 7.50%, coarse aggregate 36.75%, fine aggregate 50.00%, and filler 5.75%. This shows that the aggregate characteristics of the Sewan river for the AC-WC mixture with the conventional Marshall method that meet the 2018 General Specifications of Highways are stability (Asphalt content 4.00%-11.00%), Flow (Asphalt content 4.00%-11 0.00%), VIM (asphalt content 4.00%-7.50%), VMA (asphalt content 5.75%-11.00%) and VFB (asphalt content 5.75%-11.00%). As for the Marshall Immersion test, the remaining Marshall stability value is 95.15%.  

scholarly journals Karakteristik Campuran SMA Kasar Menggunakan Batu Sungai Sa’dan Kecamatan Sesean Toraja Utara

2021 ◽  
Vol 2 (4) ◽  
pp. 282-288
Author(s):  
Arung Dating Sandabunga ◽  
Nur Ali ◽  
Rais Rachman
Keyword(s):  
Stone Matrix Asphalt ◽  
Marshall Test ◽  
Stone Matrix

Tujuan peneIitian ini untuk menguji karakteristik Campuran Stone Matrix Asphalt (SMA) Kasar dengan memanfaatkan Sungai Sa’dan Kelurahan Pangli Kecamatan Sesean Kabupaten Toraja Utara dari hasil penelitian laboratorium.Metode yang digunakan untuk penelitian ini ialah membuat beberapa uji karakteristik yang berwujud material aggregat kasar, halus, filer serta aspal yang kemudiam membuat rancangan komposisi lalu benda uji dibuat dalam bentuk campuran beraspal panas Stone Matrix Asphalt (SMA) Kasar dan kemudian melakukan Marshall test untuk mendapatkan Stabilitas Marshal sisa (SMS) menggunakan K.A.O. Adapun penelitian ini dilaksanakan di laboratorium Jalan dan Aspal Fakultas Teknik Sipil Universitas Kristen Indonesia Paulus Makassar, yang memberikan hasil Karakteristik material perkerasan berupa Batu Sungai Sa’dan Kelurahan Pangli Kec.Sesean Kab. Toraja Utara telah memenuhi Spesifikasi standar Bina Marga 2018 yang dapat digunakan dalam campuran beraspal panas. Melalui uji Marshall didapatkan karakteristik Stone Matrix Asphalt (SMA) Kasar dengan kadar aspal 6,00, hingga 7,00% dengan kenaikan 0,25%. 7,00% adalah K.A.O yang digunakan pada Marshall Immersion campuran SMA dan diperoleh Stabilitas Marshal Sisa (SMS) sebesar 97,53% dimana nilai ini sesuai dengan Spesifikasi Umum Bina Marga 2018 yaitu minimal 90%.

scholarly journals Effect of Fibers on Mixture Design of Stone Matrix Asphalt

2017 ◽  
Author(s):  
Yanping Sheng ◽  
Haibin Li ◽  
Ping Guo ◽  
Guijuan Zhao ◽  
Huaxin Chen ◽  
...  
Keyword(s):  
Specific Gravity ◽  
Mixture Design ◽  
Fiber Content ◽  
Polyester Fiber ◽  
Mineral Fiber ◽  
Bituminous Mixtures ◽  
Stone Matrix Asphalt ◽  
Water Sensitivity ◽  
Marshall Stability ◽  
Stone Matrix

Lignin fibers typically influence the mixture performance of stone matrix asphalt (SMA), such as strength, stability, durability, noise level, rutting resistance, fatigue life, and water sensitivity. However, limited studies were conducted to analyze the influence of fibers on the percent voids in mineral aggregate in bituminous mixture (VMA) during the mixture design. This study analyzed the effect of different fibers and fiber contents on the VMA in SMA mixture design. A surface-dry condition method test and Marshall Stability test were applied on the SMA mixture with four different fibers (i.e., flocculent lignin fiber, mineral fiber, polyester fiber, blended fiber). The test results indicated that the bulk specific gravity of SMA mixtures and asphalt saturation decreased with the increasing fiber content, whilst the percent air voids in bituminous mixtures (VV), Marshall Stability and VMA increased. Mineral fiber had the most obvious impact on the bulk specific gravity of bituminous mixtures, while flocculent lignin fiber had a minimal impact. The mixture with mineral fiber and polyester fiber had significant effects on the volumetric properties, and, consequently, exhibited better VMA over the conventional SMA mixture with lignin fiber. Modified fiber content range was also provided, which will widen the utilization of mineral fiber and polyester fiber in the applications of SMA mixtures. The mixture evaluation suggested no statistically significant difference between lignin fiber and polyester fiber on the stability. The mineral fiber required a much larger fiber content to improve the mixture performance than other fibers. Overall, the results can be a reference to guide SMA mixture design.

scholarly journals Properties of Stone Matrix Asphalt Modified with Polyvinyl Chloride and Nano Silica

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2358
Author(s):  
Hoang Phong Nguyen ◽  
Pei Feng Cheng ◽  
Tat Thang Nguyen
Keyword(s):  
Polyvinyl Chloride ◽  
Creep Recovery ◽  
Nano Silica ◽  
Damage Resistance ◽  
Rutting Resistance ◽  
Stone Matrix Asphalt ◽  
Aging Conditions ◽  
Multiple Stress Creep Recovery ◽  
Marshall Stability ◽  
Stone Matrix

In this study, the effects of polyvinyl chloride (PVC) and nano silica (NS) as modifiers on the properties of stone matrix asphalt (SMA) were studied. The experiment was performed with five modes: 1% NS was mixed into SMA; 5% PVC was mixed into SMA; and the ratio of NS was changed (1, 2, and 3%) with 5% PVC being mixed into SMA. The properties of modified and unmodified SMA materials were determined and compared by performing the penetration test, softening points test, viscosity measurements, dynamic shear rheometry, and multiple stress creep recovery under aging conditions. Moreover, the properties of the modified SMA were also determined in terms of Marshall stability, water stability, and rutting resistance. The obtained results indicate that the physical properties of SMA materials could be significantly improved by using a combination of PVC and NS as a modifier. Moreover, the SMA mixtures modified with PVC and NS exhibited high Marshall stability, good moisture damage resistance, and rutting resistance. Modified SMA mixtures with 5% PVC and 1% NS exhibited the best quality. This research has opened up a new avenue for the development of effective additives for SMA materials.

Evaluation of Two Compaction Levels for Designing Stone Matrix Asphalt

2005 ◽  
Vol 1929 (1) ◽  
pp. 149-156 ◽  
Author(s):  
Hongbin Xie ◽  
Donald E. Watson ◽  
E. Ray Brown
Keyword(s):  
Asphalt Pavement ◽  
Design Guidelines ◽  
Mineral Aggregate ◽  
Rutting Resistance ◽  
Stone Matrix Asphalt ◽  
Aggregate Breakdown ◽  
Successful Design ◽  
Asphalt Content ◽  
Stone Matrix

Current stone matrix asphalt (SMA) design guidelines list two compaction options to design SMA, 50 blows Marshall or 100 gyrations with the Superpave® gyratory compactor (SGC). However, some states have found that 100 gyrations with the SGC is excessive for their materials. In this study a lower compaction level of 65 gyrations was used to compare with the standard 100 gyrations to design SMA mixtures. Results showed that mixtures designed by 65 gyrations had an average of 0.7% higher optimum asphalt content and 1.5% higher voids in mineral aggregate (VMA) than those designed by 100 gyrations. All mixtures designed by 65 gyrations met the minimum asphalt content and VMA requirements for SMA, whereas only eight of 15 mixtures designed by 100 gyrations met those two requirements. Compaction at 100 gyrations resulted in an additional 0.62% average aggregate breakdown at the critical sieve as compared with 65 gyrations. SMA mixtures designed by 65 gyrations and 100 gyrations had an average asphalt pavement analyzer rut depth of 3.9 mm and 3.1 mm, respectively. Thirteen of 15 mixtures designed by 65 gyrations performed well if 5.0 mm was set as the maximum allowed rut depth. On the basis of this study, 65 gyrations can be used to design a more durable SMA mixture, while still maintaining the good rutting resistance that SMA mixtures are noted for. The successful design by 65 gyrations for all five aggregates in this study indicates that a lower design compaction level may allow the use of more aggregate sources for SMA mixtures.

scholarly journals Assessment of Rutting Resistance and Healing for Stone Matrix Asphalt Concrete (SMAC)

2019 ◽  
Vol 11 (2) ◽  
pp. 60-69
Author(s):  
Saad Issa Sarsam ◽  
Shahed Mahmood Khalil
Keyword(s):  
Fly Ash ◽  
Asphalt Concrete ◽  
Resilient Modulus ◽  
Permanent Deformation ◽  
Healing Process ◽  
Rutting Resistance ◽  
Stone Matrix Asphalt ◽  
Compressive Stresses ◽  
Asphalt Content ◽  
Stone Matrix

Stone Matrix Asphalt Concrete (SMAC) is known as tough, stable, rut-resistant mixture. In this investigation, SMAC was prepared in the laboratory using gap graded aggregates, asphalt cement, mineral filler and coal fly ash as stabilizing agent. Specimens were prepared using static compaction to the target density based on asphalt content for each case. The prepared Specimens were subjected to the 1200 repeated compressive stresses at 25 ºC under various stress levels using the pneumatic repeated load system PRLS. Specimens were subjected to microcrack healing process by external heating for 120 minutes at 60 °C, then it practices another cycle of repeated compressive stresses. The resilient modulus, permanent deformation, and rutting resistance under three levels of stress have been assessed. It was concluded that the resilient modulus Mr increases by (66, 50 and 31) %, (36, 50 and 31) % and (62, 37 and 69) %, while the permanent deformation decreases by (25, 11.4 and 25) %, (19, 31.6 and 14.5) % and (14, 9 and 8.3) % after implementation of fly ash at (OAC-0.5, OAC and OAC+0.5) % binder content under (0.068, 0.138 and 0.206) MPa of repeated compressive stress respectively. The resilient modulus increased by (17.6, 15.3, 10.5) % , (42.8, 51, 37.5) % and (18.7, 25, 23.6) %  and the permanent deformation decline by (3.52, 31.66, 6.25) % under repeated compressive stresses of (0.068, 0.138, 0.206) MPa at (25 °C) after healing for mix with (4.6, 5.1, 5.6) % asphalt content  respectively when compared with mixtures before healing.

scholarly journals Influence of fly ash on the volumetric and physical properties of Stone Matrix Asphalt Concrete

2020 ◽  
Vol 26 (5) ◽  
pp. 128-142
Author(s):  
Shahad Mahmood Khalil ◽  
Saad I. Sarsam
Keyword(s):  
Fly Ash ◽  
Asphalt Concrete ◽  
Moisture Damage ◽  
Lower Sensitivity ◽  
Asphalt Cement ◽  
Stone Matrix Asphalt ◽  
Indirect Tensile ◽  
Asphalt Content ◽  
Temperature Susceptibility ◽  
Stone Matrix

Stone Matrix Asphalt (SMA) is a gap-graded asphalt concrete hot blend combining high-quality coarse aggregate with a rich asphalt cement content. This blend generates a stable paving combination with a powerful stone-on-stone skeleton that offers excellent durability and routing strength. The objectives of this work are: Studying the durability performance of stone matrix asphalt (SMA) mixture in terms of moisture damage and temperature susceptibility and Discovering the effect of stabilized additive (Fly Ash ) on the performance of stone matrix asphalt (SMA) mixture. In this investigation, the durability of stone matrix asphalt concrete was assessed in terms of temperature susceptibility, resistance to moisture damage, and sensitivity to the variation in asphalt content. Specimens of 63.5 mm height and 102 mm diameter were compacted using the Marshall method at 150 °C. The optimum asphalt content was determined. Additional specimens were prepared with (0.5) percent below and above the OAC requirement. Specimens were subjected to indirect tensile strength (ITS) determination at (25 and 40) °C, and double punch shear strength determination. Another group of specimens was subjected to Marshall properties determination and to moisture damage. It was observed that stone matrix asphalt exhibit lower sensitivity to the change in asphalt content from the resistance to moisture damage and temperature susceptibility points of view. However, the tensile and shear properties exhibit significant sensitivity to the variation in asphalt content.

scholarly journals Effect of Fibers on Mixture Design of Stone Matrix Asphalt

2017 ◽  
Vol 7 (3) ◽  
pp. 297 ◽  
Author(s):  
Yanping Sheng ◽  
Haibin Li ◽  
Ping Guo ◽  
Guijuan Zhao ◽  
Huaxin Chen ◽  
...  
Keyword(s):  
Mixture Design ◽  
Stone Matrix Asphalt ◽  
Stone Matrix

Research on Designing Optimum Asphalt Content of Asphalt Mixture by Calculation and Experimental Method

2011 ◽  
Vol 97-98 ◽  
pp. 23-27
Author(s):  
Wen Fang Liu ◽  
Hong Mei Li ◽  
Bei Ping Tian
Keyword(s):  
Experimental Method ◽  
Calculation Method ◽  
Asphalt Mixture ◽  
Test Efficiency ◽  
Marshall Test ◽  
Rapid Calculation ◽  
Asphalt Content ◽  
Hot Mixed Asphalt

In this paper, the initial asphalt content is estimated by the hot-mixed asphalt mixture rapid calculation method in condition that we have no information about the similar project, and five asphalt content are selected with regarding the estimated asphalt content as the middle value, then carries on the Marshall test. The optimuml asphalt content is very accurate by the calculation and experimental method, the method greatly improved the test efficiency.

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