scholarly journals DURABILITAS CAMPURAN LASTON LAPIS AUS (AC-WC) DI SUBSTITUSI LIMBAH LOW DENSITY POLYETHYLENE (lDPE) DENGAN CARA KERING TERHADAP RENDAMAN KOTORAN SAPI

2018 ◽  
Vol 1 (3) ◽  
pp. 689-700
Author(s):  
Rajib Muammar ◽  
Sofyan M. Saleh ◽  
Yuhanis Yunus

Abstract: The high road surface temperatures, precipitation and traffic loads are several causes that damage of asphalt course. In Aceh, cow dung is often found on the roads. Cow dung is rich in nutrients and has high water content. It is alledgly the factors causing damage to the roads pavement. One way to overcome the damage of pavement is by modifying the asphalt by using additional material which is a polymer. The polymer used in plastic waste made of Low Density Polyethylene (LDPE) as road asphalt substitute. The main objective of this study was to determine the Marshall characteristics on Asphalt Concrete Wearing Course (AC-WC) mixtures with additional slices of LDPE plastic waste 2%, 4% and 6% in the asphalt pen. 60/70 to the asphalt content by dry process and to find out the effect of the immersion of the LDPE modified asphalt mixtures in cow dung and urine with the time variations of 30 minutes, 24 hours, and 48 hours on its stability and durability. The result showed that the best stability value for the asphalt mixture without substitute material immersion in cow dung was 1181,93 kg, the best stability for value for the asphalt mixed with LDPE at the percentage 6% was 1636,57 kg on 30 minutes immersed. The parameter values for the asphalt mixture with or without the substitution of LDPE in stability, flow, MQ, density, VIM, VMA, and VFA still met the specification requirements of Bina Marga 2014. The best durability value for the asphalt mixture without substitute material immersed was 90,8%, the best durability value for the asphalt mixed with LDPE at the percentage of 6% is 95.88%. Those results met the specifications set by the Bina Marga 2014 that is ≥ 90%. The addition of LDPE in the asphalt mixture by dry process with the immersion in cow dung can affect the stability value.Abstrak: Tingginya temperatur permukaan jalan, curah hujan dan beban lalu lintas merupakan beberapa penyebab kerusakan lapisan aspal. Pada jalan didaerah Aceh banyak kita jumpai kotoran sapi berserakan di jalan. Kotoran sapi mengandung sangat banyak unsur hara dan kadar air yang cukup tinggi dan dapat diduga merupakan faktor penyebab kerusakan aspal. Salah satu cara dalam mengatasi kerusakan jalan adalah dengan memodifikasi aspal menggunakan bahan tambah yaitu polimer. Polimer yang digunakan berupa limbah plastik Polyethylene (PE) dengan jenis Low Density Polyethylene (LDPE) sebagai pensubstitusi aspal. Tujuan utama dari penelitian ini untuk mengetahui karakteristik marshall campuran Laston (AC-WC) dengan tambahan irisan limbah plastik LDPE 2%, 4%, dan 6% pada aspal pen 60/70 terhadap berat aspal dengan cara kering, serta mengetahui pengaruh rendaman kotoran dan urine sapi dengan variasi waktu 30 menit, 24 jam, dan 48 jam terhadap stabilitas dan durabilitas aspal modifikasi LDPE. Dari hasil penelitian didapatkan nilai stabilitas terbaik tanpa substitusi pada rendaman kotoran sapi yaitu 1181,93 kg, stabilitas terbaik untuk LDPE yaitu persentase 6%  1636,57 kg pada rendaman 30 menit. Nilai parameter untuk tanpa dan dengan substitusi LDPE yang dihasilkan berupa stabilitas, flow, MQ, density, VIM, VMA, dan VFA masih memenuhi persyaratan spesifikasi Bina Marga tahun 2014. Nilai durabilitas tanpa substitusi sebesar 90,8%, nilai durabilitas dengan persentase 6% LDPE merupakan yang terbaik yaitu 95,88%. Hasil tersebut memenuhi spesifikasi yang ditentukan Bina Marga tahun 2014 yaitu ≥ 90%. Penambahan LDPE dalam campuran aspal dengan cara kering  pada rendaman kotoran sapi berpengaruh pada nilai stabilitas.

Author(s):  
Ni Luh Putu Shinta Eka Setyarini ◽  
Anissa Noor Tajudin ◽  
Joseph Pratama

Jalan merupakan infrastruktur penting untuk pergerakan manusia, barang  dan meningkatkan perekonomian nasional, namun sebagian besar jalan berperkerasan lentur mengalami kerusakan akibat kualitas dari materialnya yaitu aspal dan agregat. Aspal adalah bahan yang tidak terbarukan sehingga akan habis akibat dari penggunaan secara terus menerus. Sehingga diperlukan bahan alternatif sebagai pengganti aspal untuk melapisi agregat yang berfungsi untuk mengurangi erosi. Salah satu bahan alternatif yang bisa digunakan untuk menutupi permukaan agregat adalah limbah plastik Low Density Polyethylene (LDPE). Limbah plastik LDPE  yang digunakan sebanyak 1% - 6% dari berat keseluruhan agregat di dalam campuran. Limbah plastik LDPE dibuat dalam bentuk potongan kecil plastik dengan ukuran  benda uji dibuat  berdiameter 4 " dan tinggi 2,7" dalam bentuk silinder. Pengujian Marshall dilakukan pada semua benda uji. Penambahan limbah plastik LDPE dapat meningkatkan stabilitas hingga 66,70% dan menurunkan kadar aspal hingga 2,5% dibandingkan campuran aspal beton tanpa campuran limbah plastik. Roads are important infrastructure for the movement of people, goods and improving the national economy, but most flexible pavement roads suffer damage due to the quality of their material, namely asphalt and aggregate. Asphalt is a non-renewable material that will run out as a result of continuous use. So we need an alternative material as a substitute for asphalt to coat the aggregate which serves to reduce erosion. One alternative material that can be used to cover aggregate surfaces is Low Density Polyethylene (LDPE) plastic waste. The LDPE plastic waste used is 1% - 6% of the total weight of the aggregate in the mixture. LDPE plastic waste is made in the form of small pieces of plastic with the size of the test specimen made in diameter 4 "and height 2.7" in cylindrical form. Marshall testing is carried out on all test specimens. The addition of LDPE plastic waste can increase stability up to 66.70% and reduce asphalt content up to 2.5% compared to concrete asphalt mixture without plastic waste mixture.


2020 ◽  
Vol 6 (10) ◽  
pp. 1932-1943
Author(s):  
Alvin Joseph Santos Dolores ◽  
Jonathan David Lasco ◽  
Timothy M. Bertiz ◽  
Kimjay M. Lamar

Infusing plastic waste to concrete and masonry structures is an increasingly common industry practice that has the potential to create an environment-friendly material that can improve some of the material’s properties, craft a novel means to repurpose plastic waste, and reduce the need for mining aggregates in the environment. This concept has been studied extensively in different forms of concrete, as shown by several studies; however, there is a dearth of studies focusing on the incorporation plastic waste in concrete hollow blocks (CHB). In this study, we aim to fill that gap by investigating on the effects of incorporating low-density polyethylene (LDPE), a commonly used plastic material, to CHB on its compressive strength and bulk density. Samples of varying percentages of LDPE replacement by volume (0, 10, 20, 30 and 40%) were fabricated and tested. Results showed a general trend of decreasing compressive strength and bulk density upon increasing the amount of LDPE pellets in CHB, which was also observed in previous studies. However, the compressive strength of CHB increased at 10% LDPE replacement, a result similar to a previous study. It was inferred that the strength of the plastic material could have a direct contribution to the compressive strength of CHB at low percentage of aggregate replacement. Statistical analysis showed that the mix with 10% LDPE pellets as replacement to sand was the best among the samples tested. It was shown that CHB infused with LDPE pellets has a higher compressive strength than what is normally used in the Philippines. It was concluded that based on compressive strength and bulk density, LDPE pellets is a viable material to use as partial replacement to sand in non-load bearing CHB.


2018 ◽  
Vol 1 (3) ◽  
pp. 679-688
Author(s):  
Ondriani Ondriani ◽  
Sofyan M. Saleh ◽  
Muhammad Isya

Abstract: The cause of damage and strength reductionon highway flexible pavement isthe low strength and durability on the wear layer. To cope withthis problem, it is necessary to add some particular additivethat can increase the asphalt concrete performance. One of the additional material that can be used are plastic. Stone ash, cement and fly ash has been commonly used as a filler in asphalt mixture. But these kind of filler was hard to get and the price were relatively expensive. The coconut fiber ash wich has a specific grafity greater than asphalt is expected to be one alternative. This research aims to determine the influence of plastic wastecombination substitution into the asphalt pen. 60/70 and the use of coconut fiber ash as filler on AC-WC mixture performance. The plastic used in this research is polyethylene terephthalate, polypropylene and polystyrene. The early stages of this research is to find the optimum asphalt content (OAC). After OAC obtained, then the specimens were mixed without and with the combination substitution of plastic waste as much as 2.7%; 4.7%; 6.7% against the weight of  asphalt on OAC + 0.5% with and without the coconut fiber ash as a filler. The study results showed the use of plastic waste combination and the coconut fiber ash can not improve the durability value. The highest value of durability obtained at 4.7% combination substitution of plastic waste, it was 77.53%, While the lowest was in substitution of 6.7% plastic waste combination with 38.27% coconut fiber  ash as a filler. The duration value of AC-WC mixture with plastic waste combination substitution and the use of coconut fiber ash filler did not meet the requirement that is 90%.Abstrak: Penyebab kerusakan dan penurunan kekuatan perkerasan lentur jalan raya adalah rendahnya kekuatan dan keawetan di dalam lapisan aus. Untuk menanggulangi hal ini dibutuhkan suatu bahan tambah yang dapat meningkatkan lapis aspal beton. Salah satu bahan tambah yang dapat di gunakan adalah plastik. Abu batu, semen dan fly ash sudah biasa digunakan sebagai filler dalam campuran aspal. Tetapi, jenis filler tersebut susah didapatkan dan harganya relatif mahal. Abu serabut kelapa yang memiliki berat jenis lebih besar dari aspal, diharapkan dapat menjadi alternatifnya. Penelitian ini bertujuan untuk mengetahui nilai durabilitas campuran AC-WC menggunakan kombinasi limbah plastik dan abu serabut kelapa. Plastik yang digunakan pada penelitian ini adalah Polyethylene Terephthalate, Polypropylenedan Polystyrene. Tahap awal penelitian ini adalah mencari kadar aspal optimum (KAO). Setelah KAO didapat kemudian dilakukan pembuatan benda uji tanpa dan dengan substitusi kombinasi limbah plastik sebesar 2,7%; 4,7%; 6;7% terhadap berat aspal pada KAO + 0,5% tanpa dan dengan abu serabut kelapa sebagai filler. Hasil penelitian menunjukkan penggunaan kombinasi limbah plastik tidak dapat meningkatkan nilai durabilitas. Nilai durabilitas tertinggi didapat pada substitusi kombinasi limbah plastik 4,7% yaitu 77,53% sedangkan yang terendah terdapat pada subtitusi kombinasi limbah plastik 6,7% dengan filler abu serabut kelapa yaitu 38,27%. Nilai Durabilitas campuran AC-WC dengan substitusi kombinasi limbah plastik   dan penggunaan abu serabut kelapa sebagai filler tidak memenuhi syarat yaitu 90%.


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