Laboratory Assessment of Dense Graded Asphalt Concrete Incorporating Coal Furnace Ash in South of Vietnam

2021 ◽  
Vol 879 ◽  
pp. 117-125
Author(s):  
Dang Tung Dang ◽  
Manh Tuan Nguyen ◽  
Ngoc Tram Hoang ◽  
Anh Thang Le
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Coal Ash ◽  
Aggregate Size ◽  
Road Construction ◽  
Maximum Aggregate Size ◽  
Fine Aggregate ◽  
Laboratory Assessment ◽  
Laboratory Performance ◽  
Major Interest

Currently, application of industrial waste or by-product in road construction industrials is a major interest by researchers, government officers and engineers. Coal ashes by-product from industrial parks negatively impact environment, costly in treatment, and require large ground for disposing areas. Therefore, this paper proposes on using the coal ash from furnace products of an industrial park in South of Vietnam to be incorporated into dense graded asphalt concrete using Nominal Maximum Aggregate Size 12.5mm. Laboratory performance tests including Marshall stability, indirect tensile strength, Cantabro loss, and dynamic fatigue test were conducted. The effects of coal ash contents in replacement of fine aggregate which is passing 4.75mm sieve from asphalt mixture into laboratory performance of mixture is also discussed in detail.

Design of Rubberized Asphalt Concrete by Means of Coarse Aggregate Void Filling Method

2012 ◽  
Vol 463-464 ◽  
pp. 215-220
Author(s):  
Kuang Huai Wu ◽  
Guo Liang Yang ◽  
Ai Yu Zeng
Keyword(s):  
Asphalt Concrete ◽  
Coarse Aggregate ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Temperature Stability ◽  
Maximum Aggregate Size ◽  
High Temperature Stability ◽  
Asphalt Rubber ◽  
Filling Method ◽  
Rubberized Asphalt Concrete

In order to find a convenient approach to design the mix of rubberized asphalt concrete (RAC) and make full use of the properties of RAC, a kind of RAC-13 (13 is the nominal maximum aggregate size of the mixture) was designed by means of coarse aggregate void filling method (CAVF). A series of conventional tests of asphalt mixture with five asphalt-rubber aggregate ratio(ARAR) were carried out to check the target mix design and evaluate the performance of RAC. Performance evaluation tests such as Marshall and submerged Marshall stability test, moisture damage test and wheel tracking test were included. Test results show that the high temperature stability, moisture susceptibility and road performance of RAC-13 designed with CAVF method are all favorable. The recommended optimum asphalt-rubber aggregate ratio(OARAR) is 7.1% under the condition of skeleton structure. CAVF is a good means for designing RAC to ensure its stone-on-stone contact structure.

Fine Aggregate Interference on Thermal Stability of Asphalt Mixture

2013 ◽  
Vol 470 ◽  
pp. 823-826
Author(s):  
Chen Chen Zhang ◽  
Guang Yang ◽  
Li Jia Zhou ◽  
Jing Hang Wu
Keyword(s):  
High Temperature ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Maximum Aggregate Size ◽  
Fine Aggregate ◽  
Flow Number ◽  
Temperature Performance ◽  
Fine Aggregates ◽  
Thermal Stability Of ◽  
Skeleton Structure

Fine aggregates are sensitive parts to skeleton structure of mixture and decrease rutting resistance of asphalt mixtures. In order to evaluate the high temperature performance of mixtures with different fine aggregate (2.36mm and 1.18mm) content, 16 gradations were investigated. Flow number test and rutting test was conducted to evaluate anti-rutting performance of mixtures. Then, interference coefficient was put forward to analyze interference rule of high temperature performance. The results show that high temperature performance was improved with the increasing size of nominal maximum aggregate size; the interference effects of fine aggregate ( 2.36mm and 1.18 mm ) is inversely proportional to nominal maximum aggregate size.

Effect of Segregation on Fatigue Performance of Asphalt Paving Mixtures

1996 ◽  
Vol 1543 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Taisir S. Khedaywi ◽  
Thomas D. White
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Fatigue Performance ◽  
Fatigue Properties ◽  
Maximum Aggregate Size ◽  
Initial Stiffness ◽  
Natural Sand ◽  
Concrete Mixtures ◽  
Asphalt Paving

The main objective of this research was to investigate the effect of segregation on fatigue performance of asphalt paving mixtures. Segregation in asphalt concrete pavements occurs when coarse material is concentrated in some areas of the pavement and fine materials in others. Segregation has been one problem that has resulted in poor performance in many pavements. Materials used in the study included gravel, natural sand, and an AC-20 asphalt cement. Aggregates were selected to meet the Indiana Department of Transportation specification for a No. 8 binder with a maximum aggregate size of 1 in. (25 mm). To simulate various levels of coarse and fine segregation, four artificially segregated mixtures were prepared in addition to the control asphalt mixture. Slabs were compacted for the five mixtures using the Purdue linear compactor. These slabs were cut into beams that were used to test for the fatigue properties of the five segregated asphalt concrete mixtures. Limits of fatigue were examined when flexural stiffness was one-third and one-half of the initial stiffness at 200 load applications. Results of the investigation indicated that the fatigue life of segregated asphalt concrete mixtures was significantly affected.

scholarly journals PENELITIAN CAMPURAN ASPAL BETON DENGAN MENGGUNAKAN FILLER AMPAS TAHU

2020 ◽  
Vol 3 (1) ◽  
pp. 130
Author(s):  
Dony Triyatno ◽  
Yosef Cahyo ◽  
Ahmad Ridwan
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Road Construction ◽  
Concrete Mixture ◽  
Optimum Level ◽  
Fine Aggregate ◽  
River Sand ◽  
Average Value ◽  
Asphalt Content ◽  
The Stability

Road construction in Indonesia mostly uses concrete asphalt. This study aims to determine the optimum level of asphalt produced in a concrete asphalt mixture with tofu pulp filler, in terms of the stability of Marshall, flow, VIM, VMA, VFB, and MQ. Asphalt concrete mixture in this study uses AC 60/70 asphalt. This study uses 5 samples, each using a different asphalt content, namely: 5%, 5.5%, 6%, 6.5%, 7%, with one sample consisting of 3 variants.  The material used is a coarse coral aggregate held by sieve No. 8 (2,36mm). Fine aggregate with Brantas river sand passes filter no.8 (2.36mm), and fillers use tahas pulp bypassing filter no. 200 (0.075mm). The results of this study on Marshall characteristics obtained asphalt content of 5% and 6% with the average value of stability 712 and 881, Flow 3.3 mm and 2.4 mm, VIM 4.65% and 4.24% VMA 19.29% and 17.87%, VFB values of 75.41% and 76.15%, and MQ 271 kg / mm and 433kg / mm.Pembuatan konstruksi jalan di Indonesia banyak menggunakan aspal beton. Penelitian ini bertujuan untuk mengetahui kadar aspal optimum yang dihasilkan pada campuran aspal beton dengan filler ampas tahu, ditinjau dari stabilitas Marshall, flow, VIM, VMA, VFB, dan MQ. Campuran aspal beton dalam penelitian ini menggunakan aspal minyak AC 60/70. Penelitian ini menggunakan 5 sampel, masing-masing menggunakan kadar aspal yang berbeda yaitu: 5%, 5,5%, 6%, 6,5%, 7%, dengan satu sampel terdiri dari 3 varian. Tahapan penelitian yaitu agregat kasar batu koral tertahan saringan no. 8 (2,36mm), agregat halus dengan pasir sungai brantas lolos saringan no.8 (2,36mm), dan filler menggunakan ampas tahus dengan lolos saringan no. 200 (0,075mm). Hasil dari penelitian ini pada karakteristik Marshall didapat kadar aspal otimum 5% dan 6% dengan nilai rerata stabilitas 712 dan 881, Flow 3,3 mmdan 2,4 mm, VIM 4,65% dan 4,24% VMA 19,29% dan 17,87%, nilai VFB 75,41% dan 76,15%, dan MQ 271 kg/mm dan 433kg/mm.

scholarly journals Asphalt Mixture for the First Asphalt Concrete Directly Fastened Track in Korea

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Seong-Hyeok Lee ◽  
Dae-Wook Park ◽  
Hai Viet Vo ◽  
Samer Dessouky
Keyword(s):  
Asphalt Concrete ◽  
Design Method ◽  
Asphalt Mixture ◽  
Digital Camera ◽  
Aggregate Size ◽  
Fatigue Tests ◽  
Asphalt Mixtures ◽  
Maximum Aggregate Size ◽  
Aggregate Gradation ◽  
Modified Asphalt

The research has been initiated to develop the asphalt mixtures which are suitable for the surface of asphalt concrete directly fastened track (ADFT) system and evaluate the performance of the asphalt mixture. Three aggregate gradations which are upper (finer), medium, and below (coarser). The nominal maximum aggregate size of asphalt mixture was 10 mm. Asphalt mixture design was conducted at 3 percent air voids using Marshall mix design method. To make impermeable asphalt mixture surface, the laboratory permeability test was conducted for asphalt mixtures of three different aggregate gradations using asphalt mixture permeability tester. Moisture susceptibility test was conducted based on AASHTO T 283. The stripping percentage of asphalt mixtures was measured using a digital camera and analyzed based on image analysis techniques. Based on the limited research results, the finer aggregate gradation is the most suitable for asphalt mixture for ADFT system with the high TSR value and the low stripping percentage and permeable coefficient. Flow number and beam fatigue tests for finer aggregate asphalt mixture were conducted to characterize the performance of asphalt mixtures containing two modified asphalt binders: STE-10 which is styrene-butadiene-styrene (SBS) polymer and ARMA which is Crum rubber modified asphalt. The performance tests indicate that the STE-10 shows the higher rutting life and fatigue life.

scholarly journals PENGARUH PENGGUNAAN AGREGAT HALUS JAMUR UJUNG PADA CAMPURAN LASTON AC-WC

2019 ◽  
Vol 2 (1) ◽  
pp. 1-10
Author(s):  
Ardian Fahmi ◽  
Sofyan M. Saleh ◽  
Muhammad Isya
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Mixture ◽  
Road Construction ◽  
Fine Aggregate ◽  
Surface Layers ◽  
Asphalt Content ◽  
Materials Used ◽  
Aggregate Composition ◽  
Test Objects

The good quality of road surface layers are strongly influenced by the materials used such as the aggregate composition, asphalt, and filler. Fine Aggregate from Jamur Ujung is a local aggregate that can be found in  Bener Meriah District. It has not been utilized maximally  due to its porosity and high aggregate absorption. This research is conducted to see improvement of the characteristics that can be done to the asphalt mixture using the fine aggregate from Jamur Ujung. It is expected that this aggregate is feasible to be used as an asphalt mixture material in accordance to the specifications set by Bina Marga. This research was conducted by producing test objects (specimen) to determine the optimum asphalt content using standard aggregate from Lepung Baleuh, Kuta Cot Glie, Aceh Besar District, then the test object with combination of standard fine aggregate mixture with fine aggregate of Jamur Ujung with the variation percentage respectively by 25%, 50%, 75% and 100% at 5.35%, 5.87% and 6.35% asphalt content in the mixture of AC-WC. The results of this study show the mixture that meets specifications that represent all Marshall characteristics is a mixture with substitution of 50% fine aggregate of Jamur Ujung at 5.87% asphalt content with a stability value of 1355.90 Kg. Results of this research also show that fine aggregate of Jamur Ujung can be used as road construction project especially for asphalt concrete work (AC-WC).

scholarly journals BAHAN TAMBAH SERAT ECENG GONDOK PADA LASTON TIPE XI TERHADAP INDEKS MARSHALL TEST MENGGUNAKAN KERIKIL MANTUP

UKaRsT ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 8
Author(s):  
Sugeng Dwi Hartantyo ◽  
Rasiyo Hepiyanto
Keyword(s):  
Asphalt Concrete ◽  
Water Hyacinth ◽  
Heavy Traffic ◽  
Asphalt Mixture ◽  
Cellulose Fiber ◽  
Fine Aggregate ◽  
Traffic Loads ◽  
Marshall Test ◽  
Technical Specifications

Laston is a mixture of coarse aggregate, fine aggregate, and filler with a binder under the temperature of 145-155oC with the composition being studied and regulated by technical specifications. Laston is also known as AC (Asphalt Concrete).Laston itself is commonly used in Indonesia with continuous gradations used for heavy traffic loads. To get the addictive material is not easy and the material is expensive. Therefore, it is necessary to find alternatives to the cellulose fiber. Water hyacinth is a water weed that once grow and develop, it has high cellulose fiber content, which is about 60%.For that, done a research to add a hot asphalt mixture material that aims to improve the quality of mixed result. The selected material is natural water hyacinth. The method used is trial and error with reference of SNI 03-1737-1989. Variations used are 3%, 5%, and 7% of the asphalt weight, asphalt level used Is 5.61%.The result of this study is Marshall evaluation where the greatest score obtained for stability is 1325 kg,  Flow is 3.73 mm, Quotient Marshall is 401.02 kg/mm, VMA is 66.30%, VFWA is 19.25%, and VIM score is 54.35 %. With this result, the asphalt mixture can not be used because the results of VMA, VFWA, and VIM have not been suitable on specification of SNI 03-1737-1989.  Keywords: Laston, Asphalt Concrete, Water Hyacinth, SNI 03-1737-1989.

scholarly journals Laboratory Evaluation of Hot Asphalt Concrete Properties with Cuban Recycled Concrete Aggregates

2018 ◽  
Vol 10 (8) ◽  
pp. 2590 ◽  
Author(s):  
Debora Acosta Alvarez ◽  
Anadelys Alonso Aenlle ◽  
Antonio Tenza-Abril
Keyword(s):  
Asphalt Concrete ◽  
Aggregate Size ◽  
Asphalt Mixtures ◽  
Recycled Concrete ◽  
Construction And Demolition Waste ◽  
Recycled Aggregates ◽  
Laboratory Evaluation ◽  
Maximum Aggregate Size ◽  
Demolition Waste ◽  
Aggregate Fraction

Recycled Aggregates (RA) from construction and demolition waste (CDW) are a technically viable alternative to manufacture of asphalt concrete (AC). The main objective of this work is to evaluate the properties of hot asphalt mixtures that have been manufactured with different sources of CDW (material from concrete test specimens, material from the demolition of sidewalks and waste from prefabrication plants) from Cuba. Dense asphalt mixtures were manufactured with a maximum aggregate size of 19 mm, partially replacing (40%) the natural aggregate fraction measured between 5 mm and 10 mm with three types of RA from Cuba. Marshall specimens were manufactured to determine the main properties of the AC in terms of density, voids, stability and deformation. Additionally, the stiffness modulus of the AC was evaluated at 7 °C, 25 °C and 50 °C. The results corroborate the potential for using these sources of CDW from Cuba as a RA in asphalt concrete, thereby contributing an important environmental and economic benefit.

The Effectiveness of Using RAA-TA Additives for the Preparation of Warm Asphalt Concrete

2017 ◽  
Vol 865 ◽  
pp. 259-262 ◽  
Author(s):  
Valentina V. Yadykina ◽  
Anatoly M. Gridchin ◽  
Anna Trautvain ◽  
Vladimir Kholopov
Keyword(s):  
Asphalt Concrete ◽  
Water Saturation ◽  
Asphalt Mixture ◽  
Road Construction ◽  
State Standards ◽  
Adhesive Properties ◽  
Preparation Temperature ◽  
Asphalt Mix ◽  
Positive Effect ◽  
Physical And Mechanical Characteristics

The possibility to reduce the temperature during manufacturing and the temperature of compaction of asphalt mix by introducing the specially designed RAA-TA (Road Adhesive Additive for the warm asphalt concrete) additive to the bitumen has been demonstrated. Reducing the preparation temperature for asphalt mixture to 130 ° C, and the compaction temperature of the hot mix to 100 ° C, by using the additives, the characteristics of warm asphalt concrete meet the requirements of State Standards for hot asphalt concrete. The results indicate that the administration of additives improves strength at 20 and 50 ° C and reduces this index at 0 ° C, and with increasing the concentration of the researched additive its positive effect increases. The greatest effect of the additive is observed on such parameters as water saturation and water resistance of asphalt concrete, which is obviously connected with the improved encapsulation of mineral materials by bitumen due to the reduction of its viscosity and improvement of adhesive properties due to the additive composition. This will reduce the fuel consumption, the emissions of harmful substances into the atmosphere during the bituminous mixture production and asphalt coating making, as well as increase the distance of its transportation to the work site. At the same time the physical and mechanical characteristics of asphalt concrete with the addition of RAA-TA do not deteriorate. As a result of reducing the temperature of laying and compacting of asphalt mix the season of road construction can be extended and the pressure on the environment can be significantly reduced.

Laboratory Investigate of the Effect of Fine Aggregates on Asphalt Mixture Materials

2011 ◽  
Vol 225-226 ◽  
pp. 577-580
Author(s):  
Yong Ye ◽  
Yi Zhou Cai
Keyword(s):  
Compressive Strength ◽  
Asphalt Mixture ◽  
Aggregate Size ◽  
Asphalt Mixtures ◽  
Fine Aggregate ◽  
Test Results ◽  
Creep Tests ◽  
Aggregate Gradation ◽  
Static Creep ◽  
Fine Aggregates

The objective of this study is to investigate and evaluate the effect of fine aggregates (aggregate size smaller than or equal to 2.36 mm) on the compressive strength and creep behavior of asphalt mixtures. The variables that are considered in the study include the sizes and gradations of fine aggregate. A kind of standant aggregate gradation and four kinds of reduced aggregate gradation mixture specimens are used. Uniaxial compression and static creep tests were realized at different loading conditions. The test results showed that the different fine aggregate sizes do not result in significant differences in compressive strength and creep values using the same percentage of fine aggregates (38.4%). Only the different gradations showed a little differences for mixtures made with different gradations but same aggregate size (between 2.36 and 1.18 mm).

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