Utilization of Steel Slag as Aggregates for Porous Asphalt Mixture

2014 ◽  
Vol 599 ◽  
pp. 261-264 ◽  
Author(s):  
Can Hua Li ◽  
Xiao Dong Xiang ◽  
Xi Ying Zhou ◽  
Xiao Qian Tu
Keyword(s):  
Coarse Aggregate ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Ratio Test ◽  
Strength Ratio ◽  
Stability Ratio ◽  
Porous Asphalt ◽  
Open Graded Friction Course ◽  
Residual Stability

Steel slag is a byproduct, making up a portion of 15-20% of iron output. Most of them are deposited in slag storing yards and thus results in many serious environment problems in China. This paper aims to explore the feasibility of utilizing steel slag as aggregates in porous asphalt mixtures. Open-graded friction course (OGFC), a permeable and porous asphalt mixture, was evolved in this paper. Residual stability ratio test, tensile strength ratio test, seepage test and rutting test got used in the research. Results showed that OGFC with steel slag as coarse aggregate had good performances.

Comprehensive Evaluation of Asphalt-Mixture Performance Based on Principal Component Analysis

2015 ◽  
Vol 1095 ◽  
pp. 280-283 ◽  
Author(s):  
Peng Tian ◽  
Gao Feng Zhan ◽  
Lei Nai
Keyword(s):  
Principal Component Analysis ◽  
Comprehensive Evaluation ◽  
Asphalt Mixture ◽  
Principal Component ◽  
Component Analysis ◽  
Asphalt Mixtures ◽  
Contribution Rate ◽  
Stability Ratio ◽  
Residual Stability ◽  
Marshall Stability

Making the test specimen of asphalt mixture, testing the parameters of specimen, such as bulk specific gravity, percentage of voids in aggregate, percent bitumen volume in asphalt mixtures, asphalt saturation,percent voids in coarse mineral aggregate, marshall stability, dynamic stability, marshall residual stability ratio, freeze-thaw splitting strength ratio. Based on the method of principal component analysis, the items of principal component and the contribution rate will be calculated. With the cumulative contribution rate of 90% for the standard, the principal components will be selected. Taking the contribution rate as the weighting, the comprehensive score will be calculated. The research shows that using the method of principal component analysis to comprehensively evaluate asphalt-mixture performance is workable.

Study on Materials Composition Design of Asphalt Mixture in Upper Layer of Xisang Highway

2014 ◽  
Vol 599 ◽  
pp. 248-251
Author(s):  
Guo Fei Zhang ◽  
Wen Bo Zeng ◽  
Ping Ping Ding ◽  
Qing Hu Zhang
Keyword(s):  
Design Method ◽  
Asphalt Mixture ◽  
Strength Ratio ◽  
Stability Ratio ◽  
Marshall Test ◽  
Split Test ◽  
Wheel Tracking Test ◽  
Road Performance ◽  
Residual Stability ◽  
Wheel Tracking

In this paper, Marshall Design method and Bailey method were utilized to design the material composition of upper layer in Xisang highway, China. And its road performance was estimated by Marshall Test, freeze and split test, wheel tracking test and fatigue test. Under the designed graduation, the residual stability ratio, split strength ratio and dynamic stability are 89.3%, 88.0% and 7752 (times/mm) respectively and the results can meet the requirement of upper layer standard in China. It confirms that the designing process of materials composition is reasonable.

scholarly journals PENGARUH PENGGUNAAN LIMBAH BETON TERHADAP PARAMETER MARSHALL CAMPURAN BERASPAL BERPORI

2020 ◽  
Vol 20 (2) ◽  
pp. 97-104
Author(s):  
Rista Siang ◽  
Amelia Makmur
Keyword(s):  
Coarse Aggregate ◽  
Asphalt Mixture ◽  
Drainage System ◽  
Asphalt Mixtures ◽  
Porous Asphalt

Abstract A problem that may occur in road pavements that are relatively impermeable to water is the runoff of water, because water cannot seep to the bottom of the pavement, so it can be drained into a drainage system. To overcome this problem, a porous asphalt mixture can be used. In this study the use of concrete waste was tried to replace the coarse aggregate used to make porous asphalt mixtures. For this reason, experiments are carried out in the laboratory, by making some specimens, which are then subject to Marshall testing. The coarse aggregate used to make the mixture is replaced by concrete waste, with a proportion of 25%, 50%, 75%, and 100%. The results of this study indicate that concrete waste changes the Marshall parameters of a porous asphalt mixture. Keywords: porous asphalt mixture; Marshall testing; concrete waste; Marshall parameter.  Abstrak Suatu permasalahan yang mungkin terjadi pada perkerasan jalan yang relatif kedap air adalah adanya limpasan air, karena air tidak dapat meresap hingga ke bawah perkerasan, untuk dapat dialirkan ke suatu sistem drainase. Untuk mengatasi masalah tersebut, dapat digunakan campuran beraspal berpori. Pada studi ini dicoba peng-gunaan limbah beton untuk mengganti agregat kasar yang digunakan untuk membuat campuran beraspal berpori. Untuk itu dilakukan percobaan di laboratorium, dengan membuat benda-benda uji, yang selanjutnya dilakukan pengujian Marshall. Agregat kasar yang digunakan untuk membuat campuran diganti dengan limbah beton, dengan proporsi sebesar 25%, 50%, 75%, dan 100%. Hasil penelitian ini menunjukkan bahwa limbah beton mengubah parameter Marshall campuran beraspal berpori. Kata-kata kunci: campuran beraspal berpori; pengujian Marshall; limbah beton; parameter Marshall.

Production and application of steel slag coarse aggregate in asphalt mixture

2017 ◽  
Vol 6 (1) ◽  
pp. 219-222 ◽  
Author(s):  
Meiling Zhao ◽  
Shaopeng Wu ◽  
Zongwu Chen ◽  
Chao Li
Keyword(s):  
Coarse Aggregate ◽  
Steel Slag ◽  
Asphalt Mixture

scholarly journals Microwave Absorption Ability of Steel Slag and Road Performance of Asphalt Mixtures Incorporating Steel Slag

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 663 ◽  
Author(s):  
Baowen Lou ◽  
Zhuangzhuang Liu ◽  
Aimin Sha ◽  
Meng Jia ◽  
Yupeng Li
Keyword(s):  
Microwave Absorption ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Temperature Stability ◽  
Asphalt Mixtures ◽  
Microwave Absorber ◽  
Self Healing ◽  
High Temperature Stability ◽  
Road Performance ◽  
On The Road

Excessive usage of non-renewable natural resources and massive construction wastes put pressure on the environment. Steel slags, the main waste material from the metal industry, are normally added in asphalt concrete to replace traditional aggregate. In addition, as a typical microwave absorber, steel slag has the potential to transfer microwave energy into heat, thus increasing the limited self-healing ability of asphalt mixture. This paper aims to investigate the microwave absorption potentials of steel slag and the effect of its addition on road performance. The magnetic parameters obtained from a microwave vector network analyzer were used to estimate the potential use of steel slag as microwave absorber to heal cracks. Meanwhile, the initial self-healing temperature was further discussed according to the frequency sweeping results. The obvious porous structure of steel slag observed using scanning electron microscopy (SEM) had important impacts on the road performance of asphalt mixtures. Steel slag presented a worse effect on low-temperature crack resistance and water stability, while high-temperature stability can be remarkably enhanced when the substitution of steel slag was 60% by volume with the particle size of 4.75–9.5 mm. Overall, the sustainability of asphalt mixtures incorporating steel slag can be promoted due to its excellent mechanical and microwave absorption properties.

LABORATORY EVALUATION ON THE EFFECT OF CLOGGING ON PERMEABILITY OF POROUS ASPHALT MIXTURES

2015 ◽  
Vol 76 (14) ◽  
Author(s):  
Norhidayah Abdul Hassan ◽  
Nor Asniza Mohamed Abdullah ◽  
Nurul Athma Mohd Shukry ◽  
Mohd Zul Hanif Mahmud ◽  
Nur Zurairahetty Mohd Yunus ◽  
...  
Keyword(s):  
Asphalt Mixture ◽  
Residential Area ◽  
Liquid Limit ◽  
Asphalt Mixtures ◽  
Public Works ◽  
Storm Water ◽  
Laboratory Evaluation ◽  
Aggregate Gradation ◽  
Porous Asphalt ◽  
The One

Porous asphalt mixture is one of the alternative solutions to increase pervious surface area due to urbanization. The uniqueness of porous asphalt surface textures and internal structures allows the mixture to become a temporary storm-water retention and capable to channel excessive storm water. However, one of the major problems that affect the performance of porous asphalt mixtures is the clogging. Therefore, this study aims to determine the effect of clogging towards the permeability of porous asphalt. A total of 30 gyratory compacted samples were fabricated according to aggregate gradation recommended by Malaysia Public Works Department. The clogging materials were collected from two different location, residential area and major highway. The composition and characteristics of the clogging materials were investigated using Plastic Limit, Liquid Limit and Scanning Electron Microscope (SEM). The permeability test was conducted to investigate the permeability rate of the compacted samples based on different clogging material types, clogging concentrations and clogging cycles. In addition, the compacted samples were scanned using X-ray Computed Tomography to obtain the air voids distribution throughout the samples for comparison. It was found that higher concentration of clogging materials and clogging cycles reduced the rate of permeability. Clogging material collected from residential area has higher tendency to clog the void spaces compared to the one obtained from highway.

scholarly journals Performance and Durability of Porous Asphalt Mixtures Manufactured Exclusively with Electric Steel Slags

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3306 ◽  
Author(s):  
Marta Skaf ◽  
Emiliano Pasquini ◽  
Víctor Revilla-Cuesta ◽  
Vanesa Ortega-López
Keyword(s):  
Mechanical Performance ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Electric Steelmaking ◽  
Porous Asphalt ◽  
Bituminous Mixtures ◽  
Abrasion Loss ◽  
Water Sensitivity ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

Electric arc furnace slag (EAFS) and ladle furnace slag (LFS) are by-products of the electric steelmaking sector with suitable properties for use in bituminous mixtures as both coarse and fine aggregates, respectively. In this research, the production of a porous asphalt mixture with an aggregate skeleton consisting exclusively of electric steelmaking slags (using neither natural aggregates nor fillers) is explored. The test program examines the asphalt mixtures in terms of their mechanical performance (abrasion loss and indirect tensile strength), durability (cold abrasion loss, aging, and long-term behavior), water sensitivity, skid and rutting resistance, and permeability. The results of the slag-mixes are compared with a standard mix, manufactured with siliceous aggregates and cement as filler. The porous mixes manufactured with the slags provided similar results to the conventional standard mixtures. Some issues were noted in relation to compaction difficulties and the higher void contents of the slag mixtures, which reduced their resistance to raveling. Other features linked to permeability and skid resistance were largely improved, suggesting that these mixtures are especially suitable for permeable pavements in rainy regions. In conclusion, a porous asphalt mixture was produced with 100% slag aggregates that met current standards for long-lasting and environmentally friendly mixtures.

Expansion Level of Steel Slag Aggregate Effects on Both Material Properties and Asphalt Mixture Performance

2019 ◽  
Vol 2673 (3) ◽  
pp. 506-515 ◽  
Author(s):  
Jamilla Emi Sudo Lutif Teixeira ◽  
Aecio Guilherme Schumacher ◽  
Patrício Moreira Pires ◽  
Verônica Teixeira Franco Castelo Branco ◽  
Henrique Barbosa Martins
Keyword(s):  
Material Properties ◽  
Mechanical Performance ◽  
Early Stage ◽  
Asphalt Binder ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Asphalt Mixtures ◽  
Mix Design ◽  
Expansion Level ◽  
Different Levels

The influence of steel slag expansion level on the early stage performance of hot mix asphalt (HMA) is evaluated. Initially, samples of Linz-Donawitz type steel slag with different levels of expansion (6.71%, 3.16%, 1.33%) were submitted to physical, mechanical, and morphological characterization to assess the effects of expansion on individual material properties. Steel slag was then used as aggregate in HMA to verify the effects of its expansion characteristics on the volumetric and mechanical performance of the asphalt mixture. Four different asphalt mixtures were designed based on Marshall mix design, using asphalt cement (pen. grade 50/70), natural aggregate (granite), and steel slag (in three different levels of expansion). The mechanical characteristics of the asphalt mixture were evaluated based on results from Marshall stability, indirect tensile strength, and resilient modulus testing. A modified Pennsylvania testing method (PTM) was also performed on the studied asphalt mixtures to verify the potential of asphalt binder film to minimize the expansive reactions of steel slag. It was observed that the level of steel slag expansion changes some of the material’s individual properties, which can affect the volumetric parameters of the mix design. The use of steel slag as aggregate in HMA also improves the mechanical properties of non-aged asphalt mixtures. Moreover, the expansive characteristics of this material could be minimized when combined with other asphalt mixture components.

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