Performance investigation of steel slag porous asphalt treated mixture

2014 ◽  
pp. 279-282
Author(s):  
Canhua Li ◽  
Xiaodong Xiang ◽  
Quan Guo ◽  
Lixin Jiao
Keyword(s):  
Steel Slag ◽  
Porous Asphalt

scholarly journals Mechanical Properties of Crumb Rubber and Basalt Fiber Composite Modified Porous Asphalt Concrete with Steel Slag as Aggregate

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2552
Author(s):  
Chao Chai ◽  
Yongchun Cheng ◽  
Yuwei Zhang ◽  
Bing Zhu ◽  
Hang Liu
Keyword(s):  
Mechanical Properties ◽  
Asphalt Concrete ◽  
Steel Slag ◽  
Basalt Fiber ◽  
Crumb Rubber ◽  
Modified Bitumen ◽  
Porous Asphalt ◽  
Splitting Test ◽  
Porous Asphalt Concrete ◽  
Polymer Modified Bitumen

This paper studies the mechanical properties of porous asphalt concrete with styrene-butadiene-styrene (SBS) polymer modified bitumen as the binder, steel slag as the aggregate and crumb rubber and basalt fiber as modifiers. First, the appearance, mechanics, chemical composition and high-temperature stability of steel slag were studied by some equipment. Then, three kinds of porous asphalt concrete with SBS polymer modified bitumen as binder were produced, Namely, crumb rubber modified porous asphalt concrete (CR-PAC), basalt fiber modified porous asphalt concrete (BF-PAC), and basalt fiber and crumb rubber composite modified asphalt concrete (CM-PAC). Finally, the properties of the three kinds of modified PACs were studied through the Marshall test, freeze-thaw splitting test, low-temperature splitting test, permeability test, and creep test. The results showed that the crush value and abrasion value of steel slag are 15.1% and 13.5%, respectively; it has excellent strength and abrasion. In addition, the steel slag shows a porous structure and it provides an interface basis for a better bond with bitumen. For the three PACs, the results showed that the Marshall stability, water stability, and low-temperature crack resistance of CM-PAC are all the best Furthermore, CM-PAC has better rutting resistance than two single modified PACs, based on creep test results. The CM-PAC in this study can be used as a new type of pavement material.

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.

Utilisation of Steel Slag as an Aggregate Replacement in Porous Asphalt Mixtures

2014 ◽  
Vol 69 (1) ◽  
Author(s):  
Mohd Rosli Hainin ◽  
Gatot Rusbintardjo ◽  
Mohd Anwar Sahul Hameed ◽  
Norhidayah Abdul Hassan ◽  
Nur Izzi Md. Yusoff
Keyword(s):  
Resilient Modulus ◽  
Steel Slag ◽  
Road Construction ◽  
Developed Countries ◽  
Crumb Rubber ◽  
Asphalt Mixtures ◽  
Public Works ◽  
Porous Asphalt ◽  
Significant Difference ◽  
By Products

The utilization of porous asphalt mixtures has become increasingly important. This type of pavement has been used in many developed countries for many years with the addition of by-products to reduce the consumption of aggregates in road construction. Recently, the Malaysian Public Works Department (PWD) launched specifications for specialty mixtures and surface treatments, including porous asphalt. Therefore, this study was conducted to investigate the use of steel slag as a conventional aggregate replacement in porous asphalt mixtures. Two porous asphalt gradations, designated as Grade A and Grade B, were used in this study in accordance with the new specification – JKR/SPJ/2008-S4. Steel slag was chosen because its characteristics are quite similar to those of aggregates compared with other by-products such as crumb rubber, glass and many more. It was observed that steel slag aggregate meets all the criteria of the PWD specification except for the water absorption test. The samples of steel slag aggregate mixtures produced were tested for resilient modulus, rutting and permeability, which were later compared with conventional aggregate mixtures. The results show that there is a significant difference in terms of resilient modulus between the steel slag aggregate-based mixture and the conventional aggregate-based mixture. The same scenario was observed in the rutting test, where the steel slag aggregate mixture possesses a higher rut resistance. However the mixtures made from conventional aggregate had higher permeability values compared to the steel slag mixtures. It can be concluded that the use of steel slag could performed admirably during high traffic loading.

scholarly journals Mechanical Performance of Warm-Mixed Porous Asphalt Mixture with Steel Slag and Crumb-Rubber–SBS Modified Bitumen for Seasonal Frozen Regions

Materials ◽  
2019 ◽  
Vol 12 (6) ◽  
pp. 857 ◽  
Author(s):  
Yongchun Cheng ◽  
Chao Chai ◽  
Chunyu Liang ◽  
Yu Chen
Keyword(s):  
Low Temperature ◽  
Crack Resistance ◽  
Acid Amide ◽  
Steel Slag ◽  
Asphalt Mixture ◽  
Crumb Rubber ◽  
Modified Bitumen ◽  
Porous Asphalt ◽  
Water Sensitivity ◽  
Temperature Crack

In this paper, the performance of a warm-mixed porous asphalt mixture (PAM) with steel slag as aggregate and crumb-rubber–SBS (styrene-butadiene-styrene) modified bitumen as a binder was studied. Two kinds of warming additives were used, namely ethylene bis stearic acid amide (EBS) and stearic acid amide (SA). The mixtures were investigated for their permeability, Marshall stability, low-temperature crack resistance, and underwent a rutting test, water sensitivity evaluation and Cantabro particle loss test. Then, the viscoelastic and dynamic characteristics of the mixtures were also analyzed. The results showed that the addition of the warming additives allowed the decrease of the manufacturing temperature by 10 °C. Thus, the addition of warming additives significantly improves the low-temperature crack resistance and slightly reduces the water sensitivity, weakly increases the permeability, and has little effect on the resilient modulus. Since the addition of SA significantly improves the low-temperature crack resistance and rutting resistance of the PAM, SA is therefore recommended for pavement engineering in seasonal frozen regions.

scholarly journals Laboratory Evaluation on the Performance of Porous Asphalt Mixture with Steel Slag for Seasonal Frozen Regions

2019 ◽  
Vol 11 (24) ◽  
pp. 6924 ◽  
Author(s):  
Hanbing Liu ◽  
Bing Zhu ◽  
Haibin Wei ◽  
Chao Chai ◽  
Yu Chen
Keyword(s):  
Low Temperature ◽  
Coarse Aggregate ◽  
Steel Slag ◽  
Laboratory Evaluation ◽  
Cracking Resistance ◽  
Complete Replacement ◽  
Porous Asphalt ◽  
Natural Aggregate ◽  
Low Temperature Cracking ◽  
Four Levels

Porous asphalt mixtures with steel slag (PAM-SS), as an eco-friendly and low-cost pavement material, are conducive to addressing the issue of urban floods and natural resource shortages. The primary objective of this paper was to explore the feasibility of the application of PAM-SS for seasonal frozen regions, and ascertain the optimal replacement percentage of natural aggregate. Steel slag coarse aggregate (SSCA) was used to replace basalt coarse aggregate (BCA) at four levels (25%, 50%, 75%, 100%) by equal volume. The volume characteristics, mechanical properties, low-temperature cracking resistance, water stability, and freeze-thaw (F-T) durability of the mixture were assessed. The results indicated that the low-temperature cracking resistance of the mixture was significantly enhanced and acoustic emission (AE) energy was uniformly released by the incorporation of steel slag. Furthermore, the porosity, permeability, Marshall stability (MS), and the resistance against water damage and F-T cycles were also significantly improved. Based on the experimental results, the complete replacement of natural aggregate is advisable to obtain an optimal overall performance.

Evaluations of Performance and Thermal Properties in Porous Asphalt Concrete Containing Steel Slag

2014 ◽  
Vol 1025-1026 ◽  
pp. 688-692 ◽  
Author(s):  
Dana Mutiara Kusumawardani ◽  
Jyh Dong Lin
Keyword(s):  
Thermal Properties ◽  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Steel Slag ◽  
Porous Asphalt ◽  
Coarse Aggregates ◽  
Bof Slag ◽  
Porous Asphalt Concrete ◽  
Different Levels

In this study, porous asphalt concrete (PAC) containing different levels of steel slag are constructed to evaluate the performance and the thermal properties of the pavement. There will be two types of steel slag used in this study, they are Baosteel's Slag Short Flow (BSSF) slag and blast oxygen furnace (BOF) slag. The previous research proved that using steel slag as aggregate can improve the performance of asphalt pavement. However, steel slag is able to store heat so that using steel slag as aggregates will affect the thermal properties of the pavement. The goal of this studies is to find the optimum percentage of steel slag as subtitutes for coarse aggregates in porous asphalt based on performance and thermal properties.

Sign in / Sign up

Export Citation Format

Share Document