Properties of Asphalt Concrete Using Aggregates Composed of Limestone and Steel Slag Blends

2020 ◽  
Vol 32 (7) ◽  
pp. 06020007
Author(s):  
Saowarot Hasita ◽  
Apichat Suddeepong ◽  
Suksun Horpibulsuk ◽  
Wisanukhorn Samingthong ◽  
Arul Arulrajah ◽  
...  
Keyword(s):  
Asphalt Concrete ◽  
Steel Slag

scholarly journals Research progress of steel slag asphalt concrete

2020 ◽  
Vol 175 ◽  
pp. 11014
Author(s):  
Jian Sun ◽  
Andrii Bieliatynskyi ◽  
Kateryna Krayushkina ◽  
Oleksandra Akmaldinova
Keyword(s):  
Asphalt Concrete ◽  
Steel Slag ◽  
Research Progress ◽  
Practical Application ◽  
Excellent Performance ◽  
At Home

Steel slag asphalt concrete is one of the important components of asphalt concrete. There are some differences between the steel slag asphalt concrete and ordinary asphalt concrete. Based on the research of scholars at home and abroad, this paper systematically introduces the steel slag characteristics and excellent performance of steel slag asphalt concrete, summarizes the problems existing in the practical application of steel slag asphalt concrete, and provides references for its promotion and application.

scholarly journals Research of properties on graphite conductive slag in asphalt concrete

2020 ◽  
Vol 175 ◽  
pp. 11015 ◽  
Author(s):  
Jian Sun ◽  
Andrii Bieliatynskyi ◽  
Kateryna Krayushkina ◽  
Oleksandra Akmaldinova
Keyword(s):  
Electrical Conductivity ◽  
Asphalt Concrete ◽  
Electrical Resistance ◽  
Steel Slag ◽  
Graphite Powder ◽  
Snow Removal ◽  
Conductive Mechanism ◽  
Conductive Properties ◽  
Resistance Stability ◽  
Technical Idea

Conductive asphalt concrete can eliminate snow and icing on road areas, and is a research hot topic for intelligent snow removal. By adding graphite, the electrical resistivity of asphalt concrete can be reduced to achieve the purpose of electrical conductivity. However, the aggregate electrical resistance in asphalt concrete is very large and does not play a conductive role. It is a new technical idea to use steel slag with good electrical conductivity as aggregate to mix graphite powder with good electrical conductivity to prepare steel slag graphite conductive asphalt concrete (SGCAC). In this paper, the effects of steel slag and graphite on the conductive properties of steel slag graphite conductive asphalt concrete are separately explained, and then the conductive mechanism and electrical resistance stability of the conductive slag and graphite are studied.

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.

Reinforcement of steel-slag asphalt concrete using polypropylene fibers

2013 ◽  
Vol 44 (4) ◽  
pp. 526-541 ◽  
Author(s):  
Majid Amuchi ◽  
Sayyed Mahdi Abtahi ◽  
Behrooz Koosha ◽  
Sayyed Mahdi Hejazi ◽  
Hossein Sheikhzeinoddin
Keyword(s):  
Asphalt Concrete ◽  
Steel Slag ◽  
Polypropylene Fibers

Analysis of Traffic Noise Reduction Effects of Asphalt Concrete Pavement using Steel Slag Aggregate

2019 ◽  
Vol 21 (2) ◽  
pp. 57-64
Author(s):  
Kyungnam Kim ◽  
Shinheang Jo ◽  
Nakseok Kim ◽  
Hyunwook Kim ◽  
Hojung Lee ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Asphalt Concrete ◽  
Traffic Noise ◽  
Steel Slag ◽  
Concrete Pavement ◽  
Asphalt Concrete Pavement

A Study on a Steel Slag Asphalt Concrete Design Method Considering Density and Absorption

2018 ◽  
Vol 20 (1) ◽  
pp. 59-67
Author(s):  
Kyungnam Kim ◽  
Shinheang Jo ◽  
Nakseok Kim ◽  
Hyunwook Kim
Keyword(s):  
Asphalt Concrete ◽  
Design Method ◽  
Steel Slag

scholarly journals Induction Heating and Healing Behaviors of Asphalt Concretes Doped with Different Conductive Additives

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Hechuan Li ◽  
Jianying Yu ◽  
Quantao Liu ◽  
Yuanyuan Li ◽  
Yaqi Wu ◽  
...  
Keyword(s):  
High Temperature ◽  
Induction Heating ◽  
Asphalt Concrete ◽  
Healing Rate ◽  
Steel Fiber ◽  
Steel Slag ◽  
Rest Period ◽  
Self Healing ◽  
Heating Efficiency ◽  
Conductive Additives

It is consensual that the self-healing property of asphalt concrete can repair the damage inside it during high temperature and rest period. In order to not affect the traffic, the rest period of asphalt pavement is very short and uncontrollable; so, it is necessary to obtain enough high temperature in a limited time to achieve higher healing efficiency of asphalt concrete. The purpose of this paper is to study the induction heating efficiency and healing behaviors of asphalt concretes doped with different conductive additives. Steel fiber, steel grit, and steel slag were added to asphalt mixtures as conductive additives to prepare induction healing asphalt concretes. The steel grit and steel slag were added to replace the aggregates of corresponding particle size by equal volume to ensure the consistency of asphalt concrete volume, which can avoid degrading the performance of asphalt concrete due to the change of porosity. The induction heating efficiency and healing rate of asphalt concrete were quantified by infrared camera and three-point bending-healing experiment, respectively. The results showed that the thermal properties of asphalt concrete changed with the addition of different conductive additives. The asphalt concrete with steel fiber had the best induction heating property. While steel slag had extremely weak induction heating speed, the better thermal insulation property of the asphalt concrete with steel slag resulted in a higher induction healing rate. It was suggested to add steel slag to induction healing asphalt concrete to improve the healing rate.

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