Construction and Transportation Department, University of Padova, Padova, Italy.
J Hazard Mater. 2010 Sep 15;181(1-3):938-48. doi: 10.1016/j.jhazmat.2010.05.104. Epub 2010 May 31.
The paper presents the results of a laboratory study aimed at verifying the use of two types of electric arc furnace (EAF) steel slags as substitutes for natural aggregates, in the composition of base course and road base asphalt concrete (BBAC) for flexible pavements. The trial was composed of a preliminary study of the chemical, physical, mechanical and leaching properties of the EAF steel slags, followed by the mix design and performance characterization of the bituminous mixes, through gyratory compaction tests, permanent deformation tests, stiffness modulus tests at various temperatures, fatigue tests and indirect tensile strength tests. All the mixtures with EAF slags presented better mechanical characteristics than those of the corresponding asphalts with natural aggregate and satisfied the requisites for acceptance in the Italian road sector technical standards, thus resulting as suitable for use in road construction.
本文介绍了一项实验室研究的结果，该研究旨在验证两种类型的电弧炉（EAF）钢渣作为天然骨料的替代品，在用于柔性路面的基层和道路基层沥青混凝土（BBAC）中的应用。该试验由对 EAF 钢渣的化学、物理、机械和浸出性能的初步研究组成，然后通过旋转压实试验、永久变形试验、不同温度下的刚度模量试验、疲劳试验和间接拉伸强度试验，对沥青混合料的配合比设计和性能进行了表征。所有使用 EAF 渣的混合料的力学性能均优于相应的天然骨料沥青混合料，并且满足意大利道路部门技术标准的验收要求，因此适合用于道路建设。
