摘要
高温稳定性是沥青混凝土的路用性能之一,为了更好地在公路路面工程中应用Supave-13、SMA-13和AC-13C三种类型沥青混合料,减少高温稳定性不足造成的沥青混凝土路面变形破坏。分别对Supave-13、AC-13C和SMA-13三种沥青混合料进行了动稳定度试验、单轴蠕变试验、回弹模量和抗压强度试验,结果发现:在0.7 MPa荷载条件下Supave-13的动稳定度最大;在1.05 MPa荷载条件下Supave-13的动稳定度最小;Supave-13混合料的劲度模量明显大于其他两种;Supave-13、AC-13C的抗压回弹模量相当,均大于SMA-13;Supave-13的抗压强度明显较AC-13C、SMA-13的抗压强度大;AC-13C、SMA-13的抗压强度相当。综合比较分析认为,Supave-13的高温稳定性比其他两种沥青混合料强。
High temperature stability is one of thehighway performance of asphalt concrete.In order to better apply Supave-13,SMA-13 and AC-13C in high-grade highway pavement,and reduce the deformation of asphalt concrete pavement caused by insufficient high temperature stability,Supave-13,AC-13C and SMA-13 were subjected to dynamic stability test,uniaxial creep test,rebound modulus and compressive strength test.It was found that the dynamic stability of Supave-13 under the load of 0.7 MPa It was larger than SMA-13 and AC-13C;under the condition of 1.05 MPa load,the dynamic stability of Supave-13 was smaller than other ones;the stiffness modulus of Supave-13 mixture was significantly greater than that of the other two;rebound modulus of Supave-13 and AC-13C,were equivalent and greater than SMA-13;the compressive strength of Supave-13 was significantly greater than that of AC-13C and SMA-13;the compressive strength of both AC-13C and SMA-13 was equivalent.Comprehensive comparative analysis showed that the high temperature stability of Supave-13 was stronger than the other two asphalt mixtures.
作者
吴玲玲
任其亮
罗莉
WU Lingling;REN Qiliang;LUO Li(College of Traffic&Transportation,Chongqing Jiaotong University,Chongqing 400074,China)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2020年第22期22083-22086,共4页
Materials Reports
基金
国家重点研发计划(2018YFB1601001)。
