长沙理工大学学报(自然科学版)
温拌高模量沥青混合料性能试验研究
作者:
作者单位:

(南京市城市道路管理中心,江苏南京 210000)

作者简介:

陈安京(1980-),男,高级工程师,主要从事城市道路桥梁管理等方面的研究工作。

通讯作者:

陈安京(1980-),男,高级工程师,主要从事城市道路桥梁管理等方面的研究工作。

中图分类号:

U414

基金项目:

江苏省自然科学基金资助项目(BK20180113,BK20181112)


Experimental research on the performance of warm mix high-modulus asphalt mixture
Author:
Affiliation:

(Urban Road Management Center of Nanjing,Nanjing 210000, China)

Fund Project:

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    摘要:

    针对沥青路面的车辙病害以及热拌施工产生的环境污染问题,设计出了一种温拌高模量沥青混合料。通过黏度试验、软化点试验以及延度试验分析了两种温拌剂的适用性;通过车辙试验、低温小梁弯曲试验、浸水马歇尔试验及冻融劈裂试验对高模量沥青混凝土的路用性能进行了研究;开展了热拌和温拌两种工艺的对照试验,对比分析了温拌工艺对高模量沥青混凝土路用性能的影响。结果表明:有机蜡类温拌剂能够提高SBS沥青的软化点以及60℃旋转黏度,但对于5℃延度有不利影响;有机蜡类温拌沥青混合料HMAC-13的动稳定度比热拌沥青混合料HMAC-13的稍有降低,但降幅不大;有机蜡类温拌沥青混合料HMAC-13的抗弯拉强度和劲度模量比热拌沥青混合料HMAC-13的高,但其极限破坏应变略小于热拌沥青混合料HMAC-13的;有机蜡类温拌沥青混合料HMAC-13浸水马歇尔残留强度以及冻融劈裂强度均大于热拌沥青混合料HMAC-13的,表明其水稳定性优于传统热拌沥青混合料HMAC-13的。

    Abstract:

    In order to solve the rutting disease of the asphalt pavement and the environmental pollution caused by the hotmix construction,awarm mix high-modulus asphalt mixture was designed. The applicability of the two kinds of warm mixers was analyzed by viscosity test, softening point test and ductility test. The pavement performance of high-modulus as- phalt concrete was studied through rutting test,low-temperature beam bending test, immersion Marshall test and freeze-thaw splitting test.Acontrast test of hot mix and warm mix technique was carried out to compare and analyze the effect of warm mix technique on the pavement performance of high-modulus asphalt concrete. The results show that theorganic waxwarm mixagent can increase the softening point and 60℃rotary viscosity of SBS asphalt, but it has anadverse effect on the ductility at 5℃. The dynamics tability of theorganic waxwarm mix asphalt mixture HMAC-13 is slightly lower compared with that of the hot mixasphalt mixture HMAC-13, but the decrease is not significant. The flexural tensile strength and stiffness modulus of the organic waxwarm mixasphalt mixture HMAC-13 are higher than that of the hot mix asphalt mixture HMAC-13, but it sultimate failure strain is slightly smaller than that of the hot mixasphalt mixture HMAC-13.The immersion Marshall residual strength and freeze-thaw splitting strength of the organic waxwarm mix asphalt mixture HMAC-13 are higher than that of the hot mixasphalt mixture HMAC-13, indicating that theorganic waxwarm mixasphalt mixture HMAC-13 has better water stability.

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引用本文

陈安京.温拌高模量沥青混合料性能试验研究[J].长沙理工大学学报(自然科学版),2021,18(1):33-39.
CHEN An-jin. Experimental research on the performance of warm mix high-modulus asphalt mixture[J]. Journal of Changsha University of Science & Technology (Natural Science),2021,18(1):33-39.

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  • 在线发布日期: 2022-02-22
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