武汉理工大学学报(交通科学与工程版)
武漢理工大學學報(交通科學與工程版)
무한리공대학학보(교통과학여공정판)
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY(TRANSPORTATION SCIENCE & ENGINEERING)
2015年
2期
414-418
,共5页
RA P掺量%乳化沥青冷再生%力学性能%路用性能
RA P摻量%乳化瀝青冷再生%力學性能%路用性能
RA P참량%유화력청랭재생%역학성능%로용성능
RAP content%cold recycling mixture of emulsified asphalt%mechanical properties%road performance
在乳化沥青冷再生混合料中RA P掺量为40%,50%,60%和70%的条件下,对不同RA P掺量的乳化沥青冷再生混合料进行力学及路用性能研究。结果表明,随着 RA P掺量的增加,冷再生混合料的抗压强度几乎不受影响,而抗拉强度降低;相同水泥掺量下,冷再生混合料的高温抗车辙能力略有降低,相同RA P掺量下,添加一定量的水泥后能够显著改善冷再生混合料的高温抗车辙能力;水稳性能和低温抗裂性能随着RA P掺量增加均产生降低趋势,而疲劳寿命有呈现先增大后降低现象,并且通过疲劳方程回归分析得出RA P掺量越大,应力比对其冷再生混合料疲劳寿命的影响越显著。
在乳化瀝青冷再生混閤料中RA P摻量為40%,50%,60%和70%的條件下,對不同RA P摻量的乳化瀝青冷再生混閤料進行力學及路用性能研究。結果錶明,隨著 RA P摻量的增加,冷再生混閤料的抗壓彊度幾乎不受影響,而抗拉彊度降低;相同水泥摻量下,冷再生混閤料的高溫抗車轍能力略有降低,相同RA P摻量下,添加一定量的水泥後能夠顯著改善冷再生混閤料的高溫抗車轍能力;水穩性能和低溫抗裂性能隨著RA P摻量增加均產生降低趨勢,而疲勞壽命有呈現先增大後降低現象,併且通過疲勞方程迴歸分析得齣RA P摻量越大,應力比對其冷再生混閤料疲勞壽命的影響越顯著。
재유화력청랭재생혼합료중RA P참량위40%,50%,60%화70%적조건하,대불동RA P참량적유화력청랭재생혼합료진행역학급로용성능연구。결과표명,수착 RA P참량적증가,랭재생혼합료적항압강도궤호불수영향,이항랍강도강저;상동수니참량하,랭재생혼합료적고온항차철능력략유강저,상동RA P참량하,첨가일정량적수니후능구현저개선랭재생혼합료적고온항차철능력;수은성능화저온항렬성능수착RA P참량증가균산생강저추세,이피로수명유정현선증대후강저현상,병차통과피로방정회귀분석득출RA P참량월대,응력비대기랭재생혼합료피로수명적영향월현저。
Emulsified asphalt cold regeneration mixture of R admixture 40% ~ 70% change condition , the paper rseearches the mecharicw and road performance of the change rate of 10% of different RAP dosage cold regeneration mixture .The results show that :with the increase of RAP content ,the com‐pressive strength of cold recycled mixture is almost unaffected ,while reducing the tensile strength ;Under the same cement content ,cold recycled mixture for temperature rutting resistance is slightly lower ,under the same RAP content ,a certain amount of cement can significantly improve the high temperature of cold recycled mixture rutting resistance;With the increase of RAP content ,steady performance for water and low temperature reduced obviously ,the fatigue life reduce the tendency to increase after the first ;in addition ,by fatigue equation regression analysis ,with the increase of RAP content ,stress ratio produces more significant impact on the fatigue life of cold recycled mixes .