水资源与水工程学报
水資源與水工程學報
수자원여수공정학보
JOURNAL OF WATER RESOURCES AND WATER ENGINEERING
2014年
2期
57-60
,共4页
王怀义%万连宾%杨桂权%贺传卿
王懷義%萬連賓%楊桂權%賀傳卿
왕부의%만련빈%양계권%하전경
碾压沥青混凝土%结合面%温度%剪切
碾壓瀝青混凝土%結閤麵%溫度%剪切
년압력청혼응토%결합면%온도%전절
roller compacted asphalt concrete%joint surface%temperature%shear
在碾压沥青混凝土下部固化层温度低于规范要求的70℃情况下,进行了击实结合试验,通过对结合面上下温度的监测,进行了固定45°角剪切面剪切试验。结果表明:在下层固化层温度处于-10℃和30℃环境下,进行浇筑击实,结合面温度均大于沥青软化点,并且结合良好;其结合面剪应力可达到本体的50%~60%,并且剪切变形---荷载过程有明显的塑性特征。
在碾壓瀝青混凝土下部固化層溫度低于規範要求的70℃情況下,進行瞭擊實結閤試驗,通過對結閤麵上下溫度的鑑測,進行瞭固定45°角剪切麵剪切試驗。結果錶明:在下層固化層溫度處于-10℃和30℃環境下,進行澆築擊實,結閤麵溫度均大于瀝青軟化點,併且結閤良好;其結閤麵剪應力可達到本體的50%~60%,併且剪切變形---荷載過程有明顯的塑性特徵。
재년압력청혼응토하부고화층온도저우규범요구적70℃정황하,진행료격실결합시험,통과대결합면상하온도적감측,진행료고정45°각전절면전절시험。결과표명:재하층고화층온도처우-10℃화30℃배경하,진행요축격실,결합면온도균대우력청연화점,병차결합량호;기결합면전응력가체도본체적50%~60%,병차전절변형---하재과정유명현적소성특정。
When the curing temperature of roller compacted asphalt concrete is lower than the specifica -tion requirements of 70℃, the paper carried out compaction experiment .Through monitoring the temper-ature above and under combination surface , it carried out shear test of fixed shear surface of 45 degree. The result showes that when the lower curing temperature is at the circumstance of -10 ℃ and 30 ℃, the temperature of joint surface is higher than that of softening point of asphalt and combines well by pou -ring out compaction;the shear stress of joint surface can reach 50% ~60%of ontology , and shear de-formation and loading process have obvious plastic feature .