發(fā)布時(shí)間：2018-10-15 10:56

【摘要】：通過(guò)對(duì)不同廢舊瀝青混合料摻量的水泥穩(wěn)定碎石進(jìn)行振動(dòng)擊實(shí)試驗(yàn)研究,測(cè)定其最佳含水量、最大干密度,進(jìn)行無(wú)側(cè)限抗壓強(qiáng)度及干縮試驗(yàn),確定最佳水泥摻量并對(duì)比分析廢舊瀝青混合料摻量對(duì)水泥穩(wěn)定碎石無(wú)側(cè)限抗壓強(qiáng)度和干燥收縮性能的影響。通過(guò)試驗(yàn)分析,確定最優(yōu)混合料摻量,研究其抗壓強(qiáng)度、溫縮等長(zhǎng)期性能的發(fā)展規(guī)律。結(jié)果表明,30%廢舊瀝青混合料摻量和5%水泥摻量的水泥穩(wěn)定碎石,不僅可以保證基層的強(qiáng)度,有利于基層早期強(qiáng)度形成,而且具有較好的抗溫縮性能,可以作為基層鋪設(shè)材料。
[Abstract]:Through the vibration compaction test of cement stabilized macadam with different waste asphalt mixture content, the optimum moisture content, maximum dry density, unconfined compressive strength and dry shrinkage test were measured. The optimum cement content was determined and the effect of waste asphalt mixture content on the unconfined compressive strength and drying shrinkage of cement stabilized macadam was analyzed. Through the test and analysis, the optimum mixture content is determined, and the development law of its long-term performance, such as compressive strength and temperature shrinkage, is studied. The results show that the cement stabilized macadam with 30% waste asphalt mixture and 5% cement can not only guarantee the strength of the base course, but also has good temperature shrinkage resistance and can be used as the paving material for the base course, which can not only guarantee the strength of the base course, but also be beneficial to the formation of the early strength of the base course.
【作者單位】： 蘭州理工大學(xué)理學(xué)院;
【分類號(hào)】：U414
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本文編號(hào)：2272328