浇筑式沥青混凝土性能研究
浇筑式沥青混凝土性能研究(任务书,开题报告,外文翻译,论文17600字)
摘要
浇筑式沥青混凝土具有流动性好的优点，浇筑式摊铺一般不用碾压，只用简单的摊铺整平即可完成施工。浇筑式沥青混凝土有沥青含量高，拌和温度高和矿粉含量高等特点，较多的细集料含量和沥青使粗骨料在悬浮状态，它和一般沥青混凝土的区别是其空隙率很小，而且内部空隙不连通。
所以本论文对浇筑式沥青混凝土的设计与性能做出了研究，首先根据实验规范做了浇筑式沥青混凝土所用的材料沥青的三大指标试验，分别是针入度、延度、软化点三大指标实验。接下来开始配合比设计的部分，在设计允许范围内设计了粗、中、细三种级配，并用8%的油石比作为初始油石比，拌和制做浇筑式沥青混凝土试件，进行贯入度实验，流动性实验，依据贯入度实验和流动性实验的实验结果，确定最佳级配。在选定最佳级配之后，以初始油石比8%为基准，以0.3%为间隔，选择5个油石比，再次做贯入度与流动性试验，依据结果确定最佳油石比。
最后选定配合比之后，我们用选定的配合比制作出浇筑式沥青混凝土的试件，对试件进行高温稳定性（车辙）实验和低温抗裂性（弯曲）实验，看实验结果是否符合规范要求。最后制作动态模量的实验试件，通过试验研究试件的动态模量与相位角随着温度与频率的变化关系，找出其中的变化规律，然后绘制出动态模量的主曲线，对动态模量做进一步研究。 [资料来源：www.doc163.com]
关键词：浇筑式沥青混凝土；配合比设计； 动态模量；主曲线
Abstract
Pouring asphalt concrete has a good mobility, pouring paving generally do not have to roll, only a simple paving leveling to complete the construction. Asphalt concrete pouring asphalt content is high, high mixing temperature and high content of mineral powder, the more fine aggregate content and asphalt to coarse aggregate in the suspended state, and it is the difference between the general asphalt concrete is its porosity is very small, And the internal voids are not connected.
Therefore, this paper has made a study on the manufacture and performance of pouring asphalt concrete. First, according to the experimental specification, the three indexes of the asphalt concrete used in pouring asphalt concrete are tested, which are the three indexes of penetration, Indicator experiment. And then began to do with the design of the part of the design within the scope of the design of the design of the rough, medium and fine gradation, and with 8% of the asphalt ratio as the initial Whetstone ratio, mixing system made pouring asphalt concrete specimen, According to the experimental results of the penetration experiment and the fluidity experiment, it is determined which one is the best gradation. After selecting the best gradation, select the 5 Whetstone ratios at a distance of 0.3% based on the initial Whetstone ratio of 8%, repeat the penetration and fluidity tests, and determine the optimum Whetstone ratio based on the results.
[资料来源：http://www.doc163.com]
After the final selection ratio, we use the selected ratio to produce pouring asphalt concrete specimen, the high temperature stability (rutting) test and low temperature crack resistance (bending) experiment, to see whether the experimental results requirements. Finally, the dynamic modulus of the experimental specimen is studied. The dynamic modulus and phase angle of the specimen are studied by the relationship between temperature and frequency, and then the dynamic curve of the dynamic modulus is drawn. Modulus for further study.
Keywords： Gussasphalt；Mix design；Dynamic modulus；Main curve
[来源：http://www.doc163.com]
目录
第一章 导论 1
1.1研究的目的及意义 1
1.2国内外研究现状 2
1.2.1国外研究现状 2
1.2.2国内研究现状 3
1.3研究内容及方案 5
第二章 材料的性能检测 7
2.1针入度 7
2.2延度 9
2.3软化点 10
2.3.1软化点在80℃以下的沥青 11
2.3.2软化点在80℃以上的沥青 12
2.4集料的选择 13 [资料来源：Doc163.com]
2.4.1粗集料的选择 13
2.4.2细集料的选择 15
2.5矿粉的选择 17
第三章 配合比设计 18
3.1 原材料选择 18
3.2三个级配 18
3.3选择最佳级配 19
3.4流动度实验 20
3.4.1室内拌和方法 20
3.4.2混合料准备 20
3.4.3操作过程 20
3.4.4试验结果 21
3.5贯入度实验 22
3.5.1试验样品准备 22
3.5.2试验步骤 23
3.5.3试验结果 23
3.6确定最佳石油比 24
第四章浇筑式沥青混凝土性能研究 27
4.1高温稳定性实验 27
4.2低温抗裂性实验 28
4.2.1实验目的 28
4.2.2实验方法 29
4.3动态模量 30
4.3.1动态模量的定义 30 [来源：http://www.doc163.com]
4.3.2动态模量的实验 30
4.3.3动态模量主曲线的构建 35
第五章 结论与展望 37
5.1结论 37
5.2展望 39 [来源：http://Doc163.com]