查询词典 macadam aggregate type

The results show that the addition of polypropylene fiber can reduce the dry shrinkage coefficient and thermal shrinkage coefficient of cement stabilized macadam effectively.

结果表明：聚丙烯纤维的掺入可以有效地减小水泥稳定碎石的干缩系数和温缩系数。

Grading macadam with good temperature and humidity stability is laid out under tunnel pavement to drain permeability from bedrock.

具有良好温湿稳定性的级配碎石常设置在隧道路面下排出基岩上渗水。

Road engineering ; asphalt stabilized macadam base ; experimental research ; gradation design ; five control sieve design method

道路工程；沥青稳定碎石基层；试验研究；级配设计；五控制点级配设计方法

According to climate characteristics in Heilongjiang Province,the using state of lime-fly ash macadam as base layer in existing highway was investigated,and the failure reason was analyzed and compared with researched result in this paper.

针对黑龙江省寒冷的气候特点，对已建公路二灰碎石半刚性基层的使用状况进行调查，分析破坏的原因，并与研究成果进行比较。

But in the long-term use of the process, it has a few shortcomings, such as the deformation of cement stabilized macadam base become poor, it is easy to crack with the changes in temperature and humidity, the high value of the modulus, high incidence of premature.

但是在长期地使用过程中，水泥稳定碎石基层的变形能力差，在温度和湿度变化时容易开裂：模量值偏高，易发生早期破坏的缺点。

The results show that the addition of polypropylene fiber has little impact on each strength of cement stabilized macadam, but it can reduce the compressive resilient modulus and flexural elastic modulus evidently.

结果表明：聚丙烯纤维的掺入对水泥稳定碎石的各种强度影响不大，但使回弹模量和抗弯拉弹性模量有显著的降低。

Many were built using specifications of 19th century Scottish engineers The specifications of Thomas Telford and John MacAdam stressed the importance of adequate drainage.

很多公路的建设是按照19世纪苏格兰工程师的标准建设的。Thomas Telford and John MacAdam的规格强调充分的排水装置的重要性。

The Semi-rigid Base course material made of Lime-fly-ash bound macadam has been widely used in highway construction of China for its high workability and notable economic benefits.

半刚性路面基层材料——二灰碎石以其优良的工作性能和显著的经济效益在我国道路建设中得到了广泛应用。

Combined with engineering instance,this paper analyzes the causes of the problems probably existed in paving road bed soil, grey soil and lime-fly ash macadam and in pavement construction,and proposes treatment measures in light of different problems,in order to ensure construction quality of road.

结合工程实例，对路床土、灰土、二灰碎石的铺设及路面施工中可能存在问题的原因进行了分析，并针对不同的问题提出针对性的处理措施，以保证道路的施工质量。

Based on some studies at home and abroad, with analysis on water damage in pavement, design method of subsurface drainage system is discussed in this paper, and the major technical performance indexes is introduced too. Through much theoretical analysis of laboratory experiments, mechanism properties and composition design method of porous cement-treated macadam is obtained.

本文在参考国内外研究成果的基础上，通过分析路面水损害机理，探讨了路面内部排水系统的设计方法，介绍了路面内部排水系统的主要技术性能指标，结合室内试验分析，探讨了多孔隙水泥稳定碎石材料性能和组成设计方法。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。