沥青混凝土路面病害及防治研究

沥青混凝土路面各种病害是影响沥青混凝土路面使用性能的重要因素。文章详细论述了沥青混凝土路面的各种病害形式,并对各种病害出现的原因进行了分析,对如何控制沥青混凝土路面质量进行了全面的论述,为沥青混凝土路面病害的预防及治理提供了依据。     

沥青混凝土路面施工中常见病害及防治

随着社会经济的快速发展,公路交通建设中沥青混凝土路面施工越来越多,沥青混凝土路面的病害随之增加,近年来也在不断加大沥青混凝土路面的病害防治力度。由于沥青混凝土路面具有表面平整、行车安全舒适、施工方便等优点,所以在公路路面施工中得到了广泛的应用,但是在沥青混凝土路面施工中的常见病害影响了路面施工质量和工程使用效果,降低了行车的舒适度和安全性,所以,对于沥青混凝土路面施工中常见的病害及防治的研究具有重要的现实意义。本文介绍了沥青混凝土路面的使用现状和常见病害及产生原因,并提出了几点解决沥青混凝土路面常见病害的措施,以供相关工作人员参考借鉴。     

沥青混凝土路面早期病害浅析

结合工程实践，介绍了目前高速公路路面出现的早期病害，阐述了沥青混凝土路面早期病害的原因，提出了防治沥青混凝土路面早期病害的措施，以提高沥青混凝土路面的使用寿命。     

沥青混凝土路面市政道路管线检查井病害成因与防治

沥青混凝土路面机动车道检查井井周病害多发,影响行车安全,其病害防治是市政维护部门日常重要工作。本文对沥青混凝土路面市政道路检查井病害分布和病害成因进行了调查分析,总结了沥青混凝土路面市政道路检查井病害形成要素和影响程度,并对沥青混凝土路面市政道路机动车道管线检查井病害防治技术进行了分析,提出了建议。     

沥青混凝土路面病害产生原因及处理措施

通过对沥青混凝土路面常见病害的分析和对《公路养护技术规范》的研究,揭示沥青混凝土路面病害产生的原因,并以石安高速公路邢台至安阳段路面养护为例,提出高等级公路沥青混凝土路面病害的一些处理措施.     

沥青混凝土路面病害分析

分析了沥青混凝土路面病害产生的原因,提出了沥青混凝土路面病害防治对策。     

沥青混凝土路面施工中常见病害及防治

沥青混凝土的路面由于具有使用寿命长、抗耐性强等优势而被广泛应用于当前我国公路的路面中,而随着当前经济的发展以及公路路面施工规模的增大,沥青混凝土路面的施工中出现的病害问题也越来越多。本文先分析了沥青混凝土路面施工常见病害的类型,再对这些常见病害的成因进行了相关的阐述,最后再有针对性地提出了当前我国沥青混凝土路面施工中常见病害的防治措施,希望对我国沥青混凝土路面施工的完善能有一定的指导和借鉴意义。     

沥青混凝土路面病害的成因及防治技术研究

分析沥青混凝土路面出现病害的原因,提出防治病害的措施,从而延长沥青混凝土路面的使用寿命。     

河西地区沥青混凝土路面病害分析与防治

本文通过查阅大量文献资料和工作经验总结,对河西地区沥青混凝土路面病害进行了分析,并总结了河西地区沥青混凝土路面病害防治对策,希望能对河西地区沥青混凝土路面的建设有所益处。     

沥青混凝土路面病害成因分析及对策

结合沥青混凝土路面的广泛应用,对沥青混凝土路面的病害成因进行了分析,提出了沥青混凝土路面病害预防措施,以加强道路施工管理,提高工程施工质量,达到延长道路使用寿命、提高经济效益的目的。     

旧水泥混凝土路面加铺沥青层的应用研究

以松滋市区乐乡大道——城市主干道为研究对象,分析了旧水泥混凝土路面的病害处理方法,对加铺的沥青、沥青混凝土和集料提出具体的技术要求,并探讨旧水泥混凝土路面加铺沥青层的施工方法,从而为旧水泥混凝土路面的加铺改造积累了经验。     

多孔沥青混凝土路面的调研分析

多孔沥青混凝土具有排水、降噪等优良性能,广泛应用于表面层。通过调研和整理,介绍了多孔沥青混凝土路面的起源、发展以及在我国的实践。同时,调研分析了多孔沥青混凝土路面的强度机理、降噪机理与排水机理。最后指出了未来多孔沥青混凝土的研究方向。     

Effect of asphalt film thickness on the moisture sensitivity characteristics of hot-mix asphalt

Temperature, air and water are the common factors that profoundly affect the durability of asphalt concrete mixtures. In mild weather conditions, distresses such as permanent deformation, fatigue cracking can be encountered on the pavements due to traffic loading. But when a severe climate is in question, these stresses increase in poor materials; under inadequate control; with traffic as well as with water which are key elements in the degradation of asphalt concrete pavements. Many variables affect the amount of water damage in asphalt concrete layer. Among them, mixture design properties such as air void level, permeability, asphalt content and asphalt film thickness are the ones that must be investigated carefully.     

影响沥青混凝土路面平整度的因素及应对措施

结合沥青混凝土路面施工实践,对影响沥青路面平整度的原因从五个方面分别进行了分析,并提出相应的解决方案和预防措施,从而保证路面平整度,提高路面工程质量。     

Application of Markov chains and Monte Carlo simulations for developing pavement performance models for urban network management

Existing performance models developed for interurban pavements are not applicable to urban pavements due to differences in traffic demands and deterioration trends. The objective of the study was to develop performance models for the management of urban pavement networks. Markov chains and Monte Carlo simulation were applied to account for the probabilistic nature of pavements deterioration over time, using data collected in the field. One of the advantages of this methodology is that it can be used by local agencies with scarce technical resources and historical data. Eight performance models were developed and successfully validated for asphalt and concrete pavements in humid, dry and Mediterranean climates with different functional hierarchies. The resulting models evidence the impact of design, traffic demand, climate and construction standards on urban pavements performance. Predicted service life of asphalt and concrete pavements in primary networks are consistent with design standards. However, pavements in secondary and local networks present shorter and longer service life compared to design life, respectively. Climate is a relevant factor for asphalt pavements, where higher deterioration was observed compared to that expected. Opposite to this, no relevant differences between design and performance can be attributed to climate in concrete pavements.     

旧水泥混凝土路面加铺沥青混凝土浅析

简单介绍了旧水泥混凝土路面使用现状及改善行车条件的必要性,分析了在旧水泥混凝土路面上加铺沥青的可行性,具体阐述了加铺沥青前的技术准备和对路面的技术处理及病害预防措施,以指导实践。     

浅析城市道路路面状况预测模型

对城市路面管理系统的概况进行了阐述，并针对我国城市道路的特点，提出了与水泥混凝土路面和沥青混凝土路面分别对应的路面性能预测模型，为建立城市道路路面性能预测模型提供了新的思路，为广州市路面管理系统的开发提供参考。     

提高沥青路面使用寿命的途径

本文从道路基层施工质量控制、沥青混合料的性能控制以及沥青砼的施工质量控制等方面进行分析 ,就如何提高沥青路面使用寿命进行探讨 ,并介绍了土工布在旧沥青路面维修中的应用。     

Analysis of fatigue crack growth behavior in asphalt concrete material in wearing course

Fatigue crack is a main form of structural damage in flexible pavements. Under the action of repeated vehicular loading, deterioration of the asphalt concrete materials in pavements, caused by the accumulation and growth of micro and macro cracks, gradually takes place. The indirect tensile fatigue testing (ITFT) was carried out on three types of asphalt concrete materials comprising a high stiffness Gilsonite modified wearing course (GM-ACWC), stone mastic asphalt (SMA) and conventional asphalt concrete wearing course (ACWC) to establish fatigue damage model and failure criteria. Fatigue damage model, based on continuum damage approach, to describe the formation of micro-cracks and crack propagation was developed for the wearing course materials. With the fatigue damage model, finite element analysis was carried out to study the crack resisting performance of the three wearing course materials in a flexible pavement structure.     

Status of porous pavement research

This paper discusses the U.S. Environmental Protection Agency's porous pavement research program along with the economics, advantages, potential applications, and status and future research needs of porous pavements.Porous pavements are an available stormwater management technique which can be used on parking lots and low volume roadways to reduce both stormwater runoff volume and pollution. In addition, groundwater recharge is enhanced. Also, cost reductions result due to elimination of curbs, drains, and small sized storm sewers.Porous asphalt pavements consist of a relatively thin course of open graded asphalt mix over a deep base of large size crushed stones. Water can be stored in the crushed stone base until it can percolate into the subbase or drain laterally. Other porous pavement types include concrete lattice blocks and a porous concrete mix.