With the continuous development of domestic highway construction,highway civil engineering and service level quality have attracted much attention.Good pavement quality and high-quality service make people feel comfor...With the continuous development of domestic highway construction,highway civil engineering and service level quality have attracted much attention.Good pavement quality and high-quality service make people feel comfortable and smooth when traveling.High-quality pavement can significantly reduce the probability of traffic accidents.At present,there is a direct relationship between pavement quality and pavement construction operations.Carrying out pavement construction operations in cold high-altitude areas requires a reasonable selection of construction equipment and methods.The application of warm-mix asphalt pavement construction technology can ensure pavement quality.Therefore,this paper analyzes the advantages of warm-mix technology,the environmental characteristics of cold high-altitude areas,and construction preparations,and discusses the construction technology of warm-mix asphalt pavement in cold high-altitude areas in detail,to improve the overall road quality of cold high-altitude areas.展开更多
With the continuous progress of social science and technology,there are increasingly more kinds of high-tech materials that can be used in the construction of subgrade and pavement.Among them,the application of nanoma...With the continuous progress of social science and technology,there are increasingly more kinds of high-tech materials that can be used in the construction of subgrade and pavement.Among them,the application of nanomaterials plays a commendatory role,improving the quality of pavement.Based on this,this paper analyzes the characteristics of nanomaterials and puts forward specific measures for the application of nanomaterials on the basis of further exploring the working principle of nanomaterials in subgrade and pavement,so as to promote the further development of subgrade and pavement construction.展开更多
The construction of rigid pavements using conventionally vibrated concrete consumes a significant amount of energy as it requires rigorous vibrations.This also requires a high number of laborers and creates noise duri...The construction of rigid pavements using conventionally vibrated concrete consumes a significant amount of energy as it requires rigorous vibrations.This also requires a high number of laborers and creates noise during construction.Thus,a new kind of concrete called semi-flowable self-consolidating concrete(SFSCC)for pavement construction using slip-form paving technology is reviewed in this article.The SFSCC requires no energy for compaction as it gets compacted under its self weight.It also renders shape stability in the fresh state which is critical to expedite the construction in slip form concreting.The review focuses on the need,evolution,and requirement of the ingredient materials,mix design,and methods for testing the properties of SFSCC.Further,the utilization of industrial wastes in the construction industry and the production of self-consolidating concrete are discussed.The literature on the effect of different materials on the properties of such concrete and field studies in this context are discussed.Lastly,its suitability as pavement construction material either in normal rural roads or in low-volume village roads is discussed in the Indian context.The review reveals that relatively less amount of study on SFSCC in general and as a pavement material in particular is available in the literature and pursuant to this,creates a wide scope of research.展开更多
文摘With the continuous development of domestic highway construction,highway civil engineering and service level quality have attracted much attention.Good pavement quality and high-quality service make people feel comfortable and smooth when traveling.High-quality pavement can significantly reduce the probability of traffic accidents.At present,there is a direct relationship between pavement quality and pavement construction operations.Carrying out pavement construction operations in cold high-altitude areas requires a reasonable selection of construction equipment and methods.The application of warm-mix asphalt pavement construction technology can ensure pavement quality.Therefore,this paper analyzes the advantages of warm-mix technology,the environmental characteristics of cold high-altitude areas,and construction preparations,and discusses the construction technology of warm-mix asphalt pavement in cold high-altitude areas in detail,to improve the overall road quality of cold high-altitude areas.
文摘With the continuous progress of social science and technology,there are increasingly more kinds of high-tech materials that can be used in the construction of subgrade and pavement.Among them,the application of nanomaterials plays a commendatory role,improving the quality of pavement.Based on this,this paper analyzes the characteristics of nanomaterials and puts forward specific measures for the application of nanomaterials on the basis of further exploring the working principle of nanomaterials in subgrade and pavement,so as to promote the further development of subgrade and pavement construction.
基金financial assistance provided by Dr.B.R.Ambedkar National Institute of Technology Jalandhar through Technical Education Quality Improvement Programme(TEQIP-Ⅲ)。
文摘The construction of rigid pavements using conventionally vibrated concrete consumes a significant amount of energy as it requires rigorous vibrations.This also requires a high number of laborers and creates noise during construction.Thus,a new kind of concrete called semi-flowable self-consolidating concrete(SFSCC)for pavement construction using slip-form paving technology is reviewed in this article.The SFSCC requires no energy for compaction as it gets compacted under its self weight.It also renders shape stability in the fresh state which is critical to expedite the construction in slip form concreting.The review focuses on the need,evolution,and requirement of the ingredient materials,mix design,and methods for testing the properties of SFSCC.Further,the utilization of industrial wastes in the construction industry and the production of self-consolidating concrete are discussed.The literature on the effect of different materials on the properties of such concrete and field studies in this context are discussed.Lastly,its suitability as pavement construction material either in normal rural roads or in low-volume village roads is discussed in the Indian context.The review reveals that relatively less amount of study on SFSCC in general and as a pavement material in particular is available in the literature and pursuant to this,creates a wide scope of research.
