Precautions for asphalt concrete pavement construction
Asphalt concrete pavement construction is a highly technical work, which not only needs to be operated in strict accordance with the construction specifications, but also needs to pay attention to a series of matters to ensure the quality of construction. This article will introduce the precautions for asphalt concrete pavement construction in detail to help construction personnel complete their work better.
1. Material selection and quality control.
In the construction process of asphalt concrete pavement, material selection and quality control are crucial. First of all, it is necessary to select asphalt and aggregate that meet the design requirements to ensure the quality and stability of the material. At the same time, during the construction process, the quality inspection and control of materials should be carried out, and the use of substandard materials should be avoided, so as not to affect the quality and durability of the pavement.
2. Grassroots treatment and inspection.
The base layer is the foundation of asphalt concrete pavement, and its treatment quality is directly related to the quality and stability of the pavement. Therefore, before construction, the base layer should be treated to ensure that it is flat, solid and dry. At the same time, in the construction process, it is necessary to carry out regular inspections on the base layer, and find and deal with the problems existing in the base layer in time, so as not to affect the construction quality and stability of the road surface.
3. Preparation and transportation of asphalt mixture.
The preparation of asphalt mixture is one of the key links in the construction of asphalt concrete pavement. In the preparation process, the ratio of asphalt to aggregate, heating temperature and other parameters should be strictly controlled to ensure that the mix ratio and stability of asphalt mixture meet the design requirements. At the same time, in the process of transportation, measures should be taken to prevent the segregation and pollution of the asphalt mixture, and ensure the quality and stability of the asphalt mixture.
4. Paving and compaction of asphalt mixture.
The paving and compaction of asphalt mixture is one of the key links in asphalt concrete pavement construction. During the paving process, parameters such as paver speed, paving thickness and flatness should be controlled to ensure that the paving quality meets the design requirements. At the same time, in the compaction process, it is necessary to select the appropriate compaction machinery and compaction process, control the compaction temperature and compaction times and other parameters, and ensure that the compaction quality meets the design requirements. In addition, during the construction process, it is necessary to avoid problems such as leakage and overpressure, so as not to affect the quality and durability of the road surface.
5. Seam treatment and maintenance.
Joint treatment and maintenance is one of the important links in asphalt concrete pavement construction. In the process of joint treatment, correct construction methods and technologies should be adopted to ensure the compactness and stability of the joints. At the same time, in the process of maintenance, appropriate measures should be taken to prevent the pavement from being damaged and polluted, and to ensure the quality and durability of the pavement.
In short, asphalt concrete pavement construction is a highly technical work, which needs to be operated in strict accordance with the construction specifications. In the construction process, attention should be paid to material selection and quality control, base treatment and inspection, preparation and transportation of asphalt mixture, paving and compaction of asphalt mixture, and joint treatment and maintenance. Only by strictly controlling the construction quality and paying attention to the relevant precautions can the quality and durability of the asphalt concrete pavement be guaranteed, and meet the design requirements and use requirements.