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Asphalt fiberglass geogrid construction plan
With the continuous development of road traffic construction, asphalt pavement, as the main structural form of modern roads, has received more and more attention for its performance stability and durability. In order to improve the crack resistance, skid resistance and bearing capacity of asphalt pavement, asphalt geogrid, as an effective reinforcing material, has been widely used in asphalt pavement construction. This article will introduce the construction plan of asphalt geogrid in detail, including key links such as pre-construction preparation, grid laying, asphalt paving and subsequent maintenance, aiming to provide road construction personnel with practical and feasible operation guidelines.
Pre-construction preparation
1. Site preparation: Before construction, the construction site should be cleaned and leveled to ensure that there is no debris or water on the ground. For uneven areas, proper filling and compaction should be carried out to ensure the flatness of the grid laying.
2. Material preparation: According to the construction drawings and engineering requirements, prepare asphalt geogrid, asphalt mixture, tack coat oil and other materials in advance. At the same time, check the quality certification documents and performance indicators of the materials to ensure that the materials meet the construction requirements.
3. Equipment preparation: Prepare the mechanical equipment required for construction, including pavers, rollers, oil sprinklers, etc. Ensure that the equipment performs well, runs stably, and meets construction requirements.
Grating laying
1. Spraying of adhesive layer oil: Before laying the grating, spray the adhesive layer oil according to the design requirements. The adhesive layer oil should be evenly sprayed on the surface of the base to ensure the adhesion between the grating and the base.
2. Grating laying: According to the requirements of the construction drawings, lay the asphalt geogrid on the base sprayed with adhesive layer oil. During the laying process, the grating should be kept flat and taut, and wrinkles and twists should not occur. At the same time, pay attention to the longitudinal and transverse directions of the grating to ensure that it is consistent with the asphalt paving direction.
3. Fixing and overlapping: After the grating is laid, it should be fixed with steel nails or special clamps. When fixing, ensure that the steel nails or clamps are firm and reliable and not loose. The overlapping part of the grating should be carried out according to the design requirements, and the overlapping width should meet the specification requirements.
Asphalt paving
1. Asphalt mixture preparation: After the grating is laid, the asphalt mixture should be prepared in time. The proportion and performance of the asphalt mixture should meet the design requirements and be verified by tests.
2. Asphalt paving: Use a paver to spread the asphalt mixture. During the paving process, the paving speed and thickness should be controlled to ensure that the asphalt layer is uniform and dense. At the same time, pay attention to the bonding between the asphalt mixture and the grid to ensure that the two are closely combined.
3. Rolling and maintenance: After the asphalt paving is completed, rolling should be carried out immediately. During the rolling process, the principle of "light first, heavy later, slow first, fast later" should be followed to ensure that the asphalt layer reaches the specified density and flatness. After the rolling is completed, proper maintenance should be carried out, including watering to moisturize and prevent pollution, so as to increase the service life of the asphalt pavement.
Quality control and acceptance
1. Quality control: During the construction process, the quality of each link should be strictly controlled. Including the flatness, tension, and fixation of the grid laying, the ratio and performance of the asphalt mixture, and the uniformity and density of the asphalt paving. For parts that do not meet the requirements, rectification should be carried out in time.
2. Acceptance and record: After the construction is completed, acceptance work should be carried out. The acceptance content includes the quality of the grid laying, the thickness and flatness of the asphalt layer, etc. At the same time, do a good job of construction records and data collation to provide a basis for project delivery and subsequent maintenance.
Safety and environmental protection measures
1. Safety measures: During the construction process, the safety operating procedures should be strictly followed to ensure the safety of construction personnel and equipment. Set up safety warning signs to prohibit non-construction personnel from entering the construction area. At the same time, safety education and training should be carried out for construction personnel to improve their safety awareness and operating skills.
2. Environmental protection measures: During the construction process, effective measures should be taken to reduce the impact on the environment. For example, reasonably arrange the construction time to reduce noise and dust pollution; properly handle construction waste to prevent pollution to the environment; strengthen the greening and beautification of the construction site to improve the quality of the construction environment.
Conclusion
The asphalt geogrid construction plan is a key link to ensure the construction quality and stable performance of asphalt pavement. Through the introduction of this article, we can understand the key points and precautions of each link such as pre-construction preparation, grid laying, asphalt paving and subsequent maintenance. In actual construction, we should strictly follow the construction plan, strengthen quality control and safety management, and ensure the construction quality and service life of the asphalt pavement. At the same time, pay attention to the implementation of environmental protection measures to contribute to the sustainable development of road construction.
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