Niz | Puni Prikaz

wangkiky · 10-18-2016, 03:10 AM

<h3>1.pavement of the phenomenon of the main reasons pit</h3>
<p>As the concrete design arrangements for the construction of modern urban traffic requirements have improved, all construction links are relatively strict, but most of the construction team is still stuck in the use of traditional techniques, while the specific design requirements and materials are not rich enough , In order to save costs in the concrete filled with a certain amount of coarse material, resulting in a large area of the overall structure of the spread of space, beyond the national traffic road construction requirements, especially in the rainy season of water permeability, which is caused by potholes The main reason for the lack of overall leadership at the grassroots level, resulting in the construction team is not necessary to monitor the supervision department, resulting in segregation of the mixture, serious, in the road put into use, gravel structure will aggravate segregation, resulting in local aggregate relative Due to partial local floating soil and floating pulp was not enough to clear the overall structure of concrete mixed with serious turbidity, easy in the construction of the concrete structure of the turbidity is very serious, The process of leading to the spread of local isolation layer, if the corresponding asphalt concrete layer leaking phenomenon, it will form a mud pack, resulting in the specific requirements of the road surface compressive capacity and shear capacity of less than the desired level and effect of internal mud Will be repeated in the road after the roll out, resulting in the collapse of the overall pavement structure or interruption, a serious impediment to people's traffic needs, is not conducive to the further completion of the cause, resulting in the accumulation of post-repair work, greatly increasing the unnecessary costs Capital investment, is not conducive to the national sustainable development strategy for further implementation.</p>
<h3>2.Patching improvements</h3>
<p>At this stage of the maintenance equipment and technology, for the road pothole repair are mainly fill-type, trench filling and the overall structure of the repair form, construction workers need to master certain technical capacity, Different temperature, humidity and other natural factors, so that high-quality, low-cost maintenance treatment, the internal structure of the order is relatively important to ensure a certain size of the process to be scientific distribution, the operation of the safety signs and certification wear And the installation must comply with the specific institutional arrangements in the push flat, integrated maintenance car plate ram, cutting machine to use to comply with certain safety rules, try not to damage the surrounding environment and pollution, in response to the specific requirements of national ecological construction. The material used is divided into hot asphalt mix, cold mix asphalt and so on.</p>
<h3>3.Repairing technology of digging and filling</h3>
<p>Through the special tool cutting machine and the good asphalt pavement structure, it is reasonable to cooperate with the pits to cut the groove, cut into the regular squares, Note the bottom of the deal with, to ensure the integrity of the bottom of the structure; pit surface is best to spray a thin layer of emulsified asphalt, and then hot asphalt mixture into the investment to ensure the forming roller effect. Note that the definition of work surface, which is necessary to measure the work to ensure that the cutting diameter is greater than the actual pit of more than 10cm, the depth of cutting should also be combined with the actual pit to define the scope; In addition, Cleaning, pay attention to the loosening of part of the pit, the waste material will be dug to ensure that the excavation from the middle to the surrounding order to ensure that the pit around the bottom and vertical to prevent the destruction of the surrounding excavation structure, the loose waste After cleaning, with 3 to 5 pressure pump blown out of magazines and dust, to ensure the absolute internal tank clean and complete effect.</p>
<p>In order to increase the integration of new materials and materials to prevent rainwater infiltration into the pit, you need to spray gun around the pit structure with thin asphalt glue, to ensure moderate use, to avoid the phenomenon of accumulation of oil on the ground, intermediate packing to ensure a high degree of Higher than the surrounding 5cm, the use of layered filling and rolling form to improve its compactness and the surface layer after rolling with the original road surface to maintain the level of cold feed if you do not need to consider the process of emulsion paint sealing process, which Construction of rolling technology will be relatively long time, but the increase in service life has certain advantages.</p>
<h3>3.Preheating pit maintenance means</h3>
<p>The preheating pothole repair technology mainly heats the potholes of the pavement through the hot-fill effect of the heating wall, which makes part of the pothole structure realize the new material filling and flattening after the hot regeneration, the later rolling process and The traffic effect of the molding is mainly ensured in this process, so we should attach great importance to the improvement of the preheating technology and ensure the reasonable development of the specific function under the certain cost. Suitable for different seasonal changes in maintenance equipment to ensure the simplicity of the operating mode, while maintenance time should not be too long, but to eliminate the phenomenon of recurrence after repair, However, the emergency method is mainly based on different temperature changes, the post-rain pits cracks have some restraint effect, so for the effective use of these technologies and equipment, need to be based on different construction requirements and the actual road The status of a reasonable choice, the package of national urbanization construction of the traffic road construction under the level of development to further improve.</p>

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willpwns · 06-30-2022, 04:16 AM

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