QLB500--4000 series of asphalt concrete mixing equipment I plant, I plant on the basis of advanced foreign technology, independent development of asphalt mixing plants have independent intellectual property rights. The high degree of automation, measurement precision, modular design, reasonable and compact structure, easy operation and maintenance, energy-saving and environmental protection, can be widely used in the production of higher asphalt pavement based material.
Road Repair Equipments - Road Machinery Equipment Manufacturers
The machine uses industrial control computer central control system, measurement system used in Switzerland Toledo weighing sensor and electronic metering, said the introduction of US air cleaning bag filter bag, Germany injector burners and other advanced equipment, with a reasonable structure, excellent performance, accurate calculation, energy efficient, easy to operate. It is home to highway construction, production equipment over naive asphalt concrete. Roads are also suitable for counties and municipal road construction companies use.
Machine by the aggregate belt conveyor, cold material transmission screen, inclined belt conveyors, barrel heating system, fuel injection combustion system, ESP, chain bucket elevator, shaker hot material, aggregate storage, weighing hoppers, aggregate measurement , warehouse powder, powder measurement, asphalt metering, stirring the pot, track hoist and traction hoist, finished silos, central control room. Mixing process to form a complete system.
For mixing machine more compact and easy to operate, especially the shaker, aggregate bin, aggregate measurement, stone powder measurement, asphalt metering, stirring the pot with three-dimensional vertical layout, constitute a reasonable device group ----- mixing plant. Machine by the computer program control, can also be manually controlled boards.
Pavement Repair Equipments - Road Machinery Equipment Manufacturers
Industrial control computer central control system, measurement system used in Switzerland Toledo weighing sensor and electronic metering, said the introduction of US air cleaning bag filter bag, Germany injector burners and other advanced equipment, with a reasonable structure, excellent performance, and accurate calculation , energy efficient, easy to operate and so on. It is home to highway construction, production equipment over naive asphalt concrete. Roads are also suitable for counties and municipal road construction companies use.
Machine by the aggregate belt conveyor, cold material transmission screen, inclined belt conveyors, barrel heating system, fuel injection combustion system, ESP, chain bucket elevator, shaker hot material, aggregate storage, weighing hoppers, aggregate measurement , warehouse powder, powder measurement, asphalt metering, stirring the pot, track hoist and traction hoist, finished silos, central control room. Mixing process to form a complete system.
For mixing machine more compact and easy to operate, especially the shaker, aggregate bin, aggregate measurement, stone powder measurement, asphalt metering, stirring the pot with three-dimensional vertical layout, constitute a reasonable device group ----- mixing plant. Machine by the computer program control, can also be manually controlled boards.
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How potting road construction? Construction technology on pavement pouring glue mainly include slotted, clear joints, pouring. Of course, three simple looks simple, but the details of which aspects need attention. mainly include:
Clean seam. First, with clear saw clear sew seams of sand, mud coagulation, greater than 0.5mpa use compressed air, the elimination of seams dust and other contaminants to ensure clean and dry joints and internal wall, the wall joints to rub test no dust is pouring criteria.
Road Repair Equipments - Road Machinery Equipment Manufacturers
Taping. In taping the cracks on both sides to prevent pollution pouring glue overflow pavement��
Ingredients from full-time staff according to technical requirements and the ratio of ingredients, mix well.
Pouring can not be filled once, 2-3 times
Pavement Repair Equipments - Road Machinery Equipment Manufacturers
Clean up the site. Once pouring glue for the excess condensation overflow To clear the road to keep clean.
Construction period by both parties through consultation requirements for staffing and adjust the speed of construction.
Construction quality construction standards in strict accordance with the Ministry of Transportation road construction.
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Shanghai highway guardrail added a new batch of slot machines and cleaning vehicles, will soon work in and outside the island. New equipment to fill the vacancies in road maintenance, increased pavement, road infrastructure maintenance efforts. Slot machines for pavement crack repair,
Road Repair Equipments - Road Machinery Equipment Manufacturers can be cut out of the cracks in the pavement a slot, and then after filling the sealant inside the program to achieve the effect of pavement crack repair, to further ensure the overall road performance, extended service life of the road. Since the new slot machines purchased using double filtering and tertiary air filtering device which filters the air before entering the second stage filter means out more than 90% of the contaminant in the past Notch Pouring scene dusty scene will not ceased to exist. Arrival fence cleaning car is greatly enhanced guardrail cleaning efficiency compared to manual work but also enhance the safety of operations.
Pavement Repair Equipments - Road Machinery Equipment Manufacturers Newly purchased fence cleaning vehicles with four rotating brushes 0-45 degree angle technology, to achieve horizontal and vertical fence brushing. Nylon filament with rubber mixing technology, efficient cleaning of the fence is also easy to damage the paintwork. The car is also equipped with high-pressure water jets for flushing the crossbar, making cleaning more effective, more efficient rate.
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Well-known highway beautification inseparable asphalt distributor, the device is in the beautification of our living environment, play a big role,
Road Repair Equipments - Road Machinery Equipment Manufacturers showing the quality of performance, that is what we see. But we choose asphalt distributor still need to pay attention to what the problem, explore together.We found in the technical specifications for highway construction, fixed asphalt distributor are there provisions. Different is going to affect the flow of its speed asphalt pump, asphalt for professional engine driven pump asphalt distributor, its speed and the speed can all be adjusted by the engine. Thus, the two work closely together to make reasonable adjustments in order to achieve good spraying results. Therefore, we selected asphalt cloth car, do not just look at its external quality, but also according to various properties of asphalt distributor, such as asphalt pump flow, and the vehicle speed is consistent.
Pavement Repair Equipments - Road Machinery Equipment Manufacturers
Bituminous material. Treatment bituminous asphalt surface permeability material requirements, setting time is short, good adhesion, ease of construction and poured, good durability, materials commonly used in asphalt road asphalt, emulsified asphalt or coal tar. Treatment road asphalt is an ideal material for the construction of the asphalt surface, due to the poor permeability asphalt road, to improve adhesion, should be poured on the base layer of transparent, when using liquid petroleum pitch selection rapidly solidified liquid asphalt to shorten forming period. The construction of different asphalt content should be determined according to the temperature construction, asphalt grade, base, asphalt dosage should be increased by 15% -20% higher than the amount of oil when using coal tar pitch. When using emulsified asphalt, bitumen emulsion amount should be converted content road asphalt, emulsified asphalt and coal tar pitch type and grade required to choose.
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The floor slabs produced by uneven settlement of the foundation are accompanied by a portion of the concrete along the height of the building
Soil components and internal and external wall cracking and other characteristics. Such as: a teaching building for the brick structure, the basis of the use of sinking pipe pile, because the pile did not hit the holding layer, the building serious uneven settlement, resulting in walls, beams, part of the beam-column joints and cast-in-place concrete slab Cracked.
Road Repair Equipment - Doan Machinery
Concrete strength, a serious shortage of concrete slab
A four-storey brick and concrete structure office building, completed and delivered in 1988, recently found three or four floor part of the board surface along the supporting wall around the wall cracks, the bottom of the plate to the four sides of the extension of the oblique cracks (see Figure 1 ). The fracture form is consistent with the stress characteristics of the floor, and the strength of the concrete of the three floors and two floors is detected by the bulletin method. OMPa, four layers of two open floor of the concrete strength of the estimated values ??were *. SMPa and *. 7MPa, are less than the standard value of the design strength C18; Drilling measurement The above four open floor of the concrete slab thickness measured between 58-62nun, are less than the design value (80mm). Therefore, it can be determined that the floor cracks are concrete strength, the concrete thickness is seriously insufficient, the use of disasters and accidents, a large commercial center has two basement, during the construction process, due to groundwater buoyancy caused by the basement and superstructure of the floor, Column cracks and floating phenomenon, part of the floor serious cracking. A building center in the construction due to a strong typhoon positive attack, the main building on the west side of a 400 tons of rice tower crane was strong wind down, the main building on the west side of the reinforced concrete frame structure suffered heavy damage, reinforced concrete floor and frame beam column serious cracking, concrete Component damage is serious.
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As we all know, asphalt pavement in the long-term repeated load and the role of natural light, inevitably there will be pit, bag package, net crack, subsidence as the representative of the various diseases. Because sometimes design, selection and construction quality of the wishful, more quickly the frequency of the occurrence of the disease. If these diseases are not repaired in time to restore the basic functions of the road, not only will affect the traffic flow, but also to accelerate the expansion of the disease, greatly improving the cost of repair works. Therefore, the timely repair of asphalt pavement has become one of the increasingly important priorities of highway maintenance units.Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery
Cold and modified asphalt solution repair pit, without heating, to achieve a cold oil, cold materials, cold mix. The car in the operation can be based on the base layer, grass-roots, surface layer of the different requirements of free gradation, mix out to meet the requirements of the base layer, grass and surface materials. The car can use the vehicle to carry the equipment to make the asphalt pavement repair process to complete a one-time. Since the success of research and development, has been in Shanxi and a number of high-grade highway to promote the application, received a good effect. As the main designer of the device, the author will be its main performance, structure and functional characteristics described below. !!"!car.!"# Hydraulic ramming hammer, hydraulic grasping 91 hydraulic pump station for hydraulic ho, bucket to provide hydraulic power. Hydraulic hammer for the use of road cutting machine, from the crushing effect; hydraulic ramming hammer for tamping the material, especially the pit dawning of the solid; hydraulic grab for stone, water stability and the machine to carry the lifting equipment.
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There is no doubt that high-grade roads, especially the highway repair, only the use of the application of multi-functional conservation machinery to complete, which is to ensure the construction quality and improve the efficiency of the only choice, but also to achieve highway management modernization and civilized construction of important guarantee and premise The Multi-functional integrated maintenance vehicles to repair the classification can be divided into hot and cold operations two. With the continuous development of science and technology, cold repair mode of operation with its many advantages increasingly praised by the highway engineering academia. And Shanxi Provincial Highway Bureau Jinzhong Branch and Shanxi Hualong Traffic Technology Co., Ltd. recently developed successfully It is mainly used for forced mixing of asphalt mixes and water stabilizers. For the base layer, the base of the hopper by the (hopper composition, and the surface of the different requirements of the ratio of stone, gravel, cement storage.
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The practical results show that the microwave heating has the characteristics of fast heating speed, uniform heating and large heating depth. By means of microwave heating, the microwave is used to improve the heating and maintenance of the vehicle. The cost of repairing pits is lower than that of traditional heat radiation heating integrated maintenance vehicles, and the measures taken by microwave heating integrated maintenance vehicles to prevent microwave leakage are introduced.
With the increasing mileage of expressway traffic in Fujian Province, the increasing age of the province, the current 11 only traditional radiation heating asphalt pavement repair car has been unable to meet the province's highway asphalt pavement maintenance needs. In order to ensure the smooth development of maintenance tasks, to ensure the safe and smooth flow of the highway, the purchase of new, suitable for the maintenance of the province's asphalt pavement integrated maintenance equipment has become a top priority. From August to November 2010, Fujian Expressway Maintenance Engineering Co., Ltd. introduced a microwave heating asphalt integrated maintenance vehicle in Longyan area conservation company trial, and the relevant performance indicators, the cost of the actual calculation.Road Repair Equipment - Doan Machinery
The Principle and Advantages and Disadvantages of Existing Asphalt Pavement Repair
Fujian Province Highway Maintenance Engineering Co., Ltd. to undertake Fujian Province, 2700 km highway maintenance tasks. Pavement pit repair task is mainly composed of 11 early asphalt pavement integrated maintenance vehicles to complete. The car on the asphalt pavement heating method for the heat radiation heating. The principle of heating: liquid liquefied gas after vaporization in the bottom of the heating wall to fully burn, heat through the refractory bricks blowing to the ground, intermittent heating, layers of penetration. This type of heating is actually a visible light in the pavement, because its conduction and convection accounted for a large proportion of radiation heat is small, easy to make the road was scorched or oxidized. It is not conducive to the recycling of asphalt mixture. The advantages of the thermal radiation heating method are: heating wall heat storage capacity, radiation temperature is high, thus ensuring sufficient radiation energy. Refractory brick work, the temperature reached more than 1000 ℃, the surface of a red, easy ignition, and the temperature in the work area more uniform. The main drawback is that, despite the use of intermittent heating, it is not easy to control the surface temperature of the heated pavement. Because a large number of visible radiation is very concentrated, energy radiation fluctuations, the peak temperature of the road again and again, not easy to balance. Refractory bricks have lower strength, higher cost, continuous high temperature use and easy to damage after vibration, increase the use of cost. Refractory brick replacement professionals and professional tools, maintenance is very convenient.
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