Short answer: What are the on site preparations before asphalt concrete paving?

On-site preparation before paving of green concrete. First of all, the floor should be cleaned and swept before it is ready. The materials and tools used, so that they can work hard, and the space to be paved is blocked by things and not allowed to be stepped on.

The preparation work is to level the ground, then tamp the land, and then the work here is done, and then wait for the car to go over and pave it directly.

The on-site preparation work before asphalt concrete paving is actually quite complicated, and the material mixed with soil and asphalt should be evaluated, and then the level calibration should be carried out, and then the direct stall should be pushed.

Short answer: What are the on-site preparations before asphalt concrete paving? Before asphalt concrete paving, the site should do a good job of asphalt concrete isolation, and each silo of asphalt concrete should be allocated before the material can be worked.

The on-site preparation before asphalt concrete paving should first be a concrete mixer truck and a compaction roller.

The pre-site preparation work is mainly to tamp the ground.

The ground is then tested for water seepage at the same time.

The preparation work that should be done on the site before asphalt concrete paving is to sort out all the on-site work, and then pave the site to achieve the desired effect.

Before the asphalt concrete is rolled out, the ground needs to be treated for site preparation. Spread it out in time when the temperature is right.

Short answer: asphalt concrete Shinanpu whole site. What do you prepare? Everything is ready, and the floor is well laid. to get started. The factory can be covered, and all the materials are ready.

The first thing that should be done is to hit the foundation 17 times. Go first. Mix the asphalt well, and then use it harder.

What are the ready-made preparations for Kinder asphalt concrete paving? Clean up the garbage from the road.

1.Do a good job of processing and production of formwork in advance, and the production quantity should be the number of key and fast times the paving capacity of the paver, as well as the corresponding reinforcing fixed rod and steel drill.

2.Measurement lofting: restore the alignment, set a pile every 20m in the straight section, and set a pile every 5 10m in the curved section.

After the review is correct, based on the restored center line, the blind bench pile of the edge line poured on the concrete pavement is released, and the 3-inch long steel nail is used every 10m in the straight line and every 5m in the curve. The elevation measurement of each lofting steel nail position is carried out, and the difference with the design elevation is calculated, and the wire can be erected only after review and confirmation.

3.Wire erection: At a distance of about 2cm from the lofting steel nails, the length of the nailing steel drill (subject to the undisturbed steel nails) is about 45cm, and the depth of penetration is suitable for stability.

Carry out leveling measurements, and mark the design elevation position line of the concrete pavement on the steel drill (white chalk can be used) should be accurate to 2mmThen the design elevation line is tightened with a rope and the bolt is firmly remembered, and the sag can not be produced in the middle, and the steel drill can not be disturbed, and the position should be correct.

4.Template support: according to the direction and height of the wire, the top surface and inner side of the template should be close to the wire, vertical up and down, can not be tilted, to ensure the correct position.

The formwork should be erected firmly to ensure that the formwork will not be displaced, sunk and deformed during the pouring and vibrating process of concrete. The inner surface of the formwork should be evenly coated with release agent, which should not pollute the environment, the reinforcement of the force transmission rod and other construction equipment. When installing the tie rod reinforcement, the spacing and position of the reinforcement should meet the design requirements, and the installation should be firm, so as to ensure that the vertical centerline of the tie rod reinforcement should be parallel to the concrete surface after concrete pouring.

5.Laying tracks: The track can be selected with 12 type I steel or 12 type channel steel, generally only need to be equipped with 4 standard I beam length, forward reversal use, and should be fixed on the small sleeper of the I beam or channel steel, sleeper spacing is lm

The track should be parallel to the center line, the top surface of the track and the top surface of the template should be a fixed difference, and the distance between the track and the template should be kept at a constant constant. The track should be smooth and straight, and the joint should be smooth and not abrupt.

6.Paver in place and commissioning: Before paving and polishing the paving every day, the paver should be adjusted so that the paver is debugged to the same inclination as the road surface cross slope.

Adjust the concrete scraper to the design elevation of the top surface of the formwork, and check whether the vibrating device is in good condition and whether the operation of other devices is normal.

1) Ensure the paving temperature of the mixed Jingji blocking material;

2) The paving mixture should be uniform and dense on the surface, without segregation;

3) The surface of the paving layer should be smooth, and there should be no paving speed change, uneven paving operation or abnormal aggregate grading;

4) The thickness of the paving layer and the crown meet the requirements;

5) The seam is normal and there is no obvious unevenness.

When taking asphalt mixture at the road construction site, it should be paved after paving and before rolling, where on both sides of the paving width.

Hello dear! We'll be happy to answer for you. When taking asphalt mixture at the road construction site, it should be paved before rolling, what is the position on both sides of the paving width to let Kaizhi answer:

Hello Nianli, take samples at the road construction site: when sampling at the road construction site, samples should be taken at 1 2 1 3 positions on both sides of the paving width before paving before the paving is not crushed, and all the paving layers are shoveled out with a shovel, but other layers under the paving layer are not shoveled in.

Answer]: C analysis] The paving of the mixture of cement concrete pavement is selected according to the width of the pavement 1 2 sets with automatic adjustment of paving thickness and leveling device, which can be heated by vibrating ironing the remaining plate, and the high-density asphalt concrete paver with good operation is selected for paving macro early rolling. The lower and middle surface layers are constructed by the wiring method, and the surface layer is constructed by the balance beam method.

Therefore, the correct option for this question is "C Balanced Beam Method".

Summary. The difficulty of road construction is the treatment of the junction of the old and new roads, and the road construction of this project focuses on this, because the road junction is not easy to tamp, and the backfill is not easy to reach the compactness required by the design, for this reason, the backfill with natural graded sand and gravel is planned to be backfilled with the junction. It can ensure the quality of backfill and the overall quality of the road.

Earthwork 1, table clearance and demolition project The demolition project includes the demolition of the original asphalt concrete pavement, the demolition of the original pavement base, and the demolition of the original concrete.

Please describe your problem more specifically and explain it to the teacher in detail, so that the teacher can better help you.

What about the back. That's not all.

The difficulty of road construction is the treatment of the new and old road junction bureau, the road construction of this project is focused on this, because the road junction is not easy to tamp, and the backfill is not easy to achieve the compactness of the design requirements, for this reason, the backfill with natural graded sand and gravel is planned to be backfilled with the junction. It can ensure the quality of backfill and ensure the overall quality of the road. Earthwork 1, table clearance and demolition project The demolition project includes the demolition of the original asphalt concrete pavement, the demolition of the original pavement base file and the demolition of the original concrete.

Answer]: C analysis] The paving of the mixture of cement concrete pavement is selected according to the width of the pavement 1 2 sets with automatic adjustment of paving thickness and leveling device, which can be heated vibrating screed, and the high-density asphalt concrete paving machine with good transportation is selected for paving. The lower and middle surface layers are constructed by the wiring method, and the surface layer is constructed by the balance beam method.

Therefore, the correct option for this question is "C Balanced Beam Method". Macro early roll.

Answer]: C cement concrete pavement mixture paving, according to the width of the pavement selection of 1 2 sets of automatic adjustment of the thickness of the pavement and leveling device, can be heated vibrating screed, and the selection of good running high-density asphalt concrete paver for paving. The lower and middle surface layers are constructed by the alignment method, and the first skin surface layer is constructed by the balance beam method.

Therefore, the positive option for this question is "C Balanced Beam Method".

Answer]: A This question examines the paving method of ordinary hot-mix asphalt concrete mixture. The paving method of the mixture should be selected according to the different structural layers.

The lower and middle surface layers of the pavement are constructed by the routing method, and the surface layer is constructed by the balance beam method. Therefore, the correct option for this question is "a balanced beam law filial piety tour" quietly.