Can matrix asphalt be used for road grout Is it better to use asphalt pavement grout glue

First of all, matrix asphalt is a hydrophobic material, almost insoluble in water, and its own structure is dense, it has good adhesion to the surface of mineral materials, and can be tightly adhered to the surface of mineral materials. At the same time, it has a certain plasticity and can adapt to the deformation of materials or components. Therefore, matrix asphalt has good waterproofness, so it is widely used as moisture-proof, waterproof and impermeable materials for construction projects.

However, it is not suitable for road grouting, which will crack in winter and flow in high temperatures in summer. Therefore, asphalt pavement grout adhesive should be used to repair road cracks, especially in temperate and cold zones. In addition to waterproof sealing, Jiage asphalt pavement joint filling adhesive also has high and low temperature resistance, and is a common material for road crack repair.

Asphalt pavement joint glue is divided into hot joint glue and cold repair joint glue, generally hot asphalt joint glue needs to be slotted, heated and repaired asphalt pavement, the requirements for construction personnel are relatively high, and professional heating equipment is also required, and the desirable point is that the cost of repairing pavement cracks in a large area is relatively low. First of all, not only asphalt pavement cracks can be repaired, cement concrete pavement can also be repaired, and expansion joints, settlement joints, cutting joints and newly repaired cement pavement construction joints such as squares, airport runways, roofs, basements and other disease cracks (joints) can be used, the performance is very good, weather resistance is -50 to 80 degrees Celsius, high temperature does not flow, low temperature does not brittle, has good elasticity and rebound rate, The sealing and waterproof performance is also very good, I hope mine is helpful to you.

Summary. Depending on the size of the gap, small gaps can be made of ointment, polyvinyl chloride, coal tar and other materials, while asphalt is used for larger cracks. However, the performance and service life of these two can no longer meet the needs.

It is recommended to use the upgraded version of asphalt grout adhesive, which is a high polymer, which is very good in terms of road usability and high and low temperature performance.

Depending on the size of the gap, small gaps can be made of ointment, polyvinyl chloride, coal tar and other materials, while asphalt is used for larger cracks. However, the performance and service life of these two can no longer meet the needs. It is recommended to use the upgraded version of asphalt grout adhesive, which is a high polymer, which is very good in terms of road usability and high and low temperature performance.

Performance characteristics: 1. Good high-temperature stability and low-temperature brittleness resistance. 2. Extremely strong adhesion to ensure good adhesion to the contact surface.

3. The applicable temperature range is -40 degrees Celsius and 80 degrees Celsius. 4. Good elasticity, large tensile amount, can withstand large displacement. 5. Compared with the traditional grout material, it is convenient and durable, environmentally friendly and energy-saving, which can effectively extend the curing cycle and reduce the number of curing times.

The main applications of road sealant: 1. Maintenance and sealing of cracks and cracks in asphalt road pavement. 2. Treatment of cracks in the base layer in front of the road pavement cover.

3. The transition between the cement concrete and the asphalt pavement at both ends of the bridge and culvert. 4. Bridge expansion joints. 5. Treatment of cement concrete pavement joints such as airport roads.

Road potting compound is a kind of asphalt road pavement crack treatment material with super sealing performance, but also has the advantages of good compatibility, large elasticity, strong adhesion, anti-aging, etc., the product is composed of a variety of rubber and plastic components, is a hot construction high elasticity sealing material, can also be applied to cement concrete road pavement crack repair and joint treatment.

The use of asphalt pavement grout glue grout slotting should pay attention to:

Determine whether it needs to be grooved or not.

Determine the width and depth of the grooving.

Choose the right grooving equipment.

Adjust the width and depth of the blade grooving. After grooving, treat the debris in the tank to ensure that it is clean and dry.

When asphalt pavement grout glue slotting and filling, first of all, check the cracks of the pavement to determine whether it needs to be slotted, if the crack width is more than 1 cm, there is no need to slot, if the general crack can be used to paste the seam treatment, it is recommended to use the seam belt treatment, which can reduce the damage caused by the slotting to the road surface; Secondly, determine the width and depth of the slotting, the general slotting width on both sides of the crack is about 1 cm, and the depth is about centimeter (it also depends on the degree of the crack to choose the width and depth of the slotting). Then it is necessary to choose a professional road cutting machine, select appropriate blades, and adjust the width and depth of slotting. After slotting, the inside and both sides of the crack should be cleaned and baked to ensure that the crack is clean and dry, and the asphalt pavement grout can be used for grouting.

Why should asphalt be poured after the cement pavement is cut, and what role does asphalt play?

Kiss! Hello, happy to answer your <>

The reasons why asphalt should be poured after the cement pavement is cut are as follows: waterproofing, preventing sand and gravel embedding, and preventing thermal expansion and cold contraction from damaging the layout. Therefore, after the pavement maintenance period, joint filling should be carried out.

Bitumen is a black-brown complex mixed substance composed of hydrocarbons of different molecular weights and their non-metallic derivatives, which is a kind of high-viscosity organic liquid, which is liquid and has a black surface and is soluble in carbon disulfide. Including natural asphalt, petroleum asphalt, shale asphalt and coal tar asphalt and other four types. The main components are asphaltene and resin, which is an organic cementitious material that is waterproof, moisture-proof and anti-corrosion.

It is used in coatings, plastics, rubber and other industries, as well as paving roads. I hope mine can help you <>

Do you have any other questions?

At present, the commonly used asphalt pavement grout process is divided into two types: non-slotted grout and slotted grouting. Non-slotted grouting is divided into hot operation method and cold operation method: hot operation method generally uses ordinary hot asphalt or modified hot asphalt for asphalt pavement crack filling, when ordinary hot asphalt is used, ordinary hot asphalt is easy to appear oily and carried away by vehicles at high temperature, and the asphalt will become brittle and easy to fall off at low temperature; The use of modified hot asphalt due to the viscosity of the modified asphalt is large, the flow permeability is poor, and the asphalt poured into the pavement cracks is very small, so when the pavement cracks expand at low temperature, it is easy to crack, and the repair service life is short.

The cold operation method is to use liquid asphalt (emulsification), polymer modification, liquid asphalt, etc. for potting. Due to the addition of solvent to the polymer-modified liquid asphalt, the low-temperature fluidity and permeability of the asphalt are improved, but the high-temperature stability and elastic recovery performance are reduced. In summer, it is easy to overflow and be taken away by vehicles to pollute the road surface, and it is easy to pull away when it is low temperature in winter.

Slotted grout is to use asphalt pavement grout glue to fill and seal the slotted pavement cracks, and the process method is generally to cut the pavement cracks through mechanical compulsion, so that the pavement cracks are widened and deepened, and then the pavement cracks are potted with grout glue. Many cracks in the initial stage do not need to use the slotting process to deal with (such as the cracks that appear on the newly repaired pavement, and the crack width is small, irregular cracks, etc.), most of the cracks are irregular cracks, and there are small cracks and capillary cracks around the main cracks, this method is the secondary damage to the irregular cracks and small cracks and capillary cracks of the pavement due to the use of machinery to cut the pavement cracks. One year later, new pavement cracks extend at both ends of the pavement cracks, and with the aging of the grout glue and the water ingress of the small cracks around the cracks, the original pavement cracks become two or more pavement cracks, which are easy to cause a variety of pavement diseases such as water seepage, slurry, edge gnawing (the crack width after slotting is generally the depth and the bearing capacity of the pavement is generally reduced to the beginning), potholes, etc.

Due to the increase in the width and depth of pavement cracks after slotting, the use temperature of potting compound is higher, generally about 180), and the material used also increases, which is not conducive to environmental protection and consumes a lot of energy.

The above is a personal opinion only.

I am more in favor of the maintenance method of slotting potting, slotting has damage to the road surface, although the advantages outweigh the disadvantages. However, in order to allow customers to consume more sealant, some manufacturers deliberately make the notch of the grooving machine blade design wider and gnaw the edge. The standard new blade should be opened with a notch of 12-13 mm after being installed.

Extra-wide is not eligible. Some people don't know the problem, and use the non-standard blade to open the notch wider, mistakenly thinking that the slotting potting has great damage to the road surface, and the potting is not slotted directly, once a year, resulting in high maintenance costs.

It is divided into imported and domestic, and then divided according to the temperature.

Come to Xuchang Jinote to see, very detailed.

The joints cut by cement pavement are called "shrinkage joints", which are used to adapt to the shrinkage of the pavement surface layer and prevent irregular cracks caused by shrinkage. Due to the shrinkage stress concentration caused by temperature in the incision, it will crack deeply, and the rainwater will seep down until it invades the roadbed and is damaged, so it is necessary to pour asphalt adhesive (it is specially configured with the specified high and low temperature resistance, not simple asphalt). The distance between the "shrinkage seams" is two or three times smaller than that of the "account seams".

The "account joint" is the expansion joint that retains the thickness of the entire concrete layer, and the depth of the cut "shrinkage joint" is only less than 10mm.

"Tent joint" and "shrinkage joint" are designed for the expansion and contraction of the road surface due to temperature changes, not for the lateral tensile stress caused by the wheel pressure of the vehicle.

When building anti-houses, asphalt is often used as a waterproof layer, and when building cold storage, asphalt and sawdust are often mixed to make a thermal insulation layer; Asphalt coating railway sleepers can prevent corrosion; Underground pipes coated with asphalt can prevent rust; The reservoir dam is paved with a layer of asphalt to prevent seepage and leakage; The injection of asphalt at the joint of the bridge slab surface can play the role of thermal expansion and cold contraction. Asphalt can also be mixed with other materials to make asphalt paint, asphalt linoleum, asphalt rubber, asphalt coating, asphalt insulation adhesive and other products. With the development of modern science and technology, the use of petroleum bitumen is also more extensive.

In terms of building materials, asphalt and soil are mixed to make asphalt bricks and asphalt boards with high strength, low water absorption, beautiful and durable, which is a new type of building material. In agriculture, asphalt and fertilizer are mixed and sprayed on the soil surface to keep warm, reduce water evaporation, and prevent fertilizer loss. In the electrical industry, asphalt can be used as insulation materials and cable protective layers, especially underground cables and underwater cables.

In addition, if asphalt is further processed, petroleum coke, which is necessary for the steelmaking industry, can also be used to produce carbon fiber, which is necessary for the manufacture of spaceships.

Grout is a common pavement maintenance measure that can repair small cracks and water seepage and pollution problems on the pavement. In the process of caulking, we usually use asphalt materials.

Bitumen is a dark brown semi-solid or solid substance that is resistant to deficiency by separating and refining petroleum, coal tar, natural gas and other substances. Due to its excellent adhesion, elasticity and durability, it is widely used in road construction, maintenance and maintenance, including detailing work such as grouting. In asphalt, the commonly used types are petroleum asphalt, modified asphalt and asphalt emulsion, etc., among which the choice of which asphalt type of grouting depends on the material of the road and factors such as the environment.

Grout is an important measure in pavement maintenance work, improving the bearing capacity and durability of the road by filling in the small cracks, joints and potholes in the pavement. In this process, the use of asphalt as a filler material is very effective to take full advantage of the excellent adhesion and elasticity of asphalt, fix the road surface material and prevent leakage, water erosion, ignition or other damage in these areas. In addition, asphalt materials can be well adapted to the environment and materials of different types of roads, such as stone asphalt is suitable for highways, urban roads and other roads with large traffic flow, while modified asphalt is suitable for roads with drastic temperature changes or small traffic flow.

In conclusion, the use of asphalt materials in joint filling is an effective method of pavement maintenance. Different types of asphalt materials need to be selected for different pavement environments and materials, and the use of suitable asphalt materials can ensure the quality of road maintenance and maintenance effects. <>