Precautions for using high-strength road repair materials in highway pavement repair

How many tons of high-strength wear-resistant non shrinkage grouting material per cubic meter? Binzhou Zouping sleeve grouting material does not necessarily require the use of pipes with high allowable stress. In actual use, pipes with lower allowable design stress may be selected if the service life is less than 5 years, the operating temperature is lower, or the working pressure is lower. The key is still effective quality control of various types of pipes. According to industry insiders in the plastic industry, the quality of polybutene pipes and random copolymer polypropylene pipes is mainly controlled by the composition and quality of the raw materials. The cross-linking process of cross-linked polymer pipes and cross-linked aluminum-plastic composite pipes is crucial for quality control, in addition to the composition and quality of raw materials. It is precisely this important link in the cross-linking process that causes many of these types of pipes to lose control of their quality. Polybutene pipes and random copolymer polypropylene pipes are renewable raw materials that are more environmentally friendly.

When high-strength road repair materials are applied to road surface repair, a lot of things need to be mixed in order to achieve strength. Although high-strength road repair materials have high strength, they are relatively brittle overall. In this case, it is recommended to add steel fiber high-strength road repair materials during the mixing process, which can produce buffering under huge pressure.  

Secondly, it is necessary to choose high-strength road repair materials that solidify quickly and reach strength within 2 hours, because during road repair, it is necessary to open to traffic in a short period of time.

Then, when selecting steel fibers, it is important to pay attention to the proportion of addition, which depends on different situations, such as high-strength road repair materials and steel

Please refer to the guidance of technical personnel from the grouting material manufacturer for the proportion of fibers.

How many tons of high-strength wear-resistant non shrinkage grouting material per cubic meter? Binzhou Zouping sleeve grouting material

The rough surface is the micro convex and concave surface of the stone, while micro scratches are the traces left during the stone processing, especially high hardness polishing powder that is higher than the hardness of the stone is prone to leaving micro scratches on the surface of the stone. Micro cracks may be native, which is related to the quality of the stone; It may also be epigenetic, that is, generated during the processing, because stone is a hard and brittle material after all. Micro depressions (pits) may be primary or secondary, caused by the peeling of grains during stone processing. In order to reduce diffuse reflection of light and improve the glossiness of stone, the usual practice is to apply a layer of covering material (film) on the surface of the stone.

Steel fibers need to be added during the mixing process to ensure even mixing.

Cleaning the road surface:

1. The road surface needs to be cleaned thoroughly and there should be no debris

2. Need to carve out a certain height for grouting

3. Need maintenance, watering and moisturizing the road surface

4. After the road repair, it will be open to traffic in about 2 hours.

When cleaning with adhesive oil, the temperature should be kept above 2 degrees Celsius. The higher the temperature, the faster the penetration rate of the adhesive oil and degreasing material will increase. In this way, the adhesive oil component in the stone can quickly react with the degreasing material and be carried out of the stone. If the temperature is too low, both the adhesive oil and the degreasing material are difficult to penetrate, the reaction slows down, and the effect deteriorates. It is generally not recommended to clean when the temperature is below 15 degrees Celsius. *Tip: When dealing with adhesive oil pollution on walls, due to gravity, the degreasing material will seep downwards. Therefore, when applying, remove the oil stains and also apply degreasing material 2-3cm above the oil stains. This can absorb more and achieve better results.

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Requirements for the flatness of the base wall surface: horizontal error of "5mm", vertical error of "2mm" (checked with a 2m ruler). From the outdoor floor above the water level to a height of 2.4m or the first floor of the wall, a reinforced structure should be used, that is, a layer of reinforced mesh cloth should be laid on the surface of the standard grid, and the standard grid cloth should be folded and folded. When other parts of the wall (such as external wall corners, external corners, doors and windows, openings, deformation joints, etc.) have special requirements for impact resistance, they also need to be treated as reinforced structures. In areas where the wall structure itself has expansion joints, settlement joints, and seismic resistance, as well as in areas where the base wall material changes and where the wall structure may experience significant displacement, deformation joints for external insulation structures must be installed.