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

CGM340 high fluidity grouting material wholesale price Chaohu Juchao repair grouting material

The foam cement insulation board and the base wall are pasted using the full pasting method. When pasting, an iron trowel is used to evenly scrape a layer of bonding mortar with a thickness of not less than 3mm on each foam cement board. The pasting area should be greater than 95%, and it should be pasted and squeezed onto the base in a timely manner. The joint gap between the boards should not exceed 1mm. At the corner of the wall, the foam cement insulation board should be sized first, and the foam cement board should be cut to make it vertically staggered and connected, while ensuring the verticality of the wall corner. When pasting the external corners and exterior wall corners around the window frame, a vertical reference line should be marked first as the basis for controlling the vertical orientation of the external corners. The foam cement board at the four corners of the door and window openings should be cut into an L shape using a whole foam cement board for paving, and should not be spliced.

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.

CGM340 high fluidity grouting material wholesale price Chaohu Juchao repair grouting material

Granite is a type of tectonic rock formed by the melting of volcanic lava under considerable pressure, which rises to the surface of the earth's crust. The magma does not erupt from the ground, but slowly cools and solidifies underground. It is a deep-seated igneous rock and belongs to magmatic rocks. Granite is an igneous rock, also known as a sexual crystalline plutonic rock, and is the most widely distributed type of rock in igneous rocks. It is composed of feldspar, quartz, and mica, and has a hard and dense texture. Granite is a rock with the longest history of application, the widest range of uses, and a large amount of usage. It is also the most common rock in the earth's crust. Granite is generally light colored, mostly gray, grayish white, light gray, red, flesh red, etc. The chemical composition characteristics are SiO2>65%, Fe2OFeO, MgO generally<2%, CaO<3%.

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.

In a broad sense, anything with texture is called "marble"; Granite is mainly characterized by speckles. Narrowly speaking, marble refers to the stone produced in Dali, Yunnan. In fact, there are not many stones from Dali in various parts of the country nowadays. Both can also be distinguished from geological concepts. Granite is an igneous rock, also known as a sexual crystalline plutonic rock, and is the most widely distributed type of rock in igneous rocks. It is composed of feldspar, quartz, and mica, and has a hard and dense texture. Its main component is silicon dioxide, accounting for about 65% to 75%. Igneous rocks are rocks formed by the condensation and crystallization of open magma or volcanic eruptions. The content of silicon in igneous rocks and the properties and content of feldspar determine the properties of stone.

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Analysis of Quality Acceptance Standards for Air Duct Insulation: Appearance: Smooth surface, no breakage, no bulging, no detachment. The air duct should be straight, with a permissible deviation of 3cm. The verticality should be 2mm/m, with a permissible deviation of 2cm (as specified in GB524322G). Method: Observe and measure the insulation cotton at the flange of the air duct with a ruler. The edge of the aluminum foil tape should be symmetrical and even, and the edge length should be the same. It is not allowed to overlap halfway. The construction unit is communicating with the manufacturer regarding the firmness and wrinkle standards of the adhesive, and the data process control is responsible for surface cleaning For areas that are difficult to clean with wiping, the cleaned parts should be marked (X) to prevent the construction unit from cheating during inspection. Ensure at least 2 towels on each vehicle daily.