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

RG grouting material quotation: grouting material for secondary grouting support in Guannan

After the quality inspection of the waterproof layer of the roll material is qualified, it can be used as a protective layer. The protective layer is made of C2 fine aggregate concrete with a thickness of 5mm. The waterproof roll material layer must not be damaged when pouring the fine aggregate concrete. The perimeter of the basement is 2: 8 gray soil waterproof, with a circle around the exterior wall of the basement, a 4mm thick polystyrene board protective layer outside the EPDM rubber waterproof layer, 1 meter wide and 6.6 meters high. The 2:8 gray soil is backfilled and compacted, and the soil must be good loess. The ash must be matured and sieved, and the soil particle size should not exceed 1.5 cm. The ash particle size should not exceed 0.5 cm. The soil and ash should be mixed evenly, backfilled and compacted layer by layer, and the compaction coefficient should be greater than. 95 coefficient. Lime soil should first undergo compaction test report, and the soil moisture content should be close to the moisture content, with a control range of 2.

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.

RG grouting material quotation: grouting material for secondary grouting support in Guannan

Hang vertically, set the square to find the rules, snap the thickness control line, and use expanded vitrified microsphere insulation mortar as the standard thickness reinforcement according to the design requirements. Mixing: The expanded vitrified microsphere exterior wall insulation mortar and water must be mixed in a weight ratio of 1:1 (1-1.1). First, put the water into the mixing container, and then put the insulation mortar into the mixing container for use. Apply wall painting on the material, with a thickness of within 2mm per coat and a second coat interval of at least 24 hours. After the insulation layer is cured and dried (usually within 48 hours), polymer anti cracking mortar can be applied, and the first layer should be covered with double-layer mesh cloth. The wire mesh cloth should be pre loaded according to the vertical dimensions between floors, and the edges of the mesh cloth should be cut off. Apply polymer anti cracking mortar with a thickness of about 3-4mm, and immediately use an iron trowel on the other side after applying a certain width. Dry laying is strictly prohibited.

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.

Bush hammer lychee surface is made by striking a stone surface with a hammer shaped like lychee skin, resulting in a rough surface resembling lychee skin on the stone surface. It is commonly seen on the surface of carvings or square stones. It is divided into two types: machine made lychee flour and handmade lychee flour. Generally speaking, handmade lychee flour is finer than machine made lychee flour, but it is more labor-intensive and time-consuming. The density of dots on lychee noodles can be adjusted according to different design effects, using machines or manual methods to achieve a surface treatment effect similar to that of lychee. Chisele longan noodles are a rough surface formed by interlocking a straight hammer on the surface of stone, resembling the appearance of dragon eyelids. It is one of the most common methods for surface treatment of granite carvings, and like lychee noodles, it is also divided into two types: machine and manual.

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Stone has always been known for its strength and durability, but it is not "non-toxic" and often requires maintenance. Generally speaking, the cleaning methods for stone can be divided into two categories: physical cleaning and chemical cleaning. Physical cleaning can be divided into mechanical, hydraulic, water vapor, ultrasonic, and laser cleaning, etc; Chemical cleaning can be divided into surfactants, chemical solvents, chelating reactions, and biochemical cleaning. Due to the fact that most pollutants in stone reside in the micropores of the stone, physical cleaning is either difficult to reach or too costly. Therefore, chemical cleaning is becoming the main method of stone cleaning at present. Surfactants are a commonly used method for cleaning dirt on the surface of stone floors such as terrazzo and marble. There are two types of surfactants: ionic and non-ionic.