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

How many tons of Qibin grouting material per cubic meter? Installation of C60 equipment for Qibin grouting material

It is the most widely distributed type of basic intrusive rock, with mineral and chemical composition characteristics as follows: SiO2 content of 45% to 52%, K2O+Na2O average of 3.6% ±; The content of iron and magnesium minerals is 4% to 9%. The main mineral components are basic plagioclase and clinopyroxene, with minor minerals including olivine, clinopyroxene, brown amphibole, biotite, and some feldspar and quartz containing small amounts of potassium. The content of dark minerals and light minerals is almost equal, with the former slightly higher, resulting in a dark black color with a color ratio of generally 35% to 7%. The rock has a medium to coarse-grained structure, and typical gabbro has a gabbro structure. Gabbro has a bulk density of 2.8-3.1g/cm3, a small porosity, and a compressive strength of generally 2-28MPa. Coarse grained materials have lower compressive strength and high durability. The structure is uniform and sometimes has beautiful patterns. After polishing, it is highly decorative and is commonly used as decorative stone.

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 Qibin grouting material per cubic meter? Installation of C60 equipment for Qibin grouting material

Stone curtain walls are usually composed of stone support structures (aluminum beams, columns, steel structures, glass ribs, etc.), which do not bear the load and function of the main structure as building envelope structures. The benefits of using stone curtain wall decoration are: 1. High safety of dry hanging: Stone curtain walls are generally installed by dry hanging because dry hanging is slightly more expensive than wet hanging, but it has some advantages. Dry hanging has high safety and reliability, and is not easy to fall, so dry hanging is used on higher walls. Wet pasting on exterior walls can easily cause flooding, affecting the appearance of the curtain wall. The anti freezing and thawing performance of wet patches is also relatively poor, and they are prone to problems in frozen areas. Natural material: Bright and crystal clear, hard and permanent, noble and elegant.

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.

Natural panel: Stone is extracted from natural stone, and before treatment, the surface presents a very natural uneven effect, with a height difference of 3-6cm. If this type of stone panel is laid on the ground, people will accidentally trip over it, and walking on it is not very comfortable. This batch of boards is not suitable for laying on the ground, but can be used for applications such as flower troughs and stair steps. In addition to the basic methods mentioned above, there are also some special processing methods that are generated according to the design intention, such as locally burning hair on polished stone to create a smooth surface connection effect, drilling holes in stone to produce a special effect similar to perforated aluminum plates that are both transparent and non transparent, and using rolling processing to give the stone an old-fashioned appearance.

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When the wall length and floor height are large and there are door openings, the setting of structural columns should first ensure that both sides of the opening are protected to avoid shrinkage cracks at the corners of the opening. When there is no steel reinforcement left in the main structure or when there is a positional deviation, planting reinforcement must be used. Due to the susceptibility to air humidity and deformation differences with the frame structure, it is advisable to stretch the tie bars on both sides of the wall to improve crack resistance. Strictly follow the operating procedures for construction, ensuring the strength of the mortar and the fullness of the mortar joints. After the masonry is completed, it is necessary to insist on watering and curing to reduce the drying shrinkage of the mortar. In summary, there are many reasons for the cracking of various lightweight brick walls. Only by strictly implementing relevant masonry specifications, checking at all levels from production, design, and construction, taking effective control measures, and carefully constructing for masonry cracking, can the quality of cracking of new block walls be eliminated.