Winter construction
When the daily average temperature is below 5 ° C, winter construction should be carried out and meet the following requirements:
1. Before grouting, measures should be taken to preheat the foundation surface, keep its temperature above 100 ° C, and remove accumulated water.
Before being frozen, the compressive strength of cement-based grouting materials shall not be less than 5MPa.
Early strength grouting material manufacturer Xincai high-strength non shrinkage grouting material
Q: What is the difference between PVC plastic buckle plate and aluminum alloy buckle plate? What should be noted when using? Answer: PVC plastic buckle plates have strong water resistance and scrub resistance, and are relatively low-cost. Aluminum alloy buckle plates have better texture and decorative feel. PVC plastic buckle board is made of PVC as raw material, which is lightweight, easy to install, waterproof, and insect proof. The surface color patterns also vary greatly, and it is resistant to pollution and easy to clean. It has good sound insulation and thermal insulation properties, especially with the addition of flame retardant materials in the new process, making it more safe to use. The disadvantage is that compared with metal ceiling panels, the service life is relatively short. When selecting PVC ceiling profiles, in addition to requesting quality inspection reports and product testing certificates from distributors, the appearance quality can be visually inspected. The surface should be flat and smooth, without cracks or bumps, and can be disassembled and assembled freely. The surface should have a glossy finish without scratches, and the sound of tapping the surface by hand should be crisp.
Construction in high temperature climate environment
If the temperature of the grouting site is greater than 35 ° C, construction should be postponed according to the high temperature climate and meet the following requirements:
Measures should be taken 24 hours before grouting to prevent direct or other thermal radiation from the grouting area.
2. Take appropriate cooling measures, and the temperature of the concrete foundation and equipment base plate in contact with the cement-based grouting material should not exceed 35 ° C.
3. The injection temperature of the slurry should not exceed 30 ° C.
4. Moisturizing and curing measures should be taken promptly after grouting.
Early strength grouting material manufacturer Xincai high-strength non shrinkage grouting material
There are two main reasons for the renovation of roadside stones and other stone materials, namely, due to errors in the processing or installation of construction techniques, or improper mixing of mortar, cement, water, and cement during the laying process, inadequate protection of the finished product, resulting in stone cutting, black joints, surface scratches, construction pollution, hollowing, etc., which cannot achieve the decorative effect and aesthetic requirements of road paving that the stone materials should have. Therefore, it is necessary to update the roadside stones and other stone materials. The second reason is that after using roadside stones and other stone materials for several years, the surface of the stone may become powdery, scratched, damaged, dull, and other phenomena due to wind, sun, and rain erosion. If the stone does not pay attention to protection, water spots, white spots, and other stone diseases may occur, which require overall renovation treatment to achieve the decorative effect that the stone should have.
The maintenance free construction conditions are as follows
When the construction temperature is above 5 ℃ and below 35 ℃, there is no need for maintenance after foundation grouting. If the temperature exceeds the range, the grouting material construction and maintenance methods should be followed for maintenance.
According to the current level of technology, the utilization of crushed stone waste is estimated to exceed 5% of natural stone waste. During the mining and processing process, a large amount of non-standard rough stones and crushed stones will be generated. If these waste materials can be scientifically and reasonably reused, it can not only increase the utilization rate of natural stone materials and improve economic benefits, but also reduce the pressure of processing crushed stone waste, turning waste into treasure and harm into profit. The large amount of non-standard rough stones generated during the processing of stone mosaic and natural stone mosaic are often cut into small-sized stones with different shapes. As an important component of mosaic stone and stone mosaic, small tiles of different colors are bonded together to form large boards with different shapes.
