Concrete floor shot blasting machine represent specialized machinery crafted for the preparation of concrete surfaces. They employ abrasive materials, such as high-velocity propelled steel shot or grit, to cleanse, profile, and etch the concrete. This procedure is pivotal in attaining ideal adhesion for coatings or overlays.
What Is A Concrete Floor Shot Blasting Machine?
Concrete floor shot blasting machine are essential in surface preparation, enhancing floor durability in various settings, including industrial spaces, commercial establishments, and historical restoration projects. These machines, proven in transforming concrete surfaces, will be explored in terms of operational mechanisms, applications, safety protocols, and future trends.
I. Introduction Concrete Floor Shot Blasting Machine
A. Definition of Concrete Floor Shot Blasting Machine
Concrete floor shot blasting machine represent specialized machinery crafted for the preparation of concrete surfaces. They employ abrasive materials, such as high-velocity propelled steel shot or grit, to cleanse, profile, and etch the concrete. This procedure is pivotal in attaining ideal adhesion for coatings or overlays.
B. Importance in Surface Preparation
Effective surface preparation is a cornerstone for the success of any flooring project. Shot blasting not only removes contaminants and imperfections but also creates a profile that enhances the bonding of subsequent materials. This method has gained popularity for its efficiency and versatility in various applications.
II. Advantages Concrete Floor Shot Blasting Machine
The concrete floor shot blasting machine boasts a myriad of benefits, positioning it as the favored option for surface preparation.
A. Speed and Efficiency
A notable advantage lies in the rapid operation of shot blasting, significantly curtailing project timelines. This efficiency renders it a suitable choice for both expansive industrial endeavors and more compact residential refurbishments.
B. Environmentally Conscious Solutions
In contrast to conventional methods involving chemical stripping, shot blasting presents an eco-friendly alternative. By eliminating the necessity for harsh chemicals, it promotes a greener and more sustainable approach to surface preparation.
C. Cost-Effectiveness
Despite delivering impeccable results, concrete floor shot blasting machine surprisingly remains cost-effective. It diminishes labor expenses and alleviates the need for extensive surface repairs, emerging as a economical preference for property owners.
III. Applications of Concrete Floor Shot Blasting Machine
1.Surface treatment of shot blasting machine for concrete bridge deck.
The Closed circuit shot blasting process can clean up and remove the floating slurry and impurities on the concrete surface at one time. The most important thing is that the concrete surface is roughened at the same time to make the surface uniform and rough, which greatly improves the bonding strength of the waterproof layer and the concrete base layer. And in this process, the shot blasting process can fully expose the concrete cracks and other diseases, so that remedial measures can be taken in advance. Can the road shot blasting machine be constructed on rainy days? No, because steel shots cannot be recovered on rainy days, and the steel shots may become lumps or damage the equipment.
The concrete bridge deck is treated by shot blasting technology:
Clean, tidy and rough surface without additional cleaning;
Will not damage the base layer or cause loosening of aggregates in the original base layer;
Good and uniform surface roughness;
Completely and evenly remove surface scum and sand layer;
Meet the requirement of a certain explicit rate;
Greatly improve the bonding strength of the waterproof layer;
Suitable for the paving of various waterproof coatings, coiled materials, and modified emulsified asphalt;
At the same time, the shot blasting technology has high work efficiency when processing the concrete bridge deck without causing environmental pollution to the surrounding environment, which is in line with the current national policy of energy saving, consumption reduction and environmental protection.
Through comparison, it can be considered that a medium, uniform, flat and clean surface of the bridge deck is the best interface to improve the bonding strength and shear resistance of the bonding material to the bridge deck. Therefore, the shot blasting technology is relative to my country’s treatment of concrete bridge decks. Traditional technology is highly advanced and economical.
The pavement portable shot blasting machine can solve the defects of the concrete surface treatment. It can clean up the floating slurry and impurities on the concrete surface at one time, and can roughen the surface of the concrete to make the surface uniform and rough, which greatly improves the waterproofing The adhesive strength of the layer and the concrete base layer can better combine the waterproof layer and the bridge deck. At the same time, it can fully show the cracks of the concrete and play a preventive role.
2.Maintenance of the road tunnel
The pavement in the tunnel is generally made of cement concrete due to considerations of waterproofing and material fire and oil resistance. But at the same time, this also puts forward higher requirements for the anti-skid performance of the long tunnel pavement. The shot blasting process is a simple construction, small equipment investment, significant effect and environmental protection. In recent years, there have been more and more projects using closed circuit media shot blasting to treat bridge decks and tunnels. In the waterproof paving of concrete bridge decks, shot blasting is already required by European and American technical specifications. Shot blasting is also used to treat concrete pavements in China. Perform maintenance.
3.Maintenance of asphalt pavement
Shot blasting equipment is widely used to improve the roughness and friction coefficient of asphalt pavement, thereby improving the adhesion of the road surface and ensuring driving safety. At the same time, it can also remove the attachments (such as fuel, engine oil, etc.) on the asphalt pavement. It is mainly used in the following aspects:
(1) During the construction of asphalt concrete overlay, the use of shot blasting technology for road surface pretreatment can ensure that the road surface is clean, and at the same time increase the surface roughness, strengthen the adhesion between the overlay layer and the original road surface, and the durability of the structure is greatly improved. Increase; the first shot blasting treatment of the slurry seal and the use of resin material to cover can greatly improve the bonding strength of the resin cover and the original base layer, so that the quality of the slurry seal is improved and the service life of the road surface is prolonged.
(2) The shot blasting process can be directly used on asphalt pavements, for example, roughening the surface of the turning section to improve the anti-skid performance.
(3) It can directly remove the oil on the surface of the asphalt pavement and improve the anti-skid performance caused by the oil on the road.
(4) Shot blasting can also be applied to the removal of marking lines. The asphalt surface treated by the shot blasting process not only cleans up various surface attachments, but also increases the roughness of the asphalt surface and improves the performance of the asphalt pavement. Moreover, the construction of the equipment is simple, convenient, and flexible.
4.Anti-corrosion coating of steel bridge deck
The application of shot blasting technology in the anti-corrosion coating of steel bridges has been fully affirmed in our country. Most of the bridges under construction and already built choose to use the shot blasting process for surface cleaning and roughness treatment before anti-corrosion primer or other spraying. The use of shot blasting to treat steel bridge decks can meet the requirements of SA2.5/SA3 steel plate cleanliness, and can control the roughness to meet coating requirements, and the entire process is dust-free and easy to move.
Application of pavement movable shot blasting machine in steel bridge deck paving
Before paving the waterproof adhesive layer, the surface of the steel bridge deck needs to be sandblasted and derusted with a special shot blasting machine. First use a wire brush to remove the loose material on the surface of the steel plate, and then use a spatula to scrape off the thicker grease attached to the surface of the steel plate, and then clean the local oil-contaminated surface with an alkaline cleaning agent and rinse it with clean water.
The construction needs to be carried out under clear weather, no fog, and no rain, and the relative humidity of the air should not be greater than 90%; during the construction process, the site wind speed and surface temperature of the steel bridge need to be tested.
Shot blasting quality inspection adopts two methods: visual inspection and instrument inspection. The visual inspection is required to reach level 2.5 or above. The instrument inspection is to measure the roughness through the thickness method, and the thickness change is controlled within 60-120um.
Personnel in the shot blasting construction work surface need to wear special shoe covers to prevent surface pollution after shot blasting. After shot blasting, the steel balls are recovered in time, and the work surface after shot blasting is blown clean with a blower.
5.Municipal roads and paved roads
All kinds of road paving in the city can be cleaned by movable shot blasting machine to remove the markings on the road surface. For busy intersections, the road surface can be roughened to improve the roughness and friction coefficient of the road surface.