News - Page 6

Influence of Low Temperature Conditions on Concrete Performance

2024-09-09

I. The influence of low temperature conditions on the early performance of concrete It is proved by experiments that the lower the temperature of concrete is, the longer the initial setting time and final setting time will be, and the longer the final setting time will be. Under the condition of low temperature, the slump of concrete should generally not exceed 100mm, and the bleeding should be reduced as much as possible and set as soon as possible. At low temperature, bleeding water will stay on the concrete surface for a long time, which will affect the normal finishing process. Finishing the concrete surface without treatment is one of the main causes of concrete surface defects. If the surface bleeding water is pressed into the concrete during the plastering process, the water-cement ratio of the surface part will increase, resulting in the decrease of strength, air content and surface impermeability. Concrete materials should be designed to minimize bleeding. If bleeding occurs during construction, it should be removed before plastering. 1. The influence of low temperature conditions on the strength of...

Installation Process and Matters Needing Attention of Concrete Mixing Plant Equipment

2024-09-06

In order to ensure the installation progress and reduce the installation workload, the crane and loader are used at the same time to improve the efficiency. Check whether the foundation meets the concrete batching plant installation requirements, and if so, install it. The installation sequence of concrete mixing station is as follows: I. The Main Frame Installation (1) Connect the mixing layer girder with bolts and connecting plates, lift the mixing layer girder with 8t crane, and then rotate it by 180 degrees so that the lower plane of the mixing layer girder faces upwards. Lift the lower legs with 8t crane, connect them with the mixing layer girder by bolts, connect the mixing layer girder with four columns on the ground, hoist the hopper under the mixing layer girder and connect them with bolts, then rotate 180 to make the columns face down, hoist them on the foundation with a big crane, and fix them with footbolts. (2) Hoist the main mixer on the girder and connect it with bolts. (3) Hoisting the weighing layer, connecting the weighing layer...

What to Pay Attention to When Cleaning The Concrete Mixer

2024-09-04

The Importance of Regular Cleaning Concrete mixers often come into contact with materials like cement and sand, which can accumulate over time and reduce the machine's efficiency. If left uncleaned, concrete may solidify inside the mixer, making cleaning more difficult. Regular cleaning not only extends the machine's lifespan but also enhances operational efficiency. Use the Right Cleaning Tools and Methods When cleaning a concrete mixer, it's essential to use appropriate tools, such as a high-pressure water gun and specialized cleaning solutions. Avoid using sharp objects to prevent damage to the machine's surface. Key areas to focus on include the mixing blades, the inner walls of the mixing drum, and the discharge chute, as these areas are most prone to concrete buildup. Cleaning Steps Preparation: Turn off the power to the mixer and ensure there is no remaining concrete inside. Initial Cleaning: Use a high-pressure water gun to wash the inner and outer surfaces of the drum, removing large chunks of concrete residue. Deep Cleaning: Apply cleaning solutions and use brushes to thoroughly clean any remaining concrete, especially around the mixing...

Characteristics of Belt Loading Concrete Mixing Plant

2024-09-02

The characteristics of belt loading in concrete mixing stations mainly include the following aspects: 1. High efficiency: The belt loading method can realize a continuous and rapid loading process, thus improving production efficiency. Especially in large-scale operations, belt-type loading can significantly reduce construction time and improve the utilization rate of the production line. 2. Stability The stability of the conveyor belt can ensure the stable operation of the production line. The belt-type feeding conveyor belt is wider and can accommodate more raw materials, and uses a special transmission structure to effectively avoid tilt and material jamming problems. 3. Energy saving Compared with other feeding methods, belt feeding consumes less energy. It uses an electric motor to drive the conveyor belt, which only provides the power required by the conveyor belt, reducing energy consumption and thus saving costs. 4. Flexibility The belt loading method can be flexibly adjusted to adapt to different specifications and types of raw materials. The conveyor belt can be adjusted as needed to meet different loading needs. 5. Wide applicability The belt loading method is suitable for...

Do You Know the Common Problems and Solutions of Concrete Mixing Plant?

2024-08-28

The application of prevention and control of common quality defects in concrete has become an essential link in concrete construction. In the mixing process of concrete in the mixing station, there are often some problems, which bring trouble to the construction progress and quality. This paper analyzes the causes of common problems in mixing concrete and gives a series of solutions. I. Pumping Concrete Slump Loss, Slump Instability Problem Cause 1. Poor adaptability of concrete admixture and cement causes rapid slump loss of concrete. 2. The content of concrete admixture is not enough, and the effect of retarding and plastic preservation is not ideal. 3. The weather is hot, and some additives fail at high temperature; Water evaporates quickly; Bubble overflow causes rapid slump loss of fresh concrete. 4. The initial slump of concrete is too small, and the unit water consumption is too small. 5. The poor coordination between the construction site and the mixing station makes the tank car press and jam for too long, resulting in excessive slump loss of concrete. 6. Concrete mixing weighing system measurement...

Easily Damaged Parts of Concrete Mixing Plant

2024-08-16

1. Mixing blade and liner The material of mixing blade and liner is generally wear-resistant cast iron. When replacing, it is necessary to replace the accessories according to the requirements of the manual. 2. Conveyor belt Due to the bad load and use conditions, the conveying belt is easy to age or be damaged, so it needs to be replaced in time if it affects the production. 3. Sealing strip of discharge door of main engine After the sealing strip of the main machine discharge door of concrete mixing station is worn, the discharge door moves up. Assuming that adjusting the position of the discharge door can't compress the sealing strip and can't deal with leakage problems such as slurry leakage, it means that the sealing strip is seriously worn and it is necessary to replace it. 4. Filter element in powder tube dust collector After cleaning the filter element, the dust removal effect is still not good, so it is necessary to replace the filter element of the dust collector.

Matters Needing Attention in Summer Construction of Concrete Batching Plant

2024-08-15

When constructing a concrete mixing station in the summer, the high temperatures can present several challenges that need careful management to ensure the quality of the concrete and the safety of the construction process. Here are the key matters that require attention: By addressing these considerations, you can effectively manage the challenges of summer construction and ensure the quality, durability, and performance of the concrete produced during high-temperature conditions.

How to Produce Concrete Mixing Plant in High Temperature Season in Summer

2024-08-15

Producing concrete at a mixing station during high-temperature seasons, such as summer, requires specific strategies to prevent issues like rapid evaporation, reduced workability, and premature setting of the concrete. Here’s how to manage concrete production effectively in high temperatures: By implementing these strategies, you can mitigate the risks associated with high temperatures during summer and ensure the quality and durability of the concrete produced.

Matters Needing Attention in Winter Construction of Concrete Mixing Station

2024-08-15

When constructing a concrete mixing station in winter, several important considerations need to be taken into account to ensure the quality of the concrete and the safety of the construction process. Here are the key points to pay attention to: By paying attention to these factors, you can effectively manage the challenges of winter construction and ensure the success of the concrete mixing station project.

How to Realize the Construction of Concrete Mixing Station in Winter

2024-08-15

When constructing a concrete mixing station in winter, it’s crucial to address the challenges posed by low temperatures to ensure the quality of the concrete and the progress of the construction. Here are key steps and considerations: These measures help ensure the quality and progress of concrete mixing station construction during winter, avoiding issues related to low temperatures.