News - Page 12

What Should be Paid Attention to in Concrete Construction in Spring?

2024-09-29

Because it is dry and windy in spring, the temperature difference between day and night is large, the temperature of concrete varies greatly in different time periods, and the temperature difference between inside and outside of concrete is also large, which is easy to form temperature shrinkage cracks. In this season, the air is dry, and the wind is stronger on the empty construction site floor, and the surface of freshly poured concrete loses water quickly, which is easy to form air-dried plastic shrinkage cracks. In order to ensure the construction quality, the following points should be paid attention to in spring concrete construction: I. Preparation before construction There will be some noise during the operation of concrete mixing station, which will have a certain impact on the surrounding environment and residents' lives. Therefore, concrete mixing stations should take effective measures to reduce the generation and spread of noise. (1) Check whether the construction equipment is in good condition, such as mixing station and delivery pump. (2) Check the formwork, steel bars, etc. to ensure that their sizes and positions...

How to Build an Environment-friendly Concrete Mixing Plant?

2024-09-27

The concrete mixing station is a kind of equipment specially used for producing and mixing concrete. However, in the production process, the concrete mixing plant usually emits a lot of pollutants such as waste gas, dust and noise, which has a certain impact on the surrounding environment and human health. Therefore, environmental protection requirements are one of the important factors that must be considered in concrete batching plants. In order to meet the requirements of environmental protection, ready mix concrete batch plant needs to take measures such as reducing noise, dust, waste residue emission, energy saving and emission reduction, and strengthening environmental management. The following are specific measures: I. Reduce noise pollution There will be some noise during the operation of concrete mixing station, which will have a certain impact on the surrounding environment and residents' lives. Therefore, concrete mixing stations should take effective measures to reduce the generation and spread of noise. (1) In terms of site selection, it should be as far away from residential areas and environmentally sensitive areas as possible, and at the same time consider...

What If It Rains Suddenly When Pouring Concrete? Stop or Not?

2024-09-25

Recently, I can always see workers complaining that it rains as soon as concrete is hit, and this job can't be done! It's been raining, and the concrete can't be hit. What about the construction period? What should I do if I stop or stop in the middle of pouring concrete? In order to avoid unnecessary losses, it is necessary for us to understand the problems encountered in rainy season construction and their solutions. I. The rainy season construction should do the following work: 1. The sand silo should be well drained. 2. Means of transport should have rain-proof and anti-skid measures. 3. The pouring bin surface shall be provided with rain-proof measures and waterproof covering materials. 4. Increase the determination times of aggregate moisture content and adjust the mixing water consumption in time. II. When pouring in light rain, the following measures should be taken: 1. Appropriately reduce the concrete mixing water consumption and the slump of concrete at the outlet, and appropriately reduce the water-binder ratio of concrete when necessary; 2. Strengthen the drainage in the warehouse and...

What Site Planning Does The Concrete Batching Plant Need?

2024-09-23

With the rapid development of modern cities, concrete mixing stations are more and more widely used. Let's talk about the site planning in detail! I. Choosing the site Choosing the site is the most basic work in the early stage of the station construction. We must pay attention to staying away from residential areas and high-voltage power lines, and it is best to be close to the main road for convenient transportation. The conditions to be achieved are "three links and one leveling": access, electricity supply, water supply and leveling the site. II. Clean up After the site is selected, it needs to be cleaned up, at least the road surface debris, silt and other factors that affect the site leveling and environment should be cleaned up and piled up in a unified way, so as not to cause pollution. III. The excavation Before excavation: it is necessary to do a good job of intercepting ditch at the top of the slope and do a good job of seepage control according to the soil conditions. Excavation: excavation must be done...

Difference Between Mobile Concrete Mixing Plant And Stationary Concrete Mixing Plant

2024-09-20

The main difference between mobile concrete mixing station and fixed mixing station lies in its mobility and flexibility. The following is a detailed comparison: I. Structure and mobility Mobile concrete mixing station: 1. Structure: designed to be movable, usually installed on the towing unit, which is convenient for transportation and movement.2. Mobility: It can be easily moved from one place to another when necessary, and it is suitable for small and medium-sized projects and projects that need to change work places frequently.3. Disassembly and assembly: easy to disassemble and assemble, reducing the transportation cost and time at the end of the project or the change of location. Fixed concrete mixing station: 1. Structure: It is usually permanently installed on the project site, with more stable structure and larger scale. 2. Mobility: No mobility, once installed, it will be fixed in this position, suitable for long-term and large-scale projects. 3. Disassembly: The process of disassembly and reinstallation is complicated, time-consuming and costly. II. Production capacity and application scope Mobile concrete mixing station: 1. Production capacity: the production capacity is relatively low,...

Problems That Are Easy To Occur In The Operation of Mixing Plant and The Troubleshooting Process And Solutions

2024-09-18

Concrete is widely used as the most important building material in the construction industry. The mixing station has realized the batch and continuous production of concrete. In the process of production and use, the mixing station will suddenly have various failures. Today, let's take a look at the common failures of the concrete mixing station. First, the motor of the main mixer cannot be started. I. The motor of the concrete mixer cannot be started It is difficult to start the motor of the main mixer, or it makes a "buzzing" sound during the starting process. At this time, it is necessary to stop it urgently and disconnect the power supply for inspection. Inspection process: Open the motor junction box, and measure whether the power supply voltage of the junction box is normal and whether there is a problem of missing phase. If it is found that the voltage is abnormal or the phase is missing, measure the output power supply voltage of the circuit breaker in the motor control cabinet and whether the phase is missing. If it is...

Use Process of Stabilized Soil Mixing Station

2024-09-14

When the stabilized soil mixing station is used, it is necessary to prepare equipment, raw materials and protective equipment, operate in the starting order, prepare the mixed stabilized soil and transport it to the storage bin, and stop the machine for cleaning and maintenance after operation. Operation shall comply with safety regulations, ensure efficient and safe operation, and stabilize soil quality up to standard. The use process of stabilized soil mixing plant can be clearly divided into several key steps to ensure its efficient and safe operation. The following is the detailed use process: I. The preparation before starting Equipment inspection 1. Check whether the connection of each part of the stabilized soil mixing station is firm and reliable, and whether the lubricating oil of each part is filled to the specified value. 2. Check whether there is slurry leakage at both ends of the spindle and whether the gap between the mixing blade and the liner is within the specified range. 3. Check whether the conveyor belt is damaged and whether the mixer can rotate normally. 4. Check whether...

The Advantages and Disadvantages of Free Foundation Concrete Mixing Station

2024-09-12

What is a foundation-free concrete batching plant? Free foundation, also known as steel foundation, refers to replacing concrete foundation with steel structure foundation. In fact, the foundation-free concrete mixing station doesn't really need to do foundation construction, but it doesn't need to drive such a deep foundation like the fixed concrete mixing station. It also needs to harden the ground, make a shallow foundation, and put all the equipment parts on a heavy steel chassis. The foundation-free concrete mixing station is a complete set of automatic concrete mixing equipment, which is composed of batching, mixing and electric control. The concrete mixing plant eliminates the process of designing and installing the foundation, greatly saves the time and foundation cost for customers, and can be relocated for secondary use. It is suitable for medium-sized and large-scale construction sites, prefabricated factory, high-speed rail and highway and Water Conservancy and hydro-power projects and commercial concrete production lines. Difference between foundation-free concrete batching plant and ordinary concrete batching plant 1. The foundation-free concrete mixing station is different from the traditional concrete mixing station Steel foundation:...

What Are The Layout Methods of The Concrete Mixing Plant?

2024-09-12

The layout of the concrete mixing station mainly includes the following: I. Vertical concrete mixing station The material only needs to be lifted once, and then it falls to each working procedure by its own weight. This layout has the advantages of high efficiency, small floor space and easy automation. However, its disadvantages are complex structure, high manufacturing cost and high installation height. II. Horizontal concrete mixing station The materials need to be lifted twice, first to the storage hopper, then to the mixer after weighing. This layout is simple in structure, low in cost and small in building height. But the disadvantage is that the efficiency is lower than that of vertical concrete mixing station. III. Mobile concrete mixing station The loading, storage, weighing, mixing and unloading devices are installed on the same base. This layout is compact in structure, easy to carry and can directly enter the construction site, thus shortening the transportation distance of concrete and improving economic performance. But the disadvantage is that the general production efficiency is not high and the failure rate is relatively...

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...