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  • The concrete wet spray machine manipulator fully mixes the concrete and the admixture through the spray system
    The concrete wet spray machine manipulator fully mixes the concrete and the admixture through the spray system
    Generally speaking, a wet concrete spraying machine manipulator refers to the simultaneous installation of a concrete pump, a manipulator, an additive metering system, an air delivery system, and a multi-degree-of-freedom robot on a self-propelled chassis vehicle. , And mix the prefabricated wet concrete according to a certain formula to spray the material on the mechanical equipment of the designated working surface.
    2020-09-29
  • Prevent Accidents Involving Small Wheel Loader Tires
    Prevent Accidents Involving Small Wheel Loader Tires
    First of all, with the widespread use of small wheel loaders, some problems have slowly appeared. Friends who are concerned about us should know that daily maintenance is a very important operation step. Sometimes with the hot weather, loaders If you are outside for a long time, it is easy to burst. So in order for this phenomenon to happen, the editor summarized a few requirements for friends, then we will not talk nonsense, and interested friends will continue to Look down.
    2020-09-07
  • How to extend the service life of automatic self loading concrete mixer truck?
    How to extend the service life of automatic self loading concrete mixer truck?
    The physical condition of the automatic self loading concrete mixer truck during the divergence period is very different. Here I divide the life cycle of the concrete mixer truck into five stages: peak period, Microsoft period, menopause, late life and risk period. In these five stages, the maintenance and repair of concrete mixer trucks are also different in focus.
    2020-08-07
  • What should be paid attention to when cleaning the mixing tank of self-loading mixer truck?
    What should be paid attention to when cleaning the mixing tank of self-loading mixer truck?
    . After the self-loading mixer truck has finished unloading at the construction site, the hose provided with the self-feeding mixer truck should be used to flush the hopper, discharge hopper, discharge chute, etc., to remove the dirt that adheres to the body. Mud and concrete. On the way back to the mixing station, 150---200L of water should be poured into the mixing drum to clean the concrete residues on the wall and blades.
    2020-08-07
  • Talking about the daily maintenance of automatic Self Loading Concrete Mixer Truck
    Talking about the daily maintenance of automatic Self Loading Concrete Mixer Truck
    The working environment of the automatic self loading concrete mixer is relatively bad, and the user does not pay attention to daily maintenance, which has caused some unnecessary failures and economic losses. I hope that the daily use of the majority of automatic self loading concrete mixer truck users will be introduced through the editor below. And maintenance play some role.
    2020-07-29
  • What is the difference between a self-loading concrete mixer and a forced concrete mixer?
    What is the difference between a self-loading concrete mixer and a forced concrete mixer?
    The difference between self-loading concrete mixer and forced concrete mixer is:
    1. The mixing tank works differently:
    In the self-loading concrete mixer, the mixing drum rotates at an appropriate speed; while the mixing drum of the forced mixer is fixed.
    2. Different mixing uses:
    Self-loading concrete mixers are mostly used to mix general plastic concrete, and mandatory mixers are mostly used to mix dry hard concrete and lightweight aggregate concrete.
    2020-07-29
  • Auto Self-loading Concrete Mixer Truck Driving Methods
    Auto Self-loading Concrete Mixer Truck Driving Methods
    When using an automatic loading mixer truck to load concrete, the rotation speed of the mixing drum is 2-10 rpm. During transportation, ensure that the speed of the mixing tank on the horizontal road is 2-3 rpm. If the slope is greater than 50, when the road is uneven or shakes violently, stop mixing and spinning, and wait for the road to improve before mixing and spinning.
    2020-07-22
  • Tunnel construction technology and method
    Tunnel construction technology and method
    The quality of the tunnel depends on the quality of the process. The quality of the process depends on the quality of the excavation, initial support and drainage and drainage, etc. The better control of the initial support and drainage and drainage can strengthen supervision, so the focus is on the quality of the excavation, which depends on the quality of the excavation The quality of drilling and blasting means that in theory, the quality of the initial support without over-excavation
    2020-07-17
  • What are the advantages of automatic feeding mixer operation?
    What are the advantages of automatic feeding mixer operation?
    1. The operating lever is convenient for operation, and the touch screen adds water quantitatively.

    2. The operation is sensitive and convenient, and the quantitative addition of water on the touch screen makes the stirring more uniform and more in line with the specifications.
    2020-07-13
  • What is concrete slump
    What is concrete slump
    Concrete slump mainly refers to the plasticizing performance and pump ability of concrete. The factors that affect the concrete slump mainly include gradation change, water content, weighing deviation of the scale, and the amount of admixture, which are easily overlooked. Cement temperature, etc. Slump refers to the workability of concrete, specifically to ensure the normal progress of construction, including the water retention, fluidity and cohesion of concrete.
    2020-06-23
  • Concrete slump detection
    Concrete slump detection
    (1) When the concrete strength level is less than C50, the slump should be less than 180 mm, and when the strength level is greater than C50, the slump should be greater than 180 mm; (2) When the specified concrete slump is less than 40 mm, the allowable deviation is ±10 Mm; when the specified concrete slump is 50~90 mm, the allowable deviation is ±20 mm; when the specified concrete slump is greater than 100 mm, the allowable deviation is ±30 mm;
    2020-06-23
  • Eliminate concrete bubbles, super smooth concrete surface construction method! ((1)
    Eliminate concrete bubbles, super smooth concrete surface construction method! ((1)
    Concrete refers to a general term for engineering composite materials in which aggregates are cemented together by cementitious materials, and is widely used in civil engineering. Because it consists of solid phase, liquid phase, and gas phase, some bubbles will inevitably be produced after the concrete is poured. But the existence of these bubbles will not only affect the appearance of the project, but more importantly, it will have some hidden risks.
    2020-06-04
  • Eliminate concrete bubbles, super smooth concrete surface construction method! (2)
    Eliminate concrete bubbles, super smooth concrete surface construction method! (2)
    For the treatment measures of concrete bubbles, select the appropriate vibrating equipment, and determine the appropriate vibrating time, vibrating radius and frequency. At the same time, vibrate according to the method of "fast insertion, slow pumping, up and down drawing", the vibrating rod should be straight up Quickly insert and pull slowly, no leakage is allowed. When vibrating, it should twitch up and down.
    2020-06-04
  • Temperature difference to be noticed in concrete engineering
    Temperature difference to be noticed in concrete engineering
    When the average day and night temperature is lower than 5 ℃ or the low temperature is lower than -3 ℃, it should be treated as winter construction. When the ambient temperature is lower than 5 ℃, it is forbidden to sprinkle the concrete surface for curing. At this time, the curing liquid can be sprayed on the concrete surface, and appropriate heat preservation measures should be taken.
    2020-05-21
  • Construction of water conservancy projects starts with understanding concrete construction!
    Construction of water conservancy projects starts with understanding concrete construction!
    What is hydraulic concrete? In order to achieve the purpose of flood control, irrigation, power generation, water supply, shipping, etc., it is usually necessary to build different types of buildings for water blocking, flood discharge, water delivery, sand discharge, etc. These buildings are called hydraulic structures.
    2020-05-19
  • Relying on the
    Relying on the "four forces" in the concrete industry to promote the resumption of production
    From the long winter twelfth lunar month to decisively press the "pause button" for the prevention and control of the spread of the new crown epidemic, to the early spring of February to grasp the epidemic prevention and control and the economic development and start the "fast forward button" to resume production in time, concrete and cement All enterprises and employees in the product industry have experienced this difficult and unforgettable process.
    2020-05-15
  • Relying on the
    Relying on the "four forces" in the concrete industry to promote the resumption of production and production (2)
    High-tech projects are the focus of local governments to support resumption of work. Since February, more than 50 production bases of Jianhua Building Materials Group have resumed production and resumed production. On the premise of doing a good job in epidemic prevention and control, each subsidiary accelerated production and guaranteed transportation, helped the major projects in various regions to resume work smoothly, and recaptured the delayed construction period .
    2020-05-15
  • When the concrete delivery pump is interrupted during pumping?
    When the concrete delivery pump is interrupted during pumping?
    At present, concrete pumps have been widely used in the construction of concrete projects. By adopting the concrete delivery method, the construction party can not only reduce costs, but also save construction time and standardize the construction site. However, some problems will inevitably occur during the use process, such as the flow interruption during the pumping process, so why does the concrete delivery pump have a flow interruption? What harm will it cause?
    2020-05-14
  • Pumping concrete is always blocked and exploded. Have you encountered these eight cases?
    Pumping concrete is always blocked and exploded. Have you encountered these eight cases?
    According to the various data provided by the concrete mixing station, I summarized some experiences and lessons in the application of pumping commercial concrete to block pumps and pipes, and hope to help you concrete friends. The characteristics of pumped concrete are uniform material quality, stable quality, and fast feed speed. It can continuously complete vertical and horizontal transportation at one time, with high production efficiency and labor saving. Because the concrete delivery pump
    2020-05-13
  • Additive PH value affects pumping
    Additive PH value affects pumping
    Machine-made sandstone powder (referred to as powder below 75μm), reaching 3312%. In order to meet the particle grading requirements, the crushed stone plant will wash the machine-made sand with water, and the powder will be washed away by water to make the fine particles 01315mm sieve pass the sieve residual value 5%. At first, we did not pay enough attention to this situation. The average particle size of the sand increased by 2%, but the pumpability
    2020-05-13
  • Industry | National Development and Reform Commission: The resumption rate of key projects has reached 89.1%
    Industry | National Development and Reform Commission: The resumption rate of key projects has reached 89.1%
    Ou Hong, director of the Investment Department of the National Development and Reform Commission, said in Beijing on the 21st that as of March 20, the rate of resumption of key national projects had reached 89.1%. On March 21, Ou Hong, director of the Investment Division of the National Development and Reform Commission, said in Beijing that as of March 20, the national key project recovery rate had reached 89.1%.
    2020-05-11
  • Common hazards of concrete pump transmission
    Common hazards of concrete pump transmission
    It is often encountered that the concrete transmission pump gearbox is covered, and some harm will occur. Today, the editor will take you to see what are the common hazards of concrete pump gearboxes covered?
    2020-05-11
  • The epidemic situation has five outstanding problems after the construction industry resumes work
    The epidemic situation has five outstanding problems after the construction industry resumes work
    On February 26, the Ministry of Housing and Urban-Rural Development issued the "Notice on Strengthening the Orderly Prevention and Control of New Coronary Pneumonia Epidemic Situation and Promoting Enterprise Resumption and Work", emphasizing the need to strengthen the prevention and control of outbreaks in the field of housing construction and municipal infrastructure engineering, and orderly promoting enterprise development Resume work.
    2020-05-09
  • China Construction Industry Association released an investigation report on the impact of the epidemic on construction companies
    China Construction Industry Association released an investigation report on the impact of the epidemic on construction companies
    As a downstream industry of the building materials industry, the construction industry's situation and changes are closely affecting the development of the building materials industry. The construction industry is a labor-intensive industry. Because the employees are mainly construction workers, the industry is greatly affected by the epidemic situation, and it is difficult to resume work, which directly affects the supply of upstream building materials.
    2020-05-09
  • ZL926C 1.6t rated load wheel loader with extension jib lengthen 4.2m working arm shipping to Nigeria
    ZL926C 1.6t rated load wheel loader with extension jib lengthen 4.2m working arm shipping to Nigeria
    Front end wheel loader is a kind of earthwork construction machinery widely used in highway, railway, construction, hydropower, port, mine and other construction projects. It is mainly used for shoveling bulk materials such as soil, sand, lime, coal, etc. , Hard soil, etc. for light shoveling. Replacing different auxiliary working devices can also carry out bulldozing, lifting and other materials such as wood loading and unloading operations.
    2020-05-08
  • Concrete Placing Boom Matters Need Attention in Application
    Concrete Placing Boom Matters Need Attention in Application
    The safe operation of the trailer mobile spider concrete placing boom machine mainly includes the following points:
    1. The end pouring hose must be fastened with a safety rope. It is forbidden to use the end hose with a length of more than 3 meters to cast. The hose must not be inserted into the poured concrete and work strictly in accordance with the scope of the distributor.
    2020-05-06
  • These operating points of the concrete pump must be clear
    These operating points of the concrete pump must be clear
    Concrete pumps are very common in the current construction. With the high-efficiency construction effect, they are very popular with customers. This article mainly analyzes the operation points of concrete pumps.
    2020-04-27
  • What is the difference between boom concrete pump truck and EFI truck?
    What is the difference between boom concrete pump truck and EFI truck?
    1. Different nature: EFI vehicles are equipped with electronically controlled fuel injection systems. It is short for electronically controlled gasoline injection engine. The concrete pump truck is a machine that continuously transports concrete along the pipeline using pressure, and is composed of a pump body and a delivery pipe.
    2020-04-27
  • What are the characteristics of high- and low-pressure pumping of Saintyol DAWIN Machinery pump trucks?
    What are the characteristics of high- and low-pressure pumping of Saintyol DAWIN Machinery pump trucks?
    1. The latest composite three-generation delivery pipe of the pump truck, the inner layer is high-strength and wear-resistant, the life of the straight pipe is up to 50,000 square meters, and the life of the bent pipe is up to 20,000 square meters.
    2. The service life of the concrete piston made with special reinforcement materials and wear-resistant special answer technology is up to 30,000 square meters
    2020-04-27
  • The adaptability of concrete admixture? Seven-step solution!
    The adaptability of concrete admixture? Seven-step solution!
    The unsuitable performance is firstly that the slump of fresh concrete is small and the expansion is small, but the amount of water reducing agent is already quite large at this time. The popular saying is "unopenable"; secondly, the slump loss is large, Sometimes there is even false setting, that is, the cement slurry is very thin at the beginning of the mixing, but it quickly sticks and dries, and the workability of the concrete after the machine is very poor;
    2020-04-23

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