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What Are the Causes of Cracks in Concrete Pump Pipes?

Jan. 25, 2021
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The use of concrete pumps makes it possible to shorten the progress of the project. In construction, many builders set up pipes to the concrete pumps and carry out the construction by controlling them. However, to ensure the smooth running of the project, the concrete pump needs to make the appropriate preparations before pumping. So what do concrete pumps need to pay attention to before pumping? In construction, due to unreasonable maintenance, it is likely to lead to cracks in the structure of the concrete pump pipe. Experts point out that a series of preparatory work needs to be carried out on the concrete pump before construction.

Experts pointed out: concrete pump pipe structure cracks There are many reasons, not only with the construction process, but also with the cement maintenance may not be reasonable related, then the concrete pump pipe structure cracks What are the reasons? Now, concrete pump pipe supplier will three of the most common causes are summarized as follows.

1.Concrete construction skills and quality

In the construction process, if the construction process of concrete is unreasonable, poor vibrating, improper maintenance, premature demoulding, construction load effect, etc., these reasons are likely to lead to the formation of concrete cracks.

2.Concrete selection and concrete production

During construction, if the cement used has poor water retention, high water secretion, high shortening rate, high heat of hydration, unreasonable grading of aggregates used, high mud content, or unreasonable concrete cooperation ratio, excessive water-cement ratio, improper concrete slump control, etc., these reasons are likely to lead to cracks in the concrete structure.

3.Planning factors

If the reinforced concrete reinforcement rate is high, the reinforcement is too dense, when the stone scale is large, the concrete is often difficult to fill, so that its homogeneity is poor, easy to form uneven shortening and cracking.   

 Concrete Pump Pipes

For example, it is necessary to check the components and to follow the rules of operation. So what do concrete pumps need to pay attention to before they are pumped? Specifically, attention can be paid to the following points.

 

1. Before pumping, when the hydraulic oil temperature is lower than 15C, the method of extending the airlift time should be used to increase the oil temperature.

2. When pumping, check the operation of the pump and mixing device, monitor the instruments and indicators, and stop the machine in time if abnormalities are found.

3. The concrete surface in the hopper should be kept above the centre line of the mixing shaft and the pumping of concrete should be continuous. 3. The concrete surface in the hopper should be kept above the centre line of the mixing shaft and the pumping of concrete should be continuous. During the suspension time, the concrete should be pumped every 5 to 10 minutes (3 to 5 minutes in winter) for 2 to 3 strokes, and the material should be mixed before pumping again. During the suspension time, the concrete should be pumped every 5 to 10 minutes (3 to 5 minutes in winter) for 2 to 3 strokes, and the material should be mixed before pumping again. 4. During operation, the grid on the hopper should not be taken down and unqualified aggregates or debris should be removed in time.

4. During operation, the grid on the hopper should not be taken down and unqualified aggregates or debris should be removed in time.

Concrete pump is a construction tool used by many builders, but in construction due to unreasonable maintenance, it is likely to lead to cracks in the concrete pump pipe structure, so what are the reasons for cracks in the concrete pump pipe structure?

 


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