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How to maintain the mixer? Cement to concrete ratio?

April 11, 2024
How to maintain the mixer? Cement to concrete ratio?

Usually buyers have many questions after purchasing a concrete mixer from abroad. Today I will answer your frequently asked questions, as well as some key questions that buyers often ask, and I hope you can ask more questions or contact us.


1F
Tip 1: Best time to pour concrete? What should I pay attention to when pouring concrete on the road?



Generally, the best time to pour concrete is at normal temperature (excluding winter and summer, heavy rain and drought). After pouring concrete, you need to water it once a day. Rain in winter will cause poor concrete solidification. Summer drought can cause concrete to break, among other things.


It is not recommended to lay fresh concrete on extremely hot or cold days. At high temperatures, too much water may be lost due to evaporation. If the temperature falls below a certain value, hydration slows down.

 

Under these weather conditions, concrete stops gaining strength and other important properties. The general rule is that the temperature of fresh concrete should not drop below 10 degrees Celsius while it is curing. The minimum temperature should be +4 °C (40 °F) for air, mixture and substrate. This temperature should occur not only during application but also within 24 hours of application.

 

When the temperature is too hot, the curing rate of concrete is accelerated, causing low-quality concrete to deteriorate quickly.


23 degrees Celsius is too hot for pouring concrete. Before turning on your cement mixer for the day, check the weather so you know what to prepare.




2F
Tip 2: Is there a specific mix ratio for high-quality concrete?


First: If you want the perfect mixing ratio to get quality concrete from your cement mixer, start experimenting with different ratios. The 6 rule is one way to get a good cement mix.


The rules start with using at least 6 bags of cement, 6 gallons (22.7 liters) of water per bag, at least 6 days to set, and the concrete should have an air content of 6%. Use the Rule of 6 to create the best concrete for your project.


The second type: the mix ratio is: 0.47:1:1.342:3.129 (daily use)


Material usage per cubic meter: water: 190kg cement: 404kg sand: 542kg stone: 1264kg



3F
What is the Difference Between Concrete and Cement?


Concrete, cement and mortar are often used to refer to the same thing. But cement is the ingredient used to produce concrete, which combines aggregate and a paste made of water and cement.


 

Cement is also an ingredient used in mortar. These mixtures are made from clay, silica sand, limestone and shells. This mixture hardens when mixed with water. Concrete mixture is used for foundations, patios, floor slabs, etc.



Concrete is a flexible material used in molds that becomes rock solid once fully cured.


 

Additionally, mortar is a mixture of cement and sand. This material is used like glue to hold blocks and bricks together. Just like concrete, several different types of mortar are used for a variety of purposes.




4F
How long does it take for concrete and mortar to cure?


Most concrete and mortar typically require 28 days to fully cure. 


Temperature, humidity and other factors can affect cure time. Be sure to check your product packaging for details.



5F

Daily concrete mixer maintenance points:




1. The bevel gear of the mixer (the main gear, located between the engine and the roller) rolls more and wears out faster. If it breaks, it needs to be replaced. To replace it, the entire drum needs to be removed.


2. Grease nozzles: There are three grease nozzles above the mixer (and front and rear). Because of the high rotation frequency, butter needs to be added according to time. The grease nozzles on the front and rear axle seats are refueled frequently (once every 2 weeks), and the upper drum spindle is refueled frequently (once a week). , or even less, if there is no oil, add it).


3. V-belt: The V-belt of the mixer (located above the engine) drives the mixer to work. If the V-belt is damaged (replaced), the engine must be removed before replacement.


4. Steering wheel pinion: used for steering wheel operation to drive the entire mixer. (Located in front of the mixer operating wheel)



6F
Why does my blender keep losing power?


because the mixer works for a long time and the temperature of the motor is relatively high. The motor activates the self-protection function and automatically stops working when the temperature is too high.


7F
Sometimes I go out for business and the cement (concrete) is still in the mixer. What's the impact?


As long as the mixer is mixing concrete normally and does not go out for a long time, there is generally no impact.


If the mixer stops rotating and the concrete remains stationary for a long time, it will be scrapped directly and is not suitable for pouring roads and other buildings.



8F
END


We are a Chinese manufacturer specializing in the production of concrete mixers. We have 29 years of business experience, 7 professional engineers and 3 local factories. Our many years of experience have led to us having over 1,000 customers in 128 different countries around the world.



If you have any questions about concrete mixer and need our help, you can contact us at any time, we look forward to hearing from you and establishing a good business partnership with you.


Cases of customers purchasing concrete mixers and our services:https://www.nbacetools.com/news-detail-4686744


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