What Is Concrete Mixer?
A Concrete Mixer Is a device that homogeneously combines cement, aggregate such as sand or gravel, and water to form concrete. A typical concrete mixer uses a revolving drum to mix the components.
What Is a Concrete Mixer Used For?
Concrete mixers are devices capable of preparing concrete mixtures of varying strength precisely as well as quickly. Some concrete mixers are even capable of dispensing the concrete mixture directly on the location of the construction.
Which Equipment Is Used For Concrete Mixer?
Concrete mixers can be divided into general mixers and forced mixers. Nowadays, twin shaft mixers, vertical axis mixers, and drum mixers are the most commonly used mixing machines.
Types Of Concrete Mixer:
Needless to say, just like the requirements of various applications, types of concrete mixers commonly used are also quite versatile in nature. Here’s a list of some of the most commonly used types of concrete mixers and their applications in various construction works.
Concrete mixers can be divided into two broad categories:
- Batch Mixer
- Continuous Mix
1. Batch Mixer:
This type of mixer produces concrete one batch at a time. Batch mixers either have a drum or a pan consisting of blades, which prepare the concrete mix upon rotation. The speed of rotation, angle of the blades, and the angle of inclination of the drum can be controlled. These are the most used concrete mixers and are highly preferable to be used in small and medium-sized construction sites.
Batch mixers can be further divided into two types:
These mixers consist of a double conical frustum-shaped drum. Depending on its type, the drum has either a single set or multiple sets of blades used to mix, prepare, and discharge the concrete mixture. Now, drum mixers are of three different types:
1a. Tilting Drum Mixer: In this type of drum mixer, the drum can tilt upwards or downwards up until a certain angle.
These mixers are highly preferable for large construction sites or applications where construction work is carried out intensively.
1b. Non-Tilting Drum Mixer: These drum mixers come with a non-tilting drum that rotates on its horizontal axis to produce concrete. This type of drum mixer is generally used in small construction sites.
1c. Reversing Drum Mixer: Quite like non-tilting drum mixers, these mixers also have openings at both ends and the elements of the concrete mix are poured in from one end and the final mix is collected from the other. Reversing drum mixers are most suitable for preparing dry mix concrete.
1d. Pan Mixer: This type of mixer has a cylindrical pan in which concrete is prepared. Just like drum mixers, these mixers also have blades that facilitate the process of mixing. These blades are generally shaped like a star to ensure optimum efficiency.
Pan mixers are the most efficient type of concrete mixers. These mixers are most suitable for preparing stiff and lean concrete mixes.
2. Continuous Mixer
These concrete mixers work without any interference and keep manufacturing concrete continuously if work is going on. They are continuously fed raw materials. As soon as the mix is ready, concrete is discharged and collected by construction workers. Continuous mixer systems are generally set up in the construction site itself. These mixers are deployed while constructing very large structures, such as bridges, tunnels for roads, and dams.
How Long Does Concrete Mixer Last?
The answer is yes and no Yes : According to ASTM C-94, concrete discharge must be complete within 90 minutes of mixing water with cement and aggregates.
How Much Capacity Does A Concrete Mixer Hold?
Mixers come in different volumes, the most common is a 9 cubic foot mixer. 9 cubic feet is the total volume of the mixer, but the batch volume is actually 6 cubic feet, meaning you can only mix up to 6 cubic feet of concrete at a time.
How Long Does It Take To Mix Concrete In a Mixer?
about 3-5 minutes
Mix the concrete for about 3-5 minutes, until a uniform, workable consistency is achieved. If additional water is needed, add small amounts of water sparingly.
What Size Is a Concrete Mixer?
Generally, mixers in the 6 to 9 cubic foot range are what most people select. Within this size range, batch sizes ranging from under 300 pounds to almost 500 pounds are possible. When selecting a mixer size, it’s important to consider the smallest batch as well as the largest batch you’ll be making.
How Much Water Do I Add To Concrete Mixer?
In order to have enough water to possibly enable complete hydration of the cement, approximately 20 pounds of water to every 100 pounds of cement is necessary.
How Do I Choose a Concrete Mixer?
Some small factors that need to be considered while choosing a concrete mixer are:
- Drum Volume.
- Concrete Mixer Power.
- Mains Voltage.
- Drum Rotation Frequency.
- The Blades.
- Wheels on the Frame.
- Noise Level.
Advantages Of Concrete Mixer outlined below:
- Fresh Concrete For Your Jobsite.
- Environmentally Friendly
- Flexible Concrete Delivery.
- Makes concrete work easier and faster.
- Ensures even mixing of concrete.
- Improve the quality of concrete structures.
Concrete Mixer Prices In Ghana:
The price of concrete mixer machines in Ghana is hugely dependant on the type of mixer you are looking for. The average price of self loading concrete mixer machines in Ghana is GHS 73,000.00 whiles the ordinary concrete machine we all know of has an average price of GHS 40,000.00