New Concrete Power Trowel in Pakistan
By Maxen Engineering Concrete Machinery • • • • • • 0 Comments

Use of Power Trowel Machine in Pakistan

Introduction:

Conventionally concrete slab finishing which is seen and done using hand held trowels is now largely replaced by mechanical trowels also known as power trowels or concrete power float. We will highlight this aspect and how and where concrete power trowel is used in Pakistan construction scene. We see power trowels mostly on building projects, public infrastructure projects and concrete corridors etc. where concrete slabs are laid in general.

How a concrete power trowel works?

Let’s first briefly understand how a power float looks like. The anatomy of power trowel machine is inspired from a manual hand trowel. The trowel machine frame consolidates 4 trowel blades in a circular ring pattern coupled with the main gear unit. Once the gear unit gets power it transfer the same downwards to the trowel blades assembly and the 4 blades start rotating 360 degree. The momentum builds up and the concrete power trowel blades start rubbing the concrete slab gently. The resulting friction between the concrete surface and machine makes the machine float in multi direction. A trained technician handles the machine around the concrete surface or concrete panels and also adjusts trowel blades angle on the move through blade’s wire control on machine’s handle. In some cases a concrete compaction disc pan is used, affixing the disc’s brackets with trowel blades. The trowel blade rotation makes the disc rotate 360 degree. A trowel disc is like a circular pan with weight and smooth surface typically used when concrete is wetter. If the disc is used in the first place, a round of machine without the disc is done later on resulting in a more compacted and better polished finish of the concrete.

Salient Benefits of Concrete Power Trowel:

How did power trowel gain popularity? It’s the result that matters. The floor finished by a mechanical trowel machine as compared to manual labor differs. It is well compacted due to the machine weight, better polished concrete due to steady 4 trowel blades action. Importantly enough the cracks and empty pours does not remain a possibility at large while there is a lot of time saving to add more. Have a quick look at more details and price of power trowel in Pakistan.

 

Types of Power Trowel Available in Pakistan:

There are 2 types of power trowels; a ride on power trowel and a walk behind power trowel. Ride on type is currently unfamiliar to the Pakistan market while the latter one is popular. As the name suggests, a ride on power trowel allows the operator to sit on the machine’s driving seat while working. On the other hand a walk behind trowel has a handle which the operator holds and the operator walks with the machine as it works. Get in touch for more details of flooring tools and best construction equipment in Pakistan.

Concrete Groove Cutter Machine
By Maxen Engineering Concrete Machinery • • • • • 0 Comments

Latest Cutting Tools Used In Concrete Flooring Projects In Pakistan

Introduction

Every construction project is laid on some surface and concrete flooring is the process of paving or finishing that surface with raw concrete. Concrete flooring is an old and trusted method of shaping and making the final floor as it offers stability, durability and cleanliness altogether. This cannot be done swiftly without incorporating latest cutting tools used in concrete flooring projects in Pakistan.

 

Use of Concrete Flooring Machines:

Construction tools and equipment in Pakistan play a vital role in timely project execution and similarly concrete flooring machines are utilized in flooring jobs. There are various types of concreting equipment available on the market today. Cut off saw machine is used for cutting concrete slabs, groove cutting and linear floor cutting applications in general. They are recalled with different names like floor groove cutting machines, concrete cutting machines and floor concrete cutter etc. Once the poured concrete dries out and cured with water these concrete cutting machines are placed on the concrete slab for working. The cutter machine engine gives motion to the attached diamond saw blade that rotates in high speed and produce compressive pressure on the top slab then penetrating through the depth of concrete slab. For a perspective, a 14 inch cutting disc could process cutting depths less than half its diameter like 3.5- 4 inches largely depending on the surface characteristics and quality of the equipment.

 

 

Main elements of Concrete Floor Cutter:

A typical branded concrete cutter available in Pakistan consists of a drive unit like petrol or diesel engine, a cut off saw blade 18 inch diameter, a water tank of 20 liter capacity. MAXEN is the local supplier of light construction machinery in Pakistan. Have a look at cut off saw machine price in Pakistan.

construction tools for building best price pakistan
By Maxen Engineering Concrete Machinery • • • • • • • • • • • 0 Comments

Concrete Vibrator Usage in Building Construction And Civil Engineering Projects

Concreting is a vital part of any structural development and a predominant concern for structural engineers is to ensure adequate concrete vibration. Primarily low technical skills of poorly trained construction worker are a growing challenge that leads to failure in achieving concrete consolidation.

It is the responsibility of construction contractor to train their workers on how to properly consolidate concrete on each concrete pour. When the concrete is poured it contains excessive amount of entrapped air. Failure to remove which would result in low strength concrete and in some cases leaving visible voids in the structure.

How is concrete compacted then?
Notably the best known method for concrete compaction is through vibration produced by hand rodding. The worker gets hold of a steel rod and hits the concrete to and fro as soon as it is poured in the concrete form work. This creates the movement and vibration in the concrete and it settles down well in its form work while the entrapped air breaks apart.
But due to the nature of fast track construction, high rise buildings and typical structural engineering; construction contractors have adopted alternatives of hand rodding. Moreover construction equipment manufacturers have capitalized this by developing specialized equipment that replaces hand rodding at large. The most famous of them all is an internal vibrator popularly known as “Concrete Vibrator” “Vibrator Shaft” or “Concrete Rod”
How the concrete vibrator should be used?
Concrete vibrators should be inserted vertically into fresh concrete and kept stable in one place for some time. The vibrations caused by the concrete pendulum shaft would segregate excessive air and water from the cement and aggregates thus consolidating it better.

Some Precautions For Better Concrete Vibrator Usage:
1. The concrete vibration should be done in steps like the concreting is done in layers. Every time a layer of concrete is poured, only that should be processed by a concrete vibrator. Later when the next layer of concrete is poured, the vibration should be done on that latest layer as the previous layer was already compacted.

2. The vibrator should be inserted in concrete for at least 5 to 15 seconds before being removed slowly. This amount of time will adequately vibrate most concrete.
3. The entire hose pipe should not be dipped in the concrete because the vibrating element is in the head of the mechanical vibrator which is vulnerable to choke if such care is not imparted.

4. Correct head size should be opted based on the steel reinforcement and form work dimensions. For example, using a 25mm head size in a heavy duty raft foundation would lead put extra pressure on the unit and cause breakage.
5. Proper cleaning should be done with water so there are no concrete elements on the head or hose pipe of the concrete vibrator.