Machinery for any type Construction work
Excavators / JCB are heavy construction equipment consisting of a boom, stick, bucket and cab on a rotating platform known as the "house" The house sits atop an undercarriage with tacks or wheels . A cable-operated excavator uses winches and steel ropes to accomplish the movements. They are a natural progression from the steam shovels and often called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of Hydraulic fluid, with hydraulic cylinders, and hydraulic motors Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators If you have need for Excavators / JCB for any type of work or for hire call... us
A road roller (sometimes called a roller-compactor or just roller) is a compactor type Engineering vehicle used to compact soil, gravel, concrete or asphalt in construction of road and foundations, similar rollers are used also at landfills or in agriculture.
In some parts of the world, road rollers are still known colloquially as steam rollers, regardless of their method of propulsion. This typically only applies to the largest examples (used for road-making). If you have need for Road roller for any type of work or for hire call... us
In some parts of the world, road rollers are still known colloquially as steam rollers, regardless of their method of propulsion. This typically only applies to the largest examples (used for road-making). If you have need for Road roller for any type of work or for hire call... us
Tipper / dump truck is a truck used for transporting loose material (such as sand, gravel, Or any type of building materiel for any type construction A typical dump truck is equipped with an open-box bed, which is hinged at the rear and equipped with hydraulic Pistons to lift the front, allowing the material in the bed to be deposited ("dumped") on the ground behind the truck at the site of delivery. In the India the term applies to off-road or building construction, and the road vehicle is known as a tipper, tipper lorry if you have need for tipper truck for any type of work or for hire call.. us
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Concrete Mixer Transportation /
Concrete Mixer Trailer
Transportation of concrete is an important activity in the production of concrete. The time taken in transit should be a design parameter as it depends on the initial setting time as well as the requirement of workability at the destination. The method of transportation adopted at site should be decided in advance so that suitable admixtures can be decided. The various prevalent methods of transportation are as given below
Mortar pan:- It is a labour intensive method and generally used for small works. There are no chances of segregation of concrete In hot weather, there is a substantial loss of water due to more exposure of concrete to environment.
Wheel barrow or hand cart:- It is normally used on ground level i.e. road construction and other similar structures. Segregation can occur if transportation is done on rough roads, however this problem can be minimizes if pneumatic tyre`s are used.
Bucket and Rope way:- It is suitable for works in valley, over high piers and long dam sites. Excessive free fall of concrete should be avoided to minimize segregation
Truck Mixer and Dumper :- It is an improved and better method for long lead concreting. The concrete is covered with tarpaulin if it is transported in open trucks. If long distance is involved, agitators should be used.
Belt Conveyor:- It has limited application due to chances of segregation on steep slopes, roller points and changes in direction of belt. It also involves over-exposure of concrete to environment.
Chute :- It is generally used for concreting in deep locations. Care should be taken that slope should not be flatter than 1V:2.5H, otherwise concrete will not slide down. But workability should not be changed to suit the delivery by chute. Technically it is not a very good method but it is extensively used in the field.
Skip and Hoist:- It is a widely used method for high rise structures. Concrete is fed into the skip which travels vertically on rails like a lift. After discharging, it is better to turn over the concrete before use to avoid segregation.
Pump and Pipe- Line Method:- It is the most sophisticated method particularly suitable for limited space or when a large quantity of concrete is to be poured without cold joints. Pumping of concrete can be done @ 8 to 70 cubic meters per hour up to a horizontal distance of 300 meter and vertical distance of 90 meter. Pipe dia is generally 8 to 20 cm and it is made of steel., plastic or aluminum. The workability for pumped concrete should have a minimum of 40 to 100 mm of slump or 0.90 to 0.95 compacting factor. At delivery point the workability may be reduced by 25% due to compaction and this factor should be kept in mind while designing the mix.
Transit mixer:- Transit mixer is one of the most popular equipment for transporting concrete over a long distance particularly in ready mix concrete plant. They are truck mounted having a capacity of 4 to 7 cubic meter. There are two variations. In one, mixed concrete is transported to the site by keeping it agitated all along at a speed varying between 2 to 6 revolutions per minute. In other category, the concrete is batched at the central batching plant and mixing is done in the truck mixer either in transit or immediately prior to discharging concrete at site.
Concrete Mixer Trailer
Transportation of concrete is an important activity in the production of concrete. The time taken in transit should be a design parameter as it depends on the initial setting time as well as the requirement of workability at the destination. The method of transportation adopted at site should be decided in advance so that suitable admixtures can be decided. The various prevalent methods of transportation are as given below
Mortar pan:- It is a labour intensive method and generally used for small works. There are no chances of segregation of concrete In hot weather, there is a substantial loss of water due to more exposure of concrete to environment.
Wheel barrow or hand cart:- It is normally used on ground level i.e. road construction and other similar structures. Segregation can occur if transportation is done on rough roads, however this problem can be minimizes if pneumatic tyre`s are used.
Bucket and Rope way:- It is suitable for works in valley, over high piers and long dam sites. Excessive free fall of concrete should be avoided to minimize segregation
Truck Mixer and Dumper :- It is an improved and better method for long lead concreting. The concrete is covered with tarpaulin if it is transported in open trucks. If long distance is involved, agitators should be used.
Belt Conveyor:- It has limited application due to chances of segregation on steep slopes, roller points and changes in direction of belt. It also involves over-exposure of concrete to environment.
Chute :- It is generally used for concreting in deep locations. Care should be taken that slope should not be flatter than 1V:2.5H, otherwise concrete will not slide down. But workability should not be changed to suit the delivery by chute. Technically it is not a very good method but it is extensively used in the field.
Skip and Hoist:- It is a widely used method for high rise structures. Concrete is fed into the skip which travels vertically on rails like a lift. After discharging, it is better to turn over the concrete before use to avoid segregation.
Pump and Pipe- Line Method:- It is the most sophisticated method particularly suitable for limited space or when a large quantity of concrete is to be poured without cold joints. Pumping of concrete can be done @ 8 to 70 cubic meters per hour up to a horizontal distance of 300 meter and vertical distance of 90 meter. Pipe dia is generally 8 to 20 cm and it is made of steel., plastic or aluminum. The workability for pumped concrete should have a minimum of 40 to 100 mm of slump or 0.90 to 0.95 compacting factor. At delivery point the workability may be reduced by 25% due to compaction and this factor should be kept in mind while designing the mix.
Transit mixer:- Transit mixer is one of the most popular equipment for transporting concrete over a long distance particularly in ready mix concrete plant. They are truck mounted having a capacity of 4 to 7 cubic meter. There are two variations. In one, mixed concrete is transported to the site by keeping it agitated all along at a speed varying between 2 to 6 revolutions per minute. In other category, the concrete is batched at the central batching plant and mixing is done in the truck mixer either in transit or immediately prior to discharging concrete at site.
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[Maharashtra] India |
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