Slip Form Paver – Types & Benefits of SlipForm Paving Technology

Slip Form Paver – Unique Technology Machines

The slipform paving is a concrete molding process where concrete is dispensed into a continuously moving mold to attain the required shape or design. This technology is applied in heavy constructions such as roads, bridges and heavy buildings. The main advantage of this technology is the creation of a continuous, “cast in Place” and almost flawless structure that has superior performance over other methods such as molds and discrete blocks.

Slip Form PaverOther Benefits of Slipform Paving

  • They are fast, reliable and produce a much better looking surface that is equally strong.
  • Precise construction is achieved,
  • Reduction in the cost of construction due to high mechanization

Types of slip form pavers Available

Various types of slip form pavers are available in the market depending on the output specifications of each model. Manufacturers of these equipments also classify their machines based on the individual features unique to the equipment. Some of the different functions of these equipments may include;

  • Pavers able to perform convectional paving, offset paving, and custom applications
  • Able to perform automatic width adjustments withoutunnecessary adjustments
  • Half width pavers designed for construction of busy streets and smaller roads with limited supply of concrete, these are also used where larger machines cannot be used.
  • Heavy duty pavers used to recarpet massive projects such as highways, airports, and other heavy jobs. These are sturdily built to create pavements of up to 50cm thick.
  • The slip form pavers may also be specially designed to manufacture continuous kerbs that are strong and appealing.

Technology Involved In Manufacturing Slip Form Pavers

The slip form paving technology is based on the rapid setting properties of concrete material. The technology works on a balance between the quick settings of the concrete and remains workable enough to be molded into the form. This balance is crucial to ensure the final structure is strong and durable.

How the Slip Form Paver Works

The concrete used in this system of paving is very similar to that used in convectional paving systems. It must have a good and uniform consistency having a slump of approximately two inches. This concrete is deposited into the hopper box from where the machine evenly distributes the material across the paving surface. The paver machine helps in achievement of a homogenousmix and compaction through a system of hydraulic or electric vibrators, while the mold helps in forming the slab to the desired thickness and width.

Demandof Slip Form Pavers

The global demand for slip form paving technology continues to increase as more and more pavement roads are required. The market for concrete paving machines is seen to be growing at a rate of 15-20% every year and industry analysts fore see a more rapid growth by the end of year 2017.This is boosted by increasing road networks in various countries ,time bound projects requiring very high efficiency and expansion projects of airports,and residential areas. In India, the government’s plan to construct over 20 kilometers per day of road has created a sufficient demand-pull for these equipments. Some of the global leaders in slipform paver manufacturing includes Apollo Inffratech.

Important Concrete Production Equipments – The Foundation of Concrete Technology

The construction equipment industry has rapidly developed in innovation over the last few years. The turn of the millennium marked the crossroad where existing technology appeared to have reached the climax, and newer operational concepts had started taking shape. The advances in technologies have also been prompted by the need to enhance efficiency and reduction in environmental emissions, which impacted heavily on the engine designs. New and more well engineered designs have achieved much more performance and functions than would have been conceived a decade ago.

Some of the greatest developments discussed here include-

Slip form Paver

Slip form paving is among the recent and now widely accepted technologies in infrastructure development. The slip form paver is an equipment that can perform several tasks such as;

  • finish grading
  • disperse concrete on the sub grade
  • Vibration
  • Concrete shaping
  • Trim surface to the desired thickness
  • Create surface uniformity

Slip form paving

The equipment uses concrete of a similar grade to that used in convectional paving systems. It must have the same consistency and uniform slump of approximately two inches. The prepared mix is fed into the hopper box or deposited in front of the machine. The material goes through the vibrators, tampers and oscillators after which it is extruded through a metering system extending the width of the surface to achieve a uniform surface conformation.

The slip form paver is equipped with a modern control system that has increased the machine efficiency of operation. The equipment has intelligent electronic controls for precise driving and concrete processing system to achieve high precision in paving.

Concrete Batching Plant

This machine is one of the most important equipments in the construction industry. The final strength, consistency and durability of concrete is dependent on the efficiency of the batching plant. The machine is equipped with an advanced and computer aided operation system which regulates the weights of aggregate, sand, cement, additives and water. The machine also regulates the mixing time for each recipe depending on the requirements of the concrete.

concrete batching plant

The concrete batching plants operate in two categories, which are the ready mix concretes and the central mix batching plant.

The introduction of computer aided batching processes has been one of the greatest advancements in concrete processing. It means that material mixing can easily be altered to changing requirements, and modified to achieve greater throughput, while reducing the operation cost.

Block Making Machine

These equipments come in various models depending on the type of blocks desired. The machine lays blocks with high efficiency and low on maintenance, therefore delivers quick and easy blocks production.

Block Making Machine

It has eliminated the need for wooden and steel pallets, the mould and the Ram mechanism are hydraulic operated and achieves stronger blocks with less cement usage. These modifications have enables consistent in quality and size of blocks. The block making machine is able to achieve pressures of up to 2000 Psi for maximum compaction. The equipment has advanced vibrators that also enhance the compaction of the equipment.

Efficient Construction Equipments for Successful Concrete Handling

Concrete Mixture Plant

The concrete mixer plant combines various ingredients to form the final concrete. The mixture components include sand, water, aggregate, cement and fly ash. A good batching plant must be able to produce high quality mixture as well as meet the production capacity requirements. Some of the main considerations in design of the concrete plant include;

  • Ability to fit in with the existing infrastructure
  • Considerations for future expansion and increased capacity
  • Stability and durability of the plant
  • Aesthetic design and workmanship
  • Ability to achieve homogeneous mixture at a shorter time period
  • Ability to have an efficient loading and unloading process
  • Control of dust

construction equipmentsThe mixing plant is central to concrete production. There are the wet mixing plants and the dry batching plant. The wet batching plant has greater advantages than the dry batching plant such as:

  • Ability to deliver consistent quality
  • They have higher production capacity
  • Faster loading and unloading
  • Greater durability and lower maintenance costs
  • Cleaner trucks and environment

Concrete Transit Mixer

The concrete transit mixer is designed in such a way that the mixing operation continues while the concrete is in transit. This allows greater timesavings from mixing to usage. Some important features of design include;

The driving system is highly durable, and is able to withstand long running hours during transit.

User friendliness, easier to operate and maximum discharge of cement is required to avoid wastage of material.

Smooth rotation is critical to operation. All the rotating parts of the machine are well lubricated for efficiency of mixing.

Micro filtration systems are also included for protection of the motor and the hydraulic system to ensure these are adequately protected.

Self-Loading Mixer

The self loading mixer is designed with a special mechanism to load the concrete mix components to the main mixer for batching to occur. The salient features include;

  • it Self loads the required aggregate and sand into the drum
  • Weighs the materials as per the required quantities
  • Continues mixing while proceeding to the site
  • Will easily discharge the mix to the site

Other innovative features include

  • Tight turning circle: This feature enables equipment make small turning radius and can operate in confined places easily.
  • Swivelable operator position; this feature enables the operator have good visibility during driving, turning and pouring.
  • High Gradeability; Enhances the machines ability to work and move in very rough and tough site conditions
  • Hydraulic steering system which allows for easy maneuvering in narrow and constricted places.

Slip Form Paver 

Slip Form Paver is a highly innovative equipment used in paving, to consolidate, shape and finish a mass of concrete. The main features of this equipment include high production ability, versatile, quality material of construction and it has been proven to have high efficiency. The machine has also been developed in consideration of all the important safety features.

Conclusion

Successful construction is dependent on the quality of equipments applied. Technological advancements in the concrete making and construction sector have been the main contributor to efficiency in construction.

What are the Advantages of Doing Slipform Paving

The slip form paving technology is one of the advanced forms of technology that is used for the purpose of paving construction works. The construction materials (PCC) are continuously prepared and poured over the paving surface and the leveling is done simultaneously. The pulling is done constantly to help in the consolidation process. The Slipform Pavers are the machines that are used for this type of topping. There are several advantages achieved by availing this form of paving. Take a look at the major benefits of selecting this type of surfacing.

Best Precision is available: When this machinery is used, the precision levels of the surfacing are very high. The conventional forms of topping cannot be error-free. There may be defects such as undulations. The defects can be minimized the most if this form of surfacing technology is adopted. The Slipform Pavers are used for the surfacing of the best quality roads.

SlipForm Paver in India

Low Slump PCC is used: This type of technology always makes use of low slump PCC. This means that the water content in the PCC mixture is the minimum. The concrete settles down faster than the traditional form of surfacing. The strength of these paving is found to be more. The roads which need to be built very fast always use this technology.

Reduction in Labor Costs: The entire operations are mechanized. The use of manual labor is nearly done away with. This eliminates the high labor costs that are involved in the traditional form of paving. The job is entirely carried out by the machines. Only a single machine can carry out the jobs of many labors at a time. Chances of chaos due to excessive labor are also curtailed.

Slipform Pavers are used for best quality roads

Best for Large area of Paving: Many a time, a large stretch of area needs to be paved or metaled. These machines are the most suitable to use during this period. The conventional method of topping would take longer for the job. There is also an uniformity in the paving process. This is possible only because the entire operation is mechanized. Manual jobs are not involved.

It is a Faster Process: The entire process can be done faster than the traditional surfacing. When roads and pavements are to be constructed, this technology helps in opening up these places for public use at the earliest. You cannot afford to keep these places unusable for long. Otherwise, a huge amount of inconvenience is caused to the common people. The consolidation of the laid materials also takes place faster. If a double layering needs to be done, this is the best option that should be exercised.

It Creates Better Looks: If you want the topping to look good free from defects, this is the method that you must adopt. No other type of surfacing can give a neater appearance. The major roads should always be paved in this manner.

These are the main advantages of implementing this type of surfacing. It may be expensive but is always the best form of paving.

SlipForm Pavers – Best Way to Accelerate Construction

In most of the construction sites slipform pavers technique is used for better and faster production results. There are lots of advantages in using a slip form techniques over fixed form technique in paving. It is the best way to accelerate large construction work requiring a very high rate of production. It is used to consolidate and give proper geometric shape to plain cement concrete by constantly pulling the mass. Apart from a perfect geometric finish, there are other advantages obtained through this process. It saves a lot of time and manpower to give a high quality and smooth pavement at lower cost.

8-16H - SlipForm Paver

Reduce Construction Time

The high rate of production reduces a considerable amount of time in construction. This process has enabled paving engineers and contractors to pave a larger area with less manpower. Also, the use of low slump PCC enables in faster consolidation of the mass as soon as the paver passes over. This is an added advantage as the low slump PCC has higher flexural and strengthening capability than the higher ones. The speed of production is increased in this way and helps in faster completion of a project and result in more profitability.

10-17 - SlipForm Paver

Lower Manpower Required

The use of slipform paver has also reduced the size of paving crew considerably. This results in lower production cost as well. It is seen that this device can do jobs of twenty to thirty people at a time. This huge number of labour can be saved as the machine itself does the job of from setting and moving crew to that of the form finishing crew. All these jobs are done at the same time resulting in their elimination of such a large number of crew. As consolidation and pulling is done effectively, only a fewer number of crew are required to repair the tears or any other minor surface imperfections.

10-17 - SlipForm Paver

Less Equipment Required

Use of this machine has also enabled the engineers to finish a project with less equipment as compared to other conventional techniques followed for paving a riding surface. This results in less capital requirement and hence increasing profitability once again. Moreover, use of this machine also eliminates side forms and the manpower required to set as well as remove those. So, it can be said that a single machine can save the cost of material, labour as well as supervision of the entire construction work.

Job Management Simplified

Management of job becomes easy when slipform paving technique is used. Less equipment means there is no loss of time in onsite repair and maintenance of equipment. Lower manpower means there will be fewer problems in man power management due to less union difficulties, especially in highly unionized places. The shorter working space and period results in effective management and control of issues. Other advantages enjoyed are contractors have less waste of raw materials, resulting in a smooth and perfect riding surface with minimum hand work required. With such extensive use, no wonder such technique is used for durable, smooth and cost effective production.