Manufacturing Process/Flow Chart of Stone Crusher Plant

Manufacturing Process/Flow Chart of Stone Crusher Plant

1. The Stone Crusher Plant is used for the production of raw materials of aggregates like 40 mm. 20mm , 10mm, 6 mm , Dust, GSB & Crushed Sand.
2. The Stone Crusher is available in three variants like, Primary Crusher or Jaw Crusher, Secondary Crusher or Cone Crusher and Hybrid Crusher which have arrangement of both primary and secondary.
3. Generally we used the Hybrid Crusher because it have adequate and efficient production.
4. To understand the production process , we may go through the flow chart of stone crusher plant as given below:-

From the above it is clear that boulder get dumped in feeding bunker from there it comes to Jaw Crusher or Primary crusher and after that materials get convey towards cone crusher which is also called secondary crusher.
The material from Crusher get deposited to the screener of variable size screens as per requirement and from there oversized materials again come back towards cone crusher through conveyor belt.
There are different conveyor belts through which materials get stock.

Manufacturing Process/Flow Chart of Wet Mix Macadam Plant

Manufacturing Process/Flow Chart of Wet Mix Macadam 

1. Wet Mix Macadam Plant is used to production WMM materials by using the raw materials like aggregates of different sizes like 40mm, 20mm, 10mm, Dust and sufficient quantity of water.
2. The WMM materials is major items for the construction of flexible pavement.
3. The WMM plants works on the mix design as get feeded to the automatic system which control the valve of hopper as per weight of materials.
4.To better understand the manufacturing process of WMM materials from WMM Plant, we may go through the Flow Chart as given below:-

From the above it is clear that the Raw Materials of 40mm, 20mm, 10mm & Dust get collected in conveyor belt from there it gets collected in Pug Mill , where all materials gets thoroughly mixed with arrangement of water sprinkling as per requirement of mix design.
After getting well mixed the materials finally dispatched to the Hywa from Dispatched Hopper.
The material must be transported immediately to the site.

Manufacturing Process/Flow Chart for Hot Mix Plant

Manufacturing Process/Flow Chart for Hot Mix Plant

1. Hot Mix Plant is used to produced the asphalt for the construction bituminous road/flexible pavement.
2.Hot Mix Plant is also termed as Asphalt Plant.
3. There are several companies who make this kind of plant.
4. The Capacity of Hot Mix Plant varies from 100 TPH to 250 TPH.
5. The  Hot Mix Plant is primary requirement of flexible road construction.
The manufacturing process of Hot Mix Plant can be better understand from flow chart as given below:-

 

 From the above it is clear that the basic raw materials for production of asphalt from Hot Mix Plant  are Coarser Aggregate, Finer Aggregate, Filler Material and Bitumen. The filler material may be used as cement or lime as per availablity.

 Firstly, all the aggregates sent to the Screening Drum, where all the materials distributed in different size as per screen arrangement provided as per design.

From there materials goes to Hot Bin for heating at required temperature, the heating is required so that bitumen may bind together stiffly. After getting heated from there it transfer to the Aggregate Weigher , from here the material sent to the Mixer as per Grade requirement.

At same time Filler Material and Bitumen also sent to Mixer after weight from separate provided weigher arrangment. 

After Mixing all the raw materials get deposited to Hywa and finally transported to the site for laying. 

 

Manufacturing Process/Flow Chart of Concrete Batching Plant

Manufacturing Process/Flow Chart of Concrete Batching Plant 

1. The Concrete Batching Plant is used for production of Concrete from various raw materials like
    coarser aggregates, finer aggregates, cement, admixture & water.
2. There are various manufacturer who make the Concrete Batching Plant.
3. There is availability of several capacity as per requirement but mostly for small scale industry, we used 30 cum/hr -60 cum/hr.
4. There is arrangement of automatic system in which we feed the quantity of raw materials to
    produce the final materials as per required grade of concrete.
5. The final products is of good quality.

To understand the complete manufacturing process , we may go through the flow chart diagram as given below:-

 From the above, it is clear that all the aggregates materials first goes to skip bucket/weighing belt from where its get weighted as per feed data of particular grade and finally its forwarded to Micro Processor based weighing and control system.
At the same time cement comes through Cement Weighing Hopper and weighted as feed data of particular grade and finally it also forwarded to Micro Processor based weighing and control system.
Another arrangement is  also made from where water and admixture as per requirement of grade of concrete.
All the materials finally go to mixture, where all materials get mixed and finally dispatched to Transit mixture from there its get transported to site.

Methodology for Survey & Setting Out

Methodology for Survey & Setting Out

NAME OF ACTIVITY:

SURVEY AND SETTING OUT

DESCRIPTION OF AVTIVITY:

Clearing & Grubbing of  demarked area & disposal of unsuitable material with in the specified areas with all lifts and leads complete as per  MORT&H technical Specifications clause 201 and as per the direction of Employer/NHAI/I.C..

           

SCOPE OF WORK:

This procedure applies for setting out data of Center line to grades as per contract drawings for survey of road works undertaken by the company.

MANPOWER REQUIREMENT

Section In-charge

Site In-charge

Section Engineer

Site Supervisor

MACHINERY REQUIREMENT:

Instruments  appropriate  for  the  intended  setting  out  task  and  according  to  the accuracy requirements will be used. The instruments will be calibrated periodically as per our  calibration  plan  and  will  be  kept  in  good  working  condition. The following instruments will be used for setting out survey works.

·  Precision Automatic level instrument.

·  Total station. (Least count 1 seconds.)

·  Tripods

·   Staff (least count 5mm)

·   30 mtr/ 50 mtr steel or Fiber measuring

ORGANIZATIONAL STRUCTURE:

The Sr. Surveyor shall be the Key Personnel, responsible for the Setting out work.

CROSS REFERENCE:

4.1 Contract Documents / Technical Specification.

4.2 MOST Specification, Clause No: 109

DEFINITION:

HIP:                   Horizontal Intersection Point

VIP:                    Vertical Intersection Point

          LS:                                Longitudinal Section.

CS:                               Cross Section.

SE:                               Super Elevation.

SETTING OUT:

The Engineering method of transferring the plan & elevation from drawings to the field with a firm control of alignment.

GTS BENCH MARK:

Reference point established by Great Trigonometrical Survey of India development.  These have been set up at interval all over the country with very high precision.

PERMANENT / REFERENCE BENCH MARK:

Reference  point  of known  elevation  established  between  the GTS  bench  marks  at closer intervals and the contractor shall obtain its value from the Engineer.

  

BENCH MARK:

It is a fixed reference point of known elevation.

TEMPORORY OR WORKS BENCH MARK (TBM):

Reference points established from permanent BM at convenient location for setting out the pavement structure.

   

GRADES:

Elevation of any point with reference to a specified datum.

 

GRIDLINES:

Imaginary lines running Horizontal & Vertical with each line having a designated northing and easting.

PROCEDURE:

Preparation

1: The Independent Engineer shall verify the drawing provided by the Engineer are approved for construction and are of latest revision.

2: In case, where existing roads are to be widened/ rehabilitated /improved upon, then no objection certificate for the work will be obtained from local Govt. authorities prior to setting out at site.

3: The values of the co-ordinates & elevation of reference or permanent bench mark (BM) will be obtained from the contract drawing or from the Engineer. The correctness of these values will be checked physically at site within a tolerance of ±5mm in line and ± 5mm. In level. BM values as verified will be compared  with values in the contract drawing. Discrepancies, if any, will be brought to the notice of the Engineer. Written approval of the values of BM as checked shall be obtained from the Engineer prior to commencing the work.

 4: The working or Temporary Bench Mark (TBM) will be established at every 200 mtr interval and also  at or near all drainage  structures  and underpasses.  The working benchmark / levels will be approved from the Engineer. Checks will be made on these benchmarks  once every 3months and adjusted  if any,  got agreed with the Engineer  and recorded. An up-to-date record of all TBM including approved adjustment, if any, will be maintained and a copy will be supplied to the Engineer.

Setting Out Works:

1: With reference to the known BM values, the centerline of the proposed road will be located and marked at the existing carriageway, 15mtrs away from the centerline using a total station.

2: All the HIP’s & VIP’s for Horizontal & vertical curves along the alignment will be located and  pegged  at site  in a similar.  As per  the coordinates provided by the Engineer, the traversing will be closed at BM and error, if any will be linearly distributed.

3: Pegging will be done at toe lines at every 20 mtr longitudinal  intervals  of the embankment and in cases of no embankment, 2mtr away from the edge of the proposed road.

4:  The  alignment  as  pegged  will  be  checked  with  respect  to  the  drawing.  Upon conformity of alignment control, Engineer will be required to check and approve the alignment.

Level along & across the alignment:

1:  The existing  ground  levels  will  be  recorded  jointly on a  level book along the horizontal sectioning at 10 mtr. Interval for straight as well as curve portions and along the cross sectioning as per the requirements of the Engineer depending upon the profile of the terrains with reference to the known BM elevation.

    

2: Upon approval of the alignment and existing ground level by the Engineer, road

works will commence for building up pavement layers.