AN INDUSTRIAL TRAINING REPORT ON BUILDING CONSTRUCTION
Done by
SHAMIM RAJA
ZAHIRUL MALITYA
MD. ADIM
ABU KHALID
MABUD SARKAR
RAMIJ RAJA MOMIN
At
Wadia Techno Engineering Ltd.
16, Mahanirban Road
Kolkata-700 029
Submitted to
Department of Civil Engineering
Faculty of Engineering and Technology
Aliah University
(A UGC approved autonomous Institution)
Action area II, New Town, Rajarhat
Kolkata-700 106
June 2015
Acknowledgement
It is always a pleasure to remind the fine people in the Engineering program for their sincere guidance I received to uphold my practical as well as theoretical skills in engineering.
Firstly I would like to thank Prof. Abdul Motin (T.P.0. of Aliah University) for encouraging us to do this training under Wadia Techno Engineering Ltd.
I would also like to thanks Prof. Jafar Sadak Ali (Teacher in charge) for positive attitude he showed for our work, allowing us to question him and giving prompt replies for my uncertainties in all fields including educational, social and managerial work.
I express my immense pleasure and deep sense of attitude to Mr. Asish Paul and Mr. Arindam Ghosh and all site engineers for spending their valuable time with us and also helped us in completion of training.
Finally, I would like to thanks Biswarup Bhattacharya for giving us this opportunity.
CHAPTER 1
INTRODUCTION
We have been assigned Aliah University Hostel Campus construction sites for field study by the company. This is a part of Aliah University, project located in Action area II, New Town, Rajarhat Kolkata-700 106 .This hostel project is a premium multi storey institutional building developed by HRBC.
The construction of the structures has been assigned to Bill Infrastructure Ltd.
The building Architectural designer and structural consultants is Wadia Techno Engineering Ltd.
About Implementing Authority:
Hooghly River Bridge Commissioners (HRBC), a statutory organization now under the Transport Department, Govt. Of West Bengal, was established in 1969 for construction of Vidyasagar Setu. This engineering marvel over the river Hooghly which was inaugurated in 1992 is the longest cable-stayed bridge in the country. By overseeing the construction process of the intricate infrastructure project HRBC has acquired expertise in managing projects of bridge and highway whatever may be its magnitude.
Today HRBC stands for on-time completion of complex engineering projects of exacting standard in the busiest of urban locale.
About Contractor:
Binani Industries Ltd. is a fast growing, multidimensional business conglomerate with sales, manufacturing, and R&D operations spread in Asia, Europe, Middle East and North America. Its diversified businesses deliver products and solutions in the areas of cement, zinc, glass fibre and related composites, energy and industrial infrastructure.
The Braj Binani Group has boldly embraced path-breaking initiatives growing organically and through acquisition to deliver accelerated business results on multiple fronts. As a result today, Binani Industries is a significant contributor to India’s industrial growth. Yet, this focus on business growth does not detract from a very high level of commitment to important corporate social responsibility issues such as the environment, health, education and other community issues.
Binani Industries Ltd. initiatives focus on both business growth and corporate social responsibility
CHAPTER
DETAILS OF THE PROJECT
2.1 SITE LOCATION:
The HRBC upscale project,Located off New Town, Rajarhat, in a Developing area replete with the best of social infrastructure, the project is accessible from Eeo-Space, to major corporates like Infosys, Wipro, TCS and the country’s best educational institutions including DPS, in addition to large Multispecialty hospitals such as Tata medical.
2.2 PROJECT OVERVIEW:
Name of the project- Aliah University Boys’ and Girls’ Hostel
Area of total project- 20 acres
Project duration-18 months
Client- Aliah University
Implementing Authority- HRBC
Consultants- Wadia Techno Engineering Ltd.
Contractor- Bill Infratech Ltd.
CHAPTER 3
DETAILS OF FIELD STUDY
3.1 DETAILS OF STRUCTURE:
1. The height of the structure are 64.8 mts and 45.9 mts for Boys’ and Girls’ hstel respectively.
2. The structure consists of 2 buildings.
3. Two buildings are separated by a service road.
4. Boys’ hostel consist of G+19 and Girls hostel consist of G+13 floors.
5. Apart from the 27 floors there are 2 subsurface floors designed for parking purpose.
6. Each buildings consists of 5 lift wells and 3 stair cases
3.2 EARTH FILLING:
Earth filling under floors should be done in layers not more than 6" in thickness. The layer should be compacted properly. Further, the earth used for filling should be free from grass, roots, leaves and other foreign material. It should be also slightly moist which will help to achieve optimum compaction.
The procedure suggested by your contractor is not correct, as it does not guarantee uniform compaction of earth throughout the filling. Please note any loose pockets of earth filling would eventually settle. This settlement would result in formation of cracks on the floor surface
3.3 Anti Termite Treatment:
Anti Termite Treatment shall be as per IS-6313(Part-ll) with a guarantee period of 10 years and shall be carried out by an approved specialist agency.
Materials concentration- Chloropyriphos of 20% as per IS- 8944-1978.
Pre-Construction Chemical Treatment- Hand operated pressure pump shall be used for uniform spraying of the chemical.
Treatment of Top Surface of Plinth Filling- Plinth walls shall be treated with chemical emulsion at the rate of 5 litter per square meter of the surface before the sand subgrade is laid. Holes upto 50-75mm deep at 150mm centers both ways shall be made with crow bars 12mm diameter.
3.4 PROCESS OF LAYING A SLAB:
In this all the sophisticated equipments are used to finish the work in easy and simple method. The thickness of each slab is 20cm and between 2 wings a strip is not casted immediately but casted after 25 days known as Expansion strip. The steel rods used in construction are THERMAX STEEL from Germany.
Also shaft spaces are provided in slab for plumbing work
views of shafts on and below the surface of the slab
describes work of electrical conduting and cup locks support
After framing using shutter boards filmed with shuttering oil, electrical conduting will be done, here cup locks are used to support the frame, and then concrete is poured over the frame with the help of hydraulic jack and concrete pipes which are used to pump the concrete from transit mixer to the place where slab has to be laid. To prevent coagulation inside pipes, first a cream slurry cement paste has to be passed through pipes for smooth flow of concrete
Tower cranes are used to move the required material from one place to other in site both vertically and horizontally. The tower cranes can with held the wind force up to height of 30m, beyond which they need to be clamped to nearby column of building for support.Each building crane costs about Rs.95 lakhs
view of the tower crane
3.5 BATCHING PLANT:
M50 concrete mix is used here for the construction of structure. A separate batching plant is present near the site.
batching plant with a transit mixer
describes the control panel and closer look to batching plant respectively.
A Transit mixer is used to transfer concrete from batching plant to the work site.It carries around 7cubic mtr volume of concrete and takes about 15 min to load.
The main components of batching plant are
· Control panel
· Silos
· Cement storage godown
· Small tower crane for pushing ingredients into mix using trayThe batching plant consists of silos which are used to store flyash and chemicals accelerators and retarders.
M15
M20
M25
M30
M35
M40
KG
KG
KG
KG
KG
KG
CA I
564
538
534
526
521
494
CA II
664
576
572
564
558
529
FA II
725
738
727
710
697
636
CEMENT
256
284
304
326
351
433
FLY ASH
76
82
88
94
101
126
WATER
180
180
175
180
170
180
CH. ADMIX
.8-1.2 %
.8-1.2%
.8-1.2%
.8-1.2%
.8-1.2%
.8-1.2%
W/B RATIO
.54
.49
.44
.42
.37
.32
Table 3.1 A Table describing Mix Design Per Cubic Meter for various mix designs
The ingredients used in preparation of concrete are coarse aggregate I, II and fine aggregate (pit sand, dead river sand),cement, fly ash, water ,chemical admixtures .The W/B Ratio of M40 Mix is 0.32
The chemical admixtures used are MYK Save mix SP
3.6 Q/A & Q/C LAB (Quality assurance &quality control lab):
In this lab the quality and strength of various building materials like cement, sand, concrete, water, coarse aggregate are tested using various testing machines and apparatus like
· vicat apparatus,
· Compression testing machine
· flakiness and elongation index gauges,
· volume measuring jars
· digital weighing scale(20kg max. and 2gm accuracy)
· sample collecting trays
· pycnometer
Describes view of QA/QC lab and frame work for concrete cubes for testing respectively.
describes the view of curing tank near qa/qc lab
3.7 LAYING OF COLUMNS:
represents view of various columns from below ground surface
describes frame work for column concreting and tor rings respectively.
Columns are laid under utmost care. steel rods are firmly placed and these are connected using different types of TOR RINGS with the help of binding wire. About 8 Tor rings are provided at spacing in every column. Basically tor rings are of different types like rectangular, square type, triangular, trapezoidal used for connecting various amount of steel rods.tie rod, ropes are used to place the shutters firmly around the column where the concrete is to be laid. Once the shutter is firmly placed then the concrete is filled manually till 0.5 mtr in order to avoid HONEY COMBING. M50 grade concrete is used for laying columns. The date on which concreting is done to a column is written on column so that care has to be taken to cure it for 14 days
Figure3.18 the checklist for column concreting
Prior to concreting of a column it should fulfil all the requirements of the checklist for the column concreting ,it checks all the activities and should meet the acceptance criteria after checking the report will be signed by Foreman, Site engineer and Sector engineer before giving a nod to concreting
3.8 AMENITIES PROVIDED IN HOSTEL CAMPUS:
· 100% Power Backup
· Boys’ play ground
· Marble flooring
· Tree lined avenues and decorative iron railings set on natural stone compound wall.
· Grand entrance hall and well decorated corridors on all lift lobbies.
· High speed automatic lifts.
· Ample parking space.
· Modern fire fighting system.
· CCTV in entrance lobbies for security.
· Retail shopping.
· Hostel Canteen.
3.9 SAFETY:
The company has observed various safety norms as per ISO standards and A safety office is present in the construction site. Various safety measures have been taken as shown below
represents the view of safety nets tied around the building edges
CHAPTER 4
CONCLUSIONS
Civil engineers have a very important role in today’s society. They are the people behind the scenes of construction jobs which result in important buildings and structures throughout one’s city or hometown. They ensure not only that the buildings are constructed in a proper fashion but an expedient one as well. Should problems arise, they are the ones who step in to take control and come up with possible solutions. If one is interested in pursuing a profession as a civil engineer, the previously mentioned items may provide one with the information they need to make a career decision one way or the other.
Done by
SHAMIM RAJA
ZAHIRUL MALITYA
MD. ADIM
ABU KHALID
MABUD SARKAR
RAMIJ RAJA MOMIN
At
Wadia Techno Engineering Ltd.
16, Mahanirban Road
Kolkata-700 029
Submitted to
Department of Civil Engineering
Faculty of Engineering and Technology
Aliah University
(A UGC approved autonomous Institution)
Action area II, New Town, Rajarhat
Kolkata-700 106
June 2015
Acknowledgement
It is always a pleasure to remind the fine people in the Engineering program for their sincere guidance I received to uphold my practical as well as theoretical skills in engineering.
Firstly I would like to thank Prof. Abdul Motin (T.P.0. of Aliah University) for encouraging us to do this training under Wadia Techno Engineering Ltd.
I would also like to thanks Prof. Jafar Sadak Ali (Teacher in charge) for positive attitude he showed for our work, allowing us to question him and giving prompt replies for my uncertainties in all fields including educational, social and managerial work.
I express my immense pleasure and deep sense of attitude to Mr. Asish Paul and Mr. Arindam Ghosh and all site engineers for spending their valuable time with us and also helped us in completion of training.
Finally, I would like to thanks Biswarup Bhattacharya for giving us this opportunity.
CHAPTER 1
INTRODUCTION
We have been assigned Aliah University Hostel Campus construction sites for field study by the company. This is a part of Aliah University, project located in Action area II, New Town, Rajarhat Kolkata-700 106 .This hostel project is a premium multi storey institutional building developed by HRBC.
The construction of the structures has been assigned to Bill Infrastructure Ltd.
The building Architectural designer and structural consultants is Wadia Techno Engineering Ltd.
About Implementing Authority:
Hooghly River Bridge Commissioners (HRBC), a statutory organization now under the Transport Department, Govt. Of West Bengal, was established in 1969 for construction of Vidyasagar Setu. This engineering marvel over the river Hooghly which was inaugurated in 1992 is the longest cable-stayed bridge in the country. By overseeing the construction process of the intricate infrastructure project HRBC has acquired expertise in managing projects of bridge and highway whatever may be its magnitude.
Today HRBC stands for on-time completion of complex engineering projects of exacting standard in the busiest of urban locale.
About Contractor:
Binani Industries Ltd. is a fast growing, multidimensional business conglomerate with sales, manufacturing, and R&D operations spread in Asia, Europe, Middle East and North America. Its diversified businesses deliver products and solutions in the areas of cement, zinc, glass fibre and related composites, energy and industrial infrastructure.
The Braj Binani Group has boldly embraced path-breaking initiatives growing organically and through acquisition to deliver accelerated business results on multiple fronts. As a result today, Binani Industries is a significant contributor to India’s industrial growth. Yet, this focus on business growth does not detract from a very high level of commitment to important corporate social responsibility issues such as the environment, health, education and other community issues.
Binani Industries Ltd. initiatives focus on both business growth and corporate social responsibility
CHAPTER
DETAILS OF THE PROJECT
2.1 SITE LOCATION:
The HRBC upscale project,Located off New Town, Rajarhat, in a Developing area replete with the best of social infrastructure, the project is accessible from Eeo-Space, to major corporates like Infosys, Wipro, TCS and the country’s best educational institutions including DPS, in addition to large Multispecialty hospitals such as Tata medical.
2.2 PROJECT OVERVIEW:
Name of the project- Aliah University Boys’ and Girls’ Hostel
Area of total project- 20 acres
Project duration-18 months
Client- Aliah University
Implementing Authority- HRBC
Consultants- Wadia Techno Engineering Ltd.
Contractor- Bill Infratech Ltd.
CHAPTER 3
DETAILS OF FIELD STUDY
3.1 DETAILS OF STRUCTURE:
1. The height of the structure are 64.8 mts and 45.9 mts for Boys’ and Girls’ hstel respectively.
2. The structure consists of 2 buildings.
3. Two buildings are separated by a service road.
4. Boys’ hostel consist of G+19 and Girls hostel consist of G+13 floors.
5. Apart from the 27 floors there are 2 subsurface floors designed for parking purpose.
6. Each buildings consists of 5 lift wells and 3 stair cases
3.2 EARTH FILLING:
Earth filling under floors should be done in layers not more than 6" in thickness. The layer should be compacted properly. Further, the earth used for filling should be free from grass, roots, leaves and other foreign material. It should be also slightly moist which will help to achieve optimum compaction.
The procedure suggested by your contractor is not correct, as it does not guarantee uniform compaction of earth throughout the filling. Please note any loose pockets of earth filling would eventually settle. This settlement would result in formation of cracks on the floor surface
3.3 Anti Termite Treatment:
Anti Termite Treatment shall be as per IS-6313(Part-ll) with a guarantee period of 10 years and shall be carried out by an approved specialist agency.
Materials concentration- Chloropyriphos of 20% as per IS- 8944-1978.
Pre-Construction Chemical Treatment- Hand operated pressure pump shall be used for uniform spraying of the chemical.
Treatment of Top Surface of Plinth Filling- Plinth walls shall be treated with chemical emulsion at the rate of 5 litter per square meter of the surface before the sand subgrade is laid. Holes upto 50-75mm deep at 150mm centers both ways shall be made with crow bars 12mm diameter.
3.4 PROCESS OF LAYING A SLAB:
In this all the sophisticated equipments are used to finish the work in easy and simple method. The thickness of each slab is 20cm and between 2 wings a strip is not casted immediately but casted after 25 days known as Expansion strip. The steel rods used in construction are THERMAX STEEL from Germany.
Also shaft spaces are provided in slab for plumbing work
views of shafts on and below the surface of the slab
describes work of electrical conduting and cup locks support
After framing using shutter boards filmed with shuttering oil, electrical conduting will be done, here cup locks are used to support the frame, and then concrete is poured over the frame with the help of hydraulic jack and concrete pipes which are used to pump the concrete from transit mixer to the place where slab has to be laid. To prevent coagulation inside pipes, first a cream slurry cement paste has to be passed through pipes for smooth flow of concrete
Tower cranes are used to move the required material from one place to other in site both vertically and horizontally. The tower cranes can with held the wind force up to height of 30m, beyond which they need to be clamped to nearby column of building for support.Each building crane costs about Rs.95 lakhs
view of the tower crane
3.5 BATCHING PLANT:
M50 concrete mix is used here for the construction of structure. A separate batching plant is present near the site.
batching plant with a transit mixer
describes the control panel and closer look to batching plant respectively.
A Transit mixer is used to transfer concrete from batching plant to the work site.It carries around 7cubic mtr volume of concrete and takes about 15 min to load.
The main components of batching plant are
· Control panel
· Silos
· Cement storage godown
· Small tower crane for pushing ingredients into mix using trayThe batching plant consists of silos which are used to store flyash and chemicals accelerators and retarders.
M15
M20
M25
M30
M35
M40
KG
KG
KG
KG
KG
KG
CA I
564
538
534
526
521
494
CA II
664
576
572
564
558
529
FA II
725
738
727
710
697
636
CEMENT
256
284
304
326
351
433
FLY ASH
76
82
88
94
101
126
WATER
180
180
175
180
170
180
CH. ADMIX
.8-1.2 %
.8-1.2%
.8-1.2%
.8-1.2%
.8-1.2%
.8-1.2%
W/B RATIO
.54
.49
.44
.42
.37
.32
Table 3.1 A Table describing Mix Design Per Cubic Meter for various mix designs
The ingredients used in preparation of concrete are coarse aggregate I, II and fine aggregate (pit sand, dead river sand),cement, fly ash, water ,chemical admixtures .The W/B Ratio of M40 Mix is 0.32
The chemical admixtures used are MYK Save mix SP
3.6 Q/A & Q/C LAB (Quality assurance &quality control lab):
In this lab the quality and strength of various building materials like cement, sand, concrete, water, coarse aggregate are tested using various testing machines and apparatus like
· vicat apparatus,
· Compression testing machine
· flakiness and elongation index gauges,
· volume measuring jars
· digital weighing scale(20kg max. and 2gm accuracy)
· sample collecting trays
· pycnometer
Describes view of QA/QC lab and frame work for concrete cubes for testing respectively.
describes the view of curing tank near qa/qc lab
3.7 LAYING OF COLUMNS:
represents view of various columns from below ground surface
describes frame work for column concreting and tor rings respectively.
Columns are laid under utmost care. steel rods are firmly placed and these are connected using different types of TOR RINGS with the help of binding wire. About 8 Tor rings are provided at spacing in every column. Basically tor rings are of different types like rectangular, square type, triangular, trapezoidal used for connecting various amount of steel rods.tie rod, ropes are used to place the shutters firmly around the column where the concrete is to be laid. Once the shutter is firmly placed then the concrete is filled manually till 0.5 mtr in order to avoid HONEY COMBING. M50 grade concrete is used for laying columns. The date on which concreting is done to a column is written on column so that care has to be taken to cure it for 14 days
Figure3.18 the checklist for column concreting
Prior to concreting of a column it should fulfil all the requirements of the checklist for the column concreting ,it checks all the activities and should meet the acceptance criteria after checking the report will be signed by Foreman, Site engineer and Sector engineer before giving a nod to concreting
3.8 AMENITIES PROVIDED IN HOSTEL CAMPUS:
· 100% Power Backup
· Boys’ play ground
· Marble flooring
· Tree lined avenues and decorative iron railings set on natural stone compound wall.
· Grand entrance hall and well decorated corridors on all lift lobbies.
· High speed automatic lifts.
· Ample parking space.
· Modern fire fighting system.
· CCTV in entrance lobbies for security.
· Retail shopping.
· Hostel Canteen.
3.9 SAFETY:
The company has observed various safety norms as per ISO standards and A safety office is present in the construction site. Various safety measures have been taken as shown below
represents the view of safety nets tied around the building edges
CHAPTER 4
CONCLUSIONS
Civil engineers have a very important role in today’s society. They are the people behind the scenes of construction jobs which result in important buildings and structures throughout one’s city or hometown. They ensure not only that the buildings are constructed in a proper fashion but an expedient one as well. Should problems arise, they are the ones who step in to take control and come up with possible solutions. If one is interested in pursuing a profession as a civil engineer, the previously mentioned items may provide one with the information they need to make a career decision one way or the other.
Comments