1. About Organisation-
• Simplex infrastructure Ltd. is a diversified company established in 1924
and executing projects in several sectors like
• Transport, energy & power,mining, buildings, marine, real estate etc.
• Simplex is one of the construction leaders in India for nearly 90 years
executing projects with consistent quality assurance ,cost control and
adherence to milestones in a safe environment as per the customer
requirements. It promotes the culture of sharing rich and varied
experience with staff members ,as also with clients and thereby
benefits and helps the growth of the construction fraternity and
society at large.
• The company has been closely associated with the country
infrastructure buildings with over 2600 completed projects spanning
almost all the gamut construction industry.
2. Name of block No. Of floor in each
block
No. Of flat on each floor No. Of column in each
block
Plinth beam top level
(M)
BLOCK A(NO.1) G+10 THREE 52 99.000
BLOCK B (NO.2) G+10 TWO 39 99.500
BLOCK C (NO.3) G+10 TWO 36 99.500
BLOCK D (NO.4) G+11 FOUR 61 99.500
BLOCK E (NO.5) G+11 FOUR 65 100.000
BLOCK F ( NO.6) G+10 TWO 33 100.000
BLOCK G (NO.7) G+10 TWO 46 100.000
Total no. Of block-7
Total no. Of flat- 198
3. PRODUCTION OF CONCERETE
PRODUCTION PROCESS-
RAW MATERIALS –
Cement-PPC(Portland pozzolana cement) is using in this
project because it produces less heat of hydration and offers
greater resistance to the attack of aggressive water than
ordinary Portland cement.
4. Aggregate-
1. Coarse aggregate-20mm and 10mm size coarse aggregate are
using in concrete.
2. Fine aggregate –sand is used as fine aggregate which is finer than
4.75mm sieve size and grade of sand is well.
Water - Water used for mixing and curing should be clean and free
from injurious amounts of oils, acids, alkalis, salts, sugar, organic
materials or other substances that may be deleterious to concrete or
steel. Portable water is generally considered satisfactory for mixing
concrete.
Admixtures – SNF (sulphonated naphthalene-formaldehyde
condensates) is used as admixture. It is superplasticizer admixtures
which increases settling time of concrete and workability.
5. BATCHING AND MIXING –
• Weigh batching is using in batching
plant for making concrete. It produces
0.50 M3 concrete in one batch.
• Mixing is essential for the production
of uniform concrete. The mixing should
ensure that the mass becomes
homogeneous, uniform in colour and
consistency.
• Mixing time is 25 sec for each batch.
Placing of concrete in column
6. COMPACTION–
Compaction of concrete is the process adopted for expelling the
entrapped air from the concrete .If the air is not removed fully,the
concrete loses strength considerably.60mm needle vibrator of 1.5kv or
3kv is using at site for compaction of concrete in column and surface
vibrator is using for compaction of concrete in slab.
7. CURING-
The curing can be considered as creation of a favourable environment
during the early period for uninterrupted hydration. Water curing is
using for slabs, beams , masonry work and membrane curing or curing
compound is using for curing of columns and outer face of beams for
conservation of water.
9. Testing for brick
Dimension Test- A set of twenty brick are laying in a raw
then measure it’s length ,width and height one by one
and brick is okay if the avg. dimension of one brick is
230x110x75mm.
Efflorescence Test-In this, brick is submersed in 1” water
for 48 hours and brick is said to be okay if efflorescence
is less than 50% of total surface.
10. Testing for cement –
Field testing-
• Open the bag and there should not be any visible lumps.
• The colour of the cement should normally be greenish grey.
• Take a pinch of cement and feel between the fingers. It
should give a smooth and not a gitty feeling.
• Take a handful of cement and throw it on a bucket full of
water,the particle should float for some time before they
sink.
11. Testing of Coarse Aggregate –
Toughness test or impact value test for 10mm aggregate-
The aggregate impact value gives relative measure of the resistance of
an aggregate to sudden shock or impact. The test sample consists of
aggregate passing through 12.5mm and retained on 10mm I.S. sieve.
Then the aggregate dried in an oven for a period of four hours at a
temperature of 100oC and cooled. The whole sample is filled into a
cylindrical steel cup firmly fixed on the base of the machine. A hammer
weighing about 14 kg is raise about to a height of 380mm above the
upper surface of the aggregate in the cup and allowed to fall freely on
the aggregate. Then the test sample subjected to a total 15 such blows
each being delivered at an interval of not less than one second. The
crushed aggregate is removed from the cup and whole of it is sieved on
2.36mm I.S.sieve. 3
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12. BRICK MASONRY – It is using in
partition wall of flat in this project.
Layout out of brick masonry is
occurring with the help of thread
and plumb bob. Between two brick
layer we are providing 10 to 12 mm
cement mortar (1:6).According to
my calculation for masonry work
electrical substation, there is 383
bricks and thickness of mortar is
16mm in 1 m3 work And in
partition wall of block 4 ,there is
415 bricks in 1m3 and 10mm
mortar.
13. WALL FINISHING- For wall finishing
we provided 12mm thick cement
mortar layer and 2-3mm pop layer.
For strong bonding and strong
cohesion we used cement slurry
before plastering. Skill labour require
for plastering. For plastering finishing
we used planner of different -2 sizes
6ft,8ft and c/s is 70x40mm.
FLOOR FINISHING- for floor finishing we provided 40mm mortar (1:5) and 10mm
thick tiles. Digital glazed vitrified tiles are using in the project. The size of tile is
800x800mm.
SKIRTING -tiles are provided at the bottom of the wall is known as skirting.
100mm skirting are providing in this project.
14. TRAP –is a device which is
used to prevent sewer gases
from entering the building.
The traps are located below
or within a plumbing fixture
and retain some amount of
water. The retaining water
creates a water seal which
stops foul gases going back
to the building from drain
pipes. Therefore all
plumbing fixtures such as
sinks, washbasin, bathtubs
and toilets are equipped
with traps.
P-TRAP
Q-TRAP
15. CONCLUSION
The main aim of studies within this project was to investigate how a structure is constructed
within its desired properties. We get knowledge about the basic & advanced techniques
of building construction as well as saw the challenges which a civil engineer have to face
during construction i.e. labour problems, cost management, environmental challenges etc. We
cleared our many doubts regarding building construction. We had seen dewatering system at
project site for construction which is not used at our state anymore, so it was a new thing for
us.
Although are subjects more important for technicians, in the project we have been Studied
some mechanic or electro-mechanic machinery such as the ready mix plant because basic
knowledge about their working is important for an engineer but also because was the
opportunity to see and understand them. Overhaul it must be said that the construction
methods and quality control on a highway Project needs a very good coordination and
large quantities of man power, equipment and funds.
During the period of two month all the company staff helped us a lot to provide all the
information about any query. So we are grateful to all the staff of Simplex Infrastructures ltd. ,
as well as we are so thankful to our Civil Engineering Department for their kind support.
