kaba infratech pvt. ltd.€¦ · frost resistance. 4 operating principle of geocrete® distribution...
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KABA Infratech Pvt. Ltd.
www.kabagroup.com
Ensuring Well-Being
ABOUT THE COMPANY
KABA promotes and foster collective growth by strengthening infrastructure of the
nation, vision is to become the most trusted name in integrated infrastructure
development space.
KABA has tie-ups with several international organisations to facilitate deployment of
eco-friendly, economical, feasible, proven, time saving, certified technologies for ®infrastructure development e.g. pre-cast technology for civil construction, GeoCrete
soil stabilisation for roads, railway tracks, airports etc.
KABA is backed by a team of committed professionals striving for excellence all time.
KEY OFFICIALS @ KABA
Mr. Anurag Chaturvedi (Managing Director) a first generation entrepreneur began his
career in 1989 as an accounts guy in a construction concern. He gained the required
business expertise in over a period of more than two decades and was involved in diverse
fields of construction, hospitality and gaming. A keen and intuitive mind, he recognized
that infrastructure development would drive the 2nd generation reforms in India and
envisaged that it will play a critical role in driving the Indian Economy. He promoted the
KABA Group to be a protagonist in rapid growth of infrastructure sector and have
presence across the infrastructure value chain with diverse projects such as roads, ports,
integrated city, IT parks, malls and commercial & residential real estate.
Mr. Abheshak Bhatnagar, B. Tech (IT) & PGDBM, heads the marketing and business
development division. He has worked across diverse sectors ranging from IT to Banking &
Finance to Infrastructure development in different capacities and roles. He has attained
state-of-the-art expertise in Process Development & System Management and is a great
source of strength and inspiration to his team members as they successfully choose newer
targets. He has a great professional vision and commitment to excellence.
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REDEFINING ROAD CONSTRUCTION AND MAINTENANCE
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New procedures tobenefit the environment!Our contribution to time and money savings with zero
®compromise on quality : Soil solidification with GeoCrete
®What is GeoCrete ?
Stabilization of existing or natural soils with cement is a problem because of the humus acids (especially fulvic and carbon acids) that are in organic matter. These
® acids will block the hydration of cement almost completely. Applying GeoCreteas an additive to cement neutralizes the humus acids in such a way that the hydration of cement in the stabilization (or immobilization) is not blocked.
®GeoCrete is an additive to cement and can be mixed together with cement and soils. It has an off – white to grayish color(powder form) which exists of alkaline –
®and alkaline earth elements. GeoCrete and cement together allow an environmental friendly transition of the existing soil into a newly build concrete like structure.
Unlike concrete, in which short crystalline structures are build (that’s why such a construction will crack easily and large surfaces need to be reinforced or the
®cracking controlled), GeoCrete allows long crystalline structures to be build which gives the construction high bearing capacities, elastic modules, the tensile strength. The construction also becomes water impermeable which enhances the frost resistance.
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®Operating Principle of GeoCrete®Distribution of the GeoCrete
distribution of the ®
GeoCreteand cement mixture
The water is sprinkled earlier which act as a means of transportfor the GeoCrete® and cement mixture to seep into the soil.
Blending the homogeneous®GeoCrete -cement mixture
into the soil
Mixture Area
ground homogeneously ®mixed with GeoCrete
WorkingDirection
injectingmechanismfor the water
locally existing ground
Through homogeneously®blending the GeoCrete
and cement settles around
and between the earth grains.
Cement
®GeoCrete
Earth Grain
After the compression process
the remaining humidity is
delivered into the air and soil
(hydrophobicity)
CompressedGround
UncompressedGround
The molecules of the ®GeoCrete ,cement and soil are
pressed to each other through the
compression procedure
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Product advantages
REDUCTION OF EARTH EXCAVATIONS REDUCTION OF COSTS FOR LANDFILL REDUCTION OF DEPTH FOUNDATIONS
MONEY SAVING
• Reduction of costs for earth excavation
• Reduction of transports needed to landfill sites
• Reduction of purchases of materials for base layer and anti-frost layer
• Reduction of supplies of filling materials
• Reduction of top coats
• Reduction of costs for repairs
• Reduction of maintenance costs
• No anti-capillary layers needed
• Immobilisation of hazardous materials without disposal and land fill charges
TIME SAVING
• Reduction of time expenditure for earth excavation
• Reduction of transports needed to landfill sites
• Reduction of deliveries of materials for base layer and anti-frost layer
• Reduction of supplies of filling materials
• Possibility to avoid depth foundations (after prior static inspection and if
foundation conditions are favourable)
• Reduction of settlement periods required
• Stabilisation and immobilization possible in one procedure
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Product properties
NEAR-NATURE SURFACES, NO CONCRETE HIGH LOAD CAPACITY WATERPROOF AND ACID RESISTANT
PROCESSING AND RESULT
• High load and bearing capacity
• Very resistant and durable
• Reduced formation of cracks
• Reduction of settlements
• Impermeable, leak-proof surfaces
• Acid-resistant, salt resistant
• Processing possible up to -6° C and under water
• Can be used for virtually any soil
• Immobilisation of hazardous substances
• Favourable alternative to concrete technology
Ecology
• Purely mineral components
• Completely recyclable
• Use of materials available on-site
• Lower strain on the environment as a result of considerably reduced transport
• Natural surfaces – no periods required for settlement
• As a result of building time reduction, reduction of building traffic and impact
on general traffic (diversions, queues, etc.)
• Groundwater protection
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Areas of use
• Road and motorway
construction
• Footpaths, cycle paths, forest
paths and agricultural roads
• Access routes for the oil, gas
and wood industries
• Establishment of base layers
under hall floors
• Construction of runways
• Tunnel and sewage system
construction
• General foundations
• Parking, container storage
points, logistics centres
• Harbour premises and
wharfages
• Storage areas for wood, metal,
etc.
• Biogas plants
• Biogas storage areas
• Chaff storage
• Embankment stabilization
• Slope reinforcements, grouting
• Dam reinforcements
• Hard shoulder compression
• Landfill sites
• Replacement of depth
foundations
• Railway tracks
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Milling of the old asphalt
Milling of the old asphalt layers
Up to 10 cm of the old asphalt
material can be mixed together ®with the cement - GeoCrete -
mixture
Procedure steps: Banished roads
Special Grubber in action
Cracking of the old layer material
Big stones were brought to the
surface
Stone crusher in action
Milling of the mixed layer material
with the stone crusher to a grain
size < 50 mm
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Procedure steps: From the scratch
S e c u r e t r a f f i c a b i l i t y f o r construction equipment
Reduce water content of soil, if required
Exchange soil, if required.
Pre-leveling/pre-compaction of rough grade level
Obstruction-free trafficability of the area
M a r k i n g / p e g g i n g o f stabilization area
Safeguarding of subterranean service pipes
Q u a l i f i c a t i o n t e s t f o r specif icat ion of cement/ additive mixture comprising of
®GeoCrete
Production of cement and ®GeoCrete mixture
Preparation and use of suitable spreading vehicle
Construction site logistics for o n - s c h e d u l e d e l i v e r y o f spreading vehicle
Superv i s ion of spreading procedure
PREPARATION OF SURFACES
®SPREADING OF CEMENT AND GeoCrete MIXTURE
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® Mixing of cement & GeoCrete
in required strength using soil
stabilizer in the soil
In the case of milling depths
required > 50 cm, the soil is dug
away, stored intermediary,
mixed with cement and reused.
Procedure steps:MIXING OF CEMENT
Irrigating the base layer (evapo-
ration protection) using an
irrigation unit
Continual adding of water
without interrupting the milling
work
Filling procedure using vacuum
tanker
WATERING THE SURFACE
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STATIC PLATE TEST DYNAMIC PLATE TEST DRILLING CORES
Procedure steps:
LEVELLING OF THE SURFACE
On-site creation of precise grade
level
Post-profiling with grader (laser
controlled) if necessary
QUALITY ASSURANCE Geotechnical support using static plate tests according to DIN 18134 and using
dynamic plate tests as well as falling weight equipment
Removal of drilling cores
Compression strength tests, etc.
COMPRESSION OF THE SURFACE
D y n a m i c a n d / o r s t a t i c
compression on average 100%
DPR using suitable equipment
Compression of precise grade level
using smooth drum rol ler on
average 100% DPR using suitable
equipment
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Comparison of a conventional construction vs.construction using ®GeoCrete
Comparison
CONVENTIONAL ®
GeoCrete
Asphalt top layer 4 cm
Asphalt binder layer 8 cm
Asphalt base layer 12 cm
Combined anti-frost and 45 cmCombined anti-frost and 45 cmbase layerbase layerCombined anti-frost and 45 cmbase layer
Asphalt top layer 4 cm
Asphalt binder layer 6 cm
* If required
®GeoCrete layer 30 cm®GeoCrete layer 30 cm®GeoCrete layer 30 cm
E value at least 45 MN/m , if v2 2
below additional soil stabilization is necessary
E -Wert > 10 MN/m no furthersoil V2 2
stabilization is necessary
After compression. Ev2
value > 300 MN/m2
(higher compression Than with use of
gravel with max. 150 MN/m2).
* open surface, micro surfacing
TRADITIONAL CEMENT STABILISATION
Stabilized layer may fail within one
year due to freeze/thaw without
friction surfaces
Cannot be tailored blended for soil
types
Expensive repeated maintenance
required
Environmentally unfriendly
®GeoCrete STABILISATION
With proper blending, stabilized
layer will outlast traditional method
due to freeze/thaw issues
Can be tailored to specific soil types
Will significantly reduce mainte-
nance costs
Environmentally friendly
The stabilized layer has a very high load bearing
capacity due to the long needle like crystals that
form during the hydration process
High load capacity
LONGER CRYSTALS
HYDRATION
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The concept of precast (also known as “prefabricated”) construction includes those buildings where the majority of structural components are standardized and produced in plants in a location away from the building, and then transported to the site for assembly. These components are manufactured by industrial methods based on mass production in order to build a large number of buildings in a short time at low cost.
MODERN PRE-CAST CONCRETE BUILDING STRUCTURES
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OPPORTUNITIES WITHPREFABRICATION Factory made products
Shorter construction time
Continuing erection in
winter time
Quality
Structural efficiency
Flexibility in use
Adaptability
Fire resistant construction
Environmentally friendly construction
Reduces overall weight of the building.
Higher thermal and sound insulation.
Increase building efficiency on site with quick
assembly.
Can be nailed, drilled.
No need for the plaster
Earthquake/termite resistant
PRECAST CONCRETE ELEMENTS
Frame structures Columns Pocket foundations Beams
Hollow core slabs Double T slabs Research and Development Recycling
FRAME STRUCTURE & BEAM
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POCKETFOUNDATIONS
BEAMS
HOLLOW CORESLABS
DOUBLE TSLABS
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RESEARCH &DEVELOPMENT
RECYCLING
APPLICATIONSCan be used virtually anywhere
Applications
Pa
rkin
g Hig
hR
ise
Housing
BoundaryWalls
WarehouseSports
Complex
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Core
Walls
Façades
Floors
PRECAST STRUCTURALSYSTEMS
Portal frame systems
Skeletal structures
Wall frame structures
Floors and roof
Façades
FaçadesColumns
Beams
Floors
Roofs
SKELETAL SYSTEMOffices, commercial
buildings, car parks ...
PORTAL FRAME SYSTEMIndustrial Buildings,ware Houses ...
WALL FRAME SYSTEMHouses, Apartment Buildings,
Central Cores ...
Roofs
Columns
Roof beams
Façades
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SKELETAL SYSTEMS
Low and high rise building.structures up to 30 storeys
MEDIUM RISE BUILDINGS
Precast rectangular or round columns up to 20 m length
Precast stair and elevator shafts
Pre
ca
st f
loo
r b
ea
ms
Precast façades
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FLOOR LAY-OUTLARGE FREEDOM IN PLANNING
Orthogonal lay-outs are ideal butother shapes are equally possible
Floor spans for officebuildings 6 m to 16 m
Preferential modulation7.20 m and 9.60 m
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STRUCTURAL STABILITYThe horizontalstability of mediumand high rise precastbuildings is realisedthrough:
Central cores Shear wall action Floor diaphragms
Deflection principle of abraced skeletal structure
Floor diaphragms to transmithorizontal forces to core
Central core
Precast skeletal structure with hinged connections
Floor diaphragm action
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PROGRESSIVE COLLAPSE
ADJACENT AREAS OF DAMAGED STRUCTURE SHOULD PROVIDE FOR ALTERNATIVE LOAD PADS
Damage should notextend over 3 levelsabove and below thelocal damage
Floor lifted up andwall panel pushedout by explosion
Schematic illustration of accidental damage
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STRUCTURAL INTEGRITY
TYING FUNCTIONS
Peripheral ties ‘P’ : ensure diaphragm action
Longitudinal ties ‘L’ : take up horizontal forces from eccentric loading, wind, etc. and anchorage of floors to their support
Transversal ties ‘T’: take up horizontal forces for shear wall action
Vertical ties: ensure cantilever action shear walls
1. Internal floor ties
2. Peripheral floor ties
3. Gable internal ties
4. Floor to wall ties
5. Internal beam ties
6. Peripheral ties
7. Peripheral ties
8. Corner column ties and
peripheral ties
9. Column ties
10. Vertical column ties
11. Vertical wall ties
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CANTILEVERING FLOORS
Maximum2.00 m
Topping anchored incasted open sleeve
Structural toppingwith cantileverreinforcementOnly small direct
cantilevering possible
CANTILEVERINGHOLLOW CORE SLABS
BALCONIES
Balcony along longitudinal edge of hollow core floor Balcony in prolongation of
hollow core slabs
Cantileverreinforcement
Steel strut to takecompressive forcesacross jointBalcony fixing without cold bridges
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PRECAST STAIRS
Individual flights and landings, or combined flights and landings.Surface finishing in smooth concrete or polished terrazzo.
Straight stairs Round or helicoidal stairs
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CONNECTIONS
SCHEMATIC VIEW OF CONNECTIONSIN PRECAST FRAME STRUCTURES
Column-to-foundation
Beam-to-column
Floor-to-beam
Roof beam-to-column
Beam-to-roof
Projecting reinforcement from foundationsinserted in grout tubes inside column
Steel angles welded toreinforcing bars in column
Column inserted into concrete pocket
BOLTED CONNECTION
PROJECTING REINFORCEMENTPOCKET FOUNDATIONS
COLUMN FOUNDATIONCONNECTIONS
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Straight stairs Round or helicoidal stairs
mortar
Projectingbars
Supportingpad
Fineconcrete
Ste
el a
ng
le w
eld
ed
to
ma
in r
ein
forc
em
en
t
COLUMN-BEAM-COLUMNCONNECTIONS
CONNECTIONS
COLUMN-COLUMNCONNECTIONS
Co
lum
n -
Co
lum
n
No corbelsneeded. The floorbeams aredirectly supportenon the column
Columns are onestorey height
Column - foundation
Columns are 1 to4 storeys high
Corbels areneeded to supportthe floor beams
Co
lum
n - B
ea
m
Column - foundation
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CONNECTIONS
COLUMN-BEAM CONNECTIONS
grout tube
dowel
neoprene
Pinned connection
Boltedconnection
On The Column
Pinnedconnection
Edge columns
With corbels
Intermediate columnswithout corbels
Fine concrete
neoprene
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HIDDEN CORBELS
Steel box in column
Steel box in beam
Sliding plate
WALL FRAME STRUCTURES
Stair and lift shaft
Sandwich façades
Load bearing cross-walls
Large span hollowcore floors
Construction principle: load bearing cross-walls,central core, hollowcore floors, stairs andsandwich façades
LOAD BEARING PRECAST WALLS
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HOUSING SCENARIO ANDURBANIZATION : INDIA
India is undergoing transition from rural to urbansociety.
Increasing migration from rural to urban areas.
Mismatch between demand and supply of sites and services.
Disparity between high land costs of construction and lower incomes l e a d i n g t o n o n s u s t a i n a b l e situation.
Lack of equitable supply of land, shelter and services at affordable prices.
D e p l e t i o n o f r e s o u r c e s i n construction and negligence of ecology in design.
Lack o f app l icat ion o f cos t e f f e c t i v e n e s s a n d e n e r g y efficiency in construction.
Urban population likely to grow from 360 million in 2010 to 410 million in 2015.
Nearly 36% of India’s population likely to be urbanized by 2025.
Growing urbanization has led to:
a) Pressure on the availability of land and infrastructure
b) Deterioration of housing conditions of the weaker sections of society
c) Increased number of slums and squatter settlements
Some facts
533
468
410
360
285
2001 2010 2015 2020 2025Population (Mn)
600
500
400
300
200
100
0
Source ; Registrar of India
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HOUSING REQUIREMENT
Unveiling the report of
the Technical Group
on Urban Housing
Shortage (2012-17),
Housing and Urban
Poverty Alleviation
( H U P A ) M i n i s t e r ,
Kumari Selja said the
maximum shortage
e x i s t s f o r t h e
e c o n o m i c a l l y
weaker sections and
the lower income
group whose “need is
u n a b l e t o g e t
t r a n s l a t e d i n t o
demand due to issues
of affordability”.
Housing shortage at
the beginning of the
12th Five Year Plan
(2012-2017) – 18.78
million out of that
m o r e t h a n 9 9 %
s h o r t a g e i s f o r
EWS/LIG segments.
Highly time saving. More than 1500 dwelling units could be
easily built in less than a single year in 8 hours daily shift.
However the plant is flexible enough to be expanded at any
time to scale up the production for completing the project
earlier.
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Rock cutting without blasting technology– Hydraulic Splitters
Hydraulic Splitters Working Procedure
SALIENT FEATURES
Controlled directional cracking. The required direction of the crack can be obtained by just positioning the handle of the splitter in the direction of the required crack.
Much faster and greater output as compared to the conventional Chiseling/Chipping method. As drilling is comparatively easier in Hard rock and the output is directly proportional to the number of holes Drilled.
Noiseless, Environ-friendly and dust free operation.
Single person operation.
Due to smooth splitting operation the remaining structure to be saved will remain intact. Also due to the advantage o f cont ro l c rack direction, we can achieve precise results oriented output.
All splitter are CE MARKED.
GENERAL DESCRIPTIONThe Hydraulic Splitter works on the wedging principle. The wedges of splitter are inserted in pre drilled hole and out of the three wedges the center taper wedge is forced between the two c o u n t e r w e d g e s b y hydraulic pressure forcing them apart. The pressure is transferred to the walls of the Hole (rock/concrete) developing a crack and split further. The important factors a f f e c t i n g S p l i t t e r s p e e d a n d economics are the 'Pre' and 'Post' operat ions l ike Dr i l l ing and s i te cleaning.
DRILLING
T h e p r i m a r y operation while using Hydraulic Splitter is drilling. This is easier by
t h e c o n v e n t i o n a l m e t h o d o f pneumatic drilling with comp-ressor & jack hammer (Drill rod of 800mm length and cross bit Dia. of 48mm).
SPLITTING
After the drilling operat ion the splitter wedges ( t w o c o u n t e r wedges and one center wedge) are inserted in the hole. The control lever sets the f o r w a r d s t r o k e o f t h e w e d g e movement. The hydraulic pressure pushes the center wedge forward forcing the two counter wedges to move outwards, exerting pressure of 415 tons (4045 kn) and split the material. Out the several advantages, the Splitter operation is as fast as 7-8 seconds per s p l i t , r e s u l t i n g i n a c c e l e r a t e d excavation speed.
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1/5060, Basement, Sant Nagar, Main Desh Bandhu Gupta Road, Karol Bagh, New Delhi – 110005Tel . No. 011-45052857 Mob no. : 9899066992, 9818382255
E-Mail: info@kabagroup.com, www.kabagroup.com
Contents of the presentation are the exclusive property of KABA Infratech Pvt Ltd. Any copy, print, circulation etc. without the consent of KABA Infratech Pvt. Ltd. either for personal or commercial purpose is strictly prohibited.
GOVERNMENT‘S INITIATIVE
KABA Infratech Pvt. Ltd.
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