REDEFINING ROAD CONSTRUCTION AND MAINTENANCEkabagroup.com/images/Roads construction...

© KABA Infratech Pvt. Ltd.

REDEFINING

ROAD

CONSTRUCTION

AND

MAINTENANCE


KABA (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, roads

repairing and maintenance, railway tracks, airports,

etc.

KABA is backed by a team of committed

professionals striving for excellence all time.


New procedures to benefit 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 block the

hydration of cement almost completely. Applying GeoCrete® as 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 colour(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.


Operating Principle of GeoCrete®

Distribution of the GeoCrete®

The water is sprinkled earlier which act as a means of transport for the GeoCrete® and

cement mixture to seep into the soil.

distribution of the GeoCrete® and cement mixture


Operating Principle of GeoCrete® Blending the homogeneous

GeoCrete® -cement mixture into the soil

mixture area

injecting mechanism for the water

working direction

ground homogeneously mixed with GeoCrete®

locally existing ground



Through homogeneously blending the GeoCrete® and

cement settles around and between the earth grains.

Cement

GeoCrete®

earth grains


Operating Principle of GeoCrete® Compression

After the compression process the remaining humidity is delivered

into the air and soil (hydrophobicity)

compressed ground uncompressed ground



The molecules of the GeoCrete® ,cement and soil are

pressed to each other through the compression procedure


Product advantages

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

Reduction of earth excavations Reduction of costs for landfill Reduction of depth foundations


Product properties 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

Near-nature surfaces, no concrete High load capacity Waterproof and acid resistant


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


Procedure steps: Banished roads

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

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

Asphalt milling machine Special Grubber Stone crusher


Procedure steps: From the scratch

Surface preparation Spreading procedure

Preparation of surfaces

- Secure trafficability for 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

- Marking/pegging of stabilization area

- Safeguarding of subterranean service pipes

Spreading of cement and GeoCrete® mixture

- Qualification test for specification of cement/

additive mixture

- Production of cement

- Preparation and use of suitable spreading vehicle

- Construction site logistics for on-schedule delivery

of spreading vehicle

- Supervision of spreading procedure


Procedure steps:

Mixing procedure Irrigation

Mixing of cement and GeoCrete® mixture with

soil

- Mixing of cement/additive mixture 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.

Watering the surface

- Irrigating the base layer (evaporation protection) using

an irrigation unit

- Continual adding of water without interrupting the

milling work

- Filling procedure using vacuum tanker


Procedure steps:

Levelling Compression

Levelling of the surface

- On-site creation of precise grade level

- Post-profiling with grader (laser controlled)

if necessary

Compression of the surface

- Dynamic and/or static compression on average

100% DPR using suitable equipment

- Compression of precise grade level using smooth

drum roller on average 100% DPR using suitable

equipment


Procedure steps:

Static plate test Dynamic plate test Drilling cores

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.


Comparison

Comparison of a conventional construction vs.

construction using GeoCrete® Conventional GeoCrete®

Asphalt top layer 4 cm

Asphalt binder layer 8 cm

Asphalt base layer 12 cm

Combined anti-frost and 45 cm

base layer

Ev2 value at least 45 MN/m2, if below additional soil stabilization

is necessary

if required*

* open surface,

micro surfacing

Asphalt top layer 4 cm

Asphalt base layer 6 cm

GeoCrete® layer

30 cm

After compression.

Ev2 value > 300 MN/m2

(higher compression

Than with use of gravel

with max. 150 MN/m2).

EV2-Wert > 10 MN/m2 no further soil stabilization is necessary


Comparison

Traditional cement stabilisation GeoCrete® 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

With proper blending, stabilized

layer will outlast traditional method

due to freeze/thaw issues

Can be tailored to specific soil types

Will significantly reduce

maintenance costs

Environmentally friendly


High load capacity

The stabilized layer has a

very high load bearing

capacity due to the long

needle like crystals that

form during the hydration

process

Hydration

Longer Crystals


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.

www.kabagroup.com

1/5060, Basement, Sant Nagar,

Main Desh Bandhu Gupta Road,

Karol Bagh,

New Delhi – 110005

Tel . No. 011-45052857

Mob no. : 9899066992, 9818382255

E-Mail: [email protected]

Reach us at :

http://www.presentationpoint.de/

http://www.ppt-vorlagen.de/

REDEFINING ROAD CONSTRUCTION AND MAINTENANCEkabagroup.com/images/Roads construction...

Documents

Transcript of REDEFINING ROAD CONSTRUCTION AND MAINTENANCEkabagroup.com/images/Roads construction...