REDEFINING ROAD CONSTRUCTION AND MAINTENANCE. KABA Infratech Pvt. Ltd.

Transcription

1 REDEFINING ROAD CONSTRUCTION AND MAINTENANCE

2 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.

3 New procedures to benefit the environment! Our contribution to time and money savings with zero compromise on quality: Soil solidification with GeoCrete(

4 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.

5 Operating Principle of GeoCrete Distribution of the GeoCrete distribution of the GeoCrete and cement mixture The water is sprinkled earlier which act as a means of transport for the GeoCrete and cement mixture to seep into the soil.

6 Operating Principle of GeoCrete Blending the homogeneous GeoCrete -cement mixture into the soil mixture area injecting mechanism for the water working direction locally existing ground ground homogeneously mixed with GeoCrete

7 Operating Principle of GeoCrete Through homogeneously blending the GeoCrete cement settles around and between the earth grains. and Cement earth grains GeoCrete

8 Operating Principle of GeoCrete Compression After the compression process the remaining humidity is delivered into the air and soil (hydrophobicity) compressed ground uncompressed ground

9 Operating Principle of GeoCrete The molecules of the GeoCrete,cement and soil are pressed to each other through the compression procedure

10 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

11 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

12 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

13 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

14 Procedure steps: From the scratch 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 Surface preparation Spreading procedure

15 Procedure steps: 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 Mixing procedure Irrigation

16 Procedure steps: 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 Levelling Compression

17 Procedure steps: Quality assurance - Geotechnical support using static plate tests according to DIN and using dynamic plate tests as well as falling weight equipment - Removal of drilling cores - Compression strength tests, etc. Static plate test Dynamic plate test Drilling cores

18 Comparison Comparison of a conventional construction vs. construction using GeoCrete Conventional GeoCrete Asphalt top layer Asphalt binder layer Asphalt base layer 4 cm 8 cm 12 cm Combined anti-frost and 45 cm base layer if required* Asphalt top layer Asphalt base layer 4 cm 6 cm * open surface, micro surfacing GeoCrete layer 30 cm After compression. Ev2 value > 300 MN/m2 (higher compression Than with use of gravel with max. 150 MN/m2). Ev2 value at least 45 MN/m2, if below additional soil stabilization is necessary EV2-Wert > 10 MN/m2 no further soil stabilization is necessary

19 Comparison Traditional cement stabilisation Stabilized layer may fail within one year due to freeze/thaw without friction surfaces GeoCrete stabilisation With proper blending, stabilized layer will outlast traditional method due to freeze/thaw issues Cannot be tailored blended for soil types Can be tailored to specific soil types Expensive repeated maintenance required Will significantly reduce maintenance costs Environmentally unfriendly Environmentally friendly

20 High load capacity Hydration The stabilized layer has a very high load bearing capacity due to the long needle like crystals that form during the hydration process Longer Crystals

21 Reach us at : 1/5060, Basement, Sant Nagar, Main Desh Bandhu Gupta Road, Karol Bagh, New Delhi Tel. No Mob no. : , info@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.