RoadstabB-Presentation

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RoadstabB-Presentation

  1. 1. RoadstaB Innovative technologies from Russia RoadstaB – Q : Soil Stabilizer RoadstaB – K : Bitumen Modifier RoadstaB – K1 : Asphalt Rejuvenator RoadstaB – Bar : Plastic Armature Presented by: Nikhil Sharma
  2. 2. Our Technologies 1. Soil Stabilization: A. B. C. 2. Bitumen Modifier: A. B. C. D. 3. Decreases the Asphalt mixing temperature up to 120 Degrees Decreases the pavement temperature to 60 Degrees, Ideal for high altitude area Increase Density of Asphalt Increase water resistance of Asphalt Asphalt regeneration: A. B. C. 4. Economy: RoadstaB Technology reduces cost by 20% to 40% Time Saving: Construction time is reduced by 50% Life Longevity: RoadstaB Tech enhances the durability by 4 times. 100% rejuvenate asphalt granules, could be used without mixing virgin asphalt. RoadstaB rejuvenated asphalt properties, exceeds the mechanical properties of virgin asphalt by 50% Supports 2 types of processing – Cold and Hot Plastic Armature: 1. 2. 3. 3 times stronger in tensile strength and 9 times lighter in weight. Savings in transportation, handling, and labor cost by 90% Rust proof, non conduction of heat and electricity.
  3. 3. Accreditation by IRC
  4. 4. RoadstaB Soil Stabilization economy data Soil stabilization is an innovative technology, which removes granular layers, and decreases the crust thickness. Results in saving: • Aggregates - 80% • Asphalt layer - 65% • Construction time - 50%. • Enhances durability - 400% with proper maintenance. • Decreases structural cost - 20-40% depending on the raw material to be used in structural designing
  5. 5. Application areas • Base structure for highways and state roads. • Base structure or structure for service lanes and rural roads. • Airstrip and helipads. • Base for civil structures. • Dirt Roads without wearing course. • Temporary roads without wearing course.
  6. 6. Properties of Road materials as per IRC 37-2012 • • • • • E value of BC= 1700-3000 MPa E value of DBM = 1700-3000 MPa E value of WMM = 350-450 MPa E value of GSB = 160 MPa E value of Subgrade = 60-70 Mpa • E value of RoadstaB layer = 8200 Mpa
  7. 7. Road Construction in India • • • • • • • Problems Mining problem Heavy traffic Heavy rain Flood, higher HFL Freq. Maintenance Quality control Machineries • • • • • • • RoadstaB’s Solutions No aggregate required Meant to bear heavy load Water resistant Stand alone on weaker soil No maintenance req. Full engineering supplied Basic machine req.
  8. 8. Basics of flexible pavement 5 MSA 75 mm 250 mm 75mm 75mm Crust Thickness: 475 mm Design Satisfying requirement of code IRC 37-2012
  9. 9. RoadstaB Semi-rigid pavement Solution 5 MSA 25 mm 100 mm 200 mm Crust Thickness: 325 mm Design Satisfying requirement of code IRC 37-2012
  10. 10. LOAD TRANSFER SOLUTION
  11. 11. IIT Pave Software strain calculation for RoadstaBsemi-rigid pavement 5 MSA The comparison of actual strains comes at the critical locations in compare with the allowable strains are given below. It shows that the pavement design is safe. Strength Value taken in design is 1650 MPa, which is 20% of the real value 8200 MPa,. Allowable strain as calculated from equations in IRC:37,2012 Actual strain obtained from IITPAVE Horizontal tensile strain Horizontal tensile strain 425.6 x 10-6 Vertical compressive strain on subgrade 784.4x10-6 24.43 x 10-6 Vertical compressive strain on subgrade 464.1 x 10-6
  12. 12. Durability test from NIT – Surat as required by IRC • The maximum permissible percentage loss in weight recommended for the stabilized mix to be used in pavement base course is 20% as per IRC:SP: 892010. The stabilised mix in the present study satisfies this criterion. Permissible Loss: 20% Real Loss 6.46%
  13. 13. Modulus of Elasticity by NIT, Gorakhpur as required by IRC Material % Sand Dust 60 Silty Sand 35 RoadstaB 0.007 Cement 4 CBR Unconfined Compression UCS Kg/cm2 172.50 30.2 Note: As per IRC 37-2012 E= UCS X 1000 Considering recommendation: E= 2.96X1000 = 2.960 MPA
  14. 14. Technical Data OAO “Russian Highway scientific research institute”“Souzdornii” (Association of national highway scientific research Institute) No Contents in % UCS after water saturation of 7 days kg/cm2 R-7 R-15 1 Soil Mix – 100%, cement 5% 23.2 13.6 2 Soil Mix-100%, cement 5 %, RoadstaB with OMC 38.7 31.5 Notes: 1. 2. 3. soil mix. R7- Strength limit on compression after total saturation R15- Strength limit on compression after 15 freezing and unfreezing cycles. Calculation of used stabilizer and cement were taken above 100% of mass of Conclusion: As per the results after testing of stabilized soils treated by cement and RoadstaB, qualifies the requirement of Govt standard 235558-94 and freezing resistance F 15 ( 15 cycles of negative temperature to positive temperature and vise-versa)
  15. 15. Central Testing laboratory ZAO “PO Vozrazdenie” Russia     Contents: Sand – aggregate 95% Cement mark 400 – 5% Stabilizer and organ mineral mix RoadstaB (water soluble activated organmineral admixture) 0.0071% Physical – Mechanical properties Compressive strength, MPa R20 UCS Tensile bending strength Curing 7 Days 4.9 - Curing 28 Days 6.5 2.1 6.0 1.5 As per Govt standard 23558-94 for mark M-60 Report: Above specified Aggregate-Sand-Cement mix qualifies the government standard Govt Standard 23558-94 mark 60.
  16. 16. Patna – O mile. NH-30 Final Surface
  17. 17. Processing: Stabilized Mix For Soil stabilization proper homogeneous mixing is must. Ideal compaction is necessary. 3 types of processing can be used. Every process has its advantages and restrictions, to be assessed by the client and Job site. 1. Mixed in plant (concrete mixer or WMM plant) paved by paver, and compacted by soil compactor 2. Mixed in specialized stabilization plant, paved by paver, and compacted by soil compactor 3. In situ mixing by recycler, leveled by grader, and compacted.
  18. 18. In-Plant mixing: WMM or Batch Mix Concrete mixer. Advantages: 1. No spl. Machine required 2. Available in all the construction sites. 3. Can be paved by paver. Restrictions: 1. Slow production 2. Transportation of ready material. 3. Needs calibration 4. Can not crush soil lumps, and rocks if available. 5. Low moisturized granular or powdered material required . 6. Difficult to use in Monsoon.
  19. 19. Specialized Batch Mix stabilization plant. Advantages: 1. Fast processing, optimized and accurate. 2. Can brake soil lumps. 3. Can be paved by paver. 4. Accurate and homogeneous mixing. Restrictions: 1. Transportation of ready mix. 2. Can not crush stone or rocks, if available in material. 3. Machine cost
  20. 20. In Situ mixing by recycler. Machine available on rent. Advantages: 1. No transportation of material required. 2. Can crush stone or rocks, work with any material 3. Accurate, and homogeneous mixing. 4. Faster in application. Restrictions: 1. To be leveled by grader. 2. Machine cost.
  21. 21. Application in field by in plant mixing 1. 2. 3. 4. 5. 6. 7. Removal of biological layer, removal of organics. Compaction of base. Preparation of subgrade. Supply of ready mix from plant. Paving process by paver. Compaction to achieve required density. Structure is ready for further laying of other layers as per design.
  22. 22. Application in field by Recycler mixing. 1. 2. 3. 4. 5. 6. 7. 8. 9. Removal of biological layer. Compaction of base. Preparation of Subgrade Supply of designed material from borrow area. Leveled by grader – road bed construction. Mixing by recycler up to required depth on OMC. Cambering by grader. Compaction to the required density. Structure is ready for further laying of other layers as per design.
  23. 23. We thank you for your valuable time and consideration. RoadstaB Team Add: Chetak House Old - Delhi Gurgaon Road Near CNG filling Station Kapashera, Delhi 110 037 Ph: +91 9896883663 E.mail: nikhil@roadstab.com .

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