Project ppt guide shri a.n.dabhade sir 1
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The document summarizes a student project that studied using CNC waste and recycled aggregate in concrete mixes. The objectives were to create an economic concrete mix that meets quality specifications. Tests were performed replacing natural coarse aggregate with recycled aggregate at 30%, 50%, and 100% levels, along with additions of 1% and 2% CNC waste. Results showed compressive strength was highest with 50% replacement of natural aggregate and 2% CNC waste addition. This demonstrates the potential to significantly use waste materials like CNC and recycled aggregate in concrete production.
Project ppt guide shri a.n.dabhade sir 1
- 1. “Application of CNC waste with Recycled Aggregate in Concrete Mix” DEPARTMENT OF CIVIL ENGINEERING KAVIKULGURU INSTITUTE OF TECHNOLOGY & SCIENCE RAMTEK, NAGPUR (M.S.), PIN-441106 Guide Shri A. N. Dabhade (Asst. Professor) (B.E. Civil Engineering) Mr. Awanish Shukla Introductory Project Review on By CNC
- 2. Contents 1. Introduction 2. Objective 3. Conclusion of Literature 4. Work carried out 5. Results & Discussion 6. Future Scope 7. References CNC
- 3. Introduction Most countries are spending 8% of their GDP on infrastructure. CNC
- 4. Infrastructure and Concrete playing Major Role…..!!! How it Relates to Economy..??
- 5. What is CNC waste…???? CNC waste is waste obtained from Computer Numeric Controlled Lathe Machines. Annual CNC waste collection is about 1200 tonnes. CNC
- 6. CNC WASTE CNC WASTE Steel Key-Role in Infrastructure. Large waste Generation. Utilizing this waste for Concrete Mix.
- 7. Recycled Aggregate Crushers Resultant Aggregate
- 9. Concrete Dependency (2E’s & 2Q’s) CONCRETE Environ ment Economy Quality Quantity In this aspect CNC waste is most important….!!! CNC
- 10. By this we can prepare A Large “Quantity” Of “Economic” Concrete With Remarkable “Quality” CNC
- 11. Objective To prepare most economic concrete mix; which fulfils each and every quality specification as desired. Main Objectives on which the project is based- -Workability -Durability -Shrinkage Free -Bleeding Free -Good Proportioning CNC
- 12. To understand the current situation and the status of the collected CNC waste and recycled aggregate and to understand the availability of these materials. To collect CNC Lathe waste from Sunflag Steel Enterprises Bhandara, Machine Shop of Mechanical Department, K.I.T.S. Ramtek, and Recycled Aggregate from Kaveri Girls Hostel & Concrete Lab. To study the properties of recycled aggregate, the properties of the materials have to be examined through various tests. The various tests have been performed so as to check the different properties of aggregate
- 13. To prepare a mix design by IS code method. Test is to be performed on M20 cube replacing NCA with RCA and CNC. Replacing 30%, 50% & 100% NCA by RCA in addition of 1% and 2% CNC. Water cement ratio is taken as 0.50 by concrete mix design. Test on concrete cube specimens for compressive strength.
- 14. Conclusion of Literature Literature on CNC:- Many researchers used variety of wastes in their researches ranging from bicycle spokes lathe waste, soft drink bottle caps etc. Researchers used these wastes to carry the experiments for the analysis of various test
- 15. They got variety of results in which a tremendous increment in the compressive, tensile and flexural strength were obtained by addition and different composition of the wastes.
- 16. Literatures on RCA:- In various researches ,various proportions of replacement of natural coarse aggregate with recycled coarse aggregate was carried out. It was seen that the results were enhanced when 30% and 50% replacement of natural coarse aggregate with recycled coarse aggregate was carried out and considerable desired results were obtained.
- 17. Work carried out Characters Experimental values As per IS : 8112-1989 Consistency of Cement 33.0% - Specific gravity 3.15 3.15 Initial setting time 125 minutes >30 minutes Final setting time 300 minutes <600 minutes Test on cement
- 18. Property of Fine Aggregate Value of Fine Aggregate As per IS : 383- 1970 Specific gravity test 2.27% 2.55 Bulk Density test kg/m3 989kg/m³ 1440 kg/m³ Fineness modulus test 2.90 _ Water absorption 1.30% 2.10% Test on Fine aggregate
- 19. Property of aggregate Value of Natural aggregate As per IS: 383- 1970 Specific gravity(IS:2386- 1963) 2.68 2.74 Bulk Density kg/m3(IS:2386-1963) 1482kg/m³ 1600kg/m³ Fineness modulus 6.30 _ Water absorption (IS:2386-1963) 1.20% 0.50% Impact value test 16.32% 30% Crushing value test 21.30% 30% Test on Coarse aggregate:
- 20. Property of aggregate Value of Recycled aggregate Specific gravity 2.77 Bulk Density kg/m3 1370kg/m3 Fineness modulus 5.55 Water absorption 4.3% Impact value test 26.66% Crushing value test 25.6% Test on Recycled aggregate
- 21. Procedure for MIX DESIDN (By IS code method) The target mean compressive ( fck ) strength at 28 days is given by fck= fck + tS fck=20+1.65x4 = 26.6 MPa Where, fck = characteristic compressive strength at 28 days. S = standard deviation. t = a statistical value depending on expected proportion of low results (risk factor).
- 22. Selection of Water/Cement ratio 26.6
- 23. V = absolute volume of fresh concrete, which is equal to gross volume (m3) minus the volume of entrapped air, W = Mass of water (kg) per m3 of concrete C = Mass of cement (kg) per m3 of concrete Sc = Specific gravity of cement P = Ratio of FA to total aggregate by absolute volume fa, Ca = Total masses of FA and CA (kg) per m3 of concrete respectively and Sfa, Sca = Specific gravities of saturated, surface dry fine aggregate and coarse aggregate fa= 472.29 Kg/m3 Ca= 1222.3 Kg/m3 Where,
- 24. Particulars Water Cement Fine Aggregate Coarse Aggregate Ratio 0.50 1 1.24 3.19 “Mix Proportions”
- 25. MD : Concrete Mix with Natural Coarse Aggregate MD30: Concrete Mix at 30% replacement of NCA with RCA MD50 : Concrete Mix at 50% of NCA with RCA MD100: Concrete Mix at 100% replacement of NCA with RCA WCNC: Concrete Mix without CNC Lathe waste CNC1: Concrete Mix with 1% CNC Lathe waste (by weight of concrete) CNC2: Concrete Mix with 2% CNC Lathe waste (by weight of concrete) W/C : Water cement ratio Abbreviations Used
- 26. Sr. No. Mix Design Cement (Kg) FA (Kg) NCA (Kg) RCA (Kg) Water (Ltr) CNC (Kg) 9 MD 3.87 4.80 12.37 0.00 2.00 1.20 10 MD30 3.87 4.80 8.60 3.70 2.00 1.20 11 MD50 3.87 4.80 6.20 6.20 2.00 1.20 12 MD100 3.87 4.80 0.00 12.37 2.00 1.20 Mix Batches with CNC
- 27. Sr. No. Percentag e of CNC Load (KN) Calculation Compressi ve Strength (N/mm2) Average Compressiv e Strength (N/mm2) 1 WCNC 370 (370x1000)/22500 16.44 17.56 2 CNC1 375 (375x1000)/22500 16.67 3 CNC2 440 (440x1000)/22500 19.56 Test results of 7 day compressive strength test for MD
- 28. Test results of 28 day compressive strength test for MD Sr. No. Mix Design Load (KN) Calculation Compressive Strength (N/mm2) Average Compressive Strength (N/mm2) 1 WCNC 370 (370x1000)/2250 0 16.44 17.56 2 CNC1 380 (380x1000)/2250 0 16.89 3 CNC2 390 (390x1000)/2250 0 17.33
- 29. Test results of 7 day compressive strength test for MD30 Sr. No. Mix Design Load (KN) Calculation Compress ive Strength (N/mm2) Average Compressive Strength (N/mm2) 1 WCNC 360 (360x1000)/22500 16.00 17.78 2 CNC1 390 (390x1000)/22500 17.33 3 CNC2 450 (450x1000)/22500 20.00
- 30. Test results of 28 day compressive strength test for MD30: Sr. No. Mix Design Load (KN) Calculation Compre ssive Strength (N/mm2) Average Compressiv e Strength (N/mm2) 1 WCNC 500 (500x1000)/22500 22.23 17.782 CNC1 540 (540x1000)/22500 24.00 3 CNC2 560 (560x1000)/22500 24.89
- 31. Test results of 7 day compressive strength test for MD50 Sr. No. Mix Design Load (KN) Calculation Compres sive Strength (N/mm2) Average Compressiv e Strength (N/mm2) 1 WCNC 300 (300x1000)/22500 13.33 16.602 CNC1 400 (400x1000)/22500 17.78 3 CNC2 420 (420x1000)/22500 18.67
- 32. Test results of 28 day compressive strength test for MD50: Sr. No. Mix Design Load (KN) Calculation Compress ive Strength (N/mm2) Average Compress ive Strength (N/mm2) 1 WCNC 700 (700x1000)/22500 31.11 32.75 2 CNC1 730 (730x1000)/22500 32.50 3 CNC2 780 (780x1000)/22500 34.66
- 33. Test results of 7 day compressive strength test for MD100: Sr. No. Mix Design Load (KN) Calculation Compress ive Strength (N/mm2) Average Compressi ve Strength (N/mm2) 1 WCNC 320 (320x1000)/22500 14.10 15.19 2 CNC1 350 (350x1000)/22500 15.37 3 CNC2 360 (360x1000)/22500 16.10
- 34. Test results of 28 day compressive strength test for MD100 Sr. No. Mix Design Load (KN) Calculation Compressi ve Strength (N/mm2) Average Compressiv e Strength (N/mm2) 1 WCNC 400 (400x1000)/22500 17.77 18.66 2 CNC1 420 (420x1000)/22500 18.67 3 CNC2 440 (440x1000)/22500 19.55
- 35. RESULT & DISCUSSION In the experimental study we casted 72 cubes with various proportions of CNC waste and replacement of NCA to RCA. It was found that the compressive strength which was most suitable was obtained in 30% replacement of NCA to RCA in addition to 2% CNC waste.
- 36. 14.5 15 15.5 16 16.5 17 17.5 18 18.5 19 19.5 20 WCNC CNC1 CNC2 7 Day Compresssive Strength 28 Day Compressive Strength 0 5 10 15 20 25 30 WCNC CNC1 CNC2 7 Day Compressive Strength 28 Day Compressive Strength Compressive Strength Results for MD30 Compressive Strength Results for MD
- 37. 0 5 10 15 20 25 30 35 40 WCNC CNC1 CNC2 7 Day Compressive Strength 28 Day Compressive Strength 0 5 10 15 20 25 WCNC CNC1 CNC2 7 Day Compressive Strength Series 2 Compressive Strength Results for MD50 Compressive Strength Results for MD100
- 38. DISCUSSION: The tests on cubes were conducted. The test done is Compressive strength shown in the above tables with water cement ratio 0.5. The results show that the concrete specimens have more compressive strength when 50% replacement is done with NCA by RCA.
- 39. In addition to that highest results are shown when CNC waste is added in 2% by the weight of concrete. This shows a greater scope to use a large amount of waste (CNC) with the demolished waste i.e. Recycled aggregate.
- 40. 0 5 10 15 20 25 30 35 MD MD30 MD50 MD100 7 Day Compressive Strength 28 Day compressive Strength Comparative Study for Compressive Strength
- 41. FUTURE SCOPE It acts to be an Environmental savior. Due to lack of dumping sites in the present scenario, so there is need to save the land, this process leads as the savior of environment. From the above conclusion this process can be assumed to be the economical process as less transportation costs require and also the construction cost is less.
- 42. To produce and secure a system of sale based packed premixed concrete batches, in which CNC waste and recycled coarse aggregate concrete will be present.
- 43. References 1. Abbas Hadi Abbas, (2011), “Management of steel solid waste generated from lathes as fibre reinforced concrete”, European Journal of Scientific Research, Vol-No. 50, pp 481-485. 2. Dukovski V. And Vrtanoski G. (2005), “Design of Polymer concrete main spindle housing for CNC Lathe”, Achievements in Mechanical and Materials Engineering, Vol-No. 4, pp 695-698. 3. Dr. Prahallada M.C. and Dr. Prakash K.B., (2011), “lathe Machine waste used in concrete”, International Journal of civil, structural, environmental and infrastructure engineering research and development, pp 1-7. 4. Fong F.K. Winston, Jaime S.K. Yeung and Poon C. S. (2002), “Hong Kong Experience of Using Recycled Aggregates From Construction And Demolition Materials In Ready Mix Concrete”, International Workshop on Sustainable Development and Concrete Technology, pp 267-275. CNC
- 44. 5. How-Ji Chen, Tsong Yen and Kuan-Hung Chen (2003), “Use of Building Rubbles as Recycled Aggregates”, Cement and Concrete Research, pp 125-132. 6. Kumutha R., Vijai K. (2010), “Strength of concrete incorporating aggregates recycled from demolition waste”, ARPN Journal of Engineering and Applied Sciences, Vol-No. 5, pp 64-71. 7. Meddah Seddik Mohammed and Bencheikh Mohamed (2009), “Properties of concrete reinforced with different kinds of industrial waste fibre materials”, Construction and Building Materials, Vol-No. 23, pp 3196-3205. 8. Murali G., Vardhan Vivek C.M., Prabu R., Mohammad Z., Khan Sadaquath Ali, Mohamed Aarif T. and Suresh T. (2012), “Experimental investigation on fibre reinforced concrete using waste material”, International journal of Engineering Research and Applications, Vol- No. 2, pp 278-283. 9. Niranjana G., Dr. Mathew Samson and Dr. Jayabalan P. (2011), “Structural strength enhancement of rigid pavement using waste materials and fibres”, International journal of Engineering Research and Applications, Vol-No. 2, pp 212-219. CNC
- 45. 10. Parashar Ashish Kumar and Parashar Rinku (2012), “The effect of size of fibres on compressive strength of M20 concrete mix”, International journal of Engineering Research and Applications, Vol-No. 2, pp 1232-1236. 11. Prasad M.L.V. and Rathish P. Kumar (2007), “Strength Studies On Glass Fibre Reinforced Recycled Aggregate Concrete”, Asian Journal Of Civil Engineering of Building And Housing, Vol-No. 8, pp 6677-690. 12. Shivaraja M., Kandasamy S. and Thirumurugan A. (2010), “Mechanical Strength of fibrous concrete with waste rural materials”, Journal of Scientific and Industrial Research, Vol-No. 69, pp 308-312. 13. Yaprak Hasbi, Aruntas Huseyin Yılmaz, Demir Ilhami, Simsek Osman and Gokhan Durmus (2011), “Effects of the fine recycled concrete aggregates on the concrete properties”, International Journal of the Physical Sciences, Vol-No.6, pp 2455-2461. CNC
- 46. THANK YOU CNC