PERFORMANCE EVOLUTION OF BITUMUNOUS MIXES USING COIR GEOTEXTILES

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1 International Journal of Civil Engineering and Technology (IJCIET) Volume 8, Issue 4, April 217, pp Article ID: IJCIET_8_4_12 Available online at ISSN Print: and ISSN Online: IAEME Publication Scopus Indexed PERFORMANCE EVOLUTION OF BITUMUNOUS MIXES USING COIR GEOTEXTILES A. Siva Teja and K. Keshav Prasad B. Tech Final Year Student, Department of Civil Engineering, KL University, Vaddeswaram, Andhra Pradesh, India B.G. Rahul and K. Hemantha Raja Assistant Professor, Department of Civil Engineering, KL University, Vaddeswaram, Andhra Pradesh, India ABSTRACT The present study is used to find the strength of bitumen. From this we conclude that the increase in the strength of bitumen by varying different proportions of coir fibre. For this we find the properties of aggregates and for bitumen property we conduct the penetration test, ductility test, softening ball point, Flash and fire test and marshal stability test. We use aggregates using MORTH table, bitumen and filler material and we find flow, stability and bulk density. For this we use the proportions of coir fiber has 2%, 4% and 6%. After comparing the results we find the optimum binder content and we find the stability and flow value. Key words: Bitumen, Coir Fiber, Flow Value, Marshall Stability, Stability Cite this Article: A. Siva Teja, K. Keshav Prasad, B. G. Rahul and K. Hemantha Raja, Performance Evolution of Bitumunous Mixes Using Coir Geotextiles. International Journal of Civil Engineering and Technology, 8(4), 217, pp INTRODUCTION Now a days we required the road conditions like more stable and strong. But most of the conditions are look like due to weather conditions and traffic conditions the roads are getting deteriorated by rutting, pot holes etc. So we need to improve the properties of the bitumen. To increase the property of bitumen we add coir fibre. Coir fibre is a naturally obtained material from coconut husk. Coir fiber is of two types, one is white fibre and the other is brown fibre. Brown fibre are strong and useful for Matts and in construction and White fibre are weak and they are used to make in ropes. Coir fibre is used as reinforcement and it resists on salt water. Coir fibre is used as abrasion resistance. Bitumen is viscous fluid material which has binding nature. Bitumenis mixed with coarse aggregates while constructing flexible pavements due to editor@iaeme.com

2 A. Siva Teja, K. Keshav Prasad, B. G. Rahul and K. Hemantha Raja adding of bitumen the life span of roads will increase and it provides flexible nature and it provides a good bonding and friction between vehicle wheels and surface of the road. But the main problem in the flexible pavements are due to high temperatures thevolatile compounds present in the bitumen are evaporate and the bitumen will become hard due to that when the traffic loads are heavy the pavement will deteriorated and in winter seasons and rainy seasons due to moisture and water the pavement may damage. To prevent this we add the coir fibre at a certain proportion to the bitumen mix by adding coir fibre, fibre can absorb water and it increase the tensile strengthand it is resistant to abrasion. OBJECTIVES To study the properties of the bitumen for different proportions of coir fibre. To study the stability and flow parameters of modified bitumen with coir fiber. Reduction of usage of natural available material by using waste materials (coir fiber). 2. METHODOLOGY 2.1. MATERIALS Coir fiber: Coir fiber is obtained from husk of the coconut. There are different types of coir fibers which used for different applications. Coir fiber is used to increase the tensile strength for the bitumen pavement Aggregates: Aggregates are in different forms like fine aggregates and coarse aggregates which are used to bind with the filler, water and bitumen to obtain sufficient strength. For this the aggregates should have sufficient strength. The properties of aggregates are find out by the tests conducting Aggregate impact test, Crushing value test, Water absorption test, Specific gravity and Los Angeles abrasion test. Table 1Tests on aggregates S.No Tests Test method Results Acceptable value 1 Aggregate Crushing value IS-2386(Part-4) 26.4% 3% 2 Impact value IS-2386(Part-4) 2.2% 1 2(strong), 2-3(good) 3 Specific Gravity IS-272(Part-3) Water absorption IS-2386(Part-3) % 5 Los Angeles abrasion test IS-2386(part-4) 34.2% 3% (Maximum) Bitumen: The bitumen we used in this experiment is 6/7. This type of grade is mainly used for hot bituminous mixes with chips. This bitumen is used as sealant, adhesive, waterproof agent and for binding the aggregates. The main property of these grade is it has more viscosity when compare to other grades. The properties of bitumen was find out by conducting the tests are Ductility test, Penetration test, Softening ball point test, Fire and Flash point test. Table 2Tests on bitumen S.No Tests Test Method Results Acceptable value 1 Ductility IS (Min) 2 Softening ball point IS (Min) 3 penetration IS Flash and fire point IS c(fire),218 c(flash) editor@iaeme.com

3 Performance Evolution of Bitumunous Mixes Using Coir Geotextiles Gradation of Aggregates: Gradation of aggregates is the one which we consider during mixing of aggregates. The aggregates should be mixed within the limits which was given by MoRTH as shown in Table.3 Table 3Gradation of aggregates as per MoRTH Grading 1 Nominal aggregate size 19 mm Layer thickness 5 65 mm IS Sieve(mm) Cumulative % of passing weights MARSHALL MIX DESIGN PROCEDURE Marshall Mix design is used to find the optimum binder content of the bitumen, Stability, flow value and bulk density for the bitumen content. 1. Select the different types of aggregates for grading by using MoRTH table. 2. First we need to assemble the mold with a base plate and we need to apply sum lubricate. 3. Before that we need to sieve the aggregate as par the MoRTH table. 4. And then we need to take the sample of aggregate as par the MoRTH table and heat the sample up to certain temperature by using pan. 5. And add the bitumen content to the sample and mix thoroughly then take it into the mold. 6. And give 75 blows on the both sides of the sample by using mechanical or manual. 7. Put the sample ideally for 24 hours after that remove the sample from the mold. 8. Do the water bath at 6 o cfor the sample after that clean the surface of the sample. 9. Then do the marshal stability test and note down the proving ring readings for different proportions of bitumen. 1. Then analyze the results. 4. RESULTS AND DISCUSSION By adding of 5%, 5.5% and 6% of bitumen with replacement of 2%, 4% and 6% coir fibre to the aggregates and by conducting Marshall Stability the following results were obtained: 17 editor@iaeme.com

4 A. Siva Teja, K. Keshav Prasad, B. G. Rahul and K. Hemantha Raja Table 4 Analysis of nominal and conventional mix Properties Nominal mix Modified mix (2%) Modified mix (4%) Modified mix (6%) % of bitumen Unit weight (g/cm2) % of air voids in mix % of voids filled by bitumen Flow(mm) Stability (kg) m1 m2 m3 mc 2 STABILTIY VALUE Figure 1 Bitumen content vs Marshall Stability value m1 m2 m3 mc FLOW VALUE Figure 2 Bitumen content vs Flow value editor@iaeme.com

5 Performance Evolution of Bitumunous Mixes Using Coir Geotextiles 1 8 mc m1 m2 m3 VFB Figure 3 Bitumen content vs % of voids filled by bitumen mc m1 m2 m3 5 4 VA Figure 4 Bitumen content vs % of air voids in mix 2.65 mc m1 m2 m3 2.6 UNIT WEIGHT Figure 5 Bitumen content vs unit weight editor@iaeme.com

6 A. Siva Teja, K. Keshav Prasad, B. G. Rahul and K. Hemantha Raja To determine the optimum binder content and optimum fiber content by the previous graphs Bitumen content vs Marshall Stability value Bitumen content vs Flow value Bitumen content vs % of air voids in mix Bitumen content vs % of voids filled by bitumen Bitumen content vs unit weight The optimum binder content is 5.5% The optimum fiber content is 5.7% In this we add the different proportions of coir fiber to the bitumen proportions to compare the strength. The optimum binder content for the conventional mix is 5.5% and for the modified mix is 5.7%.From the graphs we can observe that there is a decrease in air voids by addition of coir fibre. By increasing the coir fiber the Marshall Stability value increased and flow value gets decreased.it has been observed that due to addition of coir fiber, stability increased and thus structural resistance to distress occurring in flexible pavements has been increased.the addition of coir fibre increases the bulk density as compared with conventional mix.the Marshall Stability value with addition of 6% of coir fibre is kn. REFERENCES [1] Amit G, Animesh D. Emerging road materials and innovative applications. NatConf Mater Appl Civil Eng 24. [2] Abtahi SM, Hejazi SM, Sheikhzadeh M, Semnani D. An investigation on the use of textile materials to mechanical reinforcement of asphalt concrete (AC) structures and analysis of results by an artificial neural network (ANN). In: 4 th national congress on civil engineering, Tehran, Iran; 28. [3] Camila Nascimento Padilha Silva, Kíssyla Ávila Costa, Antonio Carlos Rodrigues Guimaraes, A study of asphalt mixtures reinforced with coconut fibers in brazil. [4] Gomaa KM. Effect of addition of short fibres of poly-acrylic and polyamide to asphalt mixtures. Alex Eng J 23; 42(3): [5] Huaxin C, Qinwu XB, Shuanfa CA, Zhengqi Z. Evaluation and design of fibre-reinforced asphalt mixtures. Mat PPDesign 29; 3: [6] Hejazi SM. Mechanical reinforcement of hotmix asphalt using textile materials. MSc thesis, Department of Textile Engineering, Isfahan University of Technology, Iran; 27. [7] Kamil E. Kaloush, Waleed A. Zeiada, Krishna P. Biligiri, Maria C. Rodezno, Jordan Reed, Evaluation of Fiber-Reinforced Asphalt Mixtures Using Advanced Material Characterization Tests. [8] K.B. Raghuram and VenkaiahChowdary, Performance Evaluation of Stone Matrix Asphalt (SAM) Using Low Cost Fibres, Journal of the Indian Roads Congress, volume 74-2, (213). [9] Kulkarani AG, Sathyanarayana K, Sukumaran KS. Mechanical behaviour of coir fibres under tensile load. J Mater Sci 1981: [1] Ministry of Roads Transport and Highways (MoRTH) 213, Specifications for Road and Bridges works, Fifth Revision, Section 5 Indian Road Congress New Delhi editor@iaeme.com