RECYCLED AGGREGATE CONCRETEIN RIGID PAVEMENTS PROJECT BY : HITESH BHOI KAILASH KUMAR GUPTA MD JUNAID NOSHIN PRAVEEN GUIDE: SHARMA H.D. ASHWINI CONTENT • • • • • • • • • • INTRODUCTION BACKGROUND OBJECTIVES ADVANTAGES DISADVANTAGES LITERATURE REVIEW METHODOLOGY DESIGN AND ANALYSIS TESTING CONCLUSION • It is called recycled aggregate which can be produced by concrete crusher. • The aggregates are categorized by size as coarse and fine aggregate. . researchers and companies focus on using waste concrete as a new construction material. durability and high strength concrete.INTRODUCTION • To achieve sustainable issue in construction area. • The characteristic of recycled aggregates could be different by its parent concrete because the parent concrete was designed for its purposes such as permeability. They also stated that the use of recycled aggregate for the construction and rehabilitation of local government roads has a great improve in the last five years • C & D Recycling Industry (n. the stones from the previous roads were reused when rebuilding their vaunted set of roads. the fact file stated that from the time of the Romans. the recycling industry had been well established in Europe. It also stated that since the end of World War II. • Wilmot and Vorobieff (1997) stated that recycled aggregate have been used in the road industry for the last 100 years in Australia.). the old concrete crushed into a powder was a popular road builder at Michigan. USA . • According to Seecharan (2004). the Detroid News stated that in 1980s.d.HISTORICAL BACKGROUND • The applications of recycled aggregate in the construction areas are wide and they had been used long time ago. etc. . excavation costs.OBJECTIVES • To find out the % use feasible for construction • To reduce the impact of waste materials on environment • To carry out different tests on recycled aggregates & natural aggregates and compare their results • To find out the ways of cost saving such as transportation costs. • Save environment There is no excavation of natural resources & less transportation. • Job opportunity Creates employment opportunities and economic activities in recycling industries . Less emission of carbon due to less crushing. • Save time There is no waiting for material availability. Less land is required.ADVANTAGES • Cost saving There are no detrimental effects on concrete & it is expected that the increase in the cost of cement could be offset by the lower cost of Recycled Concrete Aggregate (RCA). • Land.g. compressive strength reduces by 10-30%). • Duration of procurement of materials may affect life cycle of project. • It has higher drying shrinkage & creep. • Very high water absorption (up to 6%). . special equipments & machineries are required (more cost).DISADVANTAGES • Less quality (e. • Hanson and Torben (1986) stated that since 1945. Some of the literature reviews on recycled aggregate are shown as below. . There are many testing based on the recycled aggregate have been carried out all around the world. the research on recycled aggregate had been carried out in many countries.LITERATURE REVIEW • The applications of recycled aggregate in the construction area are very wide. 30% (RAC 30) and 40% (RAC 40) CONCLUSION: 1. Selected Replacements: 0% (NAC). Maximum Values of strength were obtained at 40% replacement.Recycled Concrete Aggregate.J-1. 2.A Percentage Replacement Method AUTHORS: Praveen Mathew Jeevan Jacob Leni Stephen Thomas Paul (2014) OBJECTIVE: To find out the percent replacement that offers a better structural property in comparison with the conventional concrete. Recycled aggregate is an ideal substitute for the natural aggregate in structural concrete. a Sustainable Option from Demolition Concrete Waste. . 20% (RAC 20). 3. CONCLUSION: 1. 2. Recurrent ASR appeared to present in small localized areas in one of the project as soon as 9 years after construction. CUTTEL MARK B. 2. . VANDENBOSSCHE MONTY J. SNYDER JULIE M. WADE OBJECTIVE: 1. Comparable Pavement performance between recycled and conventional PCC pavements was especially common when there were similar amounts of natural aggregates in the PCC mixtures. To identify the material and pavement design factors that have resulted in both Good and Unacceptable performance.J-2. Field study focused on the causes of pavement distresses associated with the use of RCA in PCC surface layers.Performance of Rigid Pavements containing RCA AUTHORS: GREGORY D. Recurrent D-cracking was not observed on any of the surveryed projects. Smith Susan L. Four experimental concrete pavement sections. each containing a different percentage of RCA in the concrete mix.J-3. 2. RECYCLED CONCRETE AGGREGATE IN CONCRETE PAVEMENTS: A FIVE YEAR STUDY ON ITS EFFECT ON PAVEMENT PERFORMANCE AUTHORS: Federico Irali Aleks Kivi James T. CONCLUSION: 1. if performance comparable to virgin materials can be expected . Tighe Cesare Sangiorgi (2013) OBJECTIVE: The objective of this research project was to evaluate the long-term performance of concrete pavements with different percentages of RCA through the construction of full scale test sections that was instrumented with various sensors to analyze and monitor pavement responses over time. were built at the CPATT test track in 2007 and all remain in very good condition after being subjected to traffic loading for more than five years. It suggest that the increased use of waste concrete in the form of RCA is feasible in concrete pavements. each containing a different percentage of RCA in the concrete mix. It suggest that the increased use of waste concrete in the form of RCA is feasible in concrete pavements. if performance comparable to virgin materials can be expected . RECYCLED CONCRETE AGGREGATE IN CONCRETE PAVEMENTS: A FIVE YEAR STUDY ON ITS EFFECT ON PAVEMENT PERFORMANCE AUTHORS: Federico Irali Aleks Kivi James T.J-3. Tighe Cesare Sangiorgi (2013) OBJECTIVE: The objective of this research project was to evaluate the long-term performance of concrete pavements with different percentages of RCA through the construction of full scale test sections that was instrumented with various sensors to analyze and monitor pavement responses over time. 2. CONCLUSION: 1. Smith Susan L. were built at the CPATT test track in 2007 and all remain in very good condition after being subjected to traffic loading for more than five years. Four experimental concrete pavement sections. To reduce the impact of waste materials on environment.Use of recycled aggregate up to 30% does not affect the functional requirements of the structure as per the findings of the test results. Due to use of recycled aggregate in construction. To find out the ways of cost saving such as transportation.J-4. 4. Pimplikar OBJECTIVE: 1.USE OF RECYCLED AGGREGATE CONCRETE AUTHORS: Mr. 3. Tushar R Sonawane Dr. . CONCLUSION: 1. To find out the % use feasible for construction. Various tests conducted on recycled aggregates and results compared with natural aggregates are satisfactory as per IS 2386. energy & cost of transportation of natural resources & excavation is significantly saved. 2. Sunil S. To carry out different tests on recycled aggregates & natural aggregates & compare their results. 2. excavation etc. 3. TESTING Conducting various tests are conducted in laboratory as per IS code & their results are compared with natural aggregate .METHODOLOGY COLLECTION Collection of Plain Cement Concrete (PCC) from site (Kumar Swamy Layout) CRUSHING Collected material is crushed by hammer to separate the aggregates and reduce their sizes in smaller fraction. and the material is screened for size.Concrete It is crushed. the reinforcement bar is removed. and drainage media. general fill. . Market outlets for recycled concrete include road base. pavement aggregate. DESIGN & ANALYSIS MIX PROPORTIONING The mix proportioning was done as per the Indian standards (IS 10262:2009). graded inorganic particles processed from construction and demolition concrete debris.6. • AGGREGATE: Recycled aggregates comprises of crushed. . These materials were obtained from a pavement. The cement used is of single origin Portland Pozzolana type with specific gravity 2. TESTING • SHAPE TEST : as per IS:2386(part I)-1963 − Elongation Index test − Flakiness Index test − Combined Index test − Angularity number test • AGGREGATE CRUSHING VALUE as per IS 2386(part IV) 1963 • AGGREGATE IMPACT VALUE as per IS 2386(part IV)1963 • LOS ANGELES ABRASION as per IS 2386(part IV)1963 • WATER ABSORPTION TEST as per IS 2386(part IV)1963 • COMPRESSIVE STRENGTH TEST as per IS Code • SPLIT TENSILE TEST as per IS Code • FLEXURAL STRENGTH TEST as per IS Code . • ER: Achieving the maximum strength at 40% replacement.CONCLUSION & EXPECTED RESULTS • Various tests conducted on recycled aggregates and results compared with natural aggregates are satisfactory as per IS 2386 • Due to use of recycled aggregate in construction. • Hence directly reduces the impact of waste material on environment. . energy & cost of transportation of natural resources & excavation is significantly saved. THE CHOICE IS YOURS TO LANDFILL TO RECYCLE . THANK YOU .