A POWER POINT PRESENTATION ON

“READY MIX CONCRETE”BY

Mr. NIKAM V.N.(Lecturer)

Email- vilas5151@gmail.comCivil Engineering Dept.

Sandip Institute of Polytechnic, Nashik

Contents

• Introduction to RMC.• Components/Machinary required for RMC.• Processes in R.M.C.• Application of R.M.C.• Troubleshoots in RMC.• Advantages & Disadvantages.• Precautions to be taken for RMC.

Introduction to RMC.

• Limitations of Conventional methods of preparation of concrete.

i) Space Requirement.ii) Extra Money Investment.iii) Wrong mix design.iv) Handling and transportation of concrete.v) Wastage. vi) Inventory problem.vii) Labour Problem for mixing of concrete.viii) Improper control on mixing of ingredients.

What is RMC???

• READY MIX CONCRETE.• Providing readily mixed concrete from

centralized plant as per customer requirement in required duration.

Components/Machinary required for RMC.

• Cement silo- to store cement.• Aggregate batchers- to measure the aggregate.• Water tank- to store water.• Admixture tank.• Crushing plant-to prepare aggregate for RMC.• Belt conveyor- to transport material into mixer.• Control room.• Automatic generator system.• Transit mixer. • Weighing balance.• Testing laboratory.• Labour accommodation facility.

Processes in R.M.C.

• To prepare mix design of concrete.• Order to RMC.• Order to computer.• Mixing of all ingredients of concrete for required

number of revolution.• Transportation by Transit mixer.• Testing of concrete at RMC.• Unloading at site.• Providing test report to costumer.

Application of R.M.C.

• In congested area where storage is problem.• Pumping of concrete....• Underwater concreting.• Concrete roads.• Canal lining.• Repair and maintenance of highway.• High-rise structure, multistory building.• Geopolymer concrete.

Troubleshoots in RMC.

• Problem in computer system.• Traffic problem at road.• Mechanical Problem to Transit mixer.• Settling of tyres of Transit mixer during

transportation.

Advantages of RMC.

• It speed up the work.• Concrete is prepared as per mix design.• Useful in congested area.• Contractor need not to invest extra money.• Problem of bleeding segregation can be

avoided.• Need not establish testing laboratory at site.• Less number of labour are required.

Disadvantages of RMC.

• Cost is high.• Traffic problem.• Problem in Transit mixer.

Precautions to be taken in RMC.

• Concrete should be transported within 30 km radius from RMC plant or within 90 min.

• Admixture tank and water tank should be provided with Transit mixer.

• Rotation of Transit mixer should not be stopped under any circumstances.

Thank you.