452218856-Ready-Mix-Concrete-PPT-ppt.ppt

About ready mix concrete

1. Ready Mix Concrete
 
MADE BY-
RUSHABH . H . SHAH
STUDENT AT
CIVIL ENGINEERING DEPT .
VARTAK POLYTECHNIC.

2. READY MIX CONCRETE PLANT

3. Ready Mix Concrete - Definition


“Ready mix concrete is concrete whose
components are proportioned away from the
construction site for delivery to the construction
site by the truck in a ready-to-use-condition.”

4. History
In 1909, the residents of
Sneridan, Wyoming could
have witnessed the birth of
Ready Mix concrete
industry.
Prior to World War I,
concrete was produced in
stationery plant mixer
hauled to construction sites
in dumps trucks.
Transit Mixer in late 1950’s

5. Need for Ready Mix concrete
Requirement for higher grades of concrete
Correct accountability ingredients
Rapid development of infrastructure industry
Increased demand of concrete
Possibility of manufacture of desired grades
Mega project demands higher output
Timely supply of reliable concrete

6. Progressive growth of Ready mix concrete
in India
PHASE TIME PERIOD
IN YEARS
CEMENT
CONSUMPTION
IN %
VOLUME OF
R.M.C PER
YEAR
PHASE I 1992-2010 5-10% of cement
consumption
20 million cubic
meter/RMC/year
PHASE II 2020-2050 20-25% of cement
consumption
70 million cubic
meter/RMC/year
PHASE III 2050 Onwards25-40% of cement
consumption
100 - 150 million
cubic
meter/RMC/year

7. Advantages Of Ready Mix Concrete
Quality assurance
Elimination of manual errors
Mass production of concrete possible
Water cement ratio maintained
Reduced material wastage
Labour cost saved
Design mix as per IS standards resulting in standard
deviation and improved characteristics.

8. Disadvantages Of Ready Mix Concrete
The materials are batched at a central plant, and
the mixing begins at that plant
Generation of additional road traffic; furthermore,
access roads, and site access have to be able to
carry the weight of the truck and load.
Concrete's limited time span between mixing and
going-off