Ready Mix Concrete

  MADE BY-RUSHABH . H . SHAH STUDENT AT CIVIL ENGINEERING DEPT .VARTAK POLYTECHNIC.

READY MIX CONCRETE PLANT

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.”

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

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

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 Onwards 25-40% of cement

consumption

100 - 150 million

cubic

meter/RMC/year

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.

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