Ready mix concrete scm comp final

Ready Mix Concrete- Supply Chain Management

-Presented by saakshi mehta

04/09/23Ready Mix Concrete 2

READY MIX CONCRETE HISTORY

Ready mixed refers to concrete that is batched for delivery from a

central plant instead of being mixed on the job site

First factory was established in the 1930s

Ready mix concrete is sometimes preferred over on-site concrete

mixing

Ready Mixed Concrete is also referred as the customized concrete

products for commercial purpose 04/09/23Ready Mix Concrete 3

As early as 1909, concrete was delivered by a horse-drawn mixer that used

paddles turned by the cart's wheels to mix concrete en route to the jobsite.

In 1916, Stephen Stepanian of Columbus, Ohio, developed a self-

discharging motorized transit mixer.

Ready Mixed Concrete is manufactured under controlled operations and

transported and placed at site using sophisticated equipment and methods


READY MIX CONCRETE HISTORY

READY MIX CONCRETE

• Concrete is produced in industrial plants containing storage

facilities and equipment

• The majority of concrete production facilities are located nearby

areas where concrete is used

• A concrete factory must be located within a radius of 20 to 30 km

from the work site, depending on traffic conditions.


A VERY PRECISE MANUFACTURING PROCESS

Silos that contain cement, sand, gravel

preparation bin.

water dosage

mixing

transit mixer


TRANSMIXER

Designed especially for transporting the

fresh concrete

Among the most important production

tools

Carrying capacities of 4, 6, 8 and even

12 cubic meters


READY-MIX ORDER FULFILLMENTService and cost are the two main elements that play all the time in the Order

Fulfillment processes


READY-MIX ORDER FULFILLMENT


Transmixers

• A transmixer is a vehicle similar to a truck which was designed especially for transporting the fresh concrete to the place where it will be used without any decomposition in the characteristics of the concrete.

• Ready mixed concrete is a construction material which must be consumed within maximum two hours after production.

• Therefore, transmixers are among the most important production tools of a ready mixed concrete plant. Transmixers may have various carrying capacities of 4, 6, 8 and even 12 cubic meters.


READY MIX CONCRETE INDUSTRY INDIA:

40 cities currently are using it for several projects

Specifications by municipal corporations, public works and other Govt. bodies will play a big role in growth in the segment.

Major players in India:

RDC Concrete

ACC Concrete Ltd

Larsen & Toubro

Madras Cements

Grasim


BASIS OF SUPPLY

quality and in the quantity in accordance with the requirements agreed with the purchaser or has agent

All concrete will be supplied and invoiced in terms of cubic meters (full or part) of compacted fresh concrete.

All proportioning is to be carried out by mass except water and admixture, by volume.


TRANSPORT OF CONCRETE

General

• Ready-mixed concrete shall be transported from the mixer to the

point of placing as rapidly as possible

• Practicable by methods that will maintain the required workability

and will prevent segregation, loss of any constituents or ingress of

foreign matter or water

• Concrete shall be transported in a truck-mixer unless the purchaser

agrees to the use of non-agitating vehicles04/09/23Ready Mix Concrete 13

TIME IN TRANSPORT

discharge within 2 hr of the time Gf loading

The time of loading shall start from adding the mixing water to the

dry mix of cement and aggregate or of adding the cement to the wet

aggregate whichever is applicable.

Ready-mixed concrete plant shall have test facilities at its premises


INFORMATION TO BE SUPPLIED BY THE PURCHASER

• The purchaser shall provide to the producer the details of the concrete mix or mixes required by him and all pertinent information on the use of the concrete and the specified requirements.

• Prior to supply taking place, it is recommended that a meeting is held between the purchaser and the producer.

• Its objective to clarify operational matters, such as notice to be given prior to delivery, delivery rate, the name of the purchaser’s authorized representative who will coordinate Deliveries, any requirements for additional services such as pumping, on site testing or training, etc.


INFORMATION TO BE SUPPLIED BY THE PRODUCER

• When requested, the producer shall provide the purchaser with the following information before any concrete is supplied:

• Nature and source of each constituent material,

• Source of supply of cement, and

• Proposed proportions or quantity of each constituent/m3 of fresh concrete.

• Delivery Ticket

• Immediately before discharging the concrete at the point of delivery, the producer or his representative shall provide the purchaser with a preprinted delivery ticket for each delivery of concrete on which is printed, stamped or written the minimum information detailed in Annex G. The delivery ticket will form the basis of invoicing.


DELIVERY TICKET INFORMATION


ORDER PROCESSING

• A competent person to interpret the specified requirements and relate these to mix design criteria shall systematically review specification and orders supplied by the purchaser.

• These shall be formally recorded together with any modification to the specification resulting from subsequent agreed documentation to ensure that the plant operator is given the correct instructions for batching and mixing.

• When mixes or materials are offered as alternatives to requested mixes or where there is no specification supplied by the purchaser, orders whether received verbally or in writing, shall be agreed with the purchaser and the fact recorded.

• Alternatives to the mix description or compliance requirements in the purchaser’s specification shall be clearly identified in the quotation.


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Ready mix concrete scm comp final