This document provides an overview of ready-mix concrete (RMC). It discusses the history and development of RMC, which originated in Germany in 1903 and was first used in the United States in 1913. The document outlines the objectives, materials, equipment, and processes involved in RMC production. Key points include that RMC is a premixed concrete that uses aggregates, cement, water and sometimes additives. It is produced in batching plants then transported and mixed in transit mixers for delivery. The document also reviews quality checks, specifications, merits and limitations of using RMC.
Ready-mix concrete (RMC) is a ready-to-use material, with predetermined mixture of Cement, sand, aggregates and water.
“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.”
Ready-mix concrete (RMC) is a ready-to-use material, with predetermined mixture of Cement, sand, aggregates and water.
“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.”
Hi viewers, I am back with the various concepts of TYPES OF TESTS ON CONCRETE for civil engineers.
Here, i explained few topics
What is a concrete? Classification based o state of concrete? and various tests?
Quality Control in Concrete and Durability factors : An overviewbybyRAJESH PRASAD,IRSE, CPM/M, RVNL. KOLKATA. An interesting and informative presentation....
Admixtures are added in concrete to improve the quality of concrete.
Fly ash (FA), silica fume (SF), ground granulated blast furnace slag (GGBS), Metakaolin (MK), and rice husk ash (RHA)
Possess certain characteristics through which they influence the properties of concrete differently.
Effect of mineral admixtures on the properties of fresh concrete is very important as these properties may affect the durability and mechanical properties of concrete.
This presentation gives a brief introduction on FRC's history, definition and why is it used. Types of FRC's and it's applications is explained in detail in later stages.Also, it covers various properties that affects FRC and a Case study in end.
Here, I attach a PowerPoint presentation created by me for a competition held by UltraTech. Have a look at this and feel free to share your views with me.
Concrete is the most widely used construction material in India with annual consumption exceeding 100 million cubic meters.
High performance concrete is a concrete in which certain characteristics are developed for a particular application and environment, so that it will give excellent performance in the structure in which it will be placed.
A high-strength concrete is always a high performance concrete, but a high-performance concrete is not always a high-strength concrete.
This PPT includes the details about Ready Mix Concrete (RMC) it's History, Application, Equipment required, Tests, Process, Materials Used, Merits, Demerits, Scope, Ready Mix Vs Site Mix, Consumption and Growth in India and it's Conclusion.
Hi viewers, I am back with the various concepts of TYPES OF TESTS ON CONCRETE for civil engineers.
Here, i explained few topics
What is a concrete? Classification based o state of concrete? and various tests?
Quality Control in Concrete and Durability factors : An overviewbybyRAJESH PRASAD,IRSE, CPM/M, RVNL. KOLKATA. An interesting and informative presentation....
Admixtures are added in concrete to improve the quality of concrete.
Fly ash (FA), silica fume (SF), ground granulated blast furnace slag (GGBS), Metakaolin (MK), and rice husk ash (RHA)
Possess certain characteristics through which they influence the properties of concrete differently.
Effect of mineral admixtures on the properties of fresh concrete is very important as these properties may affect the durability and mechanical properties of concrete.
This presentation gives a brief introduction on FRC's history, definition and why is it used. Types of FRC's and it's applications is explained in detail in later stages.Also, it covers various properties that affects FRC and a Case study in end.
Here, I attach a PowerPoint presentation created by me for a competition held by UltraTech. Have a look at this and feel free to share your views with me.
Concrete is the most widely used construction material in India with annual consumption exceeding 100 million cubic meters.
High performance concrete is a concrete in which certain characteristics are developed for a particular application and environment, so that it will give excellent performance in the structure in which it will be placed.
A high-strength concrete is always a high performance concrete, but a high-performance concrete is not always a high-strength concrete.
This PPT includes the details about Ready Mix Concrete (RMC) it's History, Application, Equipment required, Tests, Process, Materials Used, Merits, Demerits, Scope, Ready Mix Vs Site Mix, Consumption and Growth in India and it's Conclusion.
Avoidance of waste and recycling of construction and demolition waste Dr K M SONI
Waste generation has to be stopped whether food, water, energy or even construction and demolition. This will save natural resources and help in emission of greenhouse gases and climate change.
Ready-mix concrete is concrete that is manufactured in a batch plant, according to a set engineered mix design.Ready-mix concrete is normally delivered in two ways. First is the barrel truck or in–transit mixers.This type of truck delivers concrete in a plastic state to the site.
ready mix concrete supplier
ready mix concrete columbus ohio
ready mix concrete near me
local ready mix concrete companies
ready mix concrete company near me
ready mix concrete prices
ready mix concrete calculator
ready mix companies near me
how is ready mix concrete manufactured
ready mix companies near me
ready mix usa locations
ready mix suppliers near me
ready made concrete mix
ready mixed cement
ready mix price per yard
how to mix cement
What are the Different Types of Ready Mix ConcreteArkihive
Concrete is a mixture of Portland cement, water, and coarse & fine aggregates mixed at the site. RMC as opposed to site concrete is mixed in a central batching or a mixing plant which is then transported in a truck-mixer and supplied in fresh condition to the site. RMC has the same composition & proportion as traditional concrete, since it is manufactured in a plant it has the added advantage of mixing concrete in precise proportions. This improves the concrete mix and standardizes the quality. This concrete mix is supplied in terms of cubic meters.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Vaccine management system project report documentation..pdfKamal Acharya
The Division of Vaccine and Immunization is facing increasing difficulty monitoring vaccines and other commodities distribution once they have been distributed from the national stores. With the introduction of new vaccines, more challenges have been anticipated with this additions posing serious threat to the already over strained vaccine supply chain system in Kenya.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Event Management System Vb Net Project Report.pdfKamal Acharya
In present era, the scopes of information technology growing with a very fast .We do not see any are untouched from this industry. The scope of information technology has become wider includes: Business and industry. Household Business, Communication, Education, Entertainment, Science, Medicine, Engineering, Distance Learning, Weather Forecasting. Carrier Searching and so on.
My project named “Event Management System” is software that store and maintained all events coordinated in college. It also helpful to print related reports. My project will help to record the events coordinated by faculties with their Name, Event subject, date & details in an efficient & effective ways.
In my system we have to make a system by which a user can record all events coordinated by a particular faculty. In our proposed system some more featured are added which differs it from the existing system such as security.
COLLEGE BUS MANAGEMENT SYSTEM PROJECT REPORT.pdfKamal Acharya
The College Bus Management system is completely developed by Visual Basic .NET Version. The application is connect with most secured database language MS SQL Server. The application is develop by using best combination of front-end and back-end languages. The application is totally design like flat user interface. This flat user interface is more attractive user interface in 2017. The application is gives more important to the system functionality. The application is to manage the student’s details, driver’s details, bus details, bus route details, bus fees details and more. The application has only one unit for admin. The admin can manage the entire application. The admin can login into the application by using username and password of the admin. The application is develop for big and small colleges. It is more user friendly for non-computer person. Even they can easily learn how to manage the application within hours. The application is more secure by the admin. The system will give an effective output for the VB.Net and SQL Server given as input to the system. The compiled java program given as input to the system, after scanning the program will generate different reports. The application generates the report for users. The admin can view and download the report of the data. The application deliver the excel format reports. Because, excel formatted reports is very easy to understand the income and expense of the college bus. This application is mainly develop for windows operating system users. In 2017, 73% of people enterprises are using windows operating system. So the application will easily install for all the windows operating system users. The application-developed size is very low. The application consumes very low space in disk. Therefore, the user can allocate very minimum local disk space for this application.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Courier management system project report.pdfKamal Acharya
It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
AIRCRAFT GENERAL
The Single Aisle is the most advanced family aircraft in service today, with fly-by-wire flight controls.
The A318, A319, A320 and A321 are twin-engine subsonic medium range aircraft.
The family offers a choice of engines
2. INTRODUCTIONINTRODUCTION
Ready-mix concrete (RMC) is a ready-to-use material,
with predetermined mixture of Cement, sand, aggregates
and water.
The Idea of Ready Mix Concrete (RMC) was first
introduced by Architect Jurgen Heinrich Magens, he got his
patent of RMC in Germany in 1903.
In 1907, he discovered that the available time for
transportation could be prolonged not only by cooling
fresh concrete but also by vibrating it during
transportation.
3. The first concrete mixed off site and delivered to aThe first concrete mixed off site and delivered to a
construction site was effectively done in Baltimore,construction site was effectively done in Baltimore,
United States in 1913, just before the First World War.United States in 1913, just before the First World War.
The first concept of transit mixer was also born in 1926The first concept of transit mixer was also born in 1926
in the United States. In 1939, the first RMC plant wasin the United States. In 1939, the first RMC plant was
installed in United Kingdom and in 1933.installed in United Kingdom and in 1933.
Between the years 1950 and 1980 considerable growthBetween the years 1950 and 1980 considerable growth
of RMC took place in the United States.of RMC took place in the United States.
In India RMC was first initially was used in 1950 duringIn India RMC was first initially was used in 1950 during
the construction sites of Dams like Bhakra Nangal,the construction sites of Dams like Bhakra Nangal,
Koyna.Koyna.
4. • The increasing availability of special transport vehicles,
supplied by the new and fast growing automobile industry,
played a positive role in the development of RMC industry.
5. OBJECTIVEOBJECTIVE
Better quality concrete is produced.
Elimination of storage space for basic
materials at site.
Elimination of Procurement / Hiring of plant
and machinery.
Wastage of basic materials is avoided.
6. MATERIALS REQUIRED FOR RMCMATERIALS REQUIRED FOR RMC
1. AGGREGATE :
Aggregates are the important constituents in
concrete.They give body to the concrete, reduce
shrinkage and effect economy.The mere fact that the
aggregates occupy 70-80 per cent of the volume of
concrete.
8. Aggregates are divided into two categories from theAggregates are divided into two categories from the
consideration of sizeconsideration of size
• Coarse aggregate
• Fine aggregate
The size of the aggregate bigger than 4.75
mm is considered as coarse aggregate and aggregate
whose size is 4.75 mm and less is considered as fine
aggregate.
9. 2.2. CEMENT :CEMENT :
Cement is a binder material which sets
and hardens independently, and can bind other
materials together.
Cement is made up of four main compounds,
dicalcium Silicate (2CaO SiO2),
tricalcium silicate (3CaO SiO2),
tricalcium acuminate (3CaO Al2O3),
tetra-calcium aluminoferrite (4CaO Al2O3 Fe2O3).
these compounds are designated as C2S, C3S,
C3A, and C4AF.
10. where C stands for calcium oxide (lime), S for
silica and A for alumina, and F for iron oxide.
Small amounts of uncombined lime and magnesia also
are present, along with alkalis and minor amounts of
other elements.
11. 3.3. ADMIXTURE:ADMIXTURE:
• Air-entraining admixtures (mainly used in
concrete exposed to freezing)
• Water-reducing admixtures, plasticizers (reduce
the dosage of water while maintaining the
workability)
• Retarding admixtures (mainly used in hot weather
to retard the reaction of hydration)
• Accelerating admixtures (mainly used in cold
weather to accelerate the reaction of hydration)
12. • Super plasticizer or high range water-reducer
(significantly reduce the dosage of water while
maintaining the workability)
• Miscellaneous admixtures such as corrosion
inhibiting, shrinkage reducing, coloring, pumping etc.
13. FLY ASH:FLY ASH:
Fly ash is a by-product from coal-fired
electricity generating power plants.
The fly ash is generally used in the concrete in
the following ways.
As partial replace for cement.
As partial replacement for sand.
As simultaneous replacement for both
cement and sand.
15. WATER :WATER :
The pH value of water should be in
between 6.0 and 8.0 according to IS
456-2000.
16. RIcE HUSk / HULL ASH (RHA)RIcE HUSk / HULL ASH (RHA)
Today, rice is grown and harvested on every
continent except Antarctica.
The majority of all rice is produced in India,
China, Japan, Indonesia, Thailand, Burma, and
Bangladesh. Asian farmers’ accounts for 92-
percent of the world's total rice production.
More than 550 million tons of rice is
produced annually around the globe.
That rice husk are used in RMC to increase
the strength.
17. EQUIPMENTS REQUIRED:EQUIPMENTS REQUIRED:
Storage of materials - Silos, containers and
bins
Batching arrangement
Measuring and recording equipment
Mixing equipment
Control systems
Electrical, hydraulic and pneumatic drives
Conveying systems (belt / screw
conveyors)
23. MIXING PROCESS:MIXING PROCESS:
Thorough mixing of the materials is essential for
the production of uniform concrete. The
mixing should ensure that the mass becomes
homogeneous, uniform in colour and
consistency. There are three methods adopted
for mixing Ready Mix Concrete.
Following are the three types of mixing
process of RMC
1. Transit Mixed (or "truck-mixed") Concrete
2. Shrink Mixed Concrete
3. Central Mixed Concrete
24. Flow Chart of ManufacturingFlow Chart of Manufacturing
Process:-Process:-
26. TRANSIT MIXED (OR "TRUCK-TRANSIT MIXED (OR "TRUCK-
MIXED") CONCRETE:-MIXED") CONCRETE:-
While ready mixed concrete can be delivered to the point
of placement the overwhelming majority of it is brought to
the construction site in truck-mounted, rotating drum
mixers.
Truck mixers have a revolving drum with the axis inclined
to the horizontal.
Inside the shell of the mixer drum are a pair of blades or
fins that wrap in a helical (spiral) configuration from the
head to the opening of the drum.
The concrete is loaded and mixed, it is normally hauled to
the job site with the drum turning at a speed of less than 2
rpm.
28. NEEDS TO BE SPECIFIED BY CONSUMERNEEDS TO BE SPECIFIED BY CONSUMER
FOR RMCFOR RMC
Characteristic strength or grade (N/mm2)
Target workability or slump in mm required at
site
Exposure conditions for durability
requirements
Maximum water to cement ratio
Minimum cement content
Maximum aggregate size
Type of cement
Mineral admixture and its proportion (Kg/m3)
29. CHECKS BY CONSUMER BEFORECHECKS BY CONSUMER BEFORE
ORDERING THE RMCORDERING THE RMC
Calibrations of all measuring devices and their
accuracy.
Mode of operation of plant should preferably
be fully automatic and not manual.
Quality of materials proposed to be used.
Adequacy of quantity of materials used.
31. Merits of Ready-Mix ConcreteMerits of Ready-Mix Concrete
· A centralized concrete batching plant can serve a wide area. Site
Mix trucks can serve a larger area including remote locations that
standard trucks cannot.
· The plants are located in areas zoned for industrial use, and yet
the delivery trucks can service residential districts or inner cities.
· Better quality concrete is produced. Site Mix can produce higher
compression strength with less water than standard batching
methods.
· Elimination of storage space for basic materials at site. Standard
Batch plant need more room for their operation than Site Mix
trucks.
·
32. Merits ContinuedMerits Continued
Elimination of procurement / hiring of plant and machinery
· Wastage of basic materials is avoided. With a Site Mix truck, there is
less waste and washout. This is better for the environment.
Labor associated with production of concrete is eliminated. It takes
more people to operate a standard batch plant than a Mobile Mix
truck.
· Time required is greatly reduced..
33. Demerits of RMCDemerits of RMC
The materials are batched at a central plant, and the mixing begins at that
plant, so the travelling time from the plant to the site is critical over
longer distances. Some sites are just too far away, though this is usually a
commercial rather than technical issue.
· Generation of additional road traffic; furthermore, access roads, and site
access has to be able to carry the weight of the truck and load. Concrete
is approx. 2.5tonne per m³.
· This problem can be overcome by utilizing so-called 'minimix' companies,
using smaller 4m³ capacity mixers able to access more restricted sites.
· Concrete's limited time span between mixing and going-off means that
ready-mix should be placed within 10 minutes of batching at the plant.
· Modern additives modify precisely that time span however, the amount
of additive added to the mix is very important.
34. CONClUSION:CONClUSION:
The concrete quality produced in RMC
plant is highly consistent with low deviation
order.
It provides a high degree of overall strength
of hardened concrete and the performance
of the structure at a later date.
RMC operations are highly mechanized and
fully controlled through electronic controls
and hence reduce the probability of errors
in various operations.