This document discusses the components, classification, properties, workability, and strength testing of concrete. Concrete is made up of cement, coarse aggregate, fine aggregate, air, and water. It can be classified as hardened or fresh concrete. The properties of fresh concrete include workability, segregation, and bleeding, while hardened concrete properties include strength, impermeability, durability, and dimensional variations. Workability is tested using slump, compaction factor, and Vebe tests. Compressive strength of hardened concrete is tested using cube or cylinder tests.
Workability of concrete is defined as the ease and homogeneity with which a freshly mixed concrete or mortar can be mixed, placed, compacted and finished. Strictly, it is the amount of useful internal work necessary to produce 100% compaction.
MEANING OF MIX DESIGN
GRADE OF CONCRETE.
FACTORS INFLUCING THE CHOICE OF MIX DESIGN.
MATHODS OF CONCRETE MIX DESIGN
MIX DESIGN BY INDIAN STANDARD METHOD.
Quality Control in Concrete and Durability factors : An overviewbybyRAJESH PRASAD,IRSE, CPM/M, RVNL. KOLKATA. An interesting and informative presentation....
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.
The vacuum dewatering process basically improves strength, durability, and other properties of concrete by reducing the water-cement ratio immediately after the mix is placed, usually in floors and other flatwork. A Bridgeport, Connecticut vacuum dewatering demonstration, although it involved no new ...
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Workability of concrete is defined as the ease and homogeneity with which a freshly mixed concrete or mortar can be mixed, placed, compacted and finished. Strictly, it is the amount of useful internal work necessary to produce 100% compaction.
MEANING OF MIX DESIGN
GRADE OF CONCRETE.
FACTORS INFLUCING THE CHOICE OF MIX DESIGN.
MATHODS OF CONCRETE MIX DESIGN
MIX DESIGN BY INDIAN STANDARD METHOD.
Quality Control in Concrete and Durability factors : An overviewbybyRAJESH PRASAD,IRSE, CPM/M, RVNL. KOLKATA. An interesting and informative presentation....
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.
The vacuum dewatering process basically improves strength, durability, and other properties of concrete by reducing the water-cement ratio immediately after the mix is placed, usually in floors and other flatwork. A Bridgeport, Connecticut vacuum dewatering demonstration, although it involved no new ...
vacuum dewatering system
vacuum dewatering pump
vacuum dewatering box
wellpoint pump systems
dewatering pump system
dewatering pump
dewatering wellpoint
small wellpoint dewatering systems
interesting civil engineering topics
civil engineering topics for presentation
civil seminar topics ppt
civil engineering seminar topics 2018
best seminar topics for civil engineering
seminar topics pdf
seminar topics for mechanical engineers
seminar topic for civil engineering pdf
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Pile foundation is important for construction of foundation where bearing capacity of soil is poor. Pile foundation is use for distribution of uneven load of superstructure.There are so many type of pile are use for construction. Here i present some of pile with suitable condition for construction and methods for construction.
Thank you.
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.
Pile foundation is important for construction of foundation where bearing capacity of soil is poor. Pile foundation is use for distribution of uneven load of superstructure.There are so many type of pile are use for construction. Here i present some of pile with suitable condition for construction and methods for construction.
Thank you.
Hello, My name is Saidul Islam. I am a student of Stamford University Bangladesh. It is my varsity presentration. Here halp our course teacher , so I made it too largest. Here you got details in concrete. we are finish those work.
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I am here to share my knowledge on Non-Destructive Testing (NDT). In this presentation, I tried to explain on the following topics:
1. why we use NDT (purpose)?
2. Condition Assessment of the Structures by Non-destructive Evaluation Techniques
3. Concrete Petrography Implications
4. Potential as a DiagnosticTechnique
5. Common Applications of Microscopy in Concrete Science and Technology
6. Thermographic (Infrared Thermal Imaging)
With interesting pictures
and much more...
I put some effort to present in front of you. So, kindly if you find any mistakes feel free to text.
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c) Super column system.
d) Floor System
e) Foundation System adopted for the Tower
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In this presentation, i am sharing Concept & Construction of Palm Island.
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Where?
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Construction Machinery
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COMPUTER VISION SYNDROME( CVS ) with SOFTWARE LINK involved in it.JASHU JASWANTH
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detailed NATIONAL POLICY FOR THE EMPOWERMENT OF WOMEN (2001) is mentioned in the presentation
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INTRODUCTION
FACE RECOGNITION
CAPTURING OF IMAGE BY STANDARD VIDEO CAMERAS
COMPONENTS OF FACE RECOGNITION SYSTEMS
IMPLEMENTATION OF FACE RECOGNITION TECHNOLOGY
PERFORMANCE
SOFTWARE
ADVANTAGES AND DISADVANTAGES
APPLICATIONS
CONCLUSION
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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.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
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Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
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2. WHAT IS CONCRETE ?
It is an artificial stone, which is widely used in the construction world.
COMPONENTS OF CONCRETE
AIR
CEMENT
COARSE AGGREGATE
FINE AGGREGATE
WATER
3. CLASSIFICATION OF CONCRETE
Depending upon its state, concrete is classified into 2 types.
Hardened concrete
It is strong in
compression strength but lacks
in tensile strength.
Fresh concrete
It can be placed into forms
to produce large variety of structural
elements.
4. PROPERTIES OF CONCRETE
Fresh Concrete
Properties of concrete plays a vital role in making good quality concrete.
1. Workability.
2. Segregation.
3. Bleeding.
Hardened Concrete
1. Strength.
2. Impermeability.
3. Durability.
4. Dimensional variations.
5. The workability of concrete means the
ability to do work with concrete.
WHAT IS WORKABILITY OF CONCRETE ?
DIFFERENT TESTS FOR WORKABILITY
Slump test
Compaction factor test
Vebe test
FRESH CONCRETE
6. SLUMP TEST
Slump is the vertical settlement of fresh concrete after the
mould has been withdrawn.
It is measured as the difference between the height of the
mould and highest point of the subsided concrete.
NOT SUITABLE
For very wet or very dry concrete mixes.
Aggregate size is greater than 40 mm.
SLUMP MEAN
It is to determine workability of the concrete.
8. COMPACTION FACTOR TEST
Compaction Factor =
weight of 𝑝𝑎𝑟𝑡𝑖𝑎𝑙𝑙𝑦 compacted concrete
weight of 𝑓𝑢𝑙𝑙𝑦 compacted concrete
APPARATUS
Hoppers with polished surface have hinged doors at the bottom.
Cylindrical mould.
Trowel
Rod
NOT SUITABLE
For very low workable concrete because such concrete cannot be
fully compacted.
It is to determine workability of the concrete.
10. VEBE TEST
NOT SUITABLE
For concrete of higher workability, i.e. Slump above 75 mm.
SUITABLE
For concrete mixes with low or very low workability.
APPARATUS
Vibrating table
Elastic supports
Cylindrical container
Metal cone open at both ends
Iron rod
It is to determine workability of the concrete.
13. DIFFERENT TESTS FOR COMPRESSIVE STRENGTH
Cube test
Cylinder test
HARDENED CONCRETE
WHAT IS COMPRESSIVE STRENGTH?
The Resistance of a material to breaking under compression.
Units : psi in US Customary units or
MPa in SI units.
14. CUBE TEST
APPARATUS
Iron Moulds 150 mm X 150 mm X 150 mm
Clamping Equipment's
Mineral Oil / Normal Oil
Steel Rule
Trowel
Compression Testing Machine
It is conducted to determine the strength of the concrete.
16. CYLINDER TEST
It is conducted to determine the strength of the concrete.
APPARATUS
Iron Moulds 150 mm X 150 mm X 150 mm
Clamping Equipment's
Mineral Oil / Normal Oil
Steel Rule
Trowel
Compression Testing Machine