This document discusses different types of cement, including acid resistant cement, blast furnace cement, coloured cement, expanding cement, high alumina cement, hydrophobic cement, low heat cement, pozzolana cement, quick setting cement, rapid hardening cement, sulphate resisting cement, white cement, and air entraining cement. Each type has specific chemical compositions and properties that make it suitable for different construction applications and environmental conditions.
The presentation that will cover the main topics of concreting methods in cold weather and discussion about the durabiity of concrete and also useful tips for designing the mix of concrete
Concrete, Cement, Raw Material of Cement, Types, Water, Aggregates, Sand, Mix...Naqeeb Khan Niazi
Concrete is an engineering material that simulates the properties of rock and is a combination of particles closely bound together. It is simply a blend of aggregates, normally natural sand and gravel or crushed rock.
Cement is a dry powdery substance made by calcining lime and clay, mixed with water to form mortar or mixed with sand, gravel and water to make concrete. It is a binder material. Once hardened, cement delivers sufficient strength to erect large industrial structures
Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore.
Sand a loose granular material that results from the disintegration of rocks, consists of particles smaller than gravel but coarser than silt, and is used in mortar, glass, abrasives, and foundry molds. : soil containing 85 percent or more of sand and a maximum of 10 percent of clay.
Concrete, Cement
Raw Material of Cement, Types
Water, Aggregates, Sand
Mixing of concrete
Transportation, Rate Analysis
Various types of cement used in construction in India.pdfyamunaNMH
Types Of Cement A powerful and long-lasting structure can be created with cement, a construction substance that hardens, sets, & adheres to other materials. The majority of its constituents are calcium silicates and other minor substances. In order to hydrate cement, it is mixed with water to create a paste, which eventually hardens and strengthens to form a solid structure.
The presentation that will cover the main topics of concreting methods in cold weather and discussion about the durabiity of concrete and also useful tips for designing the mix of concrete
Concrete, Cement, Raw Material of Cement, Types, Water, Aggregates, Sand, Mix...Naqeeb Khan Niazi
Concrete is an engineering material that simulates the properties of rock and is a combination of particles closely bound together. It is simply a blend of aggregates, normally natural sand and gravel or crushed rock.
Cement is a dry powdery substance made by calcining lime and clay, mixed with water to form mortar or mixed with sand, gravel and water to make concrete. It is a binder material. Once hardened, cement delivers sufficient strength to erect large industrial structures
Cement is manufactured through a closely controlled chemical combination of calcium, silicon, aluminum, iron and other ingredients. Common materials used to manufacture cement include limestone, shells, and chalk or marl combined with shale, clay, slate, blast furnace slag, silica sand, and iron ore.
Sand a loose granular material that results from the disintegration of rocks, consists of particles smaller than gravel but coarser than silt, and is used in mortar, glass, abrasives, and foundry molds. : soil containing 85 percent or more of sand and a maximum of 10 percent of clay.
Concrete, Cement
Raw Material of Cement, Types
Water, Aggregates, Sand
Mixing of concrete
Transportation, Rate Analysis
Various types of cement used in construction in India.pdfyamunaNMH
Types Of Cement A powerful and long-lasting structure can be created with cement, a construction substance that hardens, sets, & adheres to other materials. The majority of its constituents are calcium silicates and other minor substances. In order to hydrate cement, it is mixed with water to create a paste, which eventually hardens and strengthens to form a solid structure.
This power point presentation will able know the building materials like cement, lime, pozzolan and timber that are used in the construction of various types of building and their properties and significance in the selection and requirements of concerned material which are required in the construction. And it should be used after testing as per IS specifications and there by quality and economical in case of life span of buildings is to be specified in advance.
Popular as Building material.
Material with adhesive and cohesive properties.
To bind the fine and corse aggregate together.
Common variety of cement is known as the Portland cement.
India is the fifth largest producer of cement in the world.
Rajasthan is the second largest producer of cement in india after Andra Pradesh.
This slideset was prepared as a student group assignment, for a class on-Introduction to Construction Materials. The facts shown and data used are most relevant to the Indian Context. Prepared by- K. Hari Chandana, Sukirti Sah, Tanya Talwar, Rana Sarkar, Akriti Srivastava, Jitendriya Meher, Anshuman Abhisek Mishra : 1st Sem B. Arch, School of Planning & Architecture, Bhopal, MP, India
In presentation I have covered all the topics of building materials which are used in construction work of any building like stone,brick,sand,cement,etc.
Aggregates: Review of types; sampling and testing; effects on properties of concrete, production of artificial aggregates.
Cements: Review of types of cements, chemical composition; properties and tests, chemical and physical process of hydration,Blended cements.Properties of fresh concrete - basics regarding fresh concrete –
mixing, workability, placement, consolidation, and curing,
segregation and bleeding
Chemical Admixtures: types and classification; actions and
interactions; usage; effects on properties of concrete
Mineral Admixtures: Flyash, ground granulated blast furnace slag,
metakaolin, rice-husk ash and
silica fume; chemical composition; physical characteristics; effects
on properties of concrete; advantages and disadvantages.
Proportioning of concrete mixtures: Factors considered in the design of mix . BIS Method, ACI method.,Properties of hardened concrete: Strength- compressive tensile
and flexure - Elastic properties - Modulus of elasticity - Creep-
factors affecting creep, effect of creep - shrinkage- factors affecting
shrinkage, plastic shrinkage, drying shrinkage, autogeneous
shrinkage, carbonation shrinkage ,Durability of concrete: Durability concept; factors affecting,
reinforcement corrosion; fire resistance; frost damage; sulfate
attack; alkali silica reaction; concrete in sea water, statistical quality
control, acceptance criteria as per BIS code.
Non-destructive testing of concrete: Surface Hardness, Ultrasonic,
Penetration resistance, Pull-out test, chemical testing for chloride
and carbonation- core cutting - measuring reinforcement cover
Special concretes - Lightweight concrete- description of various
types -High strength concrete - Self compacting concrete -Roller
compacted concrete – Ready mixed concrete – Fibre reinforced
concrete - polymer concrete
Special processes and technology for particular types of
structure - Sprayed concrete; underwater concrete, mass concrete;
slip form construction, Prefabrication technology
This power point presentation will able know the building materials like cement, lime, pozzolan and timber that are used in the construction of various types of building and their properties and significance in the selection and requirements of concerned material which are required in the construction. And it should be used after testing as per IS specifications and there by quality and economical in case of life span of buildings is to be specified in advance.
Popular as Building material.
Material with adhesive and cohesive properties.
To bind the fine and corse aggregate together.
Common variety of cement is known as the Portland cement.
India is the fifth largest producer of cement in the world.
Rajasthan is the second largest producer of cement in india after Andra Pradesh.
This slideset was prepared as a student group assignment, for a class on-Introduction to Construction Materials. The facts shown and data used are most relevant to the Indian Context. Prepared by- K. Hari Chandana, Sukirti Sah, Tanya Talwar, Rana Sarkar, Akriti Srivastava, Jitendriya Meher, Anshuman Abhisek Mishra : 1st Sem B. Arch, School of Planning & Architecture, Bhopal, MP, India
In presentation I have covered all the topics of building materials which are used in construction work of any building like stone,brick,sand,cement,etc.
Aggregates: Review of types; sampling and testing; effects on properties of concrete, production of artificial aggregates.
Cements: Review of types of cements, chemical composition; properties and tests, chemical and physical process of hydration,Blended cements.Properties of fresh concrete - basics regarding fresh concrete –
mixing, workability, placement, consolidation, and curing,
segregation and bleeding
Chemical Admixtures: types and classification; actions and
interactions; usage; effects on properties of concrete
Mineral Admixtures: Flyash, ground granulated blast furnace slag,
metakaolin, rice-husk ash and
silica fume; chemical composition; physical characteristics; effects
on properties of concrete; advantages and disadvantages.
Proportioning of concrete mixtures: Factors considered in the design of mix . BIS Method, ACI method.,Properties of hardened concrete: Strength- compressive tensile
and flexure - Elastic properties - Modulus of elasticity - Creep-
factors affecting creep, effect of creep - shrinkage- factors affecting
shrinkage, plastic shrinkage, drying shrinkage, autogeneous
shrinkage, carbonation shrinkage ,Durability of concrete: Durability concept; factors affecting,
reinforcement corrosion; fire resistance; frost damage; sulfate
attack; alkali silica reaction; concrete in sea water, statistical quality
control, acceptance criteria as per BIS code.
Non-destructive testing of concrete: Surface Hardness, Ultrasonic,
Penetration resistance, Pull-out test, chemical testing for chloride
and carbonation- core cutting - measuring reinforcement cover
Special concretes - Lightweight concrete- description of various
types -High strength concrete - Self compacting concrete -Roller
compacted concrete – Ready mixed concrete – Fibre reinforced
concrete - polymer concrete
Special processes and technology for particular types of
structure - Sprayed concrete; underwater concrete, mass concrete;
slip form construction, Prefabrication technology
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
CLASS 11 CBSE B.St Project AIDS TO TRADE - INSURANCE
Types of Cement.pdf
1. Types of Cement
August 31, 2015 S. C. Rangwala Cement 0
In addition to ordinary cement, following are the other important types of cement:
1. Acid resistant cement
2. Blast furnace cement
3. Coloured cement
4. Expanding cement
5. High Alumina cement
6. Hydrophobic cement
7. Low heat cement
8. Pozzolana cement
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2. 9. Quick setting cement
10. Rapid hardening cement
11. Sulphate resisting cement
12. White cement.
13. Air entraining cement
Above types of cement are discussed brieòy here:
Acid-resistant cement
Acid-resistant cement is composed of the following:
1. Acid-resistance aggregates such as quartz, quartzites, etc.
2. Additive such as sodium òuosilicate Na2SiF6
3. Aqueous solution of sodium silicate or soluble glass.
The addition of additive sodium òousilicate accelerates the hardening process of soluble glass
and it also increases the resistance of cement to acid and water.
The binding material of acid-resitance cement is soluble glass which is a water solution of
sodium silicate, Na2O.nSiO2 or potassium silicate, K2O.nSiO2, where n is the glass modulus.
The acid-resistance cement is used for acid-resistance and heat resistance coatings of
installations of chemical industry. It is not water-resistant and it fails when attacked by water
or weak acids. By adding 0.5 percent of linseed oil or 2 percent of ceresit, its resistance to the
water is increased and it is then known as the acid and water resistant cement.
Blast furnace cement
For this cement type, the slag as obtained from blast furnace is used. The slag is a waste
product in the manufacturing process of pig-iron and it contains the basic elements of
cement, namely alumina, lime and silica. The clinkers of cement are ground with about 60 to
65 percent of slag.
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3. The properties of this cement are more or less the same as those of ordinary cement. Its
strength in early days is less and hence it requires longer curing period. It proves to be
economical as slag, which is a waste product, is used in its manufacture. This cement is
durable, but not suitable for use in dry arid zones.
Coloured cement
The cement of desired colour may be obtained by intimately mixing mineral pigments with
ordinary cement. The amount of colouring material may vary from 5 to 10 percent. If this
percentage exceeds 10 percent, the strength of cement is aöected.
The chromium oxide gives green colour. The cobalt imparts blue colour. The iron oxide in
diöerent proportions gives brown, red or yellow colour. The manganese dioxide is used to
produce black or brown coloured cement.
These types of coloured cement are widely used for ñnishing of òoors, external surfaces,
artiñcial marble, window sill slabs, textured panel faces, stair treads, etc.
Expanding cement
This type of cement is produced by adding an expanding medium like sulpho-aluminate and a
stabilising agent to the ordinary cement. Hence this cement expands whereas other cements
shrink.
The expanding cement is used for construction of water retaining structures and also for
repairing the damaged concrete surfaces.
High Alumina cement
This cement is produced by grinding clinkers formed by calcining bauxite and lime. It is
speciñed that total alumina content should not be less than 32 percent and the ratio by
weight of alumina to lime should be between 0.85 to 1.30.
Hydrophobic cement
4. Hydrophobic cement
This type of cement contains admixtures which decreases the wetting ability of cement
grains. The usual hydrophobic admixtures are acidol, napthenesoap, oxidized petrolatum,
etc. Use of hydrophobic cement considerably increases the water resistance of an concrete.
Low heat cement
The considerable heat is produced during the setting of cement. In order to reduce the
amount of heat, this type of cement is used. It contains lower percentage of tricalcium
aluminate C3A of about 5% and higher percentage of dicalcium silicate C2S of about 46%.
This cement possesses less compressive strength. The initial setting time is about one hour
and ñnal setting time is about 10 hours. It is mainly used for mass concrete work.
Pozzolana cement
Pozzolana is a volcanic powder. It is found in Italy near Vesuvius. This type of cement is used
to prepare mass concrete of lean mix and for marine structures. It is also used in sewage
works ad for laying concrete under water.
Quick setting cement
This cement is produced by adding a small percentage of aluminium sulphate and by ñnely
grinding the cement. The percentage of gypsum or retarder for setting action is also greatly
reduced. The addition of aluminium sulphate and ñneness of grinding are responsible for
accelerating the setting action of cement. The setting action of cement starts within ñve
minutes after addition of water and it becomes hard like stone in less than 30 minutes or so.
The extreme care is to be taken when this cement is used as mixing and placing of concrete
are to be completed in a very short period. This type of cement is used to lay concrete under
static water or running water.
Rapid hardening cement
5. Rapid hardening cement
The initial and ñnal setting times of this cement are same as those of ordinary cement. But it
attains high strength in early days. It contains high percentage of tricalcium silicate C3S to the
extent of about 56%.
Sulphate resisting cement
In this cement, the percentage of tricalcium aluminate C3A is kept below 5 percent and it
results in the increase in resisting power against sulphates.
This type of cement is used for structures which are likely to be damaged by severe alkaline
conditions such as canal linings, culverts, siphons, etc.
White cement
This just a variety of ordinary cement and is prepared from such raw materials which are
practically free from colouring oxides of iron, manganese or chromium. For burning of this
cement, the oil fuel is used instead of coal. It is white in colour and is used for òoor ñnish,
plaster work, ornament work, etc.
Air entraining cement
It is produced by adding indigenous air entraining agents such as resins, glues, sodium salts
of Sulphates etc during the grinding of clinker. This type of cement is specially suited to
improve the workability with smaller water cement ratio and to improve frost resistance of
concrete.
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