Grades of cement and their uses pdf
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- Strength of Concrete vs Grades of Cement
- CEMENT GRADES NOMENCLATURE: AN ESSENTIAL FOR CONSTRUCTION PROFESSIONALS
- Cement Types
- Types of Cement Used In The Construction Industry
Strength of Concrete vs Grades of Cement. Cements of different grades viz.
Strength of Concrete vs Grades of Cement
You will receive a link and will create a new password via email. Sorry, you do not have permission to ask a question, You must login to ask question. Become VIP Member. Do you need to remove the ads? There are various types of cement used in concrete construction. Each type of cement has its properties, uses, and advantages based on composition materials used during its manufacture.
Ordinary Portland cement is the most widely used type of cement, which is suitable for all general concrete construction. It is the most commonly produced and used type of cement around the world, with annual global production of around 3. This cement is suitable for all kinds of concrete construction. Portland pozzolana cement is prepared by grinding pozzolanic clinker with Portland cement.
It is also produced by adding pozzolana with the addition of gypsum or calcium sulfate or by intimately and uniformly blending Portland cement and fine pozzolana.
This cement has a high resistance to various chemical attacks on concrete compared with ordinary portland cement, and thus, it is widely used. It is used in marine structures, sewage works, sewage works, and for laying concrete underwater, such as bridges, piers, dams, and mass concrete works, etc. Rapid hardening cement attains high strength in the early days; it is used in concrete where formworks are removed at an early stage and are similar to ordinary portland cement OPC.
The strength of rapid hardening cement at the three days is similar to 7 days strength of OPC with the same water-cement ratio. Thus, the advantage of this cement is that formwork can be removed earlier, which increases the rate of construction and decreases the cost of construction by saving formwork cost. The difference between the quick setting cement and rapid hardening cement is that quick-setting cement sets earlier.
At the same time, the rate of gain of strength is similar to Ordinary Portland Cement, while quick hardening cement gains strength quickly. Formworks in both cases can be removed earlier. Quick setting cement is used where works is to be completed in very short period and for concreting in static or running water.
A small quantity of tricalcium aluminate makes the concrete to produce low heat of hydration. Low heat cement suitable for mass concrete construction like gravity dams, as the low heat of hydration, prevents the cracking of concrete due to heat. This cement has increased power against sulphates and is less reactive and initial setting time is greater than OPC. Sulfate resisting cement is used to reduce the risk of sulfate attack on concrete and thus is used in the construction of foundations where the soil has high sulfate content.
Sulfate resisting cement is used in construction exposed to severe sulfate action by water and soil in places like canals linings, culverts, retaining walls, siphons, etc. It can be used for works where economic considerations are predominant. High alumina cement is obtained by melting a mixture of bauxite and lime and grinding with the clinker.
It is a rapid hardening cement with initial and final setting time of about 3. The compressive strength of this cement is very high and more workable than ordinary portland cement and is used in works where concrete is subjected to high temperatures, frost, and acidic action. It is prepared from raw materials free from Iron oxide and is a type of ordinary portland cement, which is white.
It is costlier and is used for architectural purposes such as precast curtain wall and facing panels, terrazzo surface, etc. They are widely used for decorative works on floors. Air entraining cement is produced by adding indigenous air-entraining agents such as resins, glues, sodium salts of sulfates, etc. This type of cement is especially suited to improve the workability with a smaller water-cement ratio and to improve frost resistance of concrete.
This cement is mainly used for grouting anchor bolts and prestressed concrete ducts. It has the property of repelling water and is unaffected during monsoon or rains. Hydrophobic cement is mainly used for the construction of water structures such as dams, water tanks, spillways, water retaining structures, etc. Ordinary Portland cement OPC , portland pozzolana cement PPC , rapid hardening cement, quick-setting cement, low heat cement, sulfates resisting cement, blast furnace slag cement, high alumina cement, white cement, colored cement, air-entraining cement, expansive cement, and hydrographic cement.
It is used in marine structures, foundations, sewage works, sewage works, and for laying concrete underwater, such as bridges, piers, dams, and mass concrete works, etc. Sign Up Sign Up to The Constructor to ask questions, answer questions, write articles, and connect with other people.
Have an account? Sign In Now. Free Signup or Login to continue Reading Remember Me! Don't have account, Sign Up Here. Forgot Password Lost your password? VIP Dashboard. Contents: 13 Types of Cement and their Uses 1.
Rapid Hardening Cement 4. Quick setting cement 5. Low Heat Cement 6. Sulfates Resisting Cement 7. Blast Furnace Slag Cement 8. High Alumina Cement 9. White Cement Colored cement Air Entraining Cement Expansive Cement Hydrographic cement FAQs on different types of Cement.
What are the types of cement? Which type of Portland cement is most commonly used? Ordinary Portland cement is most commonly used type of cement. What are the applications of ordinary Portland cement?
What are the applications of Portland pozzolana cement? Where is hydrophobic cement used? Previous article. Next article. Gopal Mishra. Related Posts.
CEMENT GRADES NOMENCLATURE: AN ESSENTIAL FOR CONSTRUCTION PROFESSIONALS
Hello, guys here I will discuss different grades of cement. It means the difference between 33 Grade, 43 Grade, and 53 Grade of cement. They are different from each other due to their compressive strength. The unit of this compressive strength is Mpa Mega Pascale i. We know the compressive strength is the ratio of load to unit area.
Grades of concrete are defined by the strength and composition of the concrete, and the minimum strength the concrete should have following 28 days of initial construction. The grade of concrete is understood in measurements of MPa, where M stands for mix and the MPa denotes the overall strength. Concrete mixes are defined in ascending numbers of 5, starting at 10, and show the compressive strength of the concrete after 28 days.
In the construction industry, there are different types of cement.
Types of Cement Used In The Construction Industry
Construction documents often specify a cement type based on the required performance of the concrete or the placement conditions. Certain cement manufacturing plants only produce certain types of portland cement. What are the differences in these cement types and how are they tested, produced, and identified in practice? In the most general sense, portland cement is produced by heating sources of lime, iron, silica, and alumina to clinkering temperature 2, to 2, degrees Fahrenheit in a rotating kiln, then grinding the clinker to a fine powder. The heating that occurs in the kiln transforms the raw materials into new chemical compounds. Therefore, the chemical composition of the cement is defined by the mass percentages and composition of the raw sources of lime, iron, silica, and alumina as well as the temperature and duration of heating. It is this variation in raw materials source and the plant-specific characteristics, as well as the finishing processes i.
grades of cement pdf
Cement plays a crucial role in the construction process. So, before you buy it, you need to know about the Types of cement Grades. Because it is the quality of cement that decides the strength of your structure. The grade indicates the strength of cement. Strength is generally measured as compressive strength. Before buying the cement, you should check the grades because it highly affects the strength of your structure.
Cements are usually graded based on their compressive strength. Mixing Ratio is 1cement part: 3sand part: 6 aggregate part.