Join

Join TheConstructor to ask questions, answer questions, write articles, and connect with other people. When you join you get additional benefits.

Have an account? Log in
Continue with Facebook
Continue with Google
or use


Have an account? Log in Now

Log in

Log in to TheConstructor to ask questions, answer people’s questions, write articles & connect with other people. When you join you get additional benefits.

Join Here

Join for free or log in to continue reading...

Continue with Facebook
Continue with Google
or use


Forgot Password?

Don't have account, Join Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Log in Now

Sorry, you do not have permission to ask a question, You must log in to ask a question. Join now!

Join for free or log in to continue reading...

Continue with Facebook
Continue with Google
or use


Forgot Password?

Don't have account, Join Here
Join now!
The Constructor Logo The Constructor Logo
Log inJoin

The Constructor

The Constructor Navigation

  • Articles
    • Recent Articles
    • Popular Articles
    • Write for us
  • Community
  • Categories
    • How To Guide
      • Material Testing Guide
    • Concrete
    • Building
      • Brick Masonry
      • Building Materials
      • Building Tips
    • Construction
      • Equipments
      • Management
    • Digital Construction
    • Geotechnical
      • Foundation
  • Case Studies
Search
Ask A Question

Mobile menu

Close
Ask a Question
  • Questions
  • Ask Questions
  • Write for us
  • Artificial Intelligence
  • Sustainability
  • Building
    • Brick Masonry
    • Building Materials
    • Building Tips
    • Formwork/Shuttering
  • Concrete
    • Concrete Admixtures
    • Cement
    • Concrete Cracks
    • Concrete Properties
  • Construction
    • Construction Equipments
    • Construction Management
    • Construction Project
    • Estimating & Costing
  • How To Guide
    • Material Estimation
    • Repair/Protection Guide
    • Material Testing Guide
    • Mix Design Guide
    • Rate Analysis
  • Geotechnical
    • Foundation Engineering
    • Ground Improvement
  • Structural Engineering
    • Strengthening of Structure
    • Structual Inspection
    • Structural Detailing
  • Surveying
  • Tips

Which cement is best for concrete slab construction? OPC or PPC?

Home/ Questions/Q 27887
Next
Answered

Do you need to remove the ads? Join now!

Asked: December 18, 20182018-12-18T21:10:38-08:00 2018-12-18T21:10:38-08:00In: Construction
Gangadhar
Gangadhar

Gangadhar

  • 1 Question
  • 0 Answers
  • 0 Best Answers
  • 5 Points
View Profile
Gangadhar User

Which cement is best for concrete slab construction? OPC or PPC?
What is the difference and advantages of these cements for slab?

  • 10
  • 6 6 Answers
  • 85,111 Views
  • 2 Followers
  • 2
  • Share
    Share
    • Share on Facebook
    • Share on Twitter
    • Share on LinkedIn
    • Share on WhatsApp

6 Answers

  • Voted
  • Oldest
  • Recent
  1. aviratdhodare

    aviratdhodare

    • 37 Questions
    • 252 Answers
    • 0 Best Answers
    • 480 Points
    View Profile
    aviratdhodare
    2020-08-12T16:31:35-07:00Added an answer on August 12, 2020 at 4:31 pm

    Pozzolana Portland Cement (PPC) is better over OPC

    PPC is environment friendly, it contains fly ash.

    It was economic to be frank.

    It took some extra time for the member to set (First slab). So, for our second slab, we started casting it before 8 AM. We casted those slabs in summer.

    Uniform surface without any cracks was observed.

    We need to take more precaution when using it in a rainy season.

    OPC is better when you need to cast a slab in a rainy season.

    In detail,

    OPC = Ordinary Portland Cement
    PPC : Pozzolonic Portland cement

    (FYI : PPC is environment friendly as it consists fly ash in some specific percentages by parts, which is a waste product of burnt coal, usually collected from thermal power plants)

    OPC (m53) attains strength in a shorter time, while PPC (m43) takes longer.
    OPC therefore dries more quickly, but produces more heat during chemical reaction during which it gains strength, as compared to PPC
    Faster is the drying process, more is the risk of cracking of cement, and therefore it need more care and more amount of water for curing in a lesser time.
    PPC on the other hand can attain strength equal to OPC, but takes a longer time.

    For a building slab, PPC is more widely used since it requires less care.
    The strength depends on design mix (the water cement and aggregate ratio) more than type of cement.

    so essentially, If you need construction to take place faster and have means for good curing, you may use OPC.
    But if you need better quality and strength in less effort, use PPC.

    It still depends on the structure’s design requirements and a structural designer’s advice is to be followed.

    Hope this helps, but do consult an engineer before using any type of cement.
    Building construction is a responsible job and needs to be done safely and one must adhere to engineer’s specifications.

    • 55
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  2. AdityaBhandakkar

    AdityaBhandakkar

    • 12 Questions
    • 250 Answers
    • 2 Best Answers
    • 0 Points
    View Profile
    Best Answer
    AdityaBhandakkar User
    2020-08-10T20:45:36-07:00Added an answer on August 10, 2020 at 8:45 pm

    Generally, Ordinary Portland cement (OPC) is used in the factories, power plants and in large construction slabs.

    Portland pozzolana cement (PPC) is used for the construction of houses, schools, and residential building slabs. PPC is cheaper than ordinary Portland cement. Thus to reduce the building making cost, PPC should be adopted.

    Both the PPC and OPC cement is used in the construction of slabs.

    Portland pozzolana cement is Better resistant to sulfate attacks. Thus PPC is used in underwater construction where water has some amount of sulfur quantity. Its setting time is higher than OPC.

    • 49
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  3. nikeetasharma

    nikeetasharma

    • 23 Questions
    • 303 Answers
    • 0 Best Answers
    • 2,680 Points
    View Profile
    nikeetasharma Guru
    2020-09-13T21:23:07-07:00Added an answer on September 13, 2020 at 9:23 pm

    For the construction of concrete slab both the OPC & PPC cement can be used. OPC is the basic form of cement with 95% cement clinkers and 5% gypsum and commonly used in industrial and large construction. OPC cement gives high compressive strength at early stages and at 28 days. OPC cement also has increased workability and higher strength at later stages. Hence, it has early strength and also has cost saving advantages can generally used for the construction of concrete slab. OPC cement can also be recommended for the construction of columns, beams, etc.

    On the other hand, PPC cement is made up of 75-77% cement clinker, 20% flyash and 3-5% gypsum. They are commonly used for small residential construction. PPC is recommended for brick masonry, plastering, tiling and waterproofing works. It has slower rate of heat of hydration. PPC is prone to less cracks and reduced shrinkage and also gives better workability and finishing. Thus, PPC is only used where the possibilities of sulphate attack is higher as it is said to be the good sulphate resistor.

    Hence, both OPC & PPC can be a substitute to each other but only with a better quality control & by adopting best construction practices. So, for the construction of concrete slab both the OPC & PPC cement can be used.

    • 44
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  4. Tanveer

    Tanveer

    • 0 Questions
    • 1 Answer
    • 0 Best Answers
    • 1 Point
    View Profile
    Tanveer User
    2018-12-18T22:03:02-08:00Added an answer on December 18, 2018 at 10:03 pm

    both are used in construction of slab
    mainly OPC is used for RCC, PCC work, reason for that is high compressive strength in less period of time with proper curing
    PPC can be used for plaster, masonry work or waterproofing as strength is not major criteria
    PPC has an edge on OPC as PPC has slower rate of heat of hydration. Thereby PPC is prone to less cracks & reduced shrinkage), better workability and finishing (as fly ash based cement are spherical in shape and finer in size).
    PPC is cheaper than OPC

    • 5
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  5. deayan

    deayan

    • 1 Question
    • 3 Answers
    • 0 Best Answers
    • 5 Points
    View Profile
    deayan User
    2018-12-20T11:53:40-08:00Added an answer on December 20, 2018 at 11:53 am

    Todays Sinario is little different in case of big construction where Batching plant is used they Bought OPC and Mix Flyash/GGBS by there own to prepare concrete. and where no batching plant is used PPC/PSC should be Better then OPC. as due to low heat of hydration and Slow strength gain of initial 7 days give a more compact and LESS crack prone Durable structure. and definitely other process of construction considered as slandered.(MIXING, CURING, Etc)

    • 4
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp
  6. Gopal Mishra

    Gopal Mishra

    • 75 Questions
    • 44 Answers
    • 7 Best Answers
    • 577 Points
    View Profile
    Gopal Mishra
    2018-12-18T21:25:11-08:00Added an answer on December 18, 2018 at 9:25 pm

    Both OPC and PPC cements are good for construction of concrete slab. OPC is the most commonly used cement in industrial and large construction, PPC is most commonly used for small residential constructions.
    PPC is used where possibilities of sulphate attack is higher as it has good sulphate resistance compared to OPC. Also pozzolana Portland cement is cheaper than ordinary Portland cement.
    OPC cement hardens faster than PPC, has higher heat of hydration and thus it requires more care in curing.

    • 3
    • Share
      Share
      • Share on Facebook
      • Share on Twitter
      • Share on LinkedIn
      • Share on WhatsApp

You must log in to add an answer.

Join for free or log in to continue reading...

Continue with Facebook
Continue with Google
or use


Forgot Password?

Need An Account, Join Here

Sidebar

Popular Articles

  • Gopal Mishra

    Types of Foundation for Buildings and their Uses [PDF]

  • Gopal Mishra

    Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results

  • Sadanandam Anupoju

    16 Types of Heavy Equipment Used in Construction

  • Gopal Mishra

    Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates

  • Padmanabhan G

    Methods of Rainwater Harvesting [PDF]: Components, Transportation, and Storage

Recent Articles

  • constructororghq

    Floor Joists: A Primer on Types, Spacing, Sizes and Benefits

  • constructororghq

    Effective Ways to Combat Construction Site Theft

  • constructororghq

    The Top Flat Roof Solutions to Keep Your Home Protected

  • constructororghq

    Avoiding Costly Flood Damage in Your New Construction Project

  • constructororghq

    The ABCs of Pipeline Pigging: Everything You Need to Know

Recent Questions

  • jkshah

    Which is the code used for the design of the RCC Bridge?

    • 1 Answer
  • AKM59

    What is the tolerance for compression test results of concrete, according to the standards?

    • 1 Answer
  • Gopal Mishra

    What must be the maximum dry density of Granular Sub Base & Wet Mix Macadam used ...

    • 1 Answer
  • Gopal Mishra

    What is the Safe Bearing Capacity values for Different Soils?

    • 1 Answer
  • Gopal Mishra

    What are the different types of handrails used in bridges?

    • 1 Answer

Explore

  • Questions
  • Ask Questions
  • Write for us
  • Artificial Intelligence
  • Sustainability
  • Building
    • Brick Masonry
    • Building Materials
    • Building Tips
    • Formwork/Shuttering
  • Concrete
    • Concrete Admixtures
    • Cement
    • Concrete Cracks
    • Concrete Properties
  • Construction
    • Construction Equipments
    • Construction Management
    • Construction Project
    • Estimating & Costing
  • How To Guide
    • Material Estimation
    • Repair/Protection Guide
    • Material Testing Guide
    • Mix Design Guide
    • Rate Analysis
  • Geotechnical
    • Foundation Engineering
    • Ground Improvement
  • Structural Engineering
    • Strengthening of Structure
    • Structual Inspection
    • Structural Detailing
  • Surveying
  • Tips

Footer

  • Home
  • About Us
  • Contact Us
  • Privacy Policy
  • Terms & Conditions
  • Ask Questions
  • Write for us
  • Popular Questions
  • Facebook
  • Instagram
  • Twitter
  • Telegram

© 2009-2021 The Constructor. All Rights Reserved.