Download Learnerz IAS app from the Play Store now! Download



Superplasticizers in concrete UPSC NOTE

 Role of Superplasticizers in concrete

  • The water cement (W/C) ratio is an important factor deciding the durability of concrete. 

  • Its impermeability, strength, and durability are directly proportional to this and so this has to be kept small.

  • In normal cement pastes, when cement particles come into close contact with each other, there is a tendency for the pastes to form large ‘floes’ due to attractive forces acting between them. 

  • Because of such formation, more water than required is added

  • This increases the W/C ratio and affects the concrete’s properties.

  • These can be overcome by adding superplasticizers at the appropriate stage of mixing the ingredients of concrete

  • It helps to reduce inter-particle attraction between cement particles and to disperse the cement particles with less water

  • These superplasticizers actually form a chain of molecules and are completely absorbed into the system.

  • Superplasticizers are sulphonated melamine formaldehyde condensates or sulphonated naphthalene formaldehyde condensates

  • These are used to produce ‘flowing’ concrete in cases where placing in inaccessible locations is required.

  • They are also used in the production of high strength concrete using normal workability but a very low water/cement ratio so as to reduce the heat of hydration in mass concrete.



Amritsar,1,April 2024,301,Art & Culture,1,August 2023,251,Courses,7,Daily Current Affairs,48,December 2023,189,Disaster Management,2,Environment and Ecology,54,February 2024,228,Foundation Course,1,GDP,1,GEMS Club,1,GEMS Plus,1,Geography,67,Govt Schemes,2,GST,1,History,2,Home,3,IAS Booklist,1,Important News,71,Indian Economy,46,Indian History,2,Indian Polity,56,International Organisation,12,International Relations,58,Invasive Plant,1,January 2024,240,July 2023,281,June 2022,6,June 2023,268,March 2024,238,May 2022,17,May 2024,233,Mentorship,2,November 2023,169,October 2023,203,Places in News,2,Science & Technology,66,September 2023,205,UPSC CSE,111,
Learnerz IAS | Concept oriented UPSC Classes in Malayalam: Superplasticizers in concrete UPSC NOTE
Superplasticizers in concrete UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS PREMIUM CONTENT IS LOCKED STEP 1: Share to a social network STEP 2: Click the link on your social network Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy Table of Content