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Effect Of Grinding On Strength And Durability Of Ggbfs - Based Concrete

Submitted2014-08-29
Last Update2014-10-08
TitleEffect Of Grinding On Strength And Durability Of Ggbfs - Based Concrete
Author(s)Author #1
Author title:
Name: Balasubramanian Karthikeyan
Org: Ph.D. Scholar, School of Civil Engineering, SASTRA UNIVERSITY, Thanjavur 613401 India
Country:
Email: bk@civil.sastra.edu

Author #2
Author title:
Name: Govindasamy Dhinakaran
Org: Professor, Center for Advanced Research in Environment, School of Civil Engineering, SASTRA UNIVERSITY, Thanjavur 613401 India.
Country:
Email: gd@civil.sastra.edu

Other Author(s)
Contact AuthorAuthor #1
Alt Email: bk@civil.sastra.edu
Telephone:
KeywordsUltra fine, Grinding, Particle size analyzer, Acid curing, Compressive strength, Sorptivity
AbstractThis paper presents laboratory investigations on the use of ultra fine ground granulated blast furnace slag (UFGGBFS) as a mineral admixture in concrete and cement mortar cubes. Ground granulated blast furnace slag (GGBFS) is available in plenty as a waste product resulting from steel industries and posing disposal problems subsequently leading to environmental problems. GGBFS obtained in the present work was subjected to grinding for two hours using agate pestle mortar and the effect of grinding on size was monitored by testing particle size with the help of a particle size analyzer, where reduction in size was observed. The sample was later used as a partial substitute to cement. A high strength concrete mix with a characteristic compressive strength of 40 MPa was selected for the present study, and cement was replaced with UFGGBFS in three different percentages; namely 3, 5 and 7%. Compressive strength of mortar and strength and sorptivity characteristics of concrete made with UFGGBFS were studied. Test results showed that replacement of cement with 5% UFGGBFS yielded better resistance to compression and sorption in normal and aggressive environments compared to control specimens.
Paperview paper 2818.pdf (782KB)

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