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Studies on fresh properties of limestone calcined clay cement concrete
Journal
Indian Concrete Journal
ISSN
00194565
Date Issued
2021-10-01
Author(s)
Dhanapal, Sendhil Vigneshwar
Nanthagopalan, Prakash
Abstract
Limestone calcined clay cement (LC3) is one of the sustainable cementitious materials with a promising future. In the present investigation, attempts were made to assess the fresh state properties of LC3 concrete and compared with fly ash based concretes of similar strength ranges (30 to 50 MPa). Fresh concrete properties such as density, slump, slump retention, rheology and setting time were evaluated. From the results, it is evident that LC3 concrete demands relatively higher SP dosage and paste volume than fly ash based concretes for a given slump requirement. Despite higher SP demand, the slump retention and early age strength of LC3 concretes are better than fly ash based concretes. Rheological behavior of LC3 concretes especially with relatively higher viscosity yield better potential against segregation during pumping. It is possible to engineer the rheology of LC3 based concretes to have comparable rheological values for specified applications.
Volume
95
Subjects