Performance of Limestone Calcined Clay Cement (Lc3 )
Apsa1, V Ranga Rao2
1Apsa, Structural Engineering, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Guntur District, Vaddeswaram (Andhra Pradesh), India.
2V. Ranga Rao, Structural Engineering, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Green Fields, Guntur District, Vaddeswaram (Andhra Pradesh), India.
Manuscript received on 30 April 2019 | Revised Manuscript received on 14 May 2019 | Manuscript Published on 28 May 2019 | PP: 260-265 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F10480476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: As world population is expected to reach 9million by 2050, infrastructural changes are done which require huge quantity of cement, as it produces 60 62to % of CO2 during calcination, there is a need for alternative binders. As cement demand increases, CO2 emissions increases, this might become a threat to atmosphere. LC3 is a modern cement which is a blend of 50% clinker, 15% limestone, 30% calcined clay and 5% gypsum. Here, clinker is reduced by 50% there by CO2 emission can be reduced by 30%. LC3 is a low carbon, sustainable, cost effective and double the efficiency of existing cement factory. The increase in demand of cement in coming decades might not be reached with existing alternative binders of Fly ash and GGBS, so limestone and clay are the best supplementary Cementious material that are naturally available. As LC3 has less workability, super plasticizers need to be used. In this paper, physical properties of LC3 were studied by varying clinker and clay content i.e. 40% clinker, 40% clay;50% clinker,30% clay and 60%clinker,20%clay which were calcined at 600°c in muffle furnace by fixing the proportions of limestone 15% and gypsum 5% by adding super plasticizer(pc20) and the results were compared with that of OPC concrete. Durability was also studied by exposing LC3 cubes to Acid attack and sulphate attack and compared with that of OPC concrete.
Keywords: LC3, Clinker, Limestone, Calcined Clay, Compressive Strength, Durability.
Scope of the Article: High Performance Concrete