Permeation Properties of Geopolymer Concrete Made with Partial Replacement of Recycled Coarse Aggregates
T. Srinivas1, P. Manoj Anand2

1Dr. T. Srinivas, Department of Civil Engineering, GRIET, Hyderabad, India.
2P. Manoj Anand, Department of Civil Engineering, GRIET, Hyderabad, India. 

Manuscript received on September 16, 2019. | Revised Manuscript received on 24 September, 2019. | Manuscript published on October 10, 2019. | PP: 2987-2990 | Volume-8 Issue-12, October 2019. | Retrieval Number: K23170981119/2019©BEIESP | DOI: 10.35940/ijitee.K2317.1081219
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Abstract: Concrete is themost generally used construction material inthe world due to, wonderful durability, straight forward accessibility of its constituent materials, its low price, straightforward formability to any shape, etc. There are many ecological problems connected with the manufacture of OPC, at a similar time accessibility of natural coarse aggregate is additionally changing into scarcity and on the other side, the disposal of C&D wastes is additionally changing into a significant environmental issue . Hence, it is unavoidable to find an alternative material to the existing most resource consuming Portland cement and natural aggregates. GPC is a construction material of innovation concrete which shall be produced by the chemical action of inorganic molecules and made up of fly ash, GGBS, FA, CA, and an alkaline solution of NaOH and Na2SiO3 , plays a significant role in its environmental control of greenhouse effects. The main objective of this paper is to study the permeation properties such permeability, sorptivity etc.,of geopolymer concrete of grade G40 when natural coarse aggregate is replaced with recycled aggregate in different proportions such as 10%, 20%, 30%, and 40% and also to compare the results of geopolymer concrete made with recycled coarse aggregates with geopolymer concrete of natural coarse aggregate and controlled concrete of respective grade. It has been observed that the permeability and sorptivity properties are better in geopolymer concrete, both in natural coarse aggregate and recycled coarse aggregate up to 30% replacement when it is compared with the same grade of controlled concrete respectively.
Keywords: Geo-polymer Concrete, Recycled Aggregate, Sorpitivity, Water Permeability, Permeation Properties.
Scope of the Article: Concrete Structures