@ARTICLE{Sastry_K.V.S._Gopala_Krishna_Effect_2018,
 author={Sastry, K.V.S. Gopala Krishna and Ravitheja, A. and Reddy, T. Chandra Sekhara},
 volume={Vol. 64},
 number={No 1},
 journal={Archives of Civil Engineering},
 pages={117-131},
 howpublished={online},
 year={2018},
 publisher={WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES},
 abstract={Foundry sand waste can be utilized for the preparation of concrete as a partial replacement of sand. The strength properties of M25 grade concrete are studied with different percentages of replacement of fine aggregates by foundry sand at 0%, 10%, 20%, 30%, 40%, and 50%. The optimum percentage of foundry sand replacement in the concrete corresponding to maximum strength will be identified. Keeping this optimum percentage of foundry sand replacement as a constant, a cement replacement study with mineral admixtures such as silica fume (5%, 7.5%, 10%) and fly ash (10%, 15%, 20%,) is carried out separately. The maximum increase in strength properties as compared to conventional concrete was achieved at 40% foundry sand replacement. Test results indicated that a 40% replacement of foundry sand with silica fume showed better performance than that of fly ash. The maximum increase in strengths was observed in a mix consisting of 40% foundry sand and 10% silica fume. SEM analysis of the concrete specimens also reveals that a mix with 40% foundry sand and 10% silica fume obtained the highest strength properties compared to all other mixes due to the creation of more C-H-S gel formations and fewer pores.},
 type={Article},
 title={Effect of foundry sand and mineral admixtures on mechanical properties of concrete},
 URL={http://www.journals.pan.pl/Content/115561/PDF/08_117-131_ace-2018-0008.pdf},
 keywords={Foundry sand, fly ash, Silica fume, Strength properties, SEM analysis},
}