• SIVAGURU R P
• Selvaraj S

The manufacturing process of 1 ton Ordinary Portland Cement emits an equal amount of carbon di- oxide into the atmosphere. The carbon-di-oxide emissions perform as a silent killer in the environment under various forms. In this Backdrop, the exploration for cheaper substitute to OPC is a needful one. This paper presents the effect of Hypo sludge and Lime sludge as partial replacement of cement and Foundry sand as partial replacement of fine aggregate. Hypo sludge contains, low calcium and maximum calcium chloride and minimum amount of silica. Hypo sludge behaves like cement because of silica and magnesium properties. Concrete mix of M20grade was used in this study with Hypo sludge and Lime sludge as partial replacement of cement by 5%, 10% and 15% and foundry sand as partial replacement of fine aggregate by 10%. The compressive strength of all mix ratios are recorded and the test results concluded that partial replacement of cement and fine aggregate by 10% Hypo sludge, Lime sludge and Foundry sand exhibit an increase of about 35.97% in compressive strength after 28days of curing when compared to that of conventional concrete.

Compressive strength, foundry sand, hypo sludge, lime sludge

"UTILIZATION OF HYPO SLUDGE AND LIME SLUDGE AS PARTIAL REPLACEMENT OF CEMENT ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.40-43, June 2019, Available :http://www.jetir.org/papers/JETIR1908008.pdf

"UTILIZATION OF HYPO SLUDGE AND LIME SLUDGE AS PARTIAL REPLACEMENT OF CEMENT ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp40-43, June 2019, Available at : http://www.jetir.org/papers/JETIR1908008.pdf