Activation of Granulated Blast-Furnace Slag Using Lime Rich Sludge in Presence and Absence of Rice Husk Ash
Saleh Abd El Aleem Mohamed
Saleh Abd El Aleem Mohamed, Department of Chemistry Science, Fayoum University, Fayoum Egypt.
Manuscript received on 17 August 2015 | Revised Manuscript received on 25 August 2015 | Manuscript Published on 30 August 2015 | PP: 43-51 | Volume-5 Issue-3, August 2015 | Retrieval Number: C2169085315/15©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: These days there is an increasing emphasis on a cleaner environment and maintaining the balance of the ecosystem of the biosphere. It is generally believed that, environmental protection with zero risk and economic growth do not go hand in hand, but at the same time it is also true that, sustainable growth with environmental quality is not an unattainable goal. This work aims at studying the effect of lime rich sludge (LRS) as a byproduct of acetylene industry on the activation of granulated blast-furnace slag (GBFS). LRS was calcined at 850oC for 4h and left to cool in furnace, then slaked with water and dried at 80oC for 24h. GBFS was replaced by 10, 20 and 30 wt., % of LRS. The results showed that, as the amount of LRS increases, the combined water and free lime increase also. The compressive strength values of GBFS-LRS mixes increase with LRS content up to 20 wt., %, and then decrease at 30 wt., % LRS. In order to enhance the compressive strength of the mixture containing 30 wt., % of LRS, different amounts of rice husk ash (RHA) were added. The results indicated that, the compressive strength increases with RHA content. The results of chemical and mechanical properties of GBFS-LRS blends in presences and absence of RHA are in a good agreement with those of XRD, FTIR and TG/DTG analyses.
Keywords: Granulated Blast-Furnace Slag, Lime Rich Sludge, Rice Husk Ash, Compressive Strength.
Scope of the Article: Bio-Science and Bio-Technology