Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin

The effects of addition rice husk ash on the mechanical properties of blended cement containing metakaolin have been investigated experimentally as well as sulphate and chloride resistance of these blends. The influence of aggressive media such as 5% MgSO4 and 5% MgCl2 on the mechanical properties o...

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Main Authors: Shatat, Mohamed R., Ali, Gomaa A. M., Gouda, Gamal A., Abdallah, Mohamed H.
Format: Article
Language:English
English
Published: Borderless Science Publishing 2014
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Online Access:http://umpir.ump.edu.my/id/eprint/6435/1/Rice_Husk_Ash_for_Enhancing_Salts_Attack_Resistance_of_Blended_Cement_Containing_Metakoalin.pdf
http://umpir.ump.edu.my/id/eprint/6435/4/Rice%20Husk%20Ash%20for%20Enhancing%20Salts%20Attack%20Resistance%20of%20Blended%20Cement%20Containing%20Metakoalin.pdf
http://umpir.ump.edu.my/id/eprint/6435/
http://dx.doi.org/10.13179/canchemtrans.2014.02.03.0099
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spelling my.ump.umpir.64352016-08-25T00:58:49Z http://umpir.ump.edu.my/id/eprint/6435/ Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin Shatat, Mohamed R. Ali, Gomaa A. M. Gouda, Gamal A. Abdallah, Mohamed H. Q Science (General) The effects of addition rice husk ash on the mechanical properties of blended cement containing metakaolin have been investigated experimentally as well as sulphate and chloride resistance of these blends. The influence of aggressive media such as 5% MgSO4 and 5% MgCl2 on the mechanical properties of the prepared pozzolanic cement pastes was studied. The pastes were made from ordinary Portland cement containing 25 wt % metakaolin with partial replacement of metakaolin by different ratios (0, 5, 10, 15 and 20 wt %) of rice husk ash. All cement pastes immersed in tap water for 28 days (zero time) then immersed in aggressive media for 1, 3, 6, 9 and 12 months. The mechanical properties were measured by determination of the compressive strength. Total sulphate and chloride contents at each curing time in the aggressive mediums up to one year as well as their physico-chemical properties were monitored periodically and analyzed by XRD, DTA and visual inspection. The results showed that, the partial replacement of metakaolin by 10 wt % rice husk ash improves the resistance of hardened cement pastes against 5% MgSO4 attack. Whereas 15 wt % rice husk ash improves the resistance against 5% MgCl2 attack. Borderless Science Publishing 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6435/1/Rice_Husk_Ash_for_Enhancing_Salts_Attack_Resistance_of_Blended_Cement_Containing_Metakoalin.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/6435/4/Rice%20Husk%20Ash%20for%20Enhancing%20Salts%20Attack%20Resistance%20of%20Blended%20Cement%20Containing%20Metakoalin.pdf Shatat, Mohamed R. and Ali, Gomaa A. M. and Gouda, Gamal A. and Abdallah, Mohamed H. (2014) Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin. Canadian Chemical Transactions, 2 (3). pp. 274-285. ISSN 2291-6458 (Print); 2291-6466 (Online) http://dx.doi.org/10.13179/canchemtrans.2014.02.03.0099 DOI: 10.13179/canchemtrans.2014.02.03.0099
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
English
topic Q Science (General)
spellingShingle Q Science (General)
Shatat, Mohamed R.
Ali, Gomaa A. M.
Gouda, Gamal A.
Abdallah, Mohamed H.
Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin
description The effects of addition rice husk ash on the mechanical properties of blended cement containing metakaolin have been investigated experimentally as well as sulphate and chloride resistance of these blends. The influence of aggressive media such as 5% MgSO4 and 5% MgCl2 on the mechanical properties of the prepared pozzolanic cement pastes was studied. The pastes were made from ordinary Portland cement containing 25 wt % metakaolin with partial replacement of metakaolin by different ratios (0, 5, 10, 15 and 20 wt %) of rice husk ash. All cement pastes immersed in tap water for 28 days (zero time) then immersed in aggressive media for 1, 3, 6, 9 and 12 months. The mechanical properties were measured by determination of the compressive strength. Total sulphate and chloride contents at each curing time in the aggressive mediums up to one year as well as their physico-chemical properties were monitored periodically and analyzed by XRD, DTA and visual inspection. The results showed that, the partial replacement of metakaolin by 10 wt % rice husk ash improves the resistance of hardened cement pastes against 5% MgSO4 attack. Whereas 15 wt % rice husk ash improves the resistance against 5% MgCl2 attack.
format Article
author Shatat, Mohamed R.
Ali, Gomaa A. M.
Gouda, Gamal A.
Abdallah, Mohamed H.
author_facet Shatat, Mohamed R.
Ali, Gomaa A. M.
Gouda, Gamal A.
Abdallah, Mohamed H.
author_sort Shatat, Mohamed R.
title Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin
title_short Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin
title_full Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin
title_fullStr Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin
title_full_unstemmed Rice Husk Ash for Enhancing Salts Attack Resistance of Blended Cement Containing Metakoalin
title_sort rice husk ash for enhancing salts attack resistance of blended cement containing metakoalin
publisher Borderless Science Publishing
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/6435/1/Rice_Husk_Ash_for_Enhancing_Salts_Attack_Resistance_of_Blended_Cement_Containing_Metakoalin.pdf
http://umpir.ump.edu.my/id/eprint/6435/4/Rice%20Husk%20Ash%20for%20Enhancing%20Salts%20Attack%20Resistance%20of%20Blended%20Cement%20Containing%20Metakoalin.pdf
http://umpir.ump.edu.my/id/eprint/6435/
http://dx.doi.org/10.13179/canchemtrans.2014.02.03.0099
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score 13.211869