Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement

A study of compressive strength of concrete with millet husk ash (MHA) as partial replacement for ordinary Portland cement (OPC) is presented. The strength characteristics was investigated by casting and testing 54 specimen cubes sizing 100 mm x 100 mm x 100 mm for varied percentage replacements of...

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Main Authors: S.M. Auta, A.J. Shiwua, T.Y. Tsado
Format: Article
Language:English
Published: Peter the Great St. Petersburg Polytechnic University 2015-11-01
Series:Инженерно-строительный журнал
Subjects:
Online Access:http://www.engstroy.spb.ru/eng/index_2015_07/08.html
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author S.M. Auta
A.J. Shiwua
T.Y. Tsado
author_facet S.M. Auta
A.J. Shiwua
T.Y. Tsado
author_sort S.M. Auta
collection DOAJ
description A study of compressive strength of concrete with millet husk ash (MHA) as partial replacement for ordinary Portland cement (OPC) is presented. The strength characteristics was investigated by casting and testing 54 specimen cubes sizing 100 mm x 100 mm x 100 mm for varied percentage replacements of cement (0 %, 10 % and 20 %) with water cement ratio of 0.65. These cubes were cured for 7 days, 14 days, 28 days and 35 days to target strength design of 25 N/mm2 at 35 days crushing. The result shows that at 35 days the compressive strength for 0 %, 10 % and 20 % replacements are 32.00 N/mm2, 25.56 N/mm2, and 23.18 N/mm2, respectively. It is clear that MHA as a pozzolanic material can be incorporated into cement in amounts of no more than 10 % replacement in order to develop a good and hardened concrete.
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spelling doaj.art-d28b9586e5bd4dd9a6afef9f92b05f012022-12-22T03:39:47ZengPeter the Great St. Petersburg Polytechnic UniversityИнженерно-строительный журнал2071-47262071-03052015-11-0159747910.5862/MCE.59.8Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cementS.M. AutaA.J. ShiwuaT.Y. TsadoA study of compressive strength of concrete with millet husk ash (MHA) as partial replacement for ordinary Portland cement (OPC) is presented. The strength characteristics was investigated by casting and testing 54 specimen cubes sizing 100 mm x 100 mm x 100 mm for varied percentage replacements of cement (0 %, 10 % and 20 %) with water cement ratio of 0.65. These cubes were cured for 7 days, 14 days, 28 days and 35 days to target strength design of 25 N/mm2 at 35 days crushing. The result shows that at 35 days the compressive strength for 0 %, 10 % and 20 % replacements are 32.00 N/mm2, 25.56 N/mm2, and 23.18 N/mm2, respectively. It is clear that MHA as a pozzolanic material can be incorporated into cement in amounts of no more than 10 % replacement in order to develop a good and hardened concrete.http://www.engstroy.spb.ru/eng/index_2015_07/08.htmlcompressive strengthconcrete aggregatesmillet husk ashreplacement for Portland cement
spellingShingle S.M. Auta
A.J. Shiwua
T.Y. Tsado
Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement
Инженерно-строительный журнал
compressive strength
concrete aggregates
millet husk ash
replacement for Portland cement
title Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement
title_full Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement
title_fullStr Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement
title_full_unstemmed Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement
title_short Compressive strength of concrete with millet husk ash (MHA) as a partial replacement for cement
title_sort compressive strength of concrete with millet husk ash mha as a partial replacement for cement
topic compressive strength
concrete aggregates
millet husk ash
replacement for Portland cement
url http://www.engstroy.spb.ru/eng/index_2015_07/08.html
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AT ajshiwua compressivestrengthofconcretewithmillethuskashmhaasapartialreplacementforcement
AT tytsado compressivestrengthofconcretewithmillethuskashmhaasapartialreplacementforcement