Evolution of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash based concrete

Moruf Olalekan Yusuf; Megat Azmi Megat Johari; Zainal Arifin Ahmad; Mohammad Maslehuddin

doi:10.1016/j.matdes.2013.09.047

Evolution of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash based concrete

Moruf Olalekan Yusuf
, Megat Azmi Megat Johari^*
, Zainal Arifin Ahmad
, Mohammad Maslehuddin

^*Corresponding author for this work

Applied Research Center for Metrology, Standards and Testing

Research output: Contribution to journal › Article › peer-review

148 Scopus citations

Abstract

The two locally available pozzolanic solid wastes (PMs) - ultrafine palm oil fuel ash (UPOFA) and ground blast furnace slag (GBFS) - have been used as base materials to develop high alkaline activated strength concrete. The samples were prepared with combined aggregate modulus of 3.66 and at constant GBFS/PM that varied from 0 to 0.3. The combined alkaline activators (CAA) (Na₂SiO₃ and NaOH) to PMs ratios (CAA/PMs), temperature and curing durations also varied as 0.45-0.55, 25-90°C, and 6-24h, respectively. The findings revealed that the strength at 3-day and 28-day were 69.13 and 71.2MPa, respectively and the respective optimum GBFS/PM, CAA/PM, temperature and curing duration are 0.2, 0.5, 60°C and 24h. GBFS was found to contribute to the soluble Ca, heterogeneity, and amorphousity of the product. This eventually facilitated the formation of suspected calcium-silicate-hydrate and the geopolymer products of Ca/Na-aluminosilicate-hydrate (C/NASH) that enhanced the compressive-strength results.

Original language	English
Pages (from-to)	387-393
Number of pages	7
Journal	Materials and Design
Volume	55
DOIs	https://doi.org/10.1016/j.matdes.2013.09.047
State	Published - Mar 2014

Bibliographical note

Funding Information:
The authors gratefully acknowledge the Universiti Sains Malaysia (USM) for providing the financial support through the Research University (1001/PAWAM/814103) Scheme for undertaking the research work. Thanks are also due to United Palm Oil Industries and Southern Steel Company for providing the palm oil fuel ash and slag, respectively. The supports from Center of Engineering Research (CER) of Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia are specially acknowledged.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 11 Sustainable Cities and Communities

Keywords

Calcium-silicate-hydrate
Compressive-strength
Concrete
Geopolymer
Ground-blast-furnace-slag
Palm-oil-fuel-ash

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matdes.2013.09.047

Cite this

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title = "Evolution of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash based concrete",

abstract = "The two locally available pozzolanic solid wastes (PMs) - ultrafine palm oil fuel ash (UPOFA) and ground blast furnace slag (GBFS) - have been used as base materials to develop high alkaline activated strength concrete. The samples were prepared with combined aggregate modulus of 3.66 and at constant GBFS/PM that varied from 0 to 0.3. The combined alkaline activators (CAA) (Na2SiO3 and NaOH) to PMs ratios (CAA/PMs), temperature and curing durations also varied as 0.45-0.55, 25-90°C, and 6-24h, respectively. The findings revealed that the strength at 3-day and 28-day were 69.13 and 71.2MPa, respectively and the respective optimum GBFS/PM, CAA/PM, temperature and curing duration are 0.2, 0.5, 60°C and 24h. GBFS was found to contribute to the soluble Ca, heterogeneity, and amorphousity of the product. This eventually facilitated the formation of suspected calcium-silicate-hydrate and the geopolymer products of Ca/Na-aluminosilicate-hydrate (C/NASH) that enhanced the compressive-strength results.",

keywords = "Calcium-silicate-hydrate, Compressive-strength, Concrete, Geopolymer, Ground-blast-furnace-slag, Palm-oil-fuel-ash",

author = "Yusuf, \{Moruf Olalekan\} and \{Megat Johari\}, \{Megat Azmi\} and Ahmad, \{Zainal Arifin\} and Mohammad Maslehuddin",

note = "Funding Information: The authors gratefully acknowledge the Universiti Sains Malaysia (USM) for providing the financial support through the Research University (1001/PAWAM/814103) Scheme for undertaking the research work. Thanks are also due to United Palm Oil Industries and Southern Steel Company for providing the palm oil fuel ash and slag, respectively. The supports from Center of Engineering Research (CER) of Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia are specially acknowledged.",

year = "2014",

month = mar,

doi = "10.1016/j.matdes.2013.09.047",

language = "English",

volume = "55",

pages = "387--393",

}

TY - JOUR

T1 - Evolution of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash based concrete

AU - Yusuf, Moruf Olalekan

AU - Megat Johari, Megat Azmi

AU - Ahmad, Zainal Arifin

AU - Maslehuddin, Mohammad

N1 - Funding Information: The authors gratefully acknowledge the Universiti Sains Malaysia (USM) for providing the financial support through the Research University (1001/PAWAM/814103) Scheme for undertaking the research work. Thanks are also due to United Palm Oil Industries and Southern Steel Company for providing the palm oil fuel ash and slag, respectively. The supports from Center of Engineering Research (CER) of Research Institute, King Fahd University of Petroleum and Minerals (KFUPM), Dhahran, Saudi Arabia are specially acknowledged.

PY - 2014/3

Y1 - 2014/3

N2 - The two locally available pozzolanic solid wastes (PMs) - ultrafine palm oil fuel ash (UPOFA) and ground blast furnace slag (GBFS) - have been used as base materials to develop high alkaline activated strength concrete. The samples were prepared with combined aggregate modulus of 3.66 and at constant GBFS/PM that varied from 0 to 0.3. The combined alkaline activators (CAA) (Na2SiO3 and NaOH) to PMs ratios (CAA/PMs), temperature and curing durations also varied as 0.45-0.55, 25-90°C, and 6-24h, respectively. The findings revealed that the strength at 3-day and 28-day were 69.13 and 71.2MPa, respectively and the respective optimum GBFS/PM, CAA/PM, temperature and curing duration are 0.2, 0.5, 60°C and 24h. GBFS was found to contribute to the soluble Ca, heterogeneity, and amorphousity of the product. This eventually facilitated the formation of suspected calcium-silicate-hydrate and the geopolymer products of Ca/Na-aluminosilicate-hydrate (C/NASH) that enhanced the compressive-strength results.

AB - The two locally available pozzolanic solid wastes (PMs) - ultrafine palm oil fuel ash (UPOFA) and ground blast furnace slag (GBFS) - have been used as base materials to develop high alkaline activated strength concrete. The samples were prepared with combined aggregate modulus of 3.66 and at constant GBFS/PM that varied from 0 to 0.3. The combined alkaline activators (CAA) (Na2SiO3 and NaOH) to PMs ratios (CAA/PMs), temperature and curing durations also varied as 0.45-0.55, 25-90°C, and 6-24h, respectively. The findings revealed that the strength at 3-day and 28-day were 69.13 and 71.2MPa, respectively and the respective optimum GBFS/PM, CAA/PM, temperature and curing duration are 0.2, 0.5, 60°C and 24h. GBFS was found to contribute to the soluble Ca, heterogeneity, and amorphousity of the product. This eventually facilitated the formation of suspected calcium-silicate-hydrate and the geopolymer products of Ca/Na-aluminosilicate-hydrate (C/NASH) that enhanced the compressive-strength results.

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M3 - Article

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JF - Materials and Design

ER -

Evolution of alkaline activated ground blast furnace slag-ultrafine palm oil fuel ash based concrete

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

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