This preprint is under consideration at Environmental Science and Pollution Research. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Naraindas Bheel
Universiti Teknologi Petronas: Universiti Teknologi PETRONAS
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1691-9735
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The carbon dioxide emissions from Portland cement production have increased significantly and Portland cement is the main binder used in self-compacting concrete, so there is an urgent need to find environmental friendly materials as alternative resources. In most developing countries, the availability of huge amounts of agricultural waste has paved the way for studying how these materials can be processed into self-compacting concrete as binder and aggregates compositions. Therefore, this experimental program was carried out to study the properties of self-compacting concrete (SCC) made with local metakaolin, coal bottom ash separately and combined. Total 25 mixes were prepared with four mixes as 5,10, 15 and 20% replacement of cement with metakaolin, four mixes as 10, 20, 30 and 40% of coal bottom ash as partial replacement of fine aggregates separately and 16 mixes prepared combined with metakaolin and coal bottom ash. The fresh properties were explored by slump flow, T50 flow, V-funnel, L-box, J-Ring sieve segregation test. Moreover, the hardened properties of concrete were performed for compressive, splitting tensile and flexural strength and permeability of SCC mixtures. Fresh concrete test results show that even if no viscosity modifier is required, satisfactory fresh concrete properties of SCC can be obtained by replacing the fine aggregate with coal bottom ash content. At 15% replacement of cement with local metakaolin is optimum and gave better results as compared to control SCC. At 30% replacement of fine aggregate is optimum and gave better results as compared to control SCC. In the combined mix 10% replacement of cement with metakaolin combined with 30% replacement of fine aggregate with coal bottom ash is optimum and gave better results as compared to control SCC.
Keywords
Metakaolin, Cement substitute material, Coal bottom ash, sand substitute ingredient, SCC, Fresh and hardened properties of SSC, Embodied carbon, Sustainability.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Loading...
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 28 Apr, 2021
No community comments so far
Reviewers invited
Invitations sent on 25 Apr, 2021
Reviews received
Received 25 Apr, 2021
Editor assigned
On 18 Apr, 2021
First submitted
On 15 Apr, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Learn more about our company.
This preprint is under consideration at Environmental Science and Pollution Research. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Naraindas Bheel
Universiti Teknologi Petronas: Universiti Teknologi PETRONAS
Corresponding Author
ORCiD: https://orcid.org/0000-0003-1691-9735
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 28 Apr, 2021
No community comments so far
Reviewers invited
Invitations sent on 25 Apr, 2021
Reviews received
Received 25 Apr, 2021
Editor assigned
On 18 Apr, 2021
First submitted
On 15 Apr, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The carbon dioxide emissions from Portland cement production have increased significantly and Portland cement is the main binder used in self-compacting concrete, so there is an urgent need to find environmental friendly materials as alternative resources. In most developing countries, the availability of huge amounts of agricultural waste has paved the way for studying how these materials can be processed into self-compacting concrete as binder and aggregates compositions. Therefore, this experimental program was carried out to study the properties of self-compacting concrete (SCC) made with local metakaolin, coal bottom ash separately and combined. Total 25 mixes were prepared with four mixes as 5,10, 15 and 20% replacement of cement with metakaolin, four mixes as 10, 20, 30 and 40% of coal bottom ash as partial replacement of fine aggregates separately and 16 mixes prepared combined with metakaolin and coal bottom ash. The fresh properties were explored by slump flow, T50 flow, V-funnel, L-box, J-Ring sieve segregation test. Moreover, the hardened properties of concrete were performed for compressive, splitting tensile and flexural strength and permeability of SCC mixtures. Fresh concrete test results show that even if no viscosity modifier is required, satisfactory fresh concrete properties of SCC can be obtained by replacing the fine aggregate with coal bottom ash content. At 15% replacement of cement with local metakaolin is optimum and gave better results as compared to control SCC. At 30% replacement of fine aggregate is optimum and gave better results as compared to control SCC. In the combined mix 10% replacement of cement with metakaolin combined with 30% replacement of fine aggregate with coal bottom ash is optimum and gave better results as compared to control SCC.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Figure 12
Figure 13
Figure 14
Figure 15
Figure 16
Loading...