Araştırma Makalesi

Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties

Cilt: 2 Sayı: 1 31 Mart 2020
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Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties

Öz

In the experimental work, recycling by inclusion of class F fly ash in mortar was investigated in terms of workability and strength of mortar to fabricate an environment friendly construction material. For this aim, class F fly ash were used as cement replacement at 10%, 30%, 50% and 70% ratios in mortar. Water-binder ratios were 0.40, 0.45 and 0.50. A total of 15 different mortar mixtures including control Portland cement and fly ash mortar were produced. Workability of fresh mortar was measured using mini flow testing. Flexural and compressive strength of hardened standard sized samples were measured after completion of their specified curing time at 1d, 3d, 7d 28d, 3m and 6m. Experimental results showed that inclusion of fly ash in mortar improved workability with respect to control Portland cement mortar. Recycling low amount of fly ash in mortar did not show detrimental but beneficial influence on strength properties of mortar. However, employing high amount of fly ash in mortar reduced flexural and compressive strength at early ages, however, the reduction in flexural and compressive strengths were remedied due to pozzolanic reaction of fly ash at longer curing time compared to control Portland cement mortar. It was concluded that current fly ash was a suitable pozzolanic material to be recycled by replacement with Portland cement in mortar to manufacture clean construction material in terms of workability and strength concern.

Anahtar Kelimeler

Kaynakça

  1. [1] ASTM - C618–8a, (2009). ASTM - C618–8a, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, ASTM International, USA .
  2. [2] Hemalatha, T., Ramaswamy, T. A., (2017). A review on fly ash characteristics - towards promoting high volume utilization in developing sustainable concrete, Journal of Cleaner Production 147, 546-559.
  3. [3] Papadakis, V.G., S., Tsimas, S., (2002). Supplementary cementing materials in concrete: Part I: efficiency and design, Cement and Concrete Research, 32, 1525-1532. [4] Papadakis, V.G., Antiohos, S. (2002). Tsimas, Supplementary cementing materials in concrete: Part II: A fundamental estimation of the efficiency factor, Cement and Concrete Research, 32, 1533-1538.
  4. [5] Rafieizonooz, M., Mirza, J., Salim, M.R., Hussin, M.W., & Khankhaj, E., (2006). Investigation of coal bottom ash and fly ash in concrete as replacement for sand and cement, Construction and Building Materials, 116, 15-24.
  5. [6] Maslehuddin, M., (1989). Effect of sand replacement on the early-age strength, gain and long-term corrosion-resisting characteristics of fly ash concrete, ACI Mater. J., 86, 58 – 62.
  6. [7] Yao, Z.T., Ji, X.S., Sarker, P.K., Tang, J.H. Ge, L.Q., Xia, M.S., & Y.Q. Xi, Y.Q., (2015). A comprehensive review on the applications of coal fly ash, Earth Sci Rev, 141, 105-121.
  7. [8] Siddique, R., (2004). Performance characteristics of high-volume Class F fly ash concrete, Cement and Concrete Research 34, 487– 493.
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Ayrıntılar

Birincil Dil

İngilizce

Konular

Mühendislik

Bölüm

Araştırma Makalesi

Yayımlanma Tarihi

31 Mart 2020

Gönderilme Tarihi

4 Mayıs 2020

Kabul Tarihi

29 Mayıs 2020

Yayımlandığı Sayı

Yıl 2020 Cilt: 2 Sayı: 1

Kaynak Göster

APA
Zakı, A., & Atiş, C. (2020). Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties. ALKÜ Fen Bilimleri Dergisi, 2(1), 34-46. https://doi.org/10.46740/alku.731687
AMA
1.Zakı A, Atiş C. Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties. ALKÜ Fen Bilimleri Dergisi. 2020;2(1):34-46. doi:10.46740/alku.731687
Chicago
Zakı, Asadullah, ve Cengiz Atiş. 2020. “Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties”. ALKÜ Fen Bilimleri Dergisi 2 (1): 34-46. https://doi.org/10.46740/alku.731687.
EndNote
Zakı A, Atiş C (01 Mart 2020) Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties. ALKÜ Fen Bilimleri Dergisi 2 1 34–46.
IEEE
[1]A. Zakı ve C. Atiş, “Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties”, ALKÜ Fen Bilimleri Dergisi, c. 2, sy 1, ss. 34–46, Mar. 2020, doi: 10.46740/alku.731687.
ISNAD
Zakı, Asadullah - Atiş, Cengiz. “Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties”. ALKÜ Fen Bilimleri Dergisi 2/1 (01 Mart 2020): 34-46. https://doi.org/10.46740/alku.731687.
JAMA
1.Zakı A, Atiş C. Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties. ALKÜ Fen Bilimleri Dergisi. 2020;2:34–46.
MLA
Zakı, Asadullah, ve Cengiz Atiş. “Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties”. ALKÜ Fen Bilimleri Dergisi, c. 2, sy 1, Mart 2020, ss. 34-46, doi:10.46740/alku.731687.
Vancouver
1.Asadullah Zakı, Cengiz Atiş. Lowering carbon foot print of Portland cement by class F fly ash substitution in mortar mixture in terms of workability and strength properties. ALKÜ Fen Bilimleri Dergisi. 01 Mart 2020;2(1):34-46. doi:10.46740/alku.731687