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EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS

Yıl 2010, Cilt: 11 Sayı: 1, 29 - 39, 05.08.2016

Öz

Pozzolans are mineral-based materials that are not cementitious on their own, but gain cementitious properties when they are combined with lime and cement and react with water. Studies are in rapid progress to enhance performance in concrete made with pozzolanic cements. In this experimental study, cement paste specimens of 40x40x160 mm were cured in water and then kept in MgSO4 solution to examine their 7- and 28-day compressive strengths and XRD and SEM images. An examination of the chemical and physical changes in the specimens cured in water and MgSO4 solution revealed that the specimens blended with 15% zeolite and containing superplasticizers had a slightly higher compressive strength than the specimens cured in MgSO4 solution. This points out to the high pozzolanic activity and to the fact that 15% admixture rate made zeolite-blended specimens resistant against MgSO4 solution. Consequently, zeolite is converted into Calcium Silicate Hydrate (C-S-H) composites after binding the portlandite, Ca(OH)2, content in cement. Therefore, it could be argued that cements prevent corrosion, decrease the permeability of concrete, and improves its resistance against sulfate environments. The most characteristic aspect of the study is that the specimens were placed in MgSO4 solution on the 1st day. In this work, images which have different frame length are modeled by KLT (Karhunen Loeve Transform). PSNR is used as the performance criteria. It has been shown that, short frame length performs better than long frame length in image data compression.

Kaynakça

  • Albayrak. M, “http://dx.doi.org/10.1016/j.buildenv.2006.08.003.”, 2006.
  • ASTM C 109, Test Method For Compressive Strength Of Hydraulic Cement Mortars, Annual Book of ASTM Standarts,1993.
  • ASTM C 125, Standard Terminology Relating to Concrete and Concrete Aggregates, Annual Book of ASTM Standards, 1994.
  • ASTM C 618, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, Annual Book of ASTM Standards, 1994.
  • DPT, Diğer Endüstri Mineralleri, 7 th Five-Year Development Plan, Report of the Specialization Commission, vol. 1, Ankara, 1996.
  • Erdoğan, T.Y., Concrete, METU Press Publishing Company, Turkey, 2007.
  • Fen, S, Investigation of Suitability as an admixtures Pozzolanic Zeolite at Cement, Masters Thesis, Mustafa Kemal University Ingenierung and Architekture Faculty, Hatay 2007 (in Turkish).
  • Feng, N.Q., Jia, H., Chen, E., Study on the Suppression Effect of Natural Zeolite on Expansion of Concrete Due to Alkali – aggregate Reaction”, Magazine of Concrete Research, Vol. 50, pp. 17 – 24, 1998.
  • Feng, N.Q., Li, Z., G., Zang, X. W., High – strength and Flowing Concrete with a Zeolite Mineral Admixture, Cement and Aggregates, ASTM. Vol. 12, pp. 61–69, 1990.
  • Hay, R.I., Geological Occurrence of Zeolites, University of California, pp 135-143, Berkeley, U.S.A. 1976.
  • Kibaroğlu,U.,http://us.geocities.com/ukibaroglu/calismalar/zeolit.htm#_Doğal_Zeolitlerin_Kullanım #_Doğal_Zeolitlerin_Kullanım, 2007.
  • Kocakuşak, S., Doğal Zeolitler ve Uygulama Alanları, Materials and Chemical Technologies Research Institute, TÜBİTAK Marmara Research Center, Report Nr: KM 362, Kocaeli, 2001. Mehta, P. K., Studies on Blended Cements Containing Santorin Earth, Cement and Concrete Research, Vol. 11. pp. 507–518, 1981.
  • Mumpton, F., Natural Zeolites a Nev Industrial Mineral Commodity, State University Collage, Brocfort, Newyork, U.S.A., 1976.
  • Poone, C. S., Lam, L., Kou, S. C., Lin, Z. S., A Study on the Hydration Rate of Natural Zeolite Blended Cements, Construction and Building Materials, Vol. 13, pp. 427–432, 1999.
  • Report nr 0411, TCMB, Çimentonun mikro yapısı, Ankara. Smolka H.G., Schwuger M.J., Cleaning Action of Nature Zeolites, Zeolite 1976 Conference, Tucson, Ariz, 1976.
  • TS 25, Natural Pozzolan (Trass) For Use in Cement And Concrete - Definitions, Requirements And Conformity Criteria, Turkish Standards Institute, December 2008.
  • TS EN 196-1, Methods of testing cement-Part 1: Determination of strength, Turkish Standards Institute, March 2002.
  • TS EN 197-1, Cement- Part 1: Compositions and conformity criteria for common cements, Turkish Standards Institute, March 2002.
  • Yücel, H., Zeolitler ve Uygulama Alanları, A Paper Presented at the 3rd National Clay Symposium, 391–402, 1990.
Yıl 2010, Cilt: 11 Sayı: 1, 29 - 39, 05.08.2016

Öz

Kaynakça

  • Albayrak. M, “http://dx.doi.org/10.1016/j.buildenv.2006.08.003.”, 2006.
  • ASTM C 109, Test Method For Compressive Strength Of Hydraulic Cement Mortars, Annual Book of ASTM Standarts,1993.
  • ASTM C 125, Standard Terminology Relating to Concrete and Concrete Aggregates, Annual Book of ASTM Standards, 1994.
  • ASTM C 618, Standard Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete, Annual Book of ASTM Standards, 1994.
  • DPT, Diğer Endüstri Mineralleri, 7 th Five-Year Development Plan, Report of the Specialization Commission, vol. 1, Ankara, 1996.
  • Erdoğan, T.Y., Concrete, METU Press Publishing Company, Turkey, 2007.
  • Fen, S, Investigation of Suitability as an admixtures Pozzolanic Zeolite at Cement, Masters Thesis, Mustafa Kemal University Ingenierung and Architekture Faculty, Hatay 2007 (in Turkish).
  • Feng, N.Q., Jia, H., Chen, E., Study on the Suppression Effect of Natural Zeolite on Expansion of Concrete Due to Alkali – aggregate Reaction”, Magazine of Concrete Research, Vol. 50, pp. 17 – 24, 1998.
  • Feng, N.Q., Li, Z., G., Zang, X. W., High – strength and Flowing Concrete with a Zeolite Mineral Admixture, Cement and Aggregates, ASTM. Vol. 12, pp. 61–69, 1990.
  • Hay, R.I., Geological Occurrence of Zeolites, University of California, pp 135-143, Berkeley, U.S.A. 1976.
  • Kibaroğlu,U.,http://us.geocities.com/ukibaroglu/calismalar/zeolit.htm#_Doğal_Zeolitlerin_Kullanım #_Doğal_Zeolitlerin_Kullanım, 2007.
  • Kocakuşak, S., Doğal Zeolitler ve Uygulama Alanları, Materials and Chemical Technologies Research Institute, TÜBİTAK Marmara Research Center, Report Nr: KM 362, Kocaeli, 2001. Mehta, P. K., Studies on Blended Cements Containing Santorin Earth, Cement and Concrete Research, Vol. 11. pp. 507–518, 1981.
  • Mumpton, F., Natural Zeolites a Nev Industrial Mineral Commodity, State University Collage, Brocfort, Newyork, U.S.A., 1976.
  • Poone, C. S., Lam, L., Kou, S. C., Lin, Z. S., A Study on the Hydration Rate of Natural Zeolite Blended Cements, Construction and Building Materials, Vol. 13, pp. 427–432, 1999.
  • Report nr 0411, TCMB, Çimentonun mikro yapısı, Ankara. Smolka H.G., Schwuger M.J., Cleaning Action of Nature Zeolites, Zeolite 1976 Conference, Tucson, Ariz, 1976.
  • TS 25, Natural Pozzolan (Trass) For Use in Cement And Concrete - Definitions, Requirements And Conformity Criteria, Turkish Standards Institute, December 2008.
  • TS EN 196-1, Methods of testing cement-Part 1: Determination of strength, Turkish Standards Institute, March 2002.
  • TS EN 197-1, Cement- Part 1: Compositions and conformity criteria for common cements, Turkish Standards Institute, March 2002.
  • Yücel, H., Zeolitler ve Uygulama Alanları, A Paper Presented at the 3rd National Clay Symposium, 391–402, 1990.
Toplam 19 adet kaynakça vardır.

Ayrıntılar

Diğer ID JA55ZP43ZP
Bölüm Makaleler
Yazarlar

Sabit Oymael Bu kişi benim

Yayımlanma Tarihi 5 Ağustos 2016
Yayımlandığı Sayı Yıl 2010 Cilt: 11 Sayı: 1

Kaynak Göster

APA Oymael, S. (2016). EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS. Trakya Üniversitesi Fen Bilimleri Dergisi, 11(1), 29-39.
AMA Oymael S. EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS. Trakya Univ J Sci. Ağustos 2016;11(1):29-39.
Chicago Oymael, Sabit. “EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS”. Trakya Üniversitesi Fen Bilimleri Dergisi 11, sy. 1 (Ağustos 2016): 29-39.
EndNote Oymael S (01 Ağustos 2016) EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS. Trakya Üniversitesi Fen Bilimleri Dergisi 11 1 29–39.
IEEE S. Oymael, “EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS”, Trakya Univ J Sci, c. 11, sy. 1, ss. 29–39, 2016.
ISNAD Oymael, Sabit. “EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS”. Trakya Üniversitesi Fen Bilimleri Dergisi 11/1 (Ağustos 2016), 29-39.
JAMA Oymael S. EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS. Trakya Univ J Sci. 2016;11:29–39.
MLA Oymael, Sabit. “EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS”. Trakya Üniversitesi Fen Bilimleri Dergisi, c. 11, sy. 1, 2016, ss. 29-39.
Vancouver Oymael S. EXAMINATIONS OF THE INTERNAL STRUCTURE OF ZEOLITE-BLENDED CEMENTS. Trakya Univ J Sci. 2016;11(1):29-3.