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Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete

Received: 13 September 2021     Accepted: 4 October 2021     Published: 28 October 2021
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Abstract

Super plasticizer or High range water reducer is a specific type of admixture that is used to produce low water-cement ratio high strength concrete with normal or enhanced workability. Therefore by using Super plasticizers, it became easier for contractors nowadays to place highly workable, durable, pump able concrete with higher strength, and even with less cost than using other ways to produce concrete with such properties. The effects of SPs on physical properties of hardened and fresh concrete is therefore studied in this research work by considering 1%, 2%, 3% and 4% of two types of Super plasticizers namely Conplast 430 and Dr Fixit which was referred as SP A and SP B respectively in this research. A mix ratio of 1:2:4 was used with a constant 0.5 water-cement ratio in order to determine the effect of SP on workability. A set of 72nos of 150mm x 150mm x 150mm concrete cubes specimens were casted and cured by complete immersion in water. Setting time test was carried out to determine the rate at which concrete hardens. The samples were further tested for compressive strengths at the ends of 7, 14, 21 and 28 days of curing. The result showed that the highest compressive strength for Conplast-430 (SP A) at 7 days was achieved at 1%, 14 days at 2%, 21 days at 2%and that of 28 days was achieved at 2%. While the highest compressive strength for Dr Fixit (SP B) at 7 days was achieved at 1%, 14 days at 1%, 21 days at 1% and that of 28 days was achieved at 3%. This therefore shows that use of super plasticizer has increased concrete strength and on time even at very low percentage introduction by volume.

Published in American Journal of Engineering and Technology Management (Volume 6, Issue 5)
DOI 10.11648/j.ajetm.20210605.12
Page(s) 82-88
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Dosage, Harden, Setting Time, Strength and Super plasticizer

References
[1] Agha-U. C. and Ezeagu C. A. (2016), Experimental Characterization of Mortar Made from local fine aggregate used for Masonry. International Journal of Computational Engineering Research (IJCER) Vol. 6 issue 6 June pp 33-42.
[2] Alsady, S. (2013). Effect of Super plasticizing and Retarding Admixtures on properties of concrete. International conference on innovations in Engineering and Technology, 1 (2), 271-273. Retrieved from http:/dx.doi.org/10.15242/11E.E1213607
[3] Dubey, R., and Kumar, P. (2012). Effect of SP Dosage on Compressive Strength of Self-Compacting Concrete. International Journal of Civil and Structural Engineering, 3 (2), 976-4399.
[4] Ezeagu, C. A, Adinna, B. O, Umenwaliri, S. N. and Umeonyiagu I. E. (2014), “Destructive Effect of Alkali Solution of sodium Hydroxide (caustic soda) to concrete.” International Journal of Enterpreneurial Development, Education and science research (IJEDESR) July, vol. 2. No. 1 pp 235-240. Indexed in Google Scholar, worldcat. OCLC: 36144943; EISSN: 1596-6194.
[5] Ezeagu C. A and Ikemefuna C (2019) "Concrete Strength Variations of Washed and Processed Coarse Aggregate Sizes in Alkalinity" East African Scholars Journal of Engineering and Computer Sciences (EASJECS) Vol. 2 Issue 1 Jan. pp 10 – 22.
[6] Garba, M. M. (2014, May). Concreting: Materials, Design, Production and Assembly. Increasing the Core Practice Areas of Builders VI. Paper presented at the 7th annual Mandatory Continuing Professional Development Programme for Builders, Lagos, Nigeria.
[7] Gupta, B. I and Gupta A. (2012). Concrete technology, Standard Publishers Distributors.
[8] Ganiron, T. U. (2013). Influence of Polymer Fibre on Strength of Concrete. International Journal of Advanced Science and Technology, 55 (01), 53-66.
[9] Gambhir, M. L. “Concrete technology”, Third edition Tata McGraw- Hill Publishing Company Limited, New Delhi, 2005.
[10] Joseph, A. A and Raymond, M. D (2014) “Rate of Strength Development of Concrete Made Using Selected Nigeria Cement Brands”. International Journal of Technology Emerging Engineering Research. Vol. 2 (12) pp. 48-51.
[11] Neville, A. M. and Brooks, J. J. (2010). Concrete Technology. 2nd edition. Pearson education, Longman Group Essex, England.
[12] Nemati, K. M. (2015). Concrete technology: Admixtures in concrete. University of Worshington.
[13] Okampo, A. and Zea, H. (2014). Formulation and Evaluation of Ready Mix Concrete of Chemical Additives Based on Molasses, Carboxymethylcelloluse and Polynaphthalnesulphonate. International Journal of Chemical Technology Research, 6 (01), 769-778. Retrieved from http://www.sphinxsai.com
[14] Okoro R. I and Ezeagu C. A. (2018) "Concrete Strength Variation of UnWashed and Processed coarse aggregates sizes" American Journal of Scientific Research and essays (AJSRE), 2018, 3; 9 PP 1- 13.
[15] Peurifoy, R. L. (2011). Construction Planning, Equipments and Methods. 8th Edition, McCraw-Hill, New york.
[16] Santhanam, M. (2013). Evaluation of Superplasticizer Performance in Concrete. The 3rd International Conference “Sustainable Constrution Materials and Technologies”. 76-82. Retrievedfrom http://www.claisse.info/proceedings.htm
Cite This Article
  • APA Style

    Akaolisa Celestine Ezeagu, Ezeagu Ebuka Edwin. (2021). Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete. American Journal of Engineering and Technology Management, 6(5), 82-88. https://doi.org/10.11648/j.ajetm.20210605.12

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    ACS Style

    Akaolisa Celestine Ezeagu; Ezeagu Ebuka Edwin. Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete. Am. J. Eng. Technol. Manag. 2021, 6(5), 82-88. doi: 10.11648/j.ajetm.20210605.12

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    AMA Style

    Akaolisa Celestine Ezeagu, Ezeagu Ebuka Edwin. Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete. Am J Eng Technol Manag. 2021;6(5):82-88. doi: 10.11648/j.ajetm.20210605.12

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  • @article{10.11648/j.ajetm.20210605.12,
      author = {Akaolisa Celestine Ezeagu and Ezeagu Ebuka Edwin},
      title = {Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete},
      journal = {American Journal of Engineering and Technology Management},
      volume = {6},
      number = {5},
      pages = {82-88},
      doi = {10.11648/j.ajetm.20210605.12},
      url = {https://doi.org/10.11648/j.ajetm.20210605.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajetm.20210605.12},
      abstract = {Super plasticizer or High range water reducer is a specific type of admixture that is used to produce low water-cement ratio high strength concrete with normal or enhanced workability. Therefore by using Super plasticizers, it became easier for contractors nowadays to place highly workable, durable, pump able concrete with higher strength, and even with less cost than using other ways to produce concrete with such properties. The effects of SPs on physical properties of hardened and fresh concrete is therefore studied in this research work by considering 1%, 2%, 3% and 4% of two types of Super plasticizers namely Conplast 430 and Dr Fixit which was referred as SP A and SP B respectively in this research. A mix ratio of 1:2:4 was used with a constant 0.5 water-cement ratio in order to determine the effect of SP on workability. A set of 72nos of 150mm x 150mm x 150mm concrete cubes specimens were casted and cured by complete immersion in water. Setting time test was carried out to determine the rate at which concrete hardens. The samples were further tested for compressive strengths at the ends of 7, 14, 21 and 28 days of curing. The result showed that the highest compressive strength for Conplast-430 (SP A) at 7 days was achieved at 1%, 14 days at 2%, 21 days at 2%and that of 28 days was achieved at 2%. While the highest compressive strength for Dr Fixit (SP B) at 7 days was achieved at 1%, 14 days at 1%, 21 days at 1% and that of 28 days was achieved at 3%. This therefore shows that use of super plasticizer has increased concrete strength and on time even at very low percentage introduction by volume.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Influence of Super plasticizer on the Compressive Strength and Setting Time of Concrete
    AU  - Akaolisa Celestine Ezeagu
    AU  - Ezeagu Ebuka Edwin
    Y1  - 2021/10/28
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ajetm.20210605.12
    DO  - 10.11648/j.ajetm.20210605.12
    T2  - American Journal of Engineering and Technology Management
    JF  - American Journal of Engineering and Technology Management
    JO  - American Journal of Engineering and Technology Management
    SP  - 82
    EP  - 88
    PB  - Science Publishing Group
    SN  - 2575-1441
    UR  - https://doi.org/10.11648/j.ajetm.20210605.12
    AB  - Super plasticizer or High range water reducer is a specific type of admixture that is used to produce low water-cement ratio high strength concrete with normal or enhanced workability. Therefore by using Super plasticizers, it became easier for contractors nowadays to place highly workable, durable, pump able concrete with higher strength, and even with less cost than using other ways to produce concrete with such properties. The effects of SPs on physical properties of hardened and fresh concrete is therefore studied in this research work by considering 1%, 2%, 3% and 4% of two types of Super plasticizers namely Conplast 430 and Dr Fixit which was referred as SP A and SP B respectively in this research. A mix ratio of 1:2:4 was used with a constant 0.5 water-cement ratio in order to determine the effect of SP on workability. A set of 72nos of 150mm x 150mm x 150mm concrete cubes specimens were casted and cured by complete immersion in water. Setting time test was carried out to determine the rate at which concrete hardens. The samples were further tested for compressive strengths at the ends of 7, 14, 21 and 28 days of curing. The result showed that the highest compressive strength for Conplast-430 (SP A) at 7 days was achieved at 1%, 14 days at 2%, 21 days at 2%and that of 28 days was achieved at 2%. While the highest compressive strength for Dr Fixit (SP B) at 7 days was achieved at 1%, 14 days at 1%, 21 days at 1% and that of 28 days was achieved at 3%. This therefore shows that use of super plasticizer has increased concrete strength and on time even at very low percentage introduction by volume.
    VL  - 6
    IS  - 5
    ER  - 

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Author Information
  • Department of Civil Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria

  • Department of Civil Engineering, Faculty of Engineering, Nnamdi Azikiwe University, Awka, Nigeria

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