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. |
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Copyright © The Author(s), 2021. Published by Science Publishing Group |
Dosage, Harden, Setting Time, Strength and Super plasticizer
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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
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
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
@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} }
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 -