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Influence of Superplasticizer Compatibility on the Setting Time, Strength and Stiffening Characteristics of Concrete
Advances in Applied Sciences
Volume 1, Issue 2, October 2016, Pages: 30-36
Received: Sep. 8, 2016; Accepted: Sep. 23, 2016; Published: Oct. 14, 2016
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Authors
Muhsen Salam Mohammed, Department of Civil Engineering, College of Engineering, Zawia University, Zawia, Libya
Salahaldein Alsadey Mohamed, Department of Civil Engineering, College of Engineering, Bani Waleed University, Bani Walid, Libya
Megat Azmi Megat Johari, Department of Civil Engineering, College of Engineering, Universiti Sains Malaysia, Penang, Malaysia
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Abstract
The adverse effects of elevated temperatures on the properties of the fresh concrete include increased water demand, shorter setting time and increased slump loss. Superplasticizer (SP) is important to enhance the workability and setting time of concrete under hot weather, hence, an experimental investigation was conducted to determine the effect of dosage of the mentioned admixture. Concrete mixes with SP dosages of 400, 600, 800, 1000 and 1200 ml/100kg of cement were prepared, together with two control mixes (water/cement ratio were 0.56 and 0.66 respectively). After casting, normal curing was carried out on the concrete samples. Properties such as compressive strength, porosity, water absorption, permeability and initial surface absorption were determined, besides determining the workability and setting time of the fresh concrete. Over dosage of SP were found to deteriorate the properties of concrete with indication of lower compressive strength and higher porosity. However, if the dosage levels are lower than the optimum dosage, increase in admixture dosage might help to enhance the concrete characteristics.
Keywords
Superplasticizer, Compatibility, Strength, Dosage
To cite this article
Muhsen Salam Mohammed, Salahaldein Alsadey Mohamed, Megat Azmi Megat Johari, Influence of Superplasticizer Compatibility on the Setting Time, Strength and Stiffening Characteristics of Concrete, Advances in Applied Sciences. Vol. 1, No. 2, 2016, pp. 30-36. doi: 10.11648/j.aas.20160102.12
Copyright
Copyright © 2016 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
References
[1]
Ramachandran V. S., Beaudoin J. J.and Shihua., 1981. Concrete science. Heyden & Son Ltd. p. 91,130- 138, 145.
[2]
Neville A. M, 2005. Properties of concrete, Pearson. Prentice Hall, p 255- 262.
[3]
Yamakawa C., Kishitani K., Fukushi I. and Kuroha K., 1990. Slump control and properties of concrete with a new superplasticizer. II: High strength in- situ concrete ork at Hikariga- oka Housing Project, Chapman and Hall. p. 94.
[4]
Borsai A.., 1994. Effect of superplasticizer type on the performance of high- volume fly ash concrete.
[5]
Fukuda M., Mizunuma T. Iumi T. and Iizuka M., 1990. Slump control and properties of concrete with a new superplasticizer. Chapman and hall.
[6]
Collepardi M., Monosi S. and Pauri M., 1990. The influence of superplasticizer type and dosage on the compressive strength of Portand cement concrete in the presence of fly ash. University of Ancona, Italy.
[7]
Gopalan M. K. and Haque M. N., 1990. Strength development of superplasticized plain and fly ash concretes. University of New South Wales, Australia.
[8]
Building Research Establishment Report, 1988. Design of normal concrete mixes.
[9]
BS1881-125: (method of mixing and sampling fresh concrete in the laboratory).
[10]
British Standard Institution, BS 1881: Part 3 (1970). Methods of Making Curing and Test Specimens.
[11]
British Standard Institution, BS 1881: Part 102 (1983). Methods for Determination of Slump.
[12]
British Standard Institution, BS 1881: Part 116 (1983). Methods for Determination of Compressive Strength of Concrete Cube.
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