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Effects of admixture type and dosage on microstructural and mechanical properties of cement mortars

  • Structural Engineering
  • Published:
KSCE Journal of Civil Engineering Aims and scope

Abstract

Effects of admixture type and dosage have been investigated in the scope of this study. The influence of incorporation of chemical admixtures at different dosages on the development of pore structure of cement mortars has also been investigated. A delay on the development rate of strength by incorporation of chemical admixtures at early ages has been determined. The highest strength values were obtained for the cement mortars prepared by naphthalene sulphonate based chemical admixture. The strength values of specimens prepared with overdosage were lower than those of control specimens. Therefore, setting time and flow values were investigated related to admixture dosage and type. Increase in dosage of admixtures results in an increase of setting time and flow values. The pore structure development was given by time and dosage. Maximum pore area ratio values are determined for cement mortars prepared with overdosage. Pore area ratio values decrease by time, as compressive strength values increase.

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Authors and Affiliations

  1. Dept. of Civil Engineering, Faculty of Engineering, Celal Bayar University, Manisa, 45160, Turkey

    Ali Ugur Ozturk

  2. Dept. of Civil Engineering, Faculty of Engineering, Dokuz Eylul University, Izmir, 35160, Turkey

    Bulent Baradan

Authors
  1. Ali Ugur Ozturk
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  2. Bulent Baradan
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Correspondence to Ali Ugur Ozturk.

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Ozturk, A.U., Baradan, B. Effects of admixture type and dosage on microstructural and mechanical properties of cement mortars. KSCE J Civ Eng 15, 1237–1243 (2011). https://doi.org/10.1007/s12205-011-0962-x

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  • DOI: https://doi.org/10.1007/s12205-011-0962-x

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