Advanced search
1 file | 1.17 MB Add to list

Which parameters, other than the water content, influence the robustness of cement paste with SCC consistency?

Author
Organization
Abstract
Robustness is the capacity of cement-based mixtures to tolerate small variations in constituent elements, mixing parameters or temperature. It is an important reason slowing down the practical implementation of self-consolidating concrete (SCC). Especially the sensitivity of fresh SCC properties to a small variation in water content can be found in literature. The influence of the mixing sequence and mixing procedure on the robustness of SCC mixtures is not extensively reported. The present paper evaluates the effect of mixing time, mixing speed and the addition time of superplasticizer on the rheological properties of cement pastes with SCC consistency, which can be related to SCC mixtures. By means of rheology, the changes induced by the variations in mixing procedure are compared to the changes induced by the variations in water and superplasticizer content. The results indicate that changing the water content is the main factor influencing rheology of cement pastes with low water-to powder ratio (w/p). However, with increased water content in the paste mix design, other factors, such as adding time of the superplasticizer and mixing speed have equal or even superior importance as changing the water content. Dependent on the mix design, it may thus be necessary to use variables other than the water content to study robustness.
Keywords
Cement paste, Delayed addition, Mixing, Rheology, Robustness, SELF-CONSOLIDATING CONCRETE, RHEOLOGICAL PROPERTIES, SUPERPLASTICISER DOSAGE, COMPACTING CONCRETE, YIELD-STRESS, PERFORMANCE, ADMIXTURES, FRACTION

Downloads

  • (...).pdf
    • full text
    • |
    • UGent only
    • |
    • PDF
    • |
    • 1.17 MB

Citation

Please use this url to cite or link to this publication:

MLA
Asghari, Azadehalsadat A et al. “Which Parameters, Other Than the Water Content, Influence the Robustness of Cement Paste with SCC Consistency?” CONSTRUCTION AND BUILDING MATERIALS 124 (2016): 95–103. Print.
APA
Asghari, A. A., Ley Hernandez, A. M., Feys, D., & De Schutter, G. (2016). Which parameters, other than the water content, influence the robustness of cement paste with SCC consistency? CONSTRUCTION AND BUILDING MATERIALS, 124, 95–103.
Chicago author-date
Asghari, Azadehalsadat A, Aida Margarita Ley Hernandez, Dimitri Feys, and Geert De Schutter. 2016. “Which Parameters, Other Than the Water Content, Influence the Robustness of Cement Paste with SCC Consistency?” Construction and Building Materials 124: 95–103.
Chicago author-date (all authors)
Asghari, Azadehalsadat A, Aida Margarita Ley Hernandez, Dimitri Feys, and Geert De Schutter. 2016. “Which Parameters, Other Than the Water Content, Influence the Robustness of Cement Paste with SCC Consistency?” Construction and Building Materials 124: 95–103.
Vancouver
1.
Asghari AA, Ley Hernandez AM, Feys D, De Schutter G. Which parameters, other than the water content, influence the robustness of cement paste with SCC consistency? CONSTRUCTION AND BUILDING MATERIALS. Elsevier BV; 2016;124:95–103.
IEEE
[1]
A. A. Asghari, A. M. Ley Hernandez, D. Feys, and G. De Schutter, “Which parameters, other than the water content, influence the robustness of cement paste with SCC consistency?,” CONSTRUCTION AND BUILDING MATERIALS, vol. 124, pp. 95–103, 2016.
@article{8524442,
  abstract     = {Robustness is the capacity of cement-based mixtures to tolerate small variations in constituent elements, mixing parameters or temperature. It is an important reason slowing down the practical implementation of self-consolidating concrete (SCC). Especially the sensitivity of fresh SCC properties to a small variation in water content can be found in literature. The influence of the mixing sequence and mixing procedure on the robustness of SCC mixtures is not extensively reported. 
The present paper evaluates the effect of mixing time, mixing speed and the addition time of superplasticizer on the rheological properties of cement pastes with SCC consistency, which can be related to SCC mixtures. By means of rheology, the changes induced by the variations in mixing procedure are compared to the changes induced by the variations in water and superplasticizer content. The results indicate that changing the water content is the main factor influencing rheology of cement pastes with low water-to powder ratio (w/p). However, with increased water content in the paste mix design, other factors, such as adding time of the superplasticizer and mixing speed have equal or even superior importance as changing the water content. Dependent on the mix design, it may thus be necessary to use variables other than the water content to study robustness.},
  author       = {Asghari, Azadehalsadat A and Ley Hernandez, Aida Margarita and Feys, Dimitri and De Schutter, Geert},
  issn         = {0950-0618},
  journal      = {CONSTRUCTION AND BUILDING MATERIALS},
  keywords     = {Cement paste,Delayed addition,Mixing,Rheology,Robustness,SELF-CONSOLIDATING CONCRETE,RHEOLOGICAL PROPERTIES,SUPERPLASTICISER DOSAGE,COMPACTING CONCRETE,YIELD-STRESS,PERFORMANCE,ADMIXTURES,FRACTION},
  language     = {eng},
  pages        = {95--103},
  publisher    = {Elsevier BV},
  title        = {Which parameters, other than the water content, influence the robustness of cement paste with SCC consistency?},
  url          = {http://dx.doi.org/10.1016/j.conbuildmat.2016.07.101},
  volume       = {124},
  year         = {2016},
}

Altmetric
View in Altmetric
Web of Science
Times cited: