Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2016
Volume 19
Issue 1
Topic:
Civil Engineering
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Kempiński J. , Kilian W. , ¦wierzko R. 2016. MODIFICATION OF CEMENT PASTES FOR THE REPAIRS OF CONCRETE STRUCTURES, EJPAU 19(1), #07.
Available Online: http://www.ejpau.media.pl/volume19/issue1/abs-07.html

MODIFICATION OF CEMENT PASTES FOR THE REPAIRS OF CONCRETE STRUCTURES

Jan Kempiński, Wojciech Kilian, Robert ¦wierzko
Institute of Building Engineering, Wroc³aw University of Environmental and Life Sciences, Wroc³aw, Poland

 

ABSTRACT

The paper presents results of experiments on the effect of superplasticizer addition on rheological and strength properties of cement paste destined for injection applications. Tested samples were produced with the CEM I 42.5 R Portland cement. The water-to-cement ratio varied from 0.35 to 0.55 and the amount of plasticizing agent varied from 0 to 3% by cement mass. The investigations were performed with the coaxial rotating viscotester. The strength of the matured samples was tested in accordance with valid building codes. The experiments showed that addition of the liquefying admixture effects in simplification of the rheological structure of paste. The strength of matured paste samples with the superplasticizer addition was considerably increased.

Key words: rheology, cement paste, superplasticizer.

Jan Kempiński
Institute of Building Engineering, Wroc³aw University of Environmental and Life Sciences, Wroc³aw, Poland
pl. Grunwaldzki 24
50-363 Wroc³aw
Poland
Phone: +48 71 3205503
Fax:+48 71 3205579
email: wojciech.kilian@up.wroc.pl

Wojciech Kilian
Institute of Building Engineering, Wroc³aw University of Environmental and Life Sciences, Wroc³aw, Poland
pl. Grunwaldzki 24
50-363 Wroc³aw
Poland
email: wojciech.kilian@up.wroc.pl

Robert ¦wierzko
Institute of Building Engineering, Wroc³aw University of Environmental and Life Sciences, Wroc³aw, Poland
pl. Grunwaldzki 24
50-363 Wroc³aw
Poland
email: robert.swierzko@up.wroc.pl

Responses to this article, comments are invited and should be submitted within three months of the publication of the article. If accepted for publication, they will be published in the chapter headed 'Discussions' and hyperlinked to the article.

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