Jolanta Wołowicz, M.Sc., Eng.


Recent publications
1.Glinicki M.A., Krzywobłocka-Laurów R., Ranachowski Z., Dąbrowski M., Wołowicz J., Microstructure analysis of concrete modified with addition of calcareous fly ash, Roads and Bridges - Drogi i Mosty, ISSN: 1643-1618, DOI: 10.7409/rabdim.013.013, Vol.12, No.2, pp.173-189, 2013
Abstract:

The investigation of concrete microstructure and phase composition was performed on concrete specimens produced with and without calcareous fly ash obtained from Bełchatów Power Station. The used calcareous fly ash (designated “W”) was either unprocessed or ground to assumed specific surface and added to concrete mix to substitute 30% of the binder by weight. The following testing methods were used in this research: scanning electron microscopy, differential thermal analysis (DTA) and multiple microindentation. The characteristic features of the investigated microstructures are discussed and the effect of calcareous fly ash on the content of non-evaporable water and portlandite in cement matrix is analysed. The results of microindentation and compressive strength testing were used as the basis for evaluation of the efficiency of calcareous fly ash added to concrete mix.

Keywords:

calcareous fly ash, microindentation, microstructure, non-evaporable water, phase composition, portlandite, strength

Affiliations:
Glinicki M.A.-IPPT PAN
Krzywobłocka-Laurów R.-other affiliation
Ranachowski Z.-IPPT PAN
Dąbrowski M.-IPPT PAN
Wołowicz J.-IPPT PAN
2.Bebłacz D., Glinicki M.A., Sobczak M., Wołowicz J., Investigation of the load bearing capacity of precast manhole covers to be embedded in road pavements, Roads and Bridges - Drogi i Mosty, ISSN: 1643-1618, Vol.11, No.3, pp.183-194, 2012
Abstract:

Concrete manhole covers of underground cable networks, placed into pavements of roadways and footways, are often subjected to premature damage posing a threat to traffic safety. That is why the investigation was undertaken to increase the durability of precast concrete covers. New concrete mixtures for precast elements as well as the structure of elements (the type of a chassis, the number and arrangement of reinforcement bars) were designed. Experimental research into the load bearing capacity of concrete elements manufactured in multiple precast plants according to the assumed mix design was carried out. The impact of the type of cement, chemical admixtures and fibre reinforcement on the load capacity of precast concrete elements was assessed. The high effectiveness of fibre reinforcement enhancing the load bearing capacity of concrete covers was found.

Keywords:

concrete, concrete precast elements, fibre-concrete, load capacity, manhole covers

Affiliations:
Bebłacz D.-other affiliation
Glinicki M.A.-IPPT PAN
Sobczak M.-IPPT PAN
Wołowicz J.-IPPT PAN

List of chapters in recent monographs
1.
285
Ranachowski Z., Jóźwiak-Niedźwiedzka D., Dąbrowski M., Wołowicz J., Sobczak M., Dębowski T., Glinicki M.A., Proc. Int. Symp. Brittle Matrix Composites, BMC-10, October 15-17, Warsaw, rozdział: Microhardness testing procedure applied to blended cement based matrix, IFTR and Woodhead Publ., Warsaw, pp.209-222, 2012
2.
243
Kasperkiewicz J., Marks M., Wołowicz J., Zagadnienia materiałowo-technologiczne infrastruktury i budownictwa, Problemy naukowo-badawcze budownictwa, rozdział: Możliwości akustycznej identyfikacji faz w betonie, Wydawnictwa Politechniki Białostockiej (Białystok), Łapko A., Broniewicz M., Prusiel J.A. (Eds.), V, pp.325-332, 2008