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Bibliografia publikacji pracowników
Państwowej Szkoły Wyższej w Białej Podlaskiej

Baza tworzona przez Bibliotekę Akademii Bialskiej im. Jana Pawła II.


Zapytanie: FROST RESISTANCE
Liczba odnalezionych rekordów: 2



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1/2
Nr opisu: 0000047497
Autorzy: Małgorzata Grzegorczyk-Frańczak, Wojciech Andrzejuk, Robert Hunek, Grzegorz Łagód.
Tytuł pracy: Effect of Surface Hydrophobization on the Durability of Concrete with Cement Kiln Dust
Tytuł czasopisma:
Szczegóły: 2024, Vol. 18, issue 3, p. 214--233
p-ISSN: 2080-4075
e-ISSN: 2299-8624
Charakterystyka formalna: artykuł w czasopiśmie polskim
Charakterystyka merytoryczna: artykuł oryginalny naukowy
Charakterystyka wg MNiSW: artykuł w czasopiśmie z IF (wykaz MEiN)
Język publikacji: ENG
Wskaźnik Impact Factor ISI: 1.100
Punktacja ministerstwa: 100.000
Słowa kluczowe ang.: cement kiln dust ; concrete ; frost resistance ; hydrophobization ; salt crystalization
http://www.astrj.com/Effect-of-Surface-Hydrophobization-on-the-Durability-of-Concrete-with-Cement-Kiln,186212,0,2.html
DOI: 10.2913/22998624/186212
Streszczenie: The examinations of concrete involved partial substitution of cement with cement kiln dust (CKD) 0, 5, 10, 20 and 30%. The water/cement (w/c) ratio amounted to 0.36. The obtained findings pertaining to open porosity, density, and volumetric density were found to correlate with the capillary action and absorptivity of the analyzed types of concrete. With the maximum addition of CKD, i.e. 30%, open porosity decreased by 35%. In turn, CKD added in the amount of 5% resulted in a slightly reduced addition compressive strength, amounting to 1.3% and 2.1% following 28 days and 56 days of concrete curing, respectively. After 28 days, the differences in strength were greater when the additive was supplied in higher amounts, i.e. 10%, 20%, and 30%, resulting in 6.5%, 13.4%, and 22.9% decrease, respectively, in spite of strength improvement. In terms of flexural and splitting tensile strengths, comparable relations were noted. As far as the frost resistance test results are concerned, the mass losses in all examined concretes were not significant, reaching up to 0.5%. The strength reduction in the case of the first three series of concretes was below 3%. When the CKD addition was increased to 20% and 30%, the value of the dynamic modulus of elasticity Ec,s decreased to a greater degree, by 8.0% and 14.7%, respectively. The hydrophobization effect is best seen in CKD-free concrete. After the impregnation, the loss of mass following the frost test of the samples is reduced by half. With a higher CKD content, the hydrophobization effectiveness is insignificant. The most favourable results were observed for hydrophobization with the oligomer-based preparation A1. Š 2024, Politechnika Lubelska. All rights reserved.

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Nr opisu: 0000035841
Autorzy: Danuta Grażyna Barnat-Hunek, Jacek Góra, Wojciech Andrzejuk, Grzegorz Łagód.
Tytuł pracy: The Microstructure-Mechanical Properties of Hybrid Fibres-Reinforced Self-Compacting Lightweight Concrete with Perlite Aggregate
Tytuł czasopisma:
Szczegóły: 2018, Vol. 11, issue 7, article number 1093
p-ISSN: 1996-1944
Charakterystyka formalna: artykuł w czasopiśmie zagranicznym
Charakterystyka merytoryczna: artykuł oryginalny naukowy
Charakterystyka wg MNiSW: artykuł w czasopiśmie z IF (wykaz MEiN)
Język publikacji: ENG
Wskaźnik Impact Factor ISI: 2.972
Punktacja ministerstwa: 35.000
Praca recenzowana
Słowa kluczowe ang.: self-compacting concrete ; basalt fibre ; steel fibre ; perlite ; frost resistance ; microstructure-mechanical properties ; interfacial transition zone
Inne bazy podające opis:
  • WoS
  • Scopus

    http://www.mdpi.com/1996-1944/11/7/1093
    DOI: 10.3390/ma11071093
    Streszczenie: The purpose of this paper is to determine the influence of the lightweight porous perlite aggregate and two widely used types of fibres on the physical and mechanical properties, frost durability and microstructure of self-compacting lightweight concrete (SCLC). The experimental investigation consisted of tests carried out on cubes and prismatic samples made of SCLC and fibres-reinforced SCLC with variable content ranging from 0.5 to 1% of basalt fibres (BF) and/or 0.5% of steel fibres (SF). In this study, two variable contents of fine perlite aggregate were used: 5% and 15%. The workability (the slump-flow and t500 values) in fresh state SCLCs have been done. Extensive data on compressive and flexural tensile strength in bending behaviour, frost resistance and the microstructure including interfacial transition zone (ITZ) were recorded and analysed. The hybrid fibres-reinforced SCLC with perlite aggregate showed a more ductile behaviour compared to that of SCLC without fibres. Fibres bridge cracks during flexural tensile strength test. BF successfully protected porous SCLC against frost attack, whereas SF succumbed to damage.
    Projekt/grant: : działalność statutowa WNET PSW, 2017-WNET/KNT/ZB/1

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