Floor failure in office building caused by concreting in adverse weather conditions

openaccess, Vol. 557 (1) 2019 / wtorek, 22 stycznia, 2019
[Open Access]

Sz. Dawczyński,
R. Krzywoń,
J. Hulimka

DOI: 10.15199/33.2019.01.16

Volume 557: Issue 1
Pages 85385
Accepted for publication: 28.09.2018 r.

The paper presents failure condition of the reinforced concrete floor slab in two-storeyed office building. After the floor shuttering removal a mesh of irregular cracks, with water leaking through during rainfall, has been noticed all over the floor surface. Based on the analyses carried out, it has been noted that observed floor cracks resulted exclusively from the accumulation of shrinkage impacts as well as floor thermal deformations. Remedial recommendation proposed was gluing separates parts of the floor by means of injection with non-shrinkage epoxy resins of possibly low viscosity that guarantee appropriate cracks penetration.
Keywords: temperature and shrinkage cracking; shrinkage; repairing works; injection.
[1] Jasiczak Józef. 2003. Technologie budowlane II. Poznań. Politechnika Poznańska.
[2] Karta katalogowa Górażdże Cement: Cement hutniczy PN-B 19707 CEM III/A 32,5N-HSR/LH/NA, www.heidelbergcement.com.
[3] Neville Adam M. 2000. Właściwości betonu. Wydanie IV. Kraków. Wydawnictwo Polski Cement Sp. z o.o.
[4] www.sika.pl.
[5] www.weatheronline.pl.
dr inż. Szymon Dawczyński, Politechnika Śląska; Wydział Budownictwa
dr inż. Rafał Krzywoń, Politechnika Śląska; Wydział Budownictwa
dr hab. inż. Jacek Hulimka, prof. nzw. PŚ, Politechnika Śląska; Wydział Budownictwa

r hab. inż. Jacek Hulimka, prof. nzw. PŚ jacek.hulimka@polsl.pl