Modyfikacja betonu dodatkiem SAP - wybrane aspekty trwałości

• Autorzy: Woyciechowski Piotr , Sokołowska Joanna Julia , Kalinowski Maciej

Warianty tytułu

EN

Concrete modyfication with the addition of SAP - selected aspects of durability

• Języki publikacji: PL

Abstrakty

PL

Modyfikacja betonu polimerem superabsorpcyjnym (SAP), który po nasyceniu wodą zarobową stanowi środek pielęgnacji wewnętrznej, jest stosunkowo nowym rozwiązaniem w technologii betonu. Z uwagi na stosunkowo niedługi czas stosowania polimerów SAP jako komponentu betonu wpływ takiej modyfikacji na trwałość betonu nie został jeszcze jednoznacznie rozpoznany. W niniejszym artykule podjęto próbę syntetycznej oceny efektów obecności polimerów superabsorpcyjnych, zastosowanych w funkcji nośników wody i środków pielęgnacji wewnętrznej betonu, na wybrane właściwości betonu, które znacząco determinują jego trwałość. Analizowano wpływ SAP na skurcz autogeniczny betonu, mrozoodporność betonu oraz odporność betonu na karbonatyzację, tj. cechy istotne z punktu widzenia warunków eksploatacji betonu w Polsce.

EN

The modification of concrete with superabsorbent polymers (SAP), which, after saturation with water, as considered a means of internal curing, is a relatively new approach in concrete technology. The presence of this type of polymer in the concrete composition results in the modification of the microstructure of the cement matrix (formation of additional quasi-pores), and thus - may have a significant impact on the technical properties and durability of concrete. The influence of such modification on the durability of concrete has not yet been unequivocally recognized. This article attempts to synthetically evaluate the effects of the presence of superabsorbent polymers, used as water carriers and internal concrete curing agents, on selected properties of concrete, which significantly determine its durability. The impact of SAP on concrete autogenous shrinkage, freeze/thaw resistance and resistance to carbonation, i.e. features significant from the point of view of concrete exploitation conditions in Poland, was analyzed.

Słowa kluczowe

PL

modyfikacja; beton; dodatek; polimer superabsorpcyjny; trwałość; karbonatyzacja; mrozoodporność; skurcz autogeniczny

EN

modification; concrete; addition; superabsorbent polymer; durability; carbonation; frost resistance; autogenous shrinkage

• Wydawca: Fundacja Polskiego Związku Inżynierów i Techników Budownictwa
• Czasopismo: Inżynieria i Budownictwo
• Rocznik: 2022
• Tom: R. 78, nr 9-10
• Strony: 406--409
• Opis fizyczny: Bibliogr. 32 poz., il.

Twórcy

autor

Woyciechowski Piotr

• Politechnika Warszawska, Wydział Inżynierii Lądowej

• https://orcid.org/0000-0002-8127-7559

autor

Sokołowska Joanna Julia

• Politechnika Warszawska, Wydział Inżynierii Lądowej

• https://orcid.org/0000-0002-6137-4060

autor

Kalinowski Maciej

• Politechnika Warszawska, Wydział Inżynierii Lądowej

• https://orcid.org/0000-0002-6729-1506

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).