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Fosfogips do produkcji materiałów budowlanych

Fosfogips do produkcji materiałów budowlanych

Fernanda de Oliveira S. Ferrari

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Editorial:
KS OmniScriptum Publishing
Año de edición:
2024
Materia
Ciencia, ingeniería y tecnología medioambientales
ISBN:
9786208404994
46,37 €
IVA incluido
Disponible

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Sobre IBD

Badania dotyczyły wykorzystania fosfogipsu - odpadu z produkcji nawozów fosforowych, odpadu z produkcji wapna oraz piasku z kopalni złota do wytworzenia nowych materiałów budowlanych. Wyniki uzyskane w jednoosiowych testach wytrzymałości na ściskanie osiągnęły 8,3 MPa w 3. dniu utwardzania i 13,5 MPa w 90. dniu. Materiał charakteryzował się współczynnikiem wodoodporności wynoszącym 0,95 po 28 dniach, absorpcją wody wynoszącą 8,6% oraz wartościami rozszerzalności w 3. dniu wynoszącymi 1% i 1,5% po półtora roku utwardzania. Właściwości mechaniczne opracowanych materiałów spełniały wymagania NBR 7.170/83 dla cegieł pełnych w klasach A, B i C oraz pustaków ceramicznych w klasach 15 i 25. Za pomocą XRD, XRF, SEM i EDS zbadano procesy fizykochemiczne związane z tworzeniem się struktur w nowych materiałach, ze względu na transformację krystalicznych minerałów i syntezę substancji amorficznych, podobnych do struktur obecnych w gipsie.

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