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Dodatki do redukcji sześciowartościowego chromu w cemencie

Dodatki do redukcji sześciowartościowego chromu w cemencie

Rina Vaity

43,40 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786209363863
43,40 €
IVA incluido
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Wszystkie cementy portlandzkie zawierają zazwyczaj zanieczyszczenia w postaci związków sześciowartościowego chromu, które pochodzą z użytych surowców lub dodatków, zwykle dodawanych podczas procesu produkcji cementu. W ciągu ostatnich około trzydziestu lat wielu naukowców opracowało różne strategie produkcji cementu portlandzkiego o niskiej zawartości sześciowartościowego chromu w warunkach wilgotnych. Wszystkie informacje dotyczące tego sektora mają charakter zastrzeżony. W ciągu ostatniej dekady przedmiotowy obszar badań był przedmiotem dwóch znakomitych przeglądów. W krajach europejskich, Stanach Zjednoczonych i Kanadzie, ze względu na surowe przepisy zakazujące sprzedaży cementu zawierającego więcej niż 2 ppm chromu rozpuszczalnego (VI), w ciągu ostatnich trzydziestu lat do cementu tradycyjnie dodawano środki redukujące, takie jak siarczan żelaza i siarczan cyny. Niniejsza monografia stanowi podsumowanie prac poprzednich naukowców i ma charakter podręcznika referencyjnego.

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