Kruszywo xonotlitowe, część I: Synteza hydrotermalna

• Autorzy: Dudek Karolina , Podwórny Jacek

Warianty tytułu

EN

Xonotlite aggregate, part I: Hydrothermal synthesis

• Języki publikacji: PL EN

Abstrakty

PL

W związku z dużym perspektywicznym znaczeniem xonotlitu dla gospodarki narodowej, podjęto badania jego syntezy hydrotermalnej. W doświadczeniach stosowano powszechnie dostępne surowce, z mianowicie piasek kwarcowy, zmielony do wielkości cząstek mniejszych od 0,2 μm, oraz wapno hydratyzowane. W celu całkowitego usunięcia węglanów wapno prażono w temperaturze 1000°C, a syntezę xonotlitu prowadzono w atmosferze argonu. Przeprowadzone doświadczenia wykazały, że synteza hydrotermalna pod ciśnieniem 3 MPa i w czasie, wynoszącym 10 godzin pozwala na otrzymanie krystalicznego xonotlitu, o pokroju pręcikowatym. Natomiast wydłużenie czasu syntezy do 24 godzin zmienia znacznie morfologię xonotlitu i wielkość kryształów.

EN

In connection with the perspective importance of xonotlite for the national economy, the study of its thermal synthesis, was undertaken. In the experiments the commonly accessible raw materials were used, namely the quartz sand, ground to the particles sizes under 0.2 μm and slaked lime. In order to totally eliminate the carbonates from lime, it was preliminary burned at 1000°C and the xonotlitu synthesis was conducted in the argon atmosphere. The experiments have shown that the hydrothermal synthesis, under the pressure of 3 MPa and during the period of 10 hours, is sufficient for the crystalline xonotlite formation, with the fibrous morphology. However, the time elongation to 24 hours, was changing very much the crystals sizes and morphology.

Słowa kluczowe

PL

ksonotlit; synteza hydrotermalna; krzemian wapnia

EN

xonotlite; hydrothermal synthesis; calcium silicate

• Wydawca: Fundacja Cement, Wapno, Beton
• Czasopismo: Cement Wapno Beton
• Rocznik: 2019
• Tom: R. 22/84, nr 4
• Strony: 259--266
• Opis fizyczny: Bibliogr. 27 poz., il., tab.

Twórcy

autor

Dudek Karolina

• Instytut Ceramiki i Materiałów Budowlanych, Oddział Materiałów Ogniotrwałych, Gliwice

autor

Podwórny Jacek

• Instytut Ceramiki i Materiałów Budowlanych, Oddział Materiałów Ogniotrwałych, Gliwice

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).