Partial replacement of cement by lignite fluid combustion ash and its impact on concrete sulphate resistance

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Partial replacement of cement by lignite fluid combustion ash and its impact on concrete sulphate resistance

Popis výsledku v původním jazyce

This paper presents findings concerning testing of concrete with partial cement replacement by fluid combustion ashes as to sulphate resistance. Concrete samples have been exposed to aggressive media for a period of 18 months. Secondary raw material exploitation for building material, among others, also for concrete production is a long-time trend. Fly ash is one of waste originating in heat and power plants with coal combustion. More and more combustion plants switch to combustion in floatation i.e. fluid combustion. Such combustion produces ashes of chemistry diametrically different from classic combustion ones. Ash originates with dust coal combustion in heat and power plants. Ash in flue gas is trapped in dust settling chambers in their mechanicalor electrostatic separators. All mineralogical components are exposed to high temperature for various time periods during combustion, and - moreover - they can pass through oxidizing/reducing environment. Ashes contain always residues of

Název v anglickém jazyce

Partial replacement of cement by lignite fluid combustion ash and its impact on concrete sulphate resistance

Popis výsledku anglicky

This paper presents findings concerning testing of concrete with partial cement replacement by fluid combustion ashes as to sulphate resistance. Concrete samples have been exposed to aggressive media for a period of 18 months. Secondary raw material exploitation for building material, among others, also for concrete production is a long-time trend. Fly ash is one of waste originating in heat and power plants with coal combustion. More and more combustion plants switch to combustion in floatation i.e. fluid combustion. Such combustion produces ashes of chemistry diametrically different from classic combustion ones. Ash originates with dust coal combustion in heat and power plants. Ash in flue gas is trapped in dust settling chambers in their mechanicalor electrostatic separators. All mineralogical components are exposed to high temperature for various time periods during combustion, and - moreover - they can pass through oxidizing/reducing environment. Ashes contain always residues of

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2004

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Scientific Conference LIFE CYCLE ASSESSMENT, BEHAVIOUR AND PROPERTIES OF CONCRETE AND CONCRETE STRUCTURES LC 2004

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

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Název nakladatele

VUT V Brně

Místo vydání

Brno

Místo konání akce

Brno

Datum konání akce

9. 11. 2004

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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