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Hydration products in peat-containing concrete

Journal Article · · Inorg. Mater. (Engl. Transl.); (United States)
OSTI ID:6182148
This investigation was conducted to study the influence of transitional peat on the phase composition of the newly formed structures in peat concrete produced from a solution based on portland cement with calcium chloride and a gypsum-alumina binder added. The phase compositions of the new structures were determined by derivatographic and x-ray phase analysis, using IR spectroscopy and electron (in combination with microdiffraction) and scanning microscopy in individual cases. When peat-containing concrete is based on portland cement, the fundamental neoformations characteristic of this type of binder are accompanied by large amounts of peat organic-acid calcium salts and highly hydrated chelate complexes containing iron and aluminum hydroxides, which retard crystal growth. When a gypsum-alumina binder is employed, the peat components chelate with the aluminum hydroxide and have no perceptible influence on cement hydration products.
OSTI ID:
6182148
Journal Information:
Inorg. Mater. (Engl. Transl.); (United States), Journal Name: Inorg. Mater. (Engl. Transl.); (United States) Vol. 24:3; ISSN INOMA
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010500 -- Coal
Lignite
& Peat-- Products & By-Products
36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM HYDROXIDES
ALUMINIUM OXIDES
BINDERS
BUILDING MATERIALS
CALCIUM CHLORIDES
CALCIUM COMPOUNDS
CALCIUM HALIDES
CALCIUM SULFATES
CEMENTS
CHALCOGENIDES
CHELATES
CHEMICAL COMPOSITION
CHLORIDES
CHLORINE COMPOUNDS
COHERENT SCATTERING
COMPLEXES
CONCRETES
CRYSTAL GROWTH
DIFFRACTION
ELECTRON DIFFRACTION
ELECTRON MICROSCOPY
ENERGY SOURCES
FOSSIL FUELS
FUELS
GYPSUM
HALIDES
HALOGEN COMPOUNDS
HYDRATES
HYDRATION
HYDROGEN COMPOUNDS
HYDROXIDES
INFRARED SPECTRA
IRON COMPOUNDS
IRON HYDROXIDES
MATERIALS
MICROSCOPY
MINERALS
ORGANIC MATTER
OXIDES
OXYGEN COMPOUNDS
PEAT
PORTLAND CEMENT
SCANNING ELECTRON MICROSCOPY
SCATTERING
SOLVATION
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
SULFATE MINERALS
SULFATES
SULFUR COMPOUNDS
TEMPERATURE EFFECTS
TRANSITION ELEMENT COMPOUNDS