Spatially resolved investigation of complex multi-phase systems using μxRF, SEM-EDX and high resolution SyXRD

• Spatially resolved analysis of complex multi-phase systems can be validated through different analytical methods. This study compares investigations by scanning electron microscopy coupled with energy dispersive X-ray fluorescence analysis and high resolution X-ray diffraction. The studied sulfate attacked cement paste containing fly ashes consists of different interacting crystalline and amorphous phases. The complementary methods revealed in detail changes in phase composition due to the chemical attack. The advantages and disadvantages of both methods are discussed and suggestions are given for combining them with additional methods to maximize the information content.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Annan materialteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Other Materials Engineering (hsv//eng)

Nyckelord

Cement paste

Comparison

Damaging mechanism

EDX-SEM

High resolution

Spatial investigations

Sulfate attack

SyXRD

Energy dispersive spectroscopy

Fly ash

Scanning electron microscopy

X ray diffraction

Publikations- och innehållstyp

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