Inhaltszusammenfassung

This study describes an analytical approach to identify and quantify organicadmixtures, which are increasingly being used in multifunctional additive systems,such as calcium aluminate cemen t‐based dry mix formulations. The investigationsrefer to a wide range of established organic admixtures u sed in high performanceindustrial concrete applications, such as flow agents, retarders, or organic plasti-cizers, which are added in dosages of up to 5% (to the mass of cement). Basedon specific consi...This study describes an analytical approach to identify and quantify organicadmixtures, which are increasingly being used in multifunctional additive systems,such as calcium aluminate cemen t‐based dry mix formulations. The investigationsrefer to a wide range of established organic admixtures u sed in high performanceindustrial concrete applications, such as flow agents, retarders, or organic plasti-cizers, which are added in dosages of up to 5% (to the mass of cement). Basedon specific considerations, a consistent approach was outlined by combining theoutput of complementary analytical techniques. These analytical methods includedThermogravimetric Analysis and Differential Scanning Calorimetry coupled withMass Spectrometry, in combination with Fourier Transform Infrared Spectroscopyand Morphologically Directed Raman Spectroscopy, as well as Total CarbonAnalysis. Within the scope of the aforementioned studies, the applied methodswere validated for stringent detection limits (LOD < 0.05%) and precisiondemands (SD 1% to 7% with R2> 0.99).» weiterlesen» einklappen

Autoren

Klassifikation

DFG Fachgebiet:
Materialwissenschaft

DDC Sachgruppe:
Ingenieurwissenschaften