Identifcation of Organic Admixtures in Cement Dry Mix Systems Using MDRS
1 Institute for Natural Sciences, Technical Chemistry and Corrosion Sciences, University of Koblenz-Landau, 56070 Koblenz/Germany
2 Kerneos SA, 92800 Puteaux/France
3 Institute for Natural Sciences, Technical Chemistry and Corrosion Sciences, University of Koblenz-Landau, 56070 Koblenz/Germany
4 Kerneos SA, 92800 Puteaux/France
5 Institute for Natural Sciences, Technical Chemistry and Corrosion Sciences, University of Koblenz-Landau, 56070 Koblenz/Germany
Volume 10, Issue 2, Pages 38 - 42
Organic admixtures for industrial mortars and concretes, such as superplasticizers, retarders, or organiclubricants, are widely used to modify and control the processing properties of hydraulic bonded systems. A precise and accurate analytical statement about the presence of organic ingredients is required to design high-performance engineered castables, such as refractories. The present paper describes the application of Morphologically Directed Raman Spectroscopy (MDRS) to monitor organic admixtures in cement dry mix systems. Received spectra of MDRS investigations of organic and inorganic ingredients show characteristic Raman patterns of distinct peaks allowing the clas- sifcation of spotted particles. MDRS provides highest sensitivity since it is applied to individual particles of the present matrix, allowing the detection of admixture components in lowest concentration.
cement, Raman analysis, organic admixtures
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