Appl Note 106

Copyright XRD.US

Application of Powder Diffraction for Study of Clinker and Cement

 

Introduction

Clinker and cement phases often give a heavily overlapped peaks on powder data. Phase identification and particularly quantification is not simple. Quantitative analysis of clinker components is important, could be done by XRD.  Qunatitative XRD analysis of  free lime, CaO,  Portlandite, Ca(OH)2, and calcite, CaCO3. The uniqueness of X-ray Diffraction is the separation of these and other phases in the matrix. One cannot discount the importance of this difference in analyses, since the composition of CaO is the critical factor and not the other two component

Common Phases

Portland cement commonly contain the following phases Alite-C3S (69-71%), Belite-βC2S (7-14%), Aluminate C3A (0.2-2%) and Brownmillerite (Ferrite)-C4AF (3-7%), Periclase MgO, Gypsum CaSO4 2H2O

Detailed phase identification analysis often reveal many different cement clinkers show quite complicated phase mixtures: C3S triclinic, C3S-monoclinic, C3S superlattice, C3S-rhombohedral, β-C2S, a-C2S, C4AF, C3A cubic, C3A monoclinic, Periclase.

Cement, ceramic industries:

  • Phase analysis of clinker to determine strength and features of hardened cement stone.
  • Phase analysis in ceramic material. Determination of raw material, ceramics and refractories phase composition, as well as ready products.
  • Determination of coefficient of thermal expansion.
  • Analysis of technical clinker for content of certain phases.
  • Prediction of concrete strength index.
  • Determination of free lime content to control composition of raw dust and to maintain optimal temperature degree in kiln.

Sample Preparation

Phase Identification

Phase Quantification

Other Application Notes also available:

 

Note No

Title

Author

Link to ApplNote

AN-101 Powder diffraction of Asbestos XRD.US http://www.xrd.us/applnote/asbestos.htm
AN-102 Powder diffraction of Catalysts XRD.US www.xrd.us/applnote/catalysts.htm
AN-103 Powder diffraction of Ceramics XRD.US www.xrd.us/applnote/ceramics.htm
AN-104 Powder diffraction of Chemicals XRD.US www.xrd.us/applnote/chemicals.htm
AN-105 Powder diffraction of Clays and clay minerals XRD.US www.xrd.us/applnote/clays.htm
AN-106 Powder diffraction of Clinker and cement XRD.US http://www.xrd.us/applnote/clinker and cement.htm
AN-107 Powder diffraction of Composite materials XRD.US http://www.xrd.us/applnote/composite materials.htm
AN-108 Powder diffraction of Corrosion products XRD.US http://www.xrd.us/applnote/corrosion products.htm
AN-109 Powder diffraction for Environmental Appl XRD.US http://www.xrd.us/applnote/environmental.htm
AN-1010 Powder diffraction of Fly ash XRD.US www.xrd.us/applnote/fly ash.htm
AN-1011 Powder diffraction of Forensics XRD.US http://www.xrd.us/applnote/forensics.htm
AN-1012 Powder diffraction of Industrial wastes XRD.US http://www.xrd.us/applnote/industrial wastes.htm
AN-1013 Powder diffraction of Metals and alloys XRD.US http://www.xrd.us/applnote/metals and alloys.htm
AN-1014 Powder diffraction for  Mineral studies XRD.US http://www.xrd.us/applnote/minerals.htm
AN-1015 Powder diffraction for Mining XRD.US http://www.xrd.us/applnote/mining.htm
AN-1016 Powder diffraction of Nanomaterials XRD.US http://www.xrd.us/applnote/nanomaterials.htm
AN-1017 Powder diffraction for Oil drilling XRD.US http://www.xrd.us/applnote/oil drilling.htm
AN-1018 Powder diffraction in Patent process XRD.US http://www.xrd.us/applnote/patent infringment.htm
AN-1019 Powder diffraction of Pharmaceuticals XRD.US http://www.xrd.us/applnote/pharmaceuticals.htm
AN-1020 Powder diffraction of Plastics, fibers & textiles XRD.US http://www.xrd.us/applnote/plastic fiber textile.htm
AN-1021 Powder diffraction of Raw materials XRD.US http://www.xrd.us/applnote/raw materials.htm
AN-1022 Powder diffraction of Refractory materials XRD.US http://www.xrd.us/applnote/refractory materials.htm
AN-1023 Powder diffraction of Rocks XRD.US http://www.xrd.us/applnote/rocks.htm
AN-1024 Powder diffraction of Semiconductors XRD.US http://www.xrd.us/applnote/semiconductors.htm
AN-1025 Powder diffraction of Soils XRD.US http://www.xrd.us/applnote/soils.htm

 

 

 

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