CMC has an energy-dispersive X-ray fluorescence unit from Rigaku to determine chemical (oxide) compositions of various construction materials
Portland cement composition according to ASTM C 114;
Lime and Gypsum products' compositions;
Masonry mortar's bulk oxide compositions;
Sulfate content in concrete;
Soluble Silica Content in Cement, Concrete, and Mortar
Cement Contents in Concrete and Mortar
Cartesian Geometry Energy Dispersive X-ray Fluorescence Spectrometer
• Analyze 11Na to 92U non-destructively
• Solids, liquids, powders and thin films
• Polarized excitation for lower detection limits
• Semi-quantitative analysis without standards
• Reduced standards requirements with RPF-SQX
• Novel treatment of peak overlap reduces errors
• Simplified user interface with EZ Analysis
RIGAKU'S NEX-CG & QUANT EZ SOFTWARE THAT CMC USES FOR ROUTINE CHEMICAL ANALYSES OF CEMENT, MASONRY, CONCRETE, AND OTHER CONSTRUCTION MATERIALS
Rigaku NEX CG delivers rapid qualitative and quantitative determination of major and minor atomic elements in a wide variety of sample types — with minimal standards.
As a premium low cost benchtop Energy Dispersive X-ray Fluorescence (EDXRF) elemental analyzer, the Rigaku NEX QC+ QuantEZ delivers wide elemental coverage with a easy-to-learn Windows®-based QuantEZ software. Non-destructively analyze from sodium (Na) through uranium (U) in almost any matrix, from solids and alloys to powders, liquids and slurries.
BRUKER'S S2 RANGER
The S2 RANGER performs elemental analysis from Sodium (Na) to Uranium (U) from 100% down to the ppm-level in liquid, solid or powdered samples with little or no sample preparation. Unrivalled analytical performance regarding accuracy and precision is ensured by using the latest Si-Drift-detector technology in combination with the direct excitation X-ray geometry. To reduce operational costs and to avoid handling of liquid nitrogen the detector is thermoelectrically cooled.
The unique software concept of the S2 RANGER in combination with SPECTRA EDX provides full analytical flexibility with powerful tools, but keeps the setup of own applications as simple as possible by providing the optimized measurement conditions. EQUA ALL, our standard less solution for energy-dispersive X-ray fluorescence analysis (EDXRF), enables you to obtain results immediately. Click the photo above for the Brochure of S2 Ranger.
XRF SAMPLE PREPARATION
A Sepor Mini Thor (Rocklab) tungsten carbide ring pulverizer is used to grind sample down to finer than 50-100 microns. Usually, a few drops of anhydrous alcohol are added to reduce decomposition of hydrous phases from the heat generated from grinding.
A McCrone micronizing mill is then used to further pulverize the sample down to finer than 44-micron grain size
Approximately 10 grams of sample is ground first in the Sepor pulverizer, from which about 8.0 grams of sample is selected, mixed with three binder tablets (total binder weight of 0.6 grams, for a fixed binder proportion of 7.5%), the mixture is then further ground in Sepor and McCrone pulverizer down to finer than 44 micron size.
Approximately 7.0 grams of thus-prepared binder-mixed pulverized sample is then weighed into an aluminum sample pan inserted in a stainless steel die to prepare the sample pellet.
A 25-ton Spex X-press is used to prepare a 32 mm-diameter pellet from the pulverized sample.
The same pellet is then used for XRD to determine the mineralogy and subsequently for XRF to determine the chemical composition.
This video from SPEX demonstrates various XRF sample preparation steps from powder pressed pellets to fused beads that we use in our XRF laboratory with SPEX pulverizer to X-press sample press.
Webinar on Sample Preparation Methods to Ensure Accurate XRF Analysis by Oxford Instruments.
Oxide composition of Portland cement according to ASTM C 114
Oxide compositions of lime and gypsum products
Bulk oxide composition of concrete
Bulk oxide composition of masonry mortars
Sulfate contents of cement, concrete, mortar, gypsum, and other products
Soluble silica content in cement, masonry, and concrete
Oxide composition of slag and other industrial byproducts