Malvern Mastersizer 2000 - This analyzer is used to determine the particle size distribution of cement, fly ash and other coal by products. It uses the principle of laser diffraction to analyze particles from .02 to 2000 micrometers in size in a time span of several minutes.
Attritor is a batch grinding mill to reduce the size of granular material (-20 mesh) to as fine as 5 µm. The mill is equipped with a torque meter to continuously monitor energy requirements to perform the grinding. A variety of grinding media such as steel balls and zirconia is available and is used to grind coal any material (coal, ash, minerals) that is softer than the media.
Ball/Rod Mill is a continuous grinding mill used for continuous grinding of larger quantities (500 lbs/hr) of material. The mill can be operated with steel rods or steel balls and is equipped with a wet classification circuit to regrind oversize material.
Froth Flotation Cells are continuous (150 lbs/hr) cells that separate minerals based upon their differences in wetting behavior. Chemical are added to selectively adsorb on one mineral and render the surfaces hydrophobic (water-hating). Hydrophobic minerals attach to air bubbles and are removed as a stable froth. Froth flotation is used for numerous mineral applications such as separating coal from clay minerals or removing carbon from combustion ash.
Concentrating Spirals are continuous (1 ton/hr) devices that separate granular (-4 mesh) minerals based on differences in density. Example applications are separating pyrite from coal to reduce the sulfur content of the coal fuel or to recover coarse carbon from combustion ash.
High-Intensity Wet Magnetic Separator is a continuous device (500 lbs/hr) used for removal or recovery of magnetic or paramagnetic material from fine (-20 mesh) slurries. Example applications are magnetite recovery from fly ash and iron removal from mineral sands.
Self-Propelled Amphibious Drill Rig (20hp rotary and percussive heads)
Ready-Mix Concrete Truck (8 Cubic Yard)
Compression Tester is an instrument primarily used to test the compressive strength of concrete and mortar prisms; other tests include indirect tensile strength and elastic (Young's) modulus.
Concrete Mixer (3.5 Cubic Feet) is a rotating drum-type mixer is used to produce small batches of concrete (i.e. approximately 1 cubic foot) in the laboratory. The concrete is cast into cylinders and prisms for strength and durability testing.
Laboratory Mixers consist of both large and small mixers, 20 and 5 quart capacity, respectively, used to prepare mortars and small batches of "micro concrete" in the laboratory.
Flow Table - In order to evaluate the ability of fly ash to reduce the water required to achieve a certain workability of mortar and concrete, a mortar flow test is required. This apparatus is used to conduct the test.
Concrete Pan Mixer - This forced action mixer is used to produce small batches of concrete in the laboratory; it is used when a higher degree of shear is desired during the mixing process.
Concrete Mixer (12 Cubic Feet) - This large drum mixer can produce quantities of concrete sufficient to place a small slab that can be used to evaluate finishing properties and durability properties such as surface scaling.
Concrete Saw - This high-speed saw has a carbide-tipped blade and is used to cut sections of concrete and rock for various types of analyses.
Masonry Mixer - This is a forced action mixer that is used to prepare masonry block units.
Moist Curing Room - In order for mortar and concrete to achieve optimum strength, it must be cured in the presence of water. This room maintains 100% relative humidity and a constant temperature for optimum curing.
Rapid Chloride Permeability Apparatus - The rapid chloride test is used to evaluate the permeability, and by inference, the durability of concrete. This apparatus conforms to ASTM requirements for the test.
A Leica DMRX microscope is the latest addition to the fleet of microscopes in the Applied Petrology Laboratory. The new microscope, joining the four microscopes already in service, has capabilities for reflected and transmitted light microscopy and also has a Hg-arc source for UV and blue-light petrography. Documentation of images is done with a Diagnostic Instruments Spot Pursuit digital camera.
The original microscopes are all built on the Leitz (Leica) Orthoplan base. Two microscopes are equipped with photomultipliers for quantitative reflectance studies and two of the microscopes are equipped for UV and blue-light studies and also have digital cameras. In addition, a Leitz SM-LUX HL microscope is used for the microscopic study of metals and can share a digital camera with one of the other microscopes.
CAER Equipment
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