The use of pozzolanic materials in the cement and concrete industries has risen sharply and continues to rise. Lime-pozzolan composites were used as a cementing material for construction of structures throughout the Roman Empire. The term “pozzolan” was first used to describe the volcanic ash mined at Pozzuoli, a village near Naples. Today the benefits derived from the use of pozzolans and mineral admixtures in cement and concrete industries can be divided into three categories: functional benefits (i.e. long term durability), economic benefits, and environmental benefits.
Our laboratory has performed research and quality control testing with several pozzolanic materials such as Granlated Blast-Furnace Slag, Metakaolin, Coal Ashes (Type C & F), Silica Fume and mineral admixtures such as limestone additions. A basic list of some of the pozzolanic testing our laboratory provides is listed below.
This list consists of tests that we perform on a regular basis. If a test is desired that is not listed below please call and inquire for further details.
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Compressive Strength of Hydraulic Cement Mortars (2x2 Cubes)
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Autoclave Expansion of Portland Cement
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Length Change of Hardened Hydraulic-Cement Mortar and Concrete
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Air Content of Hydraulic Cement Mortar
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Normal Consistency of Hydraulic Cement
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Density of Hydraulic Cement
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Time of Setting of Hydraulic Cement by Vicat Needle
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Fineness of Hydraulic Cement by Air-Permeability Apparatus
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Potential Alkali Reactivity of Cement-Aggregate Combinations
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Air-Entraining Additions for Use in the Manufacture of Air-Entraining Hydraulic Cement
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Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
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Flow Table for Use in Tests of Hydraulic Cement
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Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
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Flexural Strength of Hydraulic-Cement Mortars
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Compressive Strength of Hydraulic-Cement Mortars (Portions of Prisms Broken in Flexural)
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Fineness of Hydraulic Cement by the 45-µm (No. 325) Sieve
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Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Slica Reaction
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Specifications for Blended Hydraulic Cements
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Drying Shrinkage of Mortar containing Hydraulic Cement
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Specifications for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
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Length Change of Hydraulic-Cement Mortars Exposed to A Sulfate Solution
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Expansion of Hydraulic Cement Mortar Bars Stored in Water
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Specifications for Hydraulic Cements
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Silica Fume Used in Cementitious Mixtures
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Flow of Hydraulic Cement Mortar
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Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlays Materials by Direct Tension
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