The heart of concrete lies in the cement.  Several tests should be performed to determine the characteristics of cement and its compatibility with other materials in the concrete mix design.  Compressive strength testing of mortar cubes at 3-days, 7-days and 28-days of aging are used to observe the development of the strength gain of the mortar over time.  A chemical analysis of the cement will provide a reasonable estimate of the composition of the cement.  These are just a few of the tests that can be used to determine the quality of the cement.  A basic list of some of the cement testing our laboratory provides is listed below. 

TEC Services’ laboratory is approved and/or inspected by AMRL (AASHTO Materials Reference Laboratory), CCRL (Cement and Concrete Reference Laboratory) and the US Army Corps of Engineers.  Our laboratory accreditations include: ISO 17025, AASHTO R18 and we are an approved laboratory for the US Army Corps of Engineers.  TEC Services works closely with ASTM in the development of test methods, testing guidelines and specification for all types of cements.  Our laboratory has performed research, quality control, and cement–admixture compatibility testing.

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.


Specification for Natural Cement
Specification for Masonry Cement
Compressive Strength of Hydraulic Cement Mortars (2x2 Cubes)
Chemical Analysis of Hydraulic Cement
Specification for Portland Cement
Autoclave Expansion of Portland Cement
Air Content of Hydraulic Cement Mortar
Normal Consistency of Hydraulic Cement
Density of Hydraulic Cement
Time of Setting of Hydraulic Cement by Vicat Needle
Fineness of Hydraulic Cement by Air-Permeability Apparatus
Potential Alkali Reactivity of Cement-Aggregate Combinations
Air-Entraining Additions for Use in the Manufacture of Air-Entraining Hydraulic Cement
Time of Setting of Hydraulic-Cement Paste by Gillmore Needles
Flow Table for Use in Tests of Hydraulic Cement
Flexural Strength of Hydraulic-Cement Mortars
Compressive Strength of Hydraulic-Cement Mortars (Portions of Prisms Broken in Flexural)
Early Stiffening of Hydraulic Cement
Fineness of Hydraulic Cement by the 45-µm (No. 325) Sieve
Early Stiffening of Hydraulic Cement (Paste Method)
Potential Expansion of Portland-Cement Mortars Exposed to Sulfate
Specifications for Blended Hydraulic Cements
Drying Shrinkage of Mortar containing Hydraulic Cement
Optimum SO3 in Hydraulic Cement Using 24-hr Compressive Strength
Fineness of Hydraulic Cement and Raw Materials by the No. 50, No. 100, and No. 200 Sieves by Wet Methods
Restrained Expansion of Expansive Cement Mortar
Time of Setting of Hydraulic Cement Mortar by Modified Vicat Needle
Specifications For Expansive Hydraulic Cement
Length Change of Hydraulic-Cement Mortars Exposed to A Sulfate Solution
Expansion of Hydraulic Cement Mortar Bars Stored in Water
Specifications for Hydraulic Cements
Specification for Plastic (Stucco) Cement
Specification for Mortar Cement
Flow of Hydraulic Cement Mortar
Water Retention of Hydraulic Cement-Based Mortars and Plasters
Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlays Materials by Direct Tension

 


Resources

AASHTO    
Army Corps of Engineering
ACI
PCA
ASTM
 
     
 

 
Cement Flow Testing Cement Flow Testing
Cement Testing Laboratory Cement Testing Laboratory
Cement Time  Setting - ASTM C 191 Cement Time Setting - ASTM C 191
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