The use of pozzolanic materials in the cement and concrete industry has risen sharply and continues to grow.  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 in 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 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.

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 for concrete testing.  Our laboratory accreditations include: ISO 17025, AASHTO R18 and we are an approved laboratory for the US Army Corps of Engineers.  Stringent quality assurance and quality control procedures provide results engineers can rely on as they consider recommendations for your project.  Our concrete laboratory has performed testing on all types of pozzolanic materials for the pavement industry, nuclear industry, and commercial industry.

TEC Services’ employees are active members in ACI, ASTM, ICRI, FRCA, ASCE and SWRI.  Several TEC employees are current or past committee members, committee chairs, board members and presidents of the above mentioned organizations local and national chapters.  TEC Services works closely with ASTM in the development of test methods, testing guidelines and specifications.

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.

Compressive Strength of Hydraulic Cement Mortars (2x2 Cubes)
Autoclave Expansion of Portland Cement
Length Change of Hardened Hydraulic-Cement Mortar and Concrete
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
Sampling and Testing Fly Ash or Natural Pozzolans for Use in Portland-Cement Concrete
Flexural Strength of Hydraulic-Cement Mortars
Compressive Strength of Hydraulic-Cement Mortars (Portions of Prisms Broken in Flexural)
Fineness of Hydraulic Cement by the 45-µm (No. 325) Sieve
Effectiveness of Pozzolans or Ground Blast-Furnace Slag in Preventing Excessive Expansion of Concrete Due to the Alkali-Slica Reaction
Specifications for Blended Hydraulic Cements
Drying Shrinkage of Mortar containing Hydraulic Cement
Specifications for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
Length Change of Hydraulic-Cement Mortars Exposed to A Sulfate Solution
Expansion of Hydraulic Cement Mortar Bars Stored in Water
Specifications for Hydraulic Cements
Silica Fume Used in Cementitious Mixtures
Flow of Hydraulic Cement Mortar
Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlays Materials by Direct Tension
 


Resources

AASHTO
ACI
American Coal Ash Association (ACAA)
Army Corps of Engineering
AMRL
ASTM
FRCA
IAS
ICC-ES
ICRI
International Ash Utilization Symposia Series(IAUS)
PCA

 

Petro Showing Fly Ash Petro Showing Fly Ash
Making AutoClave Bars Making AutoClave Bars
Flow Testing of Cement and Fly Ash Flow Testing of Cement and Fly Ash
Cutting Vicat Sample ASTM C 151 Cutting Vicat Sample ASTM C 151
Testing Vicat Flow ASTM C 151 Testing Vicat Flow ASTM C 151