Admixture Laboratory

Chemical admixtures have become an important part of everyday concrete production. Thanks to admixtures we are able to alter the performance of concrete in ways that previously were not possible.

There are several types of admixtures such as:

  1.  Water Reducing Admixtures – Low range, mid-range and high range that allow you to reduce water in concrete, therefore increasing the strength of the concrete.
  2. Retarding and Accelerating Admixtures allow you vary the setting time of the concrete.
  3. Shrinkage-Reducing Admixtures are used to minimize shrinkage in concrete and subsequently the tendency of cracking.
  4. Alkali-Silica (ASR) Suppressing Admixtures help mitigate or suppress ASR.
  5. Air Entraining Admixtures which allow the concrete producer to control the amount of air in a concrete mix. The air content in concrete often determines how well it will withstand freezing and thawing

” Our laboratory has performed research, quality control, and certification testing with just about every type of admixture produced.  We pride ourselves in the quality of our work and our capabilities in working with the admixture and concrete industry. “

Our Accreditations

Our laboratory is audited and/or inspected by A2LA, AMRL (AASHTO Materials Reference Laboratory), CCRL (Cement and Concrete Reference Laboratory) and the US Army Corps of Engineers for admixture testing.

Our laboratory accreditations include: ISO 17025, AASHTO R18 and we are an approved laboratory for the US Army Corps of Engineers.  We can submit data to ICC-ES (International Code Council – Evaluation Service) for AC 198 Acceptance Criteria for Chemical Admixtures Used in Concrete.  We work closely with ASTM in the development of test methods, testing guidelines and specification for all types of admixtures.

We work closely with ASTM in the development of test methods, testing guidelines and specifications for all types of admixtures.

A basic list of some of the admixture 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.


Making and Curing Concrete Tests Specimens in the Field
Specification for Concrete Aggregates
Compressive Strength of Cylindrical Concrete Specimens
Flexural Strength of Concrete
Sieve Analysis of Fine and Coarse Aggregates
Density, Yield, and Air Content of Concrete
Slump of Hydraulic Cement Concrete
Specification for Portland Cement
Length Change of Hardened Hydraulic-Cement Mortar and Concrete
Sampling Freshly Mixed Concrete
Air Content of Freshly Mixed Concrete by the Volumetric Method
Air Content of Hydraulic Cement Mortar
Making and Curing Concrete Test Specimens in the Laboratory
Fundamental Transverse, Longitudinal and Torsional Frequencies of
Concrete Specimen
Air Content of Freshly Mixed Concrete by the Pressure Method
Bleeding of Concrete
Air-Entraining Admixtures for Concrete
Specification for Air-Entraining Admixtures for Concrete
Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Center-Point Loading)
Guide for Petrographic Examination of Aggregates for Concrete
Standard Specification for Packaged, Dry, Combined Materials for
Concrete and High Strength Mortar
Time of Setting of Concrete Mixtures by Penetration Resistance
Abrasion Resistance of Concrete by Sandblasting
Bond Strength of Ceramic Tile to Portland Cement Paste
Specification for Chemical Admixtures for Concrete
Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
Creep of Concrete and Compression
Determining Density of Structural Lightweight Concrete
Capping Cylindrical Concrete Specimens (for 7000 psi and below)
Resistance of Concrete to Rapid Freezing and Thawing
Making, Accelerated Curing, And Testing Concrete Compression Test Specimen
Rebound Number of Hardened Concrete
Change in Height at Early Ages of Cylindrical Specimen of
Cementitious Mixtures
Petrographic Examination of Aggregates of Harding Concrete
Restrained Expansion of Shrinkage-Compensating Concrete
Flow Of Grout for Preplaced-Aggregate Concrete (Flow Cone Method – Pre-Mixed Grou
Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory (Pre-mixed Grout)
Standard Specification for Slag Cement for Use in Concrete and Mortars
Specification for Chemical Admixtures for Use in Producing Flowing
Temperature of the Freshly Mixed Hydraulic-Cement Concrete
Estimating Concrete Strength by the Maturity Method
Standard Practice for Agencies Testing Concrete and Concrete Aggregates
Estimating Concrete Strength by the Maturity Method
Length Change of Concrete due to Alkali-Carbonate Rock Reaction
Abrasion Resistance of Concrete (Underwater Method)
Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
Standard Test Method for Water-Soluble Chloride in Mortar Concrete
Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders
Measuring the P-Wave Speed and the Thickness of Concrete Plates Using the Impact-Echo Method
Making Length of Concrete Cores
Flexural Toughness of Fiber Reinforced Concrete (Using Central Loaded Round Panels)
Tensile Strength & Young’s Modulus of Fibers
Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate
(Accelerated mortar-bar method)
ASTM C1610 Standard Test Method for Static Segregation of Self
Consolidating Concrete Using Column Technique
ASTM C1611 Standard Test Method for Slump Flow of Self
Consolidating Concrete
ASTM C1621 Standard Test Method for Passing Ability of Self
Consolidating Concrete by J-Ring
ASTM C1697 Standard Specification for the Blending of Supplementary Cementitious Materials
ASTM C1712 Standard Test Method for Rapid Assessment of Static Segregation Resistance of Self-Consolidating Concrete
Using Penetration Test
ASTM C1741 Water Permeability of Concrete
ASTM C1758 Standard Practice for Fabrication Test Specimens with Self-Consolidating Concrete
ASTM C1812 Standard Practice for Design of Journal Bearing Supports to be used in Fiber Reinforced Concrete Beam Tests
ASTM D4060 Standard Test Method for Abrasion Resistance of Organic Coating by the Taber Abrasion
ASTM D7508 Standard Specifications for Polyolefin Chopped Strands for Use in Concrete
ASTM E329 Standard Specification for Agencies Engaged in the Testing and/or Inspection of Materials Used in Construction
ASTM G109 Determining Effects of Chemical Admixtures on Corrosion
of Embedded Steel Reinforcement in Concrete Exposed to Chloride
ISO/IEC 17025 Establishing and Implementing a Quality System for Construction Materials Testing Laboratories
ICC-ES AC 198 Acceptance Criteria for Chemical Admixtures Used in
ICC-ES AC 383 Polyolefin Chopped Strands for Use in Concrete
ICC-ES AC 32 Acceptance Criteria for Concrete with Synthetic Fibers
ICC-ES AC 51 Acceptance Criteria for Precast Stone Veneer
ICC-ES AC 208 Acceptance Criteria for Steel Fibers in Concrete
CRD-C12 Air-Entraining Admixtures for Concrete
CRD-C13 Specification for Air-Entraining Admixtures for
CRD-C48 Standard Test Method for Water Permeability of Concrete
CRD-C61 Test Method for Determining the Resistance of Freshly
Mixed Concrete to Washing Out in Water
CRD-C87 Specification for Chemical Admixtures for Concrete
CRD-C88 Specification for Chemical Admixtures for Use in
Producing Flowing Concrete
CRD-C661 Specification for Anti-washout Admixtures for Concrete