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:
- 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.
- Retarding and Accelerating Admixtures allow you vary the setting time of the concrete.
- Shrinkage-Reducing Admixtures are used to minimize shrinkage in concrete and subsequently the tendency of cracking.
- Alkali-Silica (ASR) Suppressing Admixtures help mitigate or suppress ASR.
- 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 ASTM 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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Making and Curing Concrete Tests Specimens in the Field
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Specification for Concrete Aggregates
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Compressive Strength of Cylindrical Concrete Specimens
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Flexural Strength of Concrete
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Sieve Analysis of Fine and Coarse Aggregates
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Density, Yield, and Air Content of Concrete
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Slump of Hydraulic Cement Concrete
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Specification for Portland Cement
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Length Change of Hardened Hydraulic-Cement Mortar and Concrete
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Sampling Freshly Mixed Concrete
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Air Content of Freshly Mixed Concrete by the Volumetric Method
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Air Content of Hydraulic Cement Mortar
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Making and Curing Concrete Test Specimens in the Laboratory
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Fundamental Transverse, Longitudinal and Torsional Frequencies of
Concrete Specimen |
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Air Content of Freshly Mixed Concrete by the Pressure Method
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Bleeding of Concrete
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Air-Entraining Admixtures for Concrete
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Specification for Air-Entraining Admixtures for Concrete
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Standard Test Method for Flexural Strength of Concrete (Using Simple Beam with Center-Point Loading)
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Guide for Petrographic Examination of Aggregates for Concrete
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Standard Specification for Packaged, Dry, Combined Materials for
Concrete and High Strength Mortar |
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Time of Setting of Concrete Mixtures by Penetration Resistance
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Abrasion Resistance of Concrete by Sandblasting
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Bond Strength of Ceramic Tile to Portland Cement Paste
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Specification for Chemical Admixtures for Concrete
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Moist Cabinets, Moist Rooms, and Water Storage Tanks Used in the Testing of Hydraulic Cements and Concretes
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Creep of Concrete and Compression
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Determining Density of Structural Lightweight Concrete
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Capping Cylindrical Concrete Specimens (for 7000 psi and below)
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Resistance of Concrete to Rapid Freezing and Thawing
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ASTM C684
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Making, Accelerated Curing, And Testing Concrete Compression Test Specimen
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Rebound Number of Hardened Concrete
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Change in Height at Early Ages of Cylindrical Specimen of
Cementitious Mixtures |
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Petrographic Examination of Aggregates of Harding Concrete
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Restrained Expansion of Shrinkage-Compensating Concrete
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Flow Of Grout for Preplaced-Aggregate Concrete (Flow Cone Method – Pre-Mixed Grou
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Compressive Strength of Grouts for Preplaced-Aggregate Concrete in the Laboratory (Pre-mixed Grout)
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Standard Specification for Slag Cement for Use in Concrete and Mortars
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Specification for Chemical Admixtures for Use in Producing Flowing
Concrete |
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Temperature of the Freshly Mixed Hydraulic-Cement Concrete
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Estimating Concrete Strength by the Maturity Method
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Standard Practice for Agencies Testing Concrete and Concrete Aggregates
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Estimating Concrete Strength by the Maturity Method
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Length Change of Concrete due to Alkali-Carbonate Rock Reaction
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ASTM C1138
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Abrasion Resistance of Concrete (Underwater Method)
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Standard Test Method for Acid-Soluble Chloride in Mortar and Concrete
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Standard Test Method for Water-Soluble Chloride in Mortar Concrete
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Use of Unbonded Caps in Determination of Compressive Strength of Hardened Concrete Cylinders
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Measuring the P-Wave Speed and the Thickness of Concrete Plates Using the Impact-Echo Method
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Making Length of Concrete Cores
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Flexural Toughness of Fiber Reinforced Concrete (Using Central Loaded Round Panels)
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Tensile Strength & Young’s Modulus of Fibers
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Determining the Potential Alkali-Silica Reactivity of Combinations of Cementitious Materials and Aggregate
(Accelerated mortar-bar method) |
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| 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 Environments |
| 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 Concrete |
| 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 Concrete |
| 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 |
