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 to 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.
These are just a few of the admixtures available for helping concrete performance.
Our laboratory has performed research, quality control, and certification testing with just about every type of admixture produced. Here at TEC Services, we pride ourselves in the quality of our work and our capabilities in working with the admixture and concrete industry. 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.
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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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Air Content of Hydraulic Cement Mortar
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Making and Curing Concrete Test Specimens in the Laboratory
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Air Content of Freshly Mixed Concrete by the Pressure Method
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Air-Entraining Admixtures for Concrete
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Specification for Air-Entraining Admixtures for Concrete
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Time of Setting of Concrete Mixtures by Penetration Resistance
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Specification for Chemical Admixtures for Concrete
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Resistance of Concrete to Rapid Freezing and Thawing
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Specification for Chemical Admixtures for Use in Producing Flowing Concrete
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