AASHTO M194
Full Name
AASHTO M194 – Standard Specification for Chemical Admixtures for Concrete
Scope
AASHTO M194 is a standard specification that outlines the requirements and testing methods for chemical admixtures used in concrete. Chemical admixtures are additives that are added to concrete in small amounts to modify its properties and performance.
Key aspects of AASHTO M194:
- Types of admixtures: the standard covers a wide range of chemical admixtures, including:
- Accelerators: accelerate the setting and hardening of concrete.
- Retarders: delay the setting and hardening of concrete.
- Water reducers: reduce the amount of water required in a concrete mix, resulting in improved strength and durability.
- Air-entraining admixtures: introduce and stabilize microscopic air bubbles in the concrete to improve its freeze-thaw resistance.
- Corrosion inhibitors: reduce the corrosion of steel reinforcement in concrete.
- Other admixtures: various other types of admixtures are also covered, such as plasticizers, antifoaming agents, and bonding agents.
- Performance requirements: AASHTO M194 establishes performance requirements for each type of admixture, ensuring that they meet the intended purpose and do not adversely affect the properties of the concrete.
- Testing methods: the standard outlines standardized test procedures for evaluating the performance of chemical admixtures in both laboratory and field conditions.
Significance of AASHTO M194:
- Improved concrete properties: by using chemical admixtures that comply with AASHTO M194, concrete producers can achieve specific properties and performance characteristics in their concrete mixes. This allows for the optimization of concrete for various applications and environmental conditions.
- Quality control: the standard provides a framework for ensuring the quality and consistency of chemical admixtures used in construction projects. This helps ensure that concrete meets the required performance specifications and durability standards.
- Standardized testing: AASHTO M194 provides standardized test methods, ensuring reliable and comparable results when evaluating the performance of different chemical admixtures.
AASHTO M194 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the AASHTO M194 standard: testing plans for concrete admixtures.
Our laboratory offers comprehensive testing services for chemical admixtures based on AASHTO M194 and other relevant standards. Our experienced technicians conduct precise laboratory and field tests to evaluate the properties and performance of your admixtures, ensuring that they meet the required specifications and contribute to the desired performance of your concrete structures.
Contact us for more information.
Resources
Keywords
chemical admixture; concrete; accelerator; retarder; water reducer; air-entraining admixture; plasticizer; superplasticizer; corrosion inhibitor; alkali-silica reactivity inhibitor; shrinkage-reducing admixture