Mitigating Chemical Reactions in Concrete
The Applied Technical Services Family of Companies (ATS FoC) provides alkali-silica reaction (ASR) testing to assess whether aggregates will react with alkalis in cement. When alkalis and reactive silica interact, they can undergo a chemical reaction, forming a gel that expands with moisture, potentially causing concrete to crack and deteriorate. ASR testing identifies susceptible aggregates before they are used in construction.
We help manage ASR risk in major infrastructure projects such as highways, bridges, dams, and commercial buildings, where concrete strength is critical. The goal is to protect the structural integrity of infrastructure and help ensure long-term durability.
What Standards and Methods Are Applied in ASR Testing?
In compliance with DOT, ASTM, and AASHTO standards, our expert engineers and technicians use a combination of screening methods, long- and short-term tests, and detailed analyses to validate aggregate suitability such as:
- ASTM C289: Aggregate Chemical Analysis – Screens for reactivity risk by measuring chemical interactions between aggregate materials and alkali solutions.
- ASTM C295: Petrographic Analysis and Examination – Identifies reactive minerals in aggregate samples.
- ASTM C1260: Accelerated Mortar Bar Testing (AMBT) – Rapidly evaluates potentially reactive aggregates.
- ASTM C1293: Concrete Prism Testing (CPT) – Long-term assessment of ASR potential in real-world environments.
ATS facilities are accredited by ISO/IEC 17025:2017 and registered under ISO 9001:2015. Our network of laboratories is equipped with advanced technology and multiple testing stations to efficiently manage high testing volumes.
Turning ASR Test Data into Confident Decisions
Our comprehensive documentation and reporting provide clear interpretation of ASR testing results, enabling clients to make informed decisions. Our experts can also advise on material selection and mitigation strategies for ASR-resistant concrete mix designs.
ATS has been a trusted partner in the testing, inspection, certification, and calibration (TICC) industry since 1967. After joining SGS, the world’s leading TICC company, in 2026, we expanded our services and capabilities and now serve clients globally.
Contact Us
Whether you need routine evaluation or large-scale testing, our on-site services and scalable laboratories can support your project at any stage. We integrate aggregate testing services and concrete testing services to provide a comprehensive, single-source testing program for all your construction needs.
Submit a web request form or call +1 (888) 287-5227 to get started with ATS today.
