The Applied Technical Services Family of Companies (ATS FoC) Concrete Testing Lab performs ASTM C295 testing to assess the composition and performance potential of aggregates for concrete and construction. ASTM C295 outlines petrographic examination procedures to identify mineral constituents, textures, weathering, alteration, and other factors affecting performance. We adhere to these standards to provide detailed material evaluations and quality control information to manufacturers, engineers, contractors, and aggregate producers.
When Is ASTM C295 Testing Required for Aggregates?
ASTM C295 testing is recommended when assessing aggregate composition prior to material source approval or when investigating concrete performance issues. Engineers may request petrographic examinations for source qualification, quality control, distress evaluation, or material acceptance. This examination identifies harmful constituents, unusual mineralogy, weathering, coatings, fractures, and other features that impact aggregate suitability. ASTM C295 can also supplement other testing methods for a comprehensive material assessment.
Our ASTM C295 Testing Services
Concrete Testing Lab offers laboratory examinations conducted by experienced staff using advanced analytical resources. Our ASTM C295 services include sample preparation, stereomicroscopic examination, petrographic characterization, mineral identification, and assessment of aggregate texture and condition. We use polarized light microscopes (PLM) to evaluate the following aggregate properties:
- Aggregate Lithology (Rock Type)
- Alkali-Carbonate Reactivity (ACR) Potential
- Alkali-Silica Reactivity (ASR) Potential
- Durability
- Pyrrhotite Content
- Quality
- Staining Potential
- Water Demand Effects
We document key characteristics and provide technical findings to support aggregate quality evaluations. Testing programs can include ASTM methods and project-specific requirements as needed. Our quality system and laboratory credentials ensure reliable, technically sound results.
How Does ASTM C295 Testing Support Concrete Durability?
Aggregate characteristics are critical to concrete durability. ASTM C295 petrographic examination gives engineers information on constituents and properties that may cause cracking, deterioration, dimensional instability, or other durability concerns. Identifying harmful materials before construction enables project teams to assess aggregate sources and make informed selections. Petrographic findings can also help determine causes of distress in existing concrete by linking deterioration to aggregate characteristics. Combined with performance testing, ASTM C295 results offer a strong technical basis for evaluating aggregate suitability and developing durable concrete mixtures.
Contact Us
If you need ASTM C295 testing for an aggregate source or concrete investigation, please submit an online inquiry or call +1 (888) 287-5227 to discuss your needs with our team.
