PETROGRAPHIC TESTING ON ROCK& AGGREGATE SAMPLES
We provide detailed petrographic description and classification of rocks based on mineralogy and texture, complying with relevant standards. It aids in accurate rock identification, facilitates communication among geoscientists, and documents rock properties for future reference. Key outcomes of petrographic testing include mineral identification, understanding texture and structure, assessing petrophysical properties, evaluating rock quality, and contributing to geological interpretation.
READ MOREROCKS & AGGREGATE
Rock type classification & mineral identification,
Description of paragenetic sequences of rock-forming and trace minerals, along with their modal percentages,
Rock texture and structure, including grains size, anisotropy, mineral distribution, etc,
Silica content and occurrence forms,
Rock petro-physical properties, including abrasiveness, hardness, porosity, etc.
Description of microstructures and mineral reactions
Ore minerals identification (reflected light)
Graphic supplementary materials, including annotated high-magnification photomicrographs
Engineering rock use advice
CONCRETE SAMPLES
Concrete petrographic examination involves detailed description and documentation of the sample, identifying constituents, microstructures, and anomalies. Results obtained from this examination include assessments of any deteriorations, aggregate characteristics, cement matrix, air-void system, aggregate-cement paste interface, microcracking, and surface defects, guiding maintenance and compliance with standards.
Identification of the constituents of the cement paste and aggregates
Cracks patterns & water to cement ratio
Identifying secondary deposits and deterioration mechanisms, including Alkali-Silica Reaction (ASR), Delayed Ettringite Formation (DEF), Sulphate & Acid Attack, etc.
STANDARDS COMPLIENCE
Our reports comply with industry standards ensuring that our services meet the highest levels of quality and compliance, including the following standards:
Australian
AS1141 – Standard Guide for the Method for sampling and testing aggregates
AS 2758 – Aggregates and rock for engineering purposes
AS 4964 – Method for the qualitative identification of asbestos in bulk samples
AS1726 – Geotechnical Site Investigation
International
ASTM C 856 Standard Recommended Practice for Petrographic Examination of Hardened Concrete
ASTM C295/C295M – Standard Guide for Petrographic Examination of Aggregates for Concrete
OTHER SERVICES
We are dedicated to providing accurate and insightful analyses to meet your geological and materials characterization needs. We also offer a comprehensive range of geological services and fieldwork, including:
Geological mapping
Geomorphological mapping
Rock drill core macroscopic description
Aerial and satellite images analysis, digitizing and deciphering