Our services

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. 

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ROCKS & 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