Laboratory Testing

DGL Testing Services specialises in a wide range of laboratory tests for aggregates, asphalt, bituminous mixtures, road pavement surfaces, soils, and geotechnical investigations. Our laboratory facilities and experienced team of technicians ensure that all tests are conducted with precision and accuracy, meeting the highest industry standards. Whether you require soil testing, aggregate testing, concrete testing, rock testing, or bituminous mixture testing, you can trust us to deliver reliable results that meet your requirements.

See below our laboratory testing services:

Aggregates

Insights crucial for material behaviour and quality control.

Providing valuable aggregate composition and characteristic data.

Facilitating the optimisation of material mixtures for improved performance and durability.

Bituminous Mixtures

DGL Testing Services offers comprehensive sample preparation services essential for :

Determining air void content and Percentage Refusal Density (PRD), providing precise measurements of bituminous pavement thickness and conduct.

Core Logging

Core logging involves the extraction and examination of cylindrical core samples from road surfaces. This process is crucial for assessing the physical properties and performance of road materials, including asphalt and concrete. Core samples provide invaluable insights into the composition, density, and potential defects within the roadway structure.

Our Core Logging Process:

1. Sample Extraction: Utilising advanced coring rigs, we extract core samples with minimal disruption to the surrounding area. Our equipment ensures precise cutting to obtain clean, intact cores for analysis.
2. Sample Preparation: Once extracted, cores are prepared for detailed examination. This includes cleaning, cutting, and marking the samples to ensure accurate logging and analysis.
3. Visual Inspection: Our experienced technicians perform a thorough visual inspection of each core, noting key features such as identifying different layers, aggregate size, voids in layer, condition of layer and contamination.
4. Analysis: We can also conduct a range of tests to determine the material properties of the core samples. These tests may include:

Soils

At DGL Testing Services, our expertise spans various soil testing methodologies crucial for construction and geotechnical projects. We meticulously analyse moisture content using oven drying and determine particle size distribution through wet and dry sieving techniques.

Precise assessment of liquid limit using cone penetration tests and cone penetrometer methods, alongside plastic limit and plasticity index determinations.
Determine particle density using the gas jar method and establish dry density/moisture content relationships using compaction methods such as 2.5 kg rammer, 4.5 kg rammer and vibrating hammer.
Comprehensive evaluations of moisture condition value (MCV) for soil samples at natural moisture content, aiding in understanding soil behaviour under various conditions.

If you are looking for reliable testing services for your construction projects, get in touch with a member of the DGL team today.