Quality Control - Mert Dokum Since 1990

Polymer Concrete Tests

Aggregate Tests

Sieve Analysis (Sleeve Test)

Sieve analysis determines the particle size distribution of aggregates. The sleeve test involves passing aggregates through a series of sieves to separate them into different sizes, helping to ensure uniformity in polymer concrete.

Moisture Analysis (Moisture Test)

Moisture analysis measures the water content in aggregates, crucial for accurate mix design. Excessive moisture can affect the polymer concrete's strength and durability.

Fresh Concrete Tests

Slump Table Test

The slump test evaluates the consistency and workability of fresh polymer concrete. It involves measuring the vertical displacement of the concrete mass after a standard slump cone is removed.

Socket Start Time Test

Gel time is the time taken for the polymer concrete to start solidifying. The socket start time test determines the initial setting time, crucial for proper placement and consolidation.

Setting Time Test

Peak time test measures the time taken for polymer concrete to reach its peak strength. It ensures that the concrete achieves sufficient strength before further handling.

Socket Temperature Test

Peak temperature test monitors the maximum temperature reached during the curing process. Controlling peak temperature is vital to prevent cracking and ensure the integrity of the polymer concrete.

Hard Concrete Tests

Compression Test

Compression tests assess the strength of hardened polymer concrete by applying axial loads. This test helps in determining the material's load-bearing capacity.

Bending Strength Test (Three Point Bending Test)

The three-point bending test evaluates the flexural strength of polymer concrete. It is crucial for assessing the material's ability to withstand bending forces.

Density Test

Density tests determine the mass per unit volume of hardened polymer concrete, providing insights into its structural and thermal properties.

Hardness Test

Hardness tests measure the resistance of polymer concrete to indentation or scratching, providing information about its durability and wear resistance.

Ductile Iron Tests

Macro & Micro Structure Examination Tests

Metallographic Examinations

Metallographic examinations involve studying the structure of ductile iron at both macro and micro levels. This helps identify any defects or irregularities in the material.

Chemical Analysis Tests

Chemical analysis tests determine the composition of ductile iron, ensuring it meets specified standards and is suitable for its intended application.

Spectrometer

Spectrometer analysis provides precise information about the elemental composition of ductile iron, aiding in quality control and material characterization.

Mechanical Tests

Tensile Test

Tensile tests assess the strength and ductility of ductile iron by subjecting specimens to axial tension. This helps ensure the material's ability to withstand pulling forces.

Hardness Test

Hardness tests on ductile iron assess its resistance to deformation and wear, providing valuable information about its mechanical properties.

Compression Test

Compression tests evaluate the ability of ductile iron to withstand axial loads, helping determine its load-carrying capacity.

Molding Sand Tests

Moisture Control

Moisture control ensures the molding sand has the optimal water content, essential for proper compaction and mold formation.

Sieve Analysis

Sieve analysis of molding sand ensures consistent particle size distribution, contributing to the quality and strength of the final casting.

Slump Test Control

Slump tests on molding sand assess its workability and consistency, crucial for achieving accurate and reproducible molds.

Determination of Active Clay

The active clay test identifies the proportion of active clay in molding sand, preventing issues such as poor mold permeability.

Burning Loss (Flammability Rating Test)

Burning loss tests measure the weight loss of molding sand during the casting process, providing insights into its stability and suitability for use.

Gas Permeability Test

Gas permeability tests evaluate the ability of molding sand to allow gases to escape during casting, ensuring the production of defect-free castings.

Wet Compression Strength

Wet compression strength tests assess the strength of molding sand in its wet state, providing information about its stability during casting.

Wet Shear Strength

Wet shear strength tests measure the ability of molding sand to resist shear forces when wet, ensuring the integrity of the mold during casting.

Physical Examination

Weight Control

Weight control ensures that the final product meets specified weight requirements, crucial for quality and performance.

Geometry Control

Geometrical control involves verifying the dimensions and shape of the product, ensuring it meets design specifications.

Assembly Control

Assembly control assesses the fit and alignment of components, guaranteeing proper functioning and structural integrity.

Functionality Control

Functionality control evaluates the usability and performance of the final product, ensuring it meets intended use requirements.

Packing Quality Control

Alignment Controls

Alignment controls ensure that packaged products are properly aligned and positioned within their packaging, preventing damage during transit.

Weight Controls

Weight controls verify that the packaged products meet specified weight requirements, crucial for shipping cost calculations and compliance.

Quantity Controls

Quantity controls ensure that the correct number of products are included in each package, preventing discrepancies and customer dissatisfaction.

Label Controls (Ticket/Barcode Control)

Label controls verify the accuracy and completeness of product labels or barcodes, ensuring proper identification and tracking throughout the supply chain.