Construction Materials Testing & Analysis Solutions

Cement & Concrete Quality Control

From the quarry to the kiln, maintaining precise control over raw material composition is the key to producing high-performance cement. This section focuses on the critical determination of Carbon, Sulfur, and moisture content in limestone, dolomite, and fly ash.

Whether you are monitoring Loss on Ignition (LOI) to ensure chemical stability or analyzing clinker microstructure for quality assurance, our solutions provide the data needed to optimize fuel usage, reduce rework, and meet strict environmental standards. Build a foundation of consistency with elemental analysis designed for the minerals industry.

Bestimmung von Kohlenstoff und Schwefel in Kalkstein und Dolomit

This application note outlines total carbon and sulfur determination in limestone and dolomite using the LECO CS844 Series. Induction furnace combustion with dual-range detection ensures accurate purity verification for industrial and construction applications.

Bestimmung von Schwefel und Kohlenstoff in Zement, Ton, Flugasche, Kalkstein, Boden und Erz

Carbon and sulfur determination is essential for quality control in cement production, soil characterization, and metal recovery processes. Reliable analysis supports process optimization, environmental monitoring, and consistent material performance across raw and finished products.

Glühverlust (GV) in Verbrennungsrückständen

Loss on Ignition (LOI) in combustion residues is a critical quality parameter for cement and related industries. Macro thermogravimetric analysis using the LECO TGA801 enables accurate, representative LOI measurements on heterogeneous samples.

Zementklinker-Analyse

By examining cement clinker microstructure, producers can detect changes in crystal size, shape, and phase distribution that may not be revealed through mechanical or chemical testing alone. The application note details best practices for sample storage, sectioning, mounting, grinding, polishing, etching, and microscopic analysis, along with image-based phase quantification using automated analysis tools. Routine clinker…

Split Loss-on-Ignition Analysis of Cement

Die Bestimmung des Glühverlusts (LOI) und des Split-LOI-Werts ist für die Bewertung der Zementqualität, des Wassergehalts und der Karbonatisierung von entscheidender Bedeutung. Mithilfe der thermogravimetrischen Analyse führt das LECO TGA801 auf einzigartige Weise Split-LOI-Messungen bei mehreren Temperaturen in einem einzigen Durchlauf durch, was eine effiziente Bestimmung des CO₂-Gehalts ermöglicht und sicherstellt, dass die Zementzusammensetzung den Qualitäts- und Sicherheitsanforderungen entspricht.

Ensure Quality, Avoid Failures

Structural integrity begins at the microscopic level. For manufacturers and engineers working with rebar, structural beams, and metal building components, verifying material purity is vital for ensuring the safety and longevity of a project. This section focuses on the critical analysis of inclusions and chemical uniformity within steel products. From specialized sample preparation techniques to solving the challenges of analyzing difficult part geometries, our solutions provide the clarity needed to prevent material failure and ensure every batch meets rigorous construction codes.

Massenanalyse von niedrig legierten, Cr-Mo, Automaten- und Austenitischen Hochmanganstählen

Chemical composition is essential for accurate steel identification and classification, as mechanical properties alone cannot reliably distinguish alloy types. Using the LECO GDS900, producers can determine iron, carbon, alloying elements such as chromium, nickel, manganese, vanadium, and molybdenum, as well as modifiers like sulfur and lead. The glow discharge source minimizes metallurgical history effects, reduces…

Massenanalyse von korrosions- und hitzebeständigen Stählen

Stainless steel properties are directly tied to alloying elements such as chromium and nickel, as well as carbon, manganese, molybdenum, and copper. This application note outlines how the GDS900 glow discharge atomic emission spectroscopy provides linear response, minimal spectral interferences, and reduced metallurgical history effects, enabling reliable composition verification for producers and manufacturers. Accurate bulk…

Kohlenstoff und Schwefel in Eisen-, Stahl-, Nickelbasis- und Kobaltbasislegierungen

Carbon and sulfur are critical quality metrics that influence hardness, ductility, weldability, wear resistance, and malleability. The application note outlines sample preparation best practices, references applicable ASTM standards, and explains how the CS induction furnace enables fast, accurate analysis to support efficient production and quality control workflows.

Bestimmung von Wasserstoff in Stahl und Eisen

This application note details accurate hydrogen determination in steel and iron using the LECO H836EN. The impulse furnace and thermal conductivity detection system deliver precise low-level hydrogen analysis to support quality control and prevent embrittlement, blistering, and flaking.

Sauerstoff und Stickstoff in festem Eisen, Stahl, Nickelbasis- und Kobaltbasislegierungen

Accurate control of oxygen and nitrogen levels is critical for managing porosity, inclusions, corrosion resistance, strength, and overall alloy performance. This application note outlines recommended sample preparation, applicable ASTM and ISO methods, hardware requirements, system settings, and expected analytical performance for reliable routine analysis.

Automatische metallographische Probenpräparation

LECO’s automatic specimen preparation system streamlines metallography by reducing grinding and polishing steps, ensuring reproducible, high-quality surfaces while saving time and consumables. Ideal for steels, cast irons, superalloys, titanium, aluminum, and microcircuit samples.

Schwefel-Druck

Sulfur printing is a metallographic technique that reveals sulfur distribution in ferrous alloys, highlighting segregated regions and potential hot shortness. This method provides macro-scale insight that complements precise instrumental sulfur analyses.

Delta-Ferrit in martensitischen rostfreien Stählen freilegen

This method describes how to selectively stain delta ferrite in martensitic stainless steels using a 20% NaOH electrolytic etch. The technique improves contrast for accurate quantitative image analysis and volume fraction measurement in alloys such as 17-4 PH.

Präparationstechniken in der Metallographie

Sectioning is the first and critical step in metallographic specimen preparation, reducing large samples to manageable sizes. Correct sectioning prevents damage that could compromise subsequent grinding, polishing, and analysis.

Bestimmung von ONH in Legierungen: Optimierung von Zykluszeit und Leistung

Sauerstoff, Stickstoff und Wasserstoff sind entscheidende Qualitätskennzahlen bei Stahl sowie bei Legierungen auf Nickel- und Kobaltbasis, da sie einen direkten Einfluss auf Festigkeit, Duktilität, Porosität und Versprödung haben. Entdecken Sie die Prinzipien der simultanen ONH-Bestimmung mit dem LECO ONH836, der mithilfe eines Hochleistungs-Elektrodenofens die Zielgase schnell freisetzt und misst. Außerdem werden bewährte Verfahren für die Probenahme und die Probenvorbereitung beschrieben…

High-precision Analysis for the Exact Makeup of Coatings

Protection is as important as the structure itself. In this section, we explore high-precision analysis for galvanized, aluminized, and painted surfaces that prevent corrosion and extend the life of building materials. Using Compositional Depth Profiling (CDP), you can visualize the exact chemical makeup of a coating from the surface down to the substrate. Ensure uniform application, verify coating thickness, and maintain the aesthetic and functional standards required for modern architectural finishes and protective barriers.

Zusammensetzungs-Tiefenprofilanalyse von verzinktem Stahl

This document details the compositional depth profile analysis of various galvanized coatings using the LECO GDS950. It explains how to achieve rapid, accurate results for zinc and zinc-alloy coatings following ISO 16962.