Category: SEM

Is My Water Corrosive? Is My Water Scale Forming? How Langelier Saturation Index Measures How Aggressive or Scale Forming Water Is

by magroupllc, posted in Building Materials, Corrosion, Forensic Chemistry, Metals, Microscopy, SEM, water

Langelier Saturation Index (LSI) is a calculation that uses the data of multiple analyses to estimate how corrosive or scale-forming a water is. The chemistry of the water is analyzed, as well as the environmental conditions determined, to evaluate how likely the water would be to corrode or form a scale in pipes. LSI is … Continue reading Is My Water Corrosive? Is My Water Scale Forming? How Langelier Saturation Index Measures How Aggressive or Scale Forming Water Is

Case Study: Staining of Exterior Marble Tile Caused by Cold Applied Asphaltic Waterproofing Membrane: Solved by FTIR Analysis

by magroupllc, posted in Case Studies, Exposure Testing, FTIR, SEM

In 2013, marble tiles were installed as pedestrian pavers on the exterior plaza of a new condominium built near the Atlantic coast in Florida. After three years of being in service, the marble tiles started exhibiting orangish brown surface staining that had a similar appearance to iron oxide staining. Replacement of the marble tiles would … Continue reading Case Study: Staining of Exterior Marble Tile Caused by Cold Applied Asphaltic Waterproofing Membrane: Solved by FTIR Analysis