Corrosion doesn’t work in isolation. During our recent Concrete Preservation Alliance webinar Corrosion 101: Causes and Assessment Strategies, an attendee asked: “How does the combination of carbonation and chlorides affect the chloride threshold and overall corrosivity?” Our expert, Pratik Murkute, Ph.D., PE , NACE CP Specialist, explained how these two mechanisms don’t just coexist—they accelerate each other, lowering corrosion thresholds and increasing risk far beyond what you’d expect from either alone. This is the kind of real-world insight you can take back to your projects, directly from the experts! If you have corrosion-related questions, drop them in the comments below or ask them LIVE in our last session, “Uncovering the Unknown: Investigating Hidden Structural Conditions,” this Thursday, September 11th, 2025. Register for the final session now! https://lnkd.in/eBmMPj-V
How carbonation and chlorides combine to accelerate corrosion
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𝗗𝗼 𝘆𝗼𝘂𝗿 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲𝘀 𝗳𝗮𝗰𝗲 𝗰𝗮𝗿𝗯𝗼𝗻𝗮𝘁𝗶𝗼𝗻, 𝗰𝗵𝗹𝗼𝗿𝗶𝗱𝗲 𝗶𝗻𝗴𝗿𝗲𝘀𝘀 — 𝗼𝗿 𝗯𝗼𝘁𝗵? In our Corrosion 101 Webinar Q&A, one question asked how these two factors interact. 𝗛𝗲𝗿𝗲’𝘀 𝘄𝗵𝘆 𝗶𝘁 𝗺𝗮𝘁𝘁𝗲𝗿𝘀: • Carbonation reduces concrete’s pH, stripping away the passive layer that protects steel. (Parking garages exposed to CO₂ vehicle emissions or old structures are common examples.) • Chlorides typically penetrate from the outside, usually through seawater, marine spray, or de-icing salts. (Marine structures and bridge decks are common examples.) Each is a durability challenge, but when combined, they lower the chloride threshold dramatically and accelerate corrosion far beyond what you would see from one alone. This is one of the many real-world issues we addressed in the our Corrosion 101 session, presented by Pratik Murkute, Ph.D., PE , NACE CP Specialist. To watch the full Corrosion 101 Webinar, and our Advance Assessment Series, click the link below! https://lnkd.in/g_xYVMYG #ConcreteDurability #Corrosion101 #AdvanceAssessmentSeries #WeSaveStructures
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Where Chemical Anchors Excel ✔Cracked or low-strength concrete ✔Dynamic loads and high-vibration environments ✔Precision-critical fixings for structural elements By chemically bonding the anchor to the substrate, these systems distribute load more evenly—making them ideal for infrastructure, machinery, and seismic applications. For high-performance anchoring, trust the chemical advantage. #uniquebuildingmaterial #uniquebolt #uniquebuildingmaterials #uniquebolts #BuildingMaterials
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The main probkem with corrosion in concrete is not the lack of unserstanding, but lack of proper action. Read on how are transforming NDT data into meaningful actions: https://lnkd.in/ggTrzAuB
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Tap testing is the traditional method for finding delamination, its cheap and appears to work (although that is in question when subsequent surveys find the concrete repairing itself). However, it is slow and subjective, only proving information on sound and nothing about whats going on. Non-intrusive analysis (NIA) on the other hand is fast, objective and provides information on the delamination, its severity, plus corrosion risk, cover and variations in the construction details. The results are repeatable and reliable. The biggest advantage is the speed - typically, NIA is takes 25% of the time than a traditional tap test on site. It can be more expensive per day but the time savings mean that this is moot. When you bring in the cost of access (TM and MEWPS) NIA can be 50-60% the cost of traditional tap testing. This includes giving you all the additional information on corrosion risk, cover, and construction details. Is it time to start saving the clients money while giving them more? If you need to know how your structure is built and/or its condition, then reach out to us. We will provide actionable information to save you time and money. #StructuralInvestigation #NonIntrusiveAnalysis #NIA #GPR #ConcreteAssessment #NDT #InnovativeSolutions #BuildingInspection #CorrosionAssessment #InfrastructureHealth
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Soil Identification in Oil & Gas Pipeline Projects (UK Context) In every pipeline project, understanding the soil profile along the route is fundamental. Soil type affects trench stability, HDD feasibility, pipe bedding, corrosion potential, and even long-term pipeline integrity. 🔎 How soil is identified in UK pipeline projects? Site Investigation Standards: UK projects follow BS 5930 (Code of Practice for Ground Investigations) and BS EN ISO 14688 (Soil Classification). Field Tests: Visual and manual inspection: grain size, moisture, plasticity. Hand penetrometer tests for quick strength estimates. Laboratory Tests: Atterberg Limits (Liquid & Plastic Limits – soil consistency). Grain Size Distribution (sieve & hydrometer analysis). Moisture content & density. Geotechnical Tests: SPT (Standard Penetration Test) and CPT (Cone Penetration Test) provide soil strength and stratigraphy. 📌 Why it matters? Accurate soil classification ensures: Safe trench design (preventing collapse). Appropriate pipe bedding and backfill materials. Selection of trenchless vs. open-cut methods. Optimised corrosion protection and drainage solutions. In the UK, combining BS standards with ASTM/ISO methods ensures both local compliance and international best practice. #InsideEPC #PipelineEngineering #SoilInvestigation #BS5930 #GeotechnicalEngineering #OilAndGasUK
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What does ETA Option 1 really mean? An ETA (European Technical Assessment) certifies how a product performs under real-world conditions. When a Rawlplug anchor is marked 𝗘𝗧𝗔 𝗢𝗽𝘁𝗶𝗼𝗻 𝟭, it means: ✔ Safe to use in cracked and non-cracked concrete ✔ Tested for seismic loads and edge distances ✔ Complies with the highest European standards It’s not just a stamp - it’s your sign of quality and reliability. #ETAApproved #RawlplugPerformance #CertifiedAnchoring #RawlplugSA
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🚰 Water and wastewater pipelines are major infrastructure investments where long service life is essential. For more than 80 years, concrete pressure pipe (CPP) has been used successfully due to its combination of steel strength and cement mortar corrosion resistance. In this Materials Performance article, Kevin R. Baas (American Concrete Pressure Pipe Association) and Deyanira Escalante (Thompson Pipe Group) discuss: 🔹 The inherent corrosion protection of CPP 🔹 Supplemental measures for aggressive environments 🔹 Updates to American Water Works Association standards supporting durability Their work highlights how corrosion control methods contribute to the long-term performance of CPP in diverse conditions. 🔗Read more: https://lnkd.in/gdhcDucx #WaterInfrastructure #CorrosionProtection #ConcretePressurePipe
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In our latest white paper, “The Importance of Field Performance Testing for Fenestration Products,” we explore the significant challenges created by water intrusion and air leakage in fenestration systems, and present strategies for effective testing during construction. Field performance testing can help you identify design issues, enhance the longevity of your structures and gain confidence that your fenestration assemblies meet airtightness and water penetration performance requirements. Our commitment to the industry drives this vital conversation on improving fenestration performance. Don’t miss out on these valuable insights. Download the white paper today and elevate your projects! https://s.ul.com/3GQPZ6I #Fenestration #BuildingStandards #QualityAssurance #ConstructionIndustry #WhitepaperRelease
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In our latest white paper, “The Importance of Field Performance Testing for Fenestration Products,” we explore the significant challenges created by water intrusion and air leakage in fenestration systems, and present strategies for effective testing during construction. Field performance testing can help you identify design issues, enhance the longevity of your structures and gain confidence that your fenestration assemblies meet airtightness and water penetration performance requirements. Our commitment to the industry drives this vital conversation on improving fenestration performance. Don’t miss out on these valuable insights. Download the white paper today and elevate your projects! https://s.ul.com/3GQPZ6I #Fenestration #BuildingStandards #QualityAssurance #ConstructionIndustry #WhitepaperRelease
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In our latest white paper, “The Importance of Field Performance Testing for Fenestration Products,” we explore the significant challenges created by water intrusion and air leakage in fenestration systems, and present strategies for effective testing during construction. Field performance testing can help you identify design issues, enhance the longevity of your structures and gain confidence that your fenestration assemblies meet airtightness and water penetration performance requirements. Our commitment to the industry drives this vital conversation on improving fenestration performance. Don’t miss out on these valuable insights. Download the white paper today and elevate your projects! https://s.ul.com/3GQPZ6I #Fenestration #BuildingStandards #QualityAssurance #ConstructionIndustry #WhitepaperRelease
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