Aali R. Alizadeh’s Post

Rebar corrosion is a recurrent problem in the construction industry. More specifically, it can: 📉 Affect the quality of a project by cracking and damaging the concrete 💸 Add costs of repairs Fortunately, there are new technologies that can help us deal with corrosion in a practical manner! 🌟 iCOR® is the most convenient corrosion rate measurement device in the field and offers an innovative research tool for laboratory studies. It gives engineers a comprehensive understanding of concrete quality and the level of corrosion—allowing them to make faster, more informed decisions when it comes to rehabilitation and repair. Get the details about iCOR in our blog 👇 https://hubs.ly/Q02hKd_30 #Corrosion #Concrete #Rebar #Sensor #CEPRA #Technology

What's the Half-Cell Potential Test? 🧐 The half-cell potential test is used to determine the probability of corrosion within the rebar in reinforced concrete structures. 🏢 At first glance, this test method seems very simple: 1) Identify rebar location 2) Make a connection with the reinforcement (more than one connection can be required if there is a discontinuity between reinforcements) 3) Prepare concrete surface through wetting Measurements are quick as potential values only take a few seconds to stabilize before the next measurement can be taken. However, there are important limitations in terms of data interpretation that need to be taken into consideration. With Giatec’s XCell™ device, it uses a silver/silver chloride electrode, making this NDT device more stable and accurate than other half-cell devices which use a copper/copper sulfate electrode. It can be very useful in doing a quick assessment and identifying the regions where there might be a relatively higher corrosion activity. Want to learn more about half-cell potential test and XCell™? Read all about it here👇 https://hubs.ly/Q02bGThf0 #HalfCellPotentialTest #Concrete #Construction

I've been a big fan of Giatec | Smart Construction Solutions for years and used their thermocouples in a number of projects. I often get asked how to tell if a bridge is in good enough condition to apply a #UHPC overlay vs. full deck replacement. The answer has to do with corrosion particularly whether or not corrosion (and the associated salts, chlorides) have migrated to the lower rebar mat and started the corrosive chemical reaction. #civilengineering #bridgerehabilitation UHPC Solutions

Discover the unyielding strength of Forgeweld's composite tanks—where steel's might meets polyester's resilience. No corrosion, no fuss, just a dependable storage solution. These tanks are designed with the structural integrity of a 6 mm SABS Grade 355JR carbon steel plate, complemented by the corrosion resistance of a 2.5 to 3 mm thick Fibreglass Reinforced Polyester (FRP) shell (Spec UL1746). They boast high tensile strength and impact properties, making them suitable for the safe storage of all blends of conventional and oxygenated fuels, including methanol. Learn more: https://lnkd.in/dpkGaMr #ForgeweldEngineering #CorrosionResistant #OxygenatedFuel #SteelTanks

What is Corrosion? Corrosion is a natural process where metals deteriorate due to reactions with their environment, resulting from chemical and electrochemical reactions. In the context of concrete structures, corrosion often refers to the deterioration of the steel reinforcement within the concrete. Why Does Steel in Concrete Corrode? Steel embedded in concrete forms a passive oxide film due to the high pH of the concrete. This high pH environment promotes the creation of a stable, tightly adhered oxide layer that acts as a protective barrier for steel. However, steel can corrode when the concrete is contaminated with corrosive compounds or exposed to reactive liquids and gases, initiating the corrosion process. To learn more, check the educational materials on our website: www.vector-corrosion.com . . Vector Corrosion Technologies David Whitmore . #corrosion #concrete #concreterepair #engineering

Understanding crack bridging: why testing matters.   Crack bridging, also known as crack or joint sealants and asphalt plug joints, is essential for sealing cracks in concrete, asphalt and other substrates throughout the construction industry. These flexible polymer materials prevent water, chemicals and debris from causing further damage across a variety of structures from roads to buildings and bridges.   At ACE Laboratories, our dedicated construction lab offers extensive testing and development services to evaluate the performance of crack bridging under real-world conditions, in line with international standards ASTM D6690, ASTM D4402, and ASTM D6297.   Read more to discover how ACE Laboratories ensures your sealants deliver optimal performance when it matters most:   ➡️ https://lnkd.in/eYsZkx9i   #BuildingMaterials #Construction #ConstructionIndustry #Polymers #Asphalt #RubberIndustry #RubberTesting #Silicone #RubberNerds Erick Sharp RUBBER HEART

Influence of the microstructure of TMT reinforcing bars on their corrosion behavior in concrete with chlorides Highlights • Corrosion studies of TMT bars in simulated pore solutions and in concrete slabs. • The outer martensite acts as anode and the core as cathode when both parts of the bar are coupled. • The core material does not meaningfully increases the corrosion rate of the outer martensite. • The usual depth of the pits is related to the microstructure of the TMT bars. • Once the pits reach the martensite-core interlayer, they tend to progress by mouth widening. There is a corrosion study carried out with TMT bars where weight losses after sea water and fresh water immersions were measured [5]. The results obtained in this research suggest that the corrosion resistance of TMT bars could be higher than that of conventional hot rolled reinforcing bars. Another corrosion study with TMT bars also reports weight losses in NaCl solutions [6]. Recent preliminary results on the effect of the galvanic coupling between TMT and conventional reinforcement steels on their corrosion performance The frequent use of TMT bars and the clear interest of corrosion performance evidence the need for obtaining more complete information about how the phases present in their microstructure can influence the development of the attack in the bars. In this work, the influence of the microstructure originated by the TMT on the corrosion behavior of reinforcing bars is analyzed in solution tests, using different electrochemical techniques. The relative corrosion resistance of the phases present in the bars, their interaction and the resulting impact on the corrosion mechanism are analyzed. There are several factors implied in the onset and development of the corrosion of steel in concrete that are impossible to replicate in solution tests Hence, bars are heavily corroded in concrete slabs for different times, and a morphological analysis of the shape of the main pits detected is carried out to verify the results obtained in solution about the influence of the microstructure in the development of the pits. For knowledge only

Concrete Material Testing is critical in determining a structures condition and its risk for deterioration. There are various methods that can be used in Concrete Material Testing. Each method provides engineers with valuable information to gain a broader understanding of your structure’s condition and how these condition’s may impact the future durability of that structure. One common method is a Carbonation Depth Test, which helps engineers determine the risk for corrosion and understand the remaining service life. 𝗕𝘂𝘁 𝘄𝗵𝗮𝘁 𝗶𝘀 𝗰𝗮𝗿𝗯𝗼𝗻𝗮𝘁𝗶𝗼𝗻 𝗱𝗲𝗽𝘁𝗵, 𝗵𝗼𝘄 𝗱𝗼𝗲𝘀 𝗶𝘁 𝗳𝗼𝗿𝗺, 𝗮𝗻𝗱 𝘄𝗵𝘆 𝘀𝗵𝗼𝘂𝗹𝗱 𝘆𝗼𝘂 𝗰𝗮𝗿𝗲 𝗮𝗯𝗼𝘂𝘁 𝘁𝗵𝗲 𝗮𝗺𝗼𝘂𝗻𝘁 𝗼𝗳 𝗰𝗮𝗿𝗯𝗼𝗻𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝘆𝗼𝘂𝗿 𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲? One of our VCS Engineering experts’ sheds light on these critical topics. Check out the video below for an in-depth explanation and discover how you can start protecting your structure today! Interested in finding out your structure’s corrosion and durability issues? Contact us today! https://lnkd.in/gXeZhWBa Our team has decades of combined experience providing reliable and accurate concrete material testing services and will help you determine which testing methods are most effective and economical for your needs. To learn more about assessing your structures corrosion risk, watch the full webinar "Concrete Condition Assessments" down below! https://lnkd.in/gxC5DHsJ #concretematerialtesting #corrosionprotection #corrosionprevention #carbonationdepth #engineering

Did you know that corrosion can significantly impact the structural performance of reinforced concrete elements?  Learn more about the structural effects of corrosion from this article by FPrimeC Solutions (https://lnkd.in/e8XSPsCS ) and how it can compromise building safety, leading to issues like reduced strength, limited ductility, and increased fatigue.  To combat this, our Portagauge® 5 ultrasonic thickness gauge can help detect and prevent corrosion-related issues by accurately measuring material thickness and identifying potential weaknesses. Ensuring the durability and integrity of your structures with our advanced technology. Drop us a message to learn more! #BuildingSafety #CorrosionAwareness #Portagauge5

ASTM A283 Grade A,B,C,D/ASME SA283 Grade A,B,C,D carbon structural steel is steel construction material, a profile, formed with a specific shape or cross section and certain standards of chemical composition and mechanical properties. Structural steel shape, size, composition, strength, storage, etcs235j2 steel grade is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.It is equal to UNI standard Fe360DK1 at the competitive price and rapid delivery time. ASTM A238 Grade A,B,C,D/ASME SA283 Grade A,B,C,D carbon structural steel is steel construction material, a profile, formed with a specific shape or cross section and certain standards of chemical composition and mechanical properties. Structural steel shape, size, composition, strength, storage, etc., is regulated in most industrialized countries.And this specification covers carbon structural steel shapes, plates, and bars of structural quality for use in riveted, bolted, or welded construction of bridges and buildings, and for general structural purposes. Heat analysis shall be used to determine the required chemical composition for carbon, manganese, phosphorus, sulfur, silicon, and copper. Tensile strength, yield strength, and elongation shall be evaluated using tension test and must conform to the required tensile properties.