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Durability Comparison of Spiral Pipes and Seamless Pipes #Spiralpipe (SSAW) VS. #Seamlesspipe (SMLS): Which pipe is more durable? Spiral pipes and seamless pipes are common pipe types. They each have their own characteristics. Which pipe is more durable needs to be compared and analyzed from many aspects. For more, visit: https://lnkd.in/gZbhz5k #ssaw #smls #weldedpipe #construction #steelstructure #bridge #durable #oilandgas #waterpipe #steelpipe

Sharing with you glimpses of Flexural Testing Day of Reinforced Concrete Beam! Here’s a Quick Look at the important specs. ✨ Key Specifications: - Concrete Mix: Ready-mixed with normal Portland Cement , fine and coarse aggregates - Target Strength: 35 MPa, verified through compressive strength tests. - Test Cylinders Dimensions: 150 mm dia, 300 mm height - Beam Dimensions: Cross-section of 200mm x 350mm, 4m span length, 3.7 m clear span. - Reinforcement: 3-10M steel bars, designed using minimum reinforcement ratio as per CSA Standards. ✨Event Highlights - Setting up concrete mix and test cylinders - Assembling the reinforced steel cage and form work - Instrumentation installation - Crack detection and marking - Deflection and strain measurements using 2 LVDTs and 6 strain gauges respectively. It was a great experience from beginning to end. 👷♀️. #STEM #Civil_engineer_in_action #UofM #Master_diaries

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

What is a half-cell potential test? Corrosion is a natural process that occurs when a structure is exposed to elements like CO2 or chloride, which can penetrate the concrete all the way to the steel reinforcement. This can have serious durability and safety consequences, which is why it is important to monitor corrosion using an accurate and trusted method. The half-cell potential test is the only corrosion monitoring technique standardized in ASTM C876 – 15: Standard Test Method for Corrosion Potentials of Uncoated Reinforcing Steel in Concrete. It is used to determine the probability of corrosion within the rebar in reinforced concrete structures. Read this blog to learn more details: https://hubs.ly/Q02lYDpQ0 #corrosion #concrete #tech

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

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

ℙ𝕠𝕤𝕥-𝟘𝟝 | ℙ𝕒𝕣𝕥-𝟘𝟚. 𝐂𝐫𝐢𝐭𝐞𝐫𝐢𝐨𝐧 𝐟𝐨𝐫 𝐒𝐚𝐭𝐢𝐬𝐟𝐚𝐜𝐭𝐨𝐫𝐲 𝐂𝐨𝐧𝐜𝐫𝐞𝐭𝐞 𝐒𝐭𝐫𝐞𝐧𝐠𝐭𝐡 (𝐀𝐂𝐈: 𝟐𝟔.𝟏𝟐.𝟑) • Strength level of an individual class of concrete shall be considered satisfactory if both of the following requirements are met: (a) The arithmetic average of any three consecutive strength tests must equal or exceed fc′. This average is calculated by taking the average of two cylinders, then adding the average of another two cylinders, and finally averaging these three averages. (b) No individual strength test should fall below fc′ by more than 500 psi when fc′ is 5000 psi or less, or by more than 0.10fc′ when fc′ is more than 5000 psi. For instance, if concrete is prepared for 3000 psi and three samples are taken with results of 3000 psi, 4000 psi, and 2490 psi, the concrete would be rejected despite having an average compressive strength of 3160 psi. This rejection indicates that while the concrete may have quality, it lacks consistency. ACI 318 allows a margin of up to 500 psi; for example, for 3000 psi concrete, no individual sample result should be less than 2500 psi, and for 4000 psi concrete, no individual sample result should be less than 3500 psi. 𝐄𝐱𝐚𝐦𝐩𝐥𝐞: Required fc’ = 20 MPa (2900 psi) Test results of 7 samples: 19, 20, 22, 23, 19, 18, 24 MPa • Mean 1 = (19 + 20 + 22) / 3 = 20.33 MPa (2944 psi) • Mean 2 = (20 + 22 + 23) / 3 = 21.67 MPa (3144 psi) • Mean 3 = (22 + 23 + 19) / 3 = 21.33 MPa (3090 psi) • Mean 4 = (23 + 19 + 18) / 3 = 20.00 MPa (2900 psi) • Mean 5 = (19 + 18 + 24) / 3 = 20.33 MPa (2944 psi) 𝐂𝐨𝐧𝐜𝐥𝐮𝐬𝐢𝐨𝐧: • Every arithmetic average of any three consecutive strength tests equals or exceeds fc’. • None of the test results fall below required fc’ by more than 3.5 MPa. • The quality of concrete is acceptable according to these criteria. Awad Ashour♻️ Izhar Ahmed Sohoo Riyaz Ahmad Bhat Ahmad Malik

Pipe Spans Pipe spans, the distances between supports in piping systems, are crucial for maintaining structural integrity and functionality. These spans are governed by several factors, notably bending stress, vertical deflection, and natural frequency, which collectively ensure the pipe operates safely and efficiently under various conditions. Bending stress arises from the weight of the pipe and its contents, as well as any external loads. If the span between supports is too long, the pipe may experience excessive bending, potentially leading to structural failure. Vertical deflection, the downward displacement of the pipe due to its own weight and contents, must also be minimized to prevent sagging, which can impair fluid flow and cause additional stress. Natural frequency refers to the pipe's tendency to resonate at specific frequencies. If the pipe's natural frequency aligns with external vibrations, such as those from nearby machinery, it can lead to destructive resonance. Hence, ensuring the pipe's natural frequency is adequately accounted for in span calculations is essential to avoid resonance issues. The allowable span for a pipe is determined by comparing the maximum span based on bending stress with that based on vertical deflection. The shorter of these two spans is used to ensure both criteria are met. By relating natural frequency to deflection limitation, engineers can further refine these calculations to ensure a safe design. Space limitations also play a role in determining pipe spans. In confined environments, the available space may restrict the placement of supports, necessitating shorter spans. Additionally, bends in the pipe can introduce stress concentrations and must be supported adequately to prevent excessive strain at the elbows. Proper drainage is another consideration. Pipes must be installed with a slight slope to facilitate drainage, particularly for systems carrying liquids. Inadequate support spacing can lead to low points where liquids can accumulate, causing corrosion and flow restrictions. In conclusion, determining the optimal pipe span involves balancing bending stress, vertical deflection, and natural frequency, while also considering space limitations, bends, and drainage needs. These factors collectively ensure a robust and efficient piping system. (Pipe Stress Analysis Sam Kannappan 2008  Assisted by AI) #pipespan #stress #naturalfrequency #drainage #slope #corrosion #bending #verticaldeflection

🧠 Curious about the maturity method? Maturity is a non-destructive approach to testing concrete that allows you to estimate the early-age and compressive strength of in-place concrete in real-time. Adopting the maturity approach in your jobsite eliminates the need for concrete cylinder break tests, allowing you to greatly optimize your schedule! Learn everything you need to know about the maturity method and how SmartRock® can help optimize your construction project in our Knowledge Center 👇 https://hubs.ly/Q029Bhl50 #MaturityMethod #KnowledgeCenter #Concrete

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