Expanded Shale, Clay and Slate Institute’s Post

Ever seen concrete move so slowly? This captivating flow is high-strength concrete (HSC) in action, a material we’re highlighting this #TechServicesTuesday for its exceptional sustainability, durability, and performance.   What makes HSC so special? The strategic mix that includes not just lower water-to-cement ratios and high-quality aggregates, but also essential supplementary materials like fly ash and slag cement. These components, byproducts of coal combustion and the steel-making process, are not only about repurposing waste. They significantly enhance the concrete's properties by reducing porosity, thus boosting durability and reducing the potential for damage from environmental exposure.   This video's thick, slow-moving concrete mix visually represents the reduced porosity and the meticulous care put into achieving a #concrete mix that sets the standard for modern construction needs.   The result? A concrete that’s capable of supporting taller, stronger, and more sustainable structures.   #HighStrengthConcrete #ConstructionInnovation #TechServicesTuesday #Sustainability

Excited to share that our recent paper titled "Improving shear behavior of rubberized concrete beams through sustainable integration of waste tire steel fibers and treated rubber" has been published in the Journal of Building Engineering! 🎉 In this work, we introduce an innovative sustainable approach to enhance the shear performance of rubberized concrete beams. By integrating recycled Waste Tire Steel Fibers and utilizing a hybrid treatment for rubber particles using fly-ash and controlled temperature, we address the challenges associated with shear reduction in traditional rubberized concrete. Thanks to the remarkable collaboration with Dr. Sayed Ahmed EL Sayed , Dr. Mahmoud Zaghlal, Dr. Yasser Alashker, and Dr. Ayman Abdo. 🙏 You can find the full paper 📖 here 👇 #Sustainability #RecycledMaterials #RubberizedConcrete #WasteToValue

🌟 Understanding Diffusion in Concrete 🌟 Concrete durability depends on understanding how materials move through it. One key transportation mechanism in concrete is diffusion, which impacts the long-term strength and performance of structures. Here’s a quick breakdown: 💧 What is Diffusion? Diffusion is the movement of ions, gases (like chloride, sulfate, CO2) through the tiny pores in concrete, driven by a concentration difference—ions move from areas of higher concentration to lower concentration until they spread evenly. 📏 Key Formula Diffusion is explained by Fick’s Law: F=D[dC/dx] F: Flux, Flow rate of ions (flow per second per unit cross-sectional area) D: Diffusion coefficient (how easily ions move) ⚠️ Why It Matters Harmful ions like chlorides can diffuse through concrete and reach steel reinforcement, causing corrosion. Understanding diffusion helps us design durable structures, especially in harsh environments like coastal areas. 📕 Insights from the Book "Transport Properties of Concrete: Measurement & Application by Peter A. Claisse" Concrete isn’t just about strength; it’s about longevity. By controlling diffusion, we ensure our structures stand the test of time. #CivilEngineering #ConcreteDurability #DiffusionInConcrete #StructureLongevity

HIGH PERFORMANCES GEOPOLYMER CONCRETE WITH HIGH CIRCULARITY INDEX, LOW ENVIRONMENTAL COST INDICATOR & LOW CARBON FOOTPRINT You may be looking for a similar concrete to your project…or to your line of production. If you like the concrete, just contact us This concrete can provide 50-80% CO2 reduction in comparison with traditional OPC-based concrete. It was made: -Without cement (0% OPC) -Without retarders -Without accelerators -With high volume of recycled materials (about 1500kg/m3) Moreover, the open time (retaining workability time) was about 150 min and this concrete could be demolded after 16-24h without any additional heating (demolding strength of 10-18 N/mm2 depending on ambient temperature). Curious or interested to know more how it was made? or you want it for your project? Just contact us. hashtag #geopolymer #concrete #beton #cement #recycle #waste #carbonfootprint #sustainability #duurzaam #lowcarbonconcrete #circularity #construction #CO2 #MKI #ECI #CI #OPC #CDW

Transforming Foamed Concrete: Enhancing Strength and Durability with Green Coir Fiber - In a significant advancement for sustainable construction materials, recent research has explored the impact of coir fiber (CF) on the performance of foamed concrete, paving the way for innovations in green concrete. Foamed concrete (FC), known for its lightweight and porous nature, has been widely used in backfilling foundations, lightweight partition structures, and impact-absorbing applications. Despite its advantages, traditional foamed concrete often has limitations such as low flexural strength, brittleness, and susceptibility to cracking. Researchers are now addressing these issues by integrating natural coir fiber, an eco-friendly alternative to synthetic fibers traditionally used in concrete. Understanding the Role of Coir Fiber in Enhancing Concrete The research focused on the flexural performance, pore characteristics, and microstructural properties of coir fiber foamed concrete (CFFC). The study analyzed the effects of varying coir fiber content, ranging from 0% to 2.5%, on the mechanical properties of foamed concrete. Click the link below to read the full story... https://lnkd.in/dUSzkeqf

Fun fact: The concrete in the Hoover Dam is still slowly getting harder—even after 90+ years! While it's no longer a major factor, the process of concrete hardening continues over time due to carbonation. Talk about lasting power! 🏞️💪 #ConcreteFacts #HooverDam #ConstructionLife #ConcreteTechnology #worldofconcrete #delugeconsulting World of Concrete

I recently completed a project on Self-Healing Concrete Using Sodium Silicate and Bacillus Megaterium, aimed at enhancing the durability and sustainability of concrete structures. The project focused on addressing the issue of cracking in concrete, which compromises structural integrity and increases maintenance costs. Using a dual-agent approach, we embedded sodium silicate in glass tubes and Bacillus megaterium in acrylic tubes within concrete beams. Sodium silicate forms a calcium-silicate-hydrate (C-S-H) gel upon activation, sealing smaller cracks, while Bacillus megaterium precipitates calcium carbonate to heal larger cracks. These mechanisms were tested through water permeability and flexural strength assessments, demonstrating significant improvements in crack sealing and strength recovery. This innovative solution reduces repair needs, extends the lifespan of concrete structures, and contributes to sustainable construction practices, making it ideal for critical infrastructure like bridges, tunnels, and water tanks. I’m excited about the potential applications of self-healing concrete and look forward to exploring more advancements in this field! #SelfHealingConcrete #CivilEngineering #Innovation #Sustainability

One of the advantages of using ALLIANCE CONCRETE SOLUTIONS is that you get it right the first time with seasoned concrete experts.

IS CARBONATION IN CONCRETE ALWAYS BAD? Not always ... We are used to hearing that concrete carbonation is very bad as it causes concrete cancer and deterioration. Yes, this is very true! But … #Concrete #carbonation occurs when using concrete mixes with higher levels of permeable voids, a higher shrinkage rate, a poorly designed #structure, and a lack of #ConcreteCuring. However, this applies to concrete elements reinforced with traditional black steel. We also need to know that carbonation increases the concrete compressive and tensile strengths thanks to the carbon atoms in the calcium carbonate. It also changes the concrete structure to close the pores making the concrete denser and less permeable. Read Full Article >>> https://lnkd.in/gs4Xk_gs Therefore, what structure are you dealing with? What do you want to achieve? Do you require concrete optimisation, assessment and repair methods, or a technical presentation to your team? Please get in touch. info@balehconsulting.com.au 02 8880 6750 Baleh Consulting - Below Ground Waterproofing #concretedurability #waterproofing #facade #engineering #

C-Concrete, one of our valued precast concrete customers, has been using Aalborg White® CEM I 52.5 R-SR over a decade. In their ongoing commitment to #sustainability and reduced carbon footprint, the company recently tested D-Carb® Low Carbon White Cement. The results of extensive Lab testing confirmed a smooth transition from Aalborg White® CEM I 52.5R to D-Carb® CEM II/A-LL, requiring no significant adjustments to the existing formulation. According to Nikolas Schack, Quality & Concrete Supervisor of C-concrete , one critical requirement—28 days compressive strength – was successfully met without compromise. D-Carb® also demonstrated excellent early age performances, matching the high standards of Aalborg White® CEM I 52.5R, which is essential for meeting tight construction schedules. Click here to watch the full VOC video: https://lnkd.in/gKD_Gvsr #DCarb #LowCarbonWhiteCement #DCarbInPractice #Precastconcrete #WhiteConcrete #AalborgWhite