Pavement Management Services

💡 Load induced defects vs non-load induced defects Load-induced defects in pavement are those that result from the repeated application of traffic loads over time. These loads can cause various types of damage, depending on factors like the pavement's material properties, construction quality, and traffic volume. On the other hand, non-load-induced defects are those that are caused by one or a combination of these factors: moisture changes, temperature fluctuations, poor joint construction, poor mix design etc. Some of these defects are caused by a combination of loading and non-loading factors. For example, fatigue cracks and corrugations are typically caused by traffic action, as well as an unstable pavement surface or base. At PMS, we use the LCMS-2 which is the latest model of 3D laser profilers to join our fleet. It automatically measures, detects, and quantifies pavement surface defects. Learn more by downloading the technical brochure: https://buff.ly/479GwAm #assetmanagement #construction #civilengineering #pavementmanagementservices

💡 Maintenance tips to protect asphalt pavement from water damage 💡 Water is a leading cause of asphalt pavement degradation, leading to cracks, potholes, and base course failures. The longer water sits on your pavement or seeps in, the worse the damage will get. Prevent water damage with proper maintenance strategies suggested in the graphics below. Also, before you repave, don’t forget to evaluate the pavement. This will enable you to decide on the optimal repair strategy and budget for maintenance tasks like seal coating, crack filling, and pothole repair. This proactive approach delays the need for repaving, saving you time and money. We recommend conducting an automated road condition survey with the LCMS-2 if you are concerned about the severity and extent of surface defects. For structural concerns, the FWD can gather detailed data to the structural integrity of underlying layers. Visit our latest blog to learn more: “Strategies to Prevent Water Damage in Asphalt Pavements” https://lnkd.in/g88ryqp8 #Maintenance #Assetmanagement #Conditionsurvey #Pavementmanagementservices

Geosynthetics are key in enhancing soil properties and performance in various construction projects. Here's are the four main mechanisms of geosynthetic reinforcement: 1️⃣ Lateral Confinement Mechanism: Geogrids provide lateral support, preventing soil spread under load. Effect: Increased shear strength and better load distribution. 2️⃣ Increasing Bearing Capacity Mechanism: Geosynthetics spread loads from structures to a wider subgrade area. Effect: Reduced settlement and higher allowable bearing pressure. 3️⃣ Tension Membrane Effect Mechanism: Geogrids develop tensile forces, creating a membrane effect. Effect: Enhanced stiffness and improved load distribution. 4️⃣ Separation Mechanism: Geotextiles prevent mixing of soil layers. Effect: Improved drainage and membrane protection. Overall: 🔹 Geogrids are ideal for reinforcement due to their high tensile strength. 🔹 Geotextiles are best for separation and filtration. With proper design and installation, engineers can leverage these mechanisms to enhance the durability and efficiency of roads, embankments, and retaining walls. Consult with our senior pavement engineers to see if geosynthetics could optimise your pavement’s performance. Click to find out more about our pavement consultancy services: https://buff.ly/3T0lwWD #Geosynthetics #CivilEngineering #Construction #Pavementmanagementservices

🎙️ New Pavement Matters Podcast Episode! Tune in to our latest episode, "How to Adapt Road and Infrastructure Assets To Account for Climate Change". In this episode, we dive deep into how asset management strategies can evolve to address natural hazards and climate change impacts on infrastructure. Hear insights on managing aging roads, coordinating maintenance for shared facilities, and setting top priorities for resilience in transportation asset management. We're thrilled to have Sue McNeil as our special guest! With an impressive background as a Visiting Professional Fellow in Civil and Environmental Engineering at UNSW and an Emeritus Professor at the University of Delaware, Sue brings unparalleled expertise in transportation asset management. Her research focuses on the impact of natural hazards and climate change on infrastructure resilience, informed by her rich experiences with the NSW Department of Main Roads and collaborations with various DOTs and the Federal Highway Administration. 🎧 Listen now and future-proof your infrastructure: https://buff.ly/3Aumrbs #AssetManagement #ClimateChange #Infrastructure #RoadMaintenance #Podcast #PavementMatters #Pavementmanagementservices

Modulus is a term used in pavement engineering to describe a material's stiffness. It's essentially a measure of how much a material deforms under a given load. The modulus of pavement materials is crucial for 3 reasons: 1️⃣ Pavement Design: It helps engineers select appropriate materials and determine layer thicknesses to support traffic loads. 2️⃣ Performance Prediction: Modulus values are used in computer models to predict pavement performance over time. 3️⃣ Material Evaluation: By comparing modulus values, engineers can assess the quality and suitability of different materials. Essentially, modulus is a fundamental property that influences the behaviour and performance of pavements under various loading conditions. But how do you test the modulus? The specific method depends on the type of modulus you want to determine (resilient modulus or elastic modulus) and the material you're testing (unbound or bound). In addition to laboratory tests, there is a field testing method to estimate modulus which we use at PMS; the device known as the Falling weight deflectometer. This device measures pavement deflection under a dynamic load, providing information about layer moduli and material damping. Click on our latest blog to learn more about modulus: https://buff.ly/3XcQ7mC #modulus #testing #pavement #assetmanagement #pavementmanagementservices

Did you know that subgrade moisture levels change over time? 🌧️ Here are the reasons why subgrade moisture levels change over the life of a sealed pavement: 1️⃣ Stabilisation: Sealed pavement reduces water infiltration and evaporation, stabilising subgrade moisture. Central areas reach equilibrium, while edges fluctuate seasonally. 2️⃣ High Rainfall Impact: In heavy rain regions, moisture levels are influenced by lateral infiltration and groundwater proximity, affecting both central and edge regions. 3️⃣ Influencing Factors: Moisture changes depend on rainfall, temperature, water table levels, shoulder drying, and soil type. Sand responds quickly to rain; clay takes months. 4️⃣ Wetting & Drying: Wetting accelerates with ponded water and seepage, while drying delays due to surface tension. This can lead to progressive wetting, even in dry areas. Want to learn how subgrades can be stabilised? Read our case study about the reconstruction design for Briggs Road which was reconstructed with a limestabilised subgrade: https://buff.ly/3LVqP64 #CivilEngineering #Infrastructure #Pavementmanagementservices

🚧 Common Concrete Surface Distresses 🔹 Scaling and Rutting: Deterioration of the concrete surface due to weathering and traffic. 🔹 Loss of Surface Texture: Reduction in the concrete's grip, affecting road safety. 🔹 Loss of Surface Shape: Irregularities on the surface, causing discomfort and potential damage to vehicles. 🔹 Plastic Shrinkage or Pre-Hardening Cracking: Fine cracks in the concrete due to rapid drying. The choice of treatment depends on various factors, including the severity of the distress, the location, and the desired outcome. Consulting with a qualified engineer is recommended for proper assessment and treatment selection. Click here to get in touch today: https://buff.ly/3SDDLkq #ConcreteMaintenance #Assetmanagement #CivilEngineering #Pavementmanagementservices

Subgrade CBR (California Bearing Ratio) testing is essential for determining soil strength and ensuring long-lasting pavement performance. Key testing methods include in situ CBR, cone penetrometers, and deflection testing. PMS specialises in deflection testing using the Falling Weight Deflectometer (FWD) to conduct precise, non-destructive structural assessments. Learn more by reading our latest blog “Unravelling the Secrets of the Subgrade: The Importance of CBR Testing” https://buff.ly/4c9p13W #CBRTesting #FWD #Infrastructure #CivilEngineering #Maintenance #PavementManagementServices

🌧️ Coastal areas with high water tables and heavy seasonal rainfall often face challenges with soft subgrades, especially when the in situ CBR is less than 5%. Effective treatment is crucial to avoid construction delays and ensure proper compaction of layers. Suggested treatments can be found in the graphic below. Ensuring stable subgrades leads to more durable and reliable pavements. Learn more about treatment measures for soft subgrades in our latest blog “Treatment Measures for Soft Subgrades”: https://buff.ly/4du6TDv #Construction #PavementEngineering #SoftSubgrades #Infrastructure #pavementmanagementservices

What are the benefits of geosynthetics? Geosynthetics are synthetic materials used in civil engineering to improve soil properties and performance. They offer various benefits: 1. Separation: Prevents soil layers from mixing, enhancing stability and drainage. 2. Reinforcement: Adds strength to soil, reducing settlement and boosting slope stability. 3. Filtration: Allows water flow while stopping soil erosion. 4. Drainage: Channels water away, reducing pressure and preventing erosion. 5. Containment: Keeps liquids or solids in place, preventing contamination. 6. Protection: Shields materials from damage, extending structure life. Choose the right geosynthetic for your project needs. Consult with our senior pavement engineers to decide whether geosynthetics are suitable for your pavement needs. Get in touch today: https://buff.ly/3yrHdYM #CivilEngineering #Geosynthetics #Pavementdesign #Infrastructure #PavementManagementServices