Tanvir Hussain PhD. Scholar

🚀⥹The Art of Sketching and Line Work.
🚀⥹Transforming Concepts into Precise Drawings!!
🚀⥹Unlocking Creativity - Impactful Architectural Drawings!!

📌❝Capture the essence of combining sketching and line work techniques within the context of BIM (Building Information Modeling) and emphasize the importance of effective design communication and visualization...❞

📌❝Provides a vast collection of customizable brushes, allowing users to create various artistic effects and styles. The app offers options to adjust brush size, opacity, flow, and blending modes, among other settings...❞

📌❝Variety of selection tools, including freehand, rectangular, and magic wand selections. These tools enable artists to isolate specific areas of their artwork for editing, copying, moving, or applying adjustments...❞
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#visualization #communication #creativity #building #design #art #bim

🚀Self-Compacting Concrete (SCC):
🚀Concrete innovations / do not require any vibration or compaction:

Self-compacting concrete (SCC) is a special type of #concrete that can be placed & #consolidated under its own weight without any #vibration effort due to its excellent #deformability, and which at the same time is #cohesive enough to be handled without #segregation or #bleeding. Self-compacting #concretes (SCC) are made with #superplasticizers & viscosity-modifying #admixtures (VMAs).
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Superplasticizers are commonly used in dry-pressed concrete to improve #workability & to enhance the #compaction of concrete for increasing #density &to improve the surface finish of the concrete product. These #admixtures should be equally effective for #cement-stabilized rammed earth #materials, which have similar #properties to those of dry-pressed concrete. Lignosulfonate, #sulfonated naphthalene condensate or sulfonated melamine or #polycarboxylate ethers are #commercially available #superplasticizers.
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Plasticizers & superplasticizers can be used to improve #workability, reduce the w/c ratio, or decrease the #cementitious content without reducing strength. If superplasticizers are used to reduce the w/c ratio, they will increase strength and durability. Air trainers are mainly used for frost resistance, but they will also reduce #segregation and bleeding. Retarders should be used with care but are effective at reducing cold joints in large pours in hot climates. Chloride-based #accelerators should not be used in reinforced concrete. If superplasticizers are used to reduce the w/c ratio, they will often increase early strength as effectively as an accelerator. Foaming agents entrain significantly more air than air trainers.
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Mix Design of Self-Compacting Concrete key points:
Coarse aggregate volume should not be more than 45-50% of the total volume. The maximum aggregate diameter should be between 10-20mm. Generally, the fine aggregate volume should be between 40% and 50% of the total mortar volume. A polycarboxylate-based chemical additive should be used. Viscosity, either a viscosity-increasing chemical additive/filler-type material should be used. Mixing water should never exceed 200 kg / m³.
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#concreteconstruction #concreteindustry #concretedesign #concretelife #qualitycontrol #materialsengineering #engineering #engineers #team #innovation #technologyinnovation #technology #structuralengineering

𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 𝗧𝘆𝗿𝗲 𝗥𝗲𝗰𝘆𝗰𝗹𝗶𝗻𝗴: 𝗔𝗱𝘃𝗮𝗻𝗰𝗶𝗻𝗴 𝗘𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁𝗮𝗹 𝗦𝘂𝘀𝘁𝗮𝗶𝗻𝗮𝗯𝗶𝗹𝗶𝘁𝘆 𝗮𝗻𝗱 𝗖𝗼𝘀𝘁-𝗘𝗳𝗳𝗲𝗰𝘁𝗶𝘃𝗲 𝗖𝗼𝗻𝘀𝘁𝗿𝘂𝗰𝘁𝗶𝗼𝗻 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀.🍀♻️

💥𝗧𝘆𝗿𝗲 𝗿𝗲𝗰𝘆𝗰𝗹𝗶𝗻𝗴 𝘁𝗿𝗮𝗻𝘀𝗳𝗼𝗿𝗺𝘀 𝘄𝗮𝘀𝘁𝗲 tyres into valuable products, such as construction boot soles, by utilizing a meticulous process. It starts with collection & sorting of discarded tyres by type & condition, followed by shredding them into smaller pieces. These pieces are then processed into fine rubber granules, which undergo thorough cleaning to eliminate impurities and meet quality standards. Cleaned granules are melted and molded into various forms, including durable construction boot soles.

💥𝗧𝗵𝗶𝘀 𝗶𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 𝗿𝗲𝗰𝘆𝗰𝗹𝗶𝗻𝗴 𝗺𝗲𝘁𝗵𝗼𝗱 highlights significant achievements in environmental sustainability by reducing tyre waste and providing cost-effective materials for the construction industry. By converting discarded tyres into durable products, the process exemplifies a sustainable approach to waste management, promoting the circular economy and minimizing the environmental impact of tyre disposal.

🚀⥹𝑺𝒕𝒊𝒄𝒌𝒊𝒏𝒈 𝑷𝒐𝒘𝒆𝒓.
🚀⥹𝑃𝑜𝑙𝑦𝑢𝑟𝑒𝑎 𝐵𝑜𝑛𝑑𝑖𝑛𝑔 𝑆𝑒𝑐𝑟𝑒𝑡𝑠 !!
🚀⥹𝑆𝑐𝑖𝑒𝑛𝑐𝑒 𝐵𝑒ℎ𝑖𝑛𝑑 𝑆𝑢𝑝𝑒𝑟𝑖𝑜𝑟 𝐴𝑑ℎ𝑒𝑠𝑖𝑜𝑛 !!

🆔⥹𝑷𝒐𝒍𝒚𝒖𝒓𝒆𝒂'𝒔 𝒂𝒃𝒊𝒍𝒊𝒕𝒚 𝒕𝒐 𝒎𝒂𝒊𝒏𝒕𝒂𝒊𝒏 𝒊𝒕𝒔 𝒂𝒅𝒉𝒆𝒔𝒊𝒐𝒏 even in extreme temperature fluctuations, high humidity, and exposure to various chemicals further underscores its remarkable adhesive properties. Whether used in harsh environmental conditions or as a protective layer for demanding industrial applications, polyurea's adhesive strength plays a pivotal role in its effectiveness as a versatile coating material.

🆔⥹𝑷𝒐𝒍𝒚𝒖𝒓𝒆𝒂 𝒄𝒐𝒂𝒕𝒊𝒏𝒈𝒔 𝒆𝒙𝒉𝒊𝒃𝒊𝒕 𝒐𝒖𝒕𝒔𝒕𝒂𝒏𝒅𝒊𝒏𝒈 𝒂𝒅𝒉𝒆𝒔𝒊𝒗𝒆 𝒔𝒕𝒓𝒆𝒏𝒈𝒕𝒉 thanks to their distinctive chemistry and rapid curing process. When applied, polyurea quickly forms robust cross-linked molecular bonds with the substrate, ensuring durable and tenacious adhesion to surfaces like concrete, metal, and wood. This exceptional adhesion makes polyurea ideal for demanding applications, including waterproofing, corrosion protection, and industrial linings.

𝗖𝗼𝗺𝗽𝗮𝗿𝗶𝘀𝗼𝗻 𝗼𝗳 𝗗𝘆𝗻𝗮𝗺𝗶𝗰 𝗖𝗼𝗺𝗽𝗮𝗰𝘁𝗶𝗼𝗻, 𝗥𝗮𝗽𝗶𝗱 𝗗𝘆𝗻𝗮𝗺𝗶𝗰 𝗖𝗼𝗺𝗽𝗮𝗰𝘁𝗶𝗼𝗻, 𝗜𝗺𝗽𝗮𝗰𝘁 𝗥𝗼𝗹𝗹𝗶𝗻𝗴, 𝗮𝗻𝗱 𝗖𝗼𝗻𝘃𝗲𝗻𝘁𝗶𝗼𝗻𝗮𝗹 𝗥𝗼𝗹𝗹𝗶𝗻𝗴 𝗧𝗲𝗰𝗵𝗻𝗶𝗾𝘂𝗲𝘀 𝗳𝗼𝗿 𝗦𝗼𝗶𝗹 𝗗𝗲𝗻𝘀𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻👷🏻‍♂️🏗️

🔎𝑫𝒚𝒏𝒂𝒎𝒊𝒄 𝑪𝒐𝒎𝒑𝒂𝒄𝒕𝒊𝒐𝒏: involves dropping heavy weights from significant heights onto the soil surface to densify loose granular soils. The repeated impact compacts the soil by rearranging the particles, reducing voids, and increasing density and stability.

🔎𝑹𝒂𝒑𝒊𝒅 𝑫𝒚𝒏𝒂𝒎𝒊𝒄 𝑪𝒐𝒎𝒑𝒂𝒄𝒕𝒊𝒐𝒏: Similar to dynamic compaction, this method uses a series of quick, repeated impacts with a lighter weight. It is suitable for shallower depths and provides quicker, yet effective, compaction for less dense soils.

🔎𝑰𝒎𝒑𝒂𝒄𝒕 𝑹𝒐𝒍𝒍𝒊𝒏𝒈: technique uses a non-cylindrical, heavy roller (often shaped like a sheep’s foot) to compact soil. The impact from the roller’s shape penetrates deeper than conventional rolling, creating a kneading action that compacts soils effectively.

🔎𝑪𝒐𝒏𝒗𝒆𝒏𝒕𝒊𝒐𝒏𝒂𝒍 𝑹𝒐𝒍𝒍𝒊𝒏𝒈: Utilizes smooth or padfoot rollers to compact soil through static weight and vibration. It is effective for surface layers and is widely used for compacting base layers in road construction and other projects, providing uniform density and smoothness.

♀𝐒𝐜𝐮𝐥𝐩𝐭𝐢𝐧𝐠 𝐑𝐨𝐚𝐝𝐬 𝐰𝐢𝐭𝐡 𝐏𝐫𝐞𝐜𝐢𝐬𝐢𝐨𝐧.
♀𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞 𝐟𝐨𝐫 𝐀𝐬𝐩𝐡𝐚𝐥𝐭 𝐏𝐚𝐯𝐞𝐦𝐞𝐧𝐭𝐬 !!
♀𝐄𝐥𝐞𝐯𝐚𝐭𝐢𝐧𝐠 𝐏𝐚𝐯𝐞𝐦𝐞𝐧𝐭 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐂𝐨𝐦𝐩𝐚𝐜𝐭𝐢𝐨𝐧 !!

⥹🆔𝗧𝗵𝗲 𝗰𝗼𝗺𝗽𝗮𝗰𝘁𝗶𝗼𝗻 𝘀𝗲𝗾𝘂𝗲𝗻𝗰𝗲 𝗳𝗼𝗿 𝗮𝘀𝗽𝗵𝗮𝗹𝘁 pavement with multiple tracks involves a systematic approach to ensure proper density and longevity. Beginning at outermost tracks, such as the outside lanes, the process progresses inwards. Initially, a breakdown roller is used to achieve preliminary compaction, focusing on thicker lifts. Subsequently, intermediate rollers are employed for further compaction as work moves towards the center of the road.

⥹🆔𝗧𝗲𝗺𝗽𝗲𝗿𝗮𝘁𝘂𝗿𝗲 𝗮𝗻𝗱 𝗱𝗲𝗻𝘀𝗶𝘁𝘆 𝗰𝗵𝗲𝗰𝗸𝘀 𝗴𝘂𝗶𝗱𝗲 the compaction efforts, aiding in adjustments to rolling patterns and frequencies. Special attention is given to edge compaction near curbs and gutters. Finish rollers provide static compaction for the final desired density and surface finish. Joint compaction ensures proper lane-to-lane connections. After confirming density and smoothness, the pavement is allowed to cool before opening to traffic, with ongoing maintenance ensuring its sustained quality and performance.
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#asphaltpaving #roadconstruction #compaction #roadworks #engineering

✵Diaphargm walls Or Slurry Walls!!
✵How Diaphramgm Walls Cosntructed!!

#diaphragm walls are commonly used in #projects such as #deep #basements, underground #parking #structures, #tunnels, deep #shafts, and #waterfront structures where #groundwater control and #structural #stability are #crucial.
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The construction of a diaphragm wall involves the following steps:

⓵Excavation: A #trench is excavated using special #equipment, such as a #hydraulic grab or #clamshell bucket, to cut through #soil or #rock. The dimensions of the trench can vary depending on the project requirements.
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⓶Slurry Support: As the trench is excavated, a #slurry #mixture is continuously pumped into the trench to support the walls and prevent cave-ins. Slurry is typically a mixture of water&bentonite clay, creates a stable suspension.
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⓷Reinforcement Placement: Steel reinforcement cages are inserted into the trench at regular intervals, usually extending to the full depth of the wall. Reinforcement cages provide structural strength to the diaphragm wall.
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⓸Concrete Placement: Once the reinforcement cages are in place, concrete is poured into the trench, displacing the slurry. The concrete fills the trench, encasing the reinforcement cages and forming a solid, continuous wall.
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⓹Tremie Method: The concrete is usually placed using the tremie method. A tremie pipe is inserted into the slurry at the bottom of the trench, and the concrete is poured through the pipe. As the concrete fills the trench, the slurry is displaced upwards and out of the trench.
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⓺Wall Panel Formation: The diaphragm wall is constructed in individual panels, with adjacent panels being constructed side by side. This results in a continuous wall without any joints between the panels, providing structural integrity and water tightness.
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⓻Curing: After the concrete is placed, it undergoes a curing period to gain strength. The curing time can vary depending on the project specifications and the type of concrete used.
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VDO Simulation Credits: www.liebherr.com
#concrete #construction #project #formation #diaphragmpump #team #bentonite #bentonitesoap #vacuumpump #vacuumtechnology #engineer #vacuumexcavation #calciumbentoniteclay #excavation #foundations

𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 𝗣𝗿𝗼𝘀𝘁𝗵𝗲𝘁𝗶𝗰: 𝗔 𝗧𝗮𝗹𝗲 𝗼𝗳 𝗢𝘃𝗲𝗿𝗰𝗼𝗺𝗶𝗻𝗴 𝗠𝗲𝗱𝗶𝗰𝗮𝗹 𝗖𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 𝗮𝗻𝗱 𝗔𝗱𝘃𝗼𝗰𝗮𝘁𝗶𝗻𝗴 𝗳𝗼𝗿 𝗔𝗰𝗰𝗲𝘀𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝘆 𝗶𝗻 𝗛𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲🎀

𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 𝗜𝗮𝗻 𝗗𝗮𝘃𝗶𝘀 𝗳𝗮𝗰𝗲𝗱 𝗮 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗶𝗻𝗴 𝘀𝗶𝘁𝘂𝗮𝘁𝗶𝗼𝗻 when his insurance coverage did not include a prosthetic hand, a necessity due to fractures caused by Multiple Myeloma. To address this, Ian took matters into his own hands and designed a mechanical prosthetic hand that operates without batteries or electricity. This innovative solution not only restored functionality to his hand but also showcased the power of ingenuity in overcoming medical challenges.

𝗗𝗲𝘀𝗽𝗶𝘁𝗲 𝘁𝗵𝗲 𝗮𝗹𝗹𝘂𝗿𝗲 𝗼𝗳 𝗿𝗼𝗯𝗼𝘁𝗶𝗰𝘀 𝗶𝗻 𝗵𝗲𝗮𝗹𝘁𝗵𝗰𝗮𝗿𝗲, Ian's experience highlights the critical need for accessibility and affordability in medical technology. While high-tech solutions hold promise, their true impact is realized when they are accessible to all, not just a privileged few. Ian's journey underscores the importance of ensuring that medical innovations are not only cutting-edge but also inclusive and affordable for all who need them.

𝗪𝗵𝗮𝘁 𝗮𝗿𝗲 𝘁𝗵𝗲 𝗸𝗲𝘆 𝗽𝗿𝗼𝗽𝗲𝗿𝘁𝗶𝗲𝘀 𝗼𝗳 𝗽𝗼𝗹𝘆𝘂𝗿𝗲𝘁𝗵𝗮𝗻𝗲 𝗳𝗼𝗮𝗺❓️𝗣𝗿𝗼𝗽𝗲𝗿𝘁𝗶𝗲𝘀 𝘀𝘂𝗰𝗵 𝗮𝘀 𝗱𝗲𝗻𝘀𝗶𝘁𝘆, 𝗵𝗮𝗿𝗱𝗻𝗲𝘀𝘀, 𝘁𝗵𝗲𝗿𝗺𝗮𝗹 𝗰𝗼𝗻𝗱𝘂𝗰𝘁𝗶𝘃𝗶𝘁𝘆, 𝗮𝗻𝗱 𝗰𝗵𝗲𝗺𝗶𝗰𝗮𝗹 𝗿𝗲𝘀𝗶𝘀𝘁𝗮𝗻𝗰𝗲 𝗮𝗿𝗲 𝗶𝗺𝗽𝗼𝗿𝘁𝗮𝗻𝘁 𝘁𝗼 𝗰𝗼𝗻𝘀𝗶𝗱𝗲𝗿 𝗳𝗼𝗿 𝘀𝗽𝗲𝗰𝗶𝗳𝗶𝗰 𝗮𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀❗

Polyurethane foam exhibits several key properties that make it a versatile material for various applications. Firstly, its density can vary widely, ranging from low-density flexible foams used in upholstery and bedding to high-density rigid foams used in insulation. This property allows for tailored solutions based on specific requirements.

Secondly, hardness or firmness is a critical property of polyurethane foam, especially in applications where comfort or support is essential. By adjusting the formulation, foam hardness can be customized to suit different needs, such as soft cushioning or rigid structural support.

Thermal conductivity is another important property of polyurethane foam, particularly in insulation applications. Its low thermal conductivity helps reduce heat transfer, making it an effective insulating material for buildings, refrigeration, and other thermal management applications.

🚀⥹ℛℯ𝒾𝓃𝒻ℴ𝓇𝒸𝒾𝓃ℊ ℰ𝓍𝒸ℯ𝓁𝓁ℯ𝓃𝒸ℯ.
🚀⥹𝑴𝒆𝒄𝒉𝒂𝒏𝒊𝒄𝒂𝒍 𝑺𝒑𝒍𝒊𝒄𝒊𝒏𝒈 𝑹𝒆𝒃𝒂𝒓 𝑪𝒐𝒖𝒑𝒍𝒆𝒓𝒔 !!
🚀⥹𝑹𝒐𝒍𝒆 𝒐𝒇 𝑹𝒆𝒃𝒂𝒓 𝑪𝒐𝒖𝒑𝒍𝒆𝒓𝒔 𝒊𝒏 𝑪𝒐𝒏𝒔𝒕𝒓𝒖𝒄𝒕𝒊𝒐𝒏 !!

⥹🆔𝑴𝒆𝒄𝒉𝒂𝒏𝒊𝒄𝒂𝒍 𝒄𝒐𝒖𝒑𝒍𝒆𝒓𝒔 𝒑𝒍𝒂𝒚 𝒂 𝒑𝒊𝒗𝒐𝒕𝒂𝒍 𝒕𝒆𝒄𝒉𝒏𝒊𝒄𝒂𝒍 𝒓𝒐𝒍𝒆 in realm of foundation rebar construction. In the context of reinforced concrete foundations, rebar serves as the backbone, reinforcing the concrete and enhancing its structural strength. Mechanical couplers, often precision-engineered cylindrical sleeves with internal threads, enable the seamless connection of two or more rebar sections. This connection is achieved through threaded ends on the rebar, which are inserted into the coupler and tightened, creating a robust mechanical joint.

⥹🆔𝑻𝒉𝒆 𝒓𝒆𝒔𝒖𝒍𝒕 𝒊𝒔 𝒂 𝒄𝒐𝒏𝒕𝒊𝒏𝒖𝒐𝒖𝒔, 𝒍𝒐𝒂𝒅-𝒃𝒆𝒂𝒓𝒊𝒏𝒈 𝒑𝒂𝒕𝒉𝒘𝒂𝒚 for forces to travel through the rebar network, bolstering the foundation's ability to withstand various loads, including vertical loads from the structure above and lateral loads due to seismic or wind forces. Moreover, the use of mechanical couplers ensures consistent rebar alignment, crucial for maintaining uniform concrete cover and preventing localized stress concentrations, ultimately enhancing the foundation's structural integrity.

✓ Switchback stairs or U-shaped stairs.
✓ Space Efficiency - Safe vertical circulation!!

❝Dog leg stairs / switchback stairs / U-shaped stairs, are a type of staircase that change direction by 180 degrees, creating a U-shape. These stairs consist of two straight flight sections with a landing in between, allowing stairs to change direction.structural ability to efficiently utilize space while providing a safe means of vertical circulation.❞

〓key aspects of their structural significance:
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〓Space Efficiency: Particularly useful when space is limited. By changing direction, they can fit into compact areas, making them suitable for narrow or constrained spaces where a straight run of stairs may not be feasible.

〓Structural Integrity: Landing in middle of dog leg stairs provides structural support & stability. acts as a transition point, distributing weight & forces evenly between two straight flights, improves overall structural integrity of staircase.

〓User Safety: Generally considered safer than straight-run stairs due to landing between flights. Landing provides a resting point, reducing risk of falls & offering a safer way to navigate stairs, especially for elderly or physically impaired individuals.

〓Aesthetics & Design: Visually appealing & add an element of architectural interest to a space. change in direction creates an attractive design feature, making them a popular choice in residential & commercial buildings.

〓Accessibility: Dog leg stairs can be designed to meet accessibility requirements by incorporating wider treads, handrails, and appropriate dimensions.

〓Flexibility: Designed with various materials, such as wood, metal, or concrete, depending on the architectural style & structural requirements. versatility allows for customization to suit different design preferences & construction needs.
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