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๐Ÿ”จ World Construction Engineering
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๐Ÿ‘‰แ‹จแˆชแˆ แˆตแ‰ดแ‰ต แˆ…แŒ แ‰ แŠขแ‰ตแ‹ฎแŒตแ‹ซ

๐Ÿ“œแˆ˜แŒแ‰ขแ‹ซ

๐Ÿ’ซแ‹จแŠขแŒแ‹ฒแˆช แˆ…แŒˆ-แˆ˜แŠ•แŒแˆตแ‰ต แ‰ แŠ แŠ•แ‰€แŒฝ 40 (3) แˆตแˆญ แ‰ แŒแˆแ… แŠฅแŠ•แ‹ฐแˆšแ‹ฐแАแŒแŒˆแ‹ แ‹จแŒˆแŒ แˆญแˆ แˆ†แА แ‹จแŠจแ‰ฐแˆ› แˆ˜แˆฌแ‰ต แ‹จแˆ˜แŠ•แŒแˆตแ‰ตแŠ“ แ‹จแˆ…แ‹แ‰ฅ แ‹ญแ‹žแ‰ณ แ‰ฅแ‰ป แАแ‹แข แˆ˜แˆฌแ‰ต แ‰ แŠ แŠ•แ‹ต แŠ แŒˆแˆญ แ‹แˆตแŒฅ แ–แˆˆแ‰ฒแŠซแ‹ŠแŠ“ แŠขแŠฎแŠ–แˆšแ‹Š แŠฅแŠ•แ‹ฒแˆแˆ แˆตแ‰ตแˆซแ‰ดแŒ‚แ‹ซแ‹ แŒ แ‰€แˆœแ‰ณ แ‹ซแˆˆแ‹ แŠฅแŒ…แŒ แ‹ˆแˆณแŠ แˆ€แ‰ฅแ‰ต แАแ‹แค แŠจแ‹šแˆ… แŒ‹แˆญ แ‰ แ‰ฐแ‹ซแ‹ซแ‹˜ แŠขแ‰ตแ‹ฎแŒตแ‹ซแ‹Šแ‹ซแŠ• แˆ˜แŠ–แˆชแ‹ซ แ‰คแ‰ต แ‹จแˆ›แŒแŠ˜แ‰ต แˆฐแ‰ฅแ‹“แ‹Š แˆ˜แ‰ฅแ‰ต แŠฅแŠ•แ‹ณแˆ‹แ‰ธแ‹แŠ“ แˆ˜แŠ•แŒแˆตแ‰ตแˆ แ‹ญแˆ…แŠ•แŠ‘ แˆ˜แ‰ฅแ‰ต แ‹จแˆ›แˆŸแˆ‹แ‰ต แŒแ‹ดแ‰ณ แŠฅแŠ•แ‹ณแˆˆแ‰ แ‰ต แ‰ แŠ แŠ•แ‰€แŒฝ 90(1) แ‰ฐแ‰€แˆแŒงแˆแข

แŠ แ‹ซแ‹ญแ‹žแˆ แˆแŒฃแŠ• แŠฅแ‹ตแŒˆแ‰ตแŠ• แ‰ แˆ›แˆจแŒ‹แŒˆแŒฅ แŠจแ แ‰ฅแˆŽ แ‹จแˆฐแˆแˆจแ‹แŠ• แ‹จแ‹œแŒŽแ‰ฝ แˆ˜แ‰ฅแ‰ต แˆ›แˆจแŒ‹แŒˆแŒฅ แ‹ญแ‰ปแˆ แ‹˜แŠ•แ‹ต แŠ แˆแˆšแ‹Žแ‰ฝ แŠจแˆ˜แŠ•แŒแˆตแ‰ต แŒ‹แˆญ แ‰ แˆšแ‹ฐแˆจแŒ แˆตแˆแˆแАแ‰ต แˆ˜แˆฌแ‰ต แ‹ˆแˆตแ‹ฐแ‹ แˆ›แˆแˆ›แ‰ต แŠฅแŠ•แ‹ฐแˆšแ‰ฝแˆ‰ แ‹ญแ‹ฐแАแŒแŒ‹แˆแข

แ‰ แ‹šแˆ… แˆ˜แˆฐแˆจแ‰ต แ‰ แ‰ฐแˆˆแ‹ญแˆ แŠจ1975 แ‹“.แˆ แŒ€แˆแˆฎ แ‹จแŠจแ‰ฐแˆ› แˆ˜แˆฌแ‰ตแŠ• แˆ›แˆตแ‰ฐแ‹ณแ‹ฐแˆญ (แˆ›แˆแˆ›แ‰ต แŒจแˆแˆฎ) แ‰ แ‹‹แАแŠแАแ‰ต แ‹จแˆ˜แŠ•แŒแˆตแ‰ต แˆตแˆแŒฃแŠ•แŠ“ แŠƒแˆ‹แŠแАแ‰ต แˆ†แŠ– แ‰ แˆแ‹ฉ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แ‰ฅแ‰ป แˆˆแŠ แˆแˆšแ‹Žแ‰ฝ แŠฅแŠ•แ‹ฒแˆแˆ แˆˆแŒแˆˆแˆฐแ‰ฆแ‰ฝ แ‹จแˆšแˆแ‰€แ‹ตแ‰ แ‰ต แˆฅแˆญแ‹“แ‰ต แ‰ฐแˆแƒแˆš แŠฅแ‹จแˆ†แА แ‹จแŠ–แˆจแ‰ แ‰ตแŠ• แˆแŠ”แ‰ณ แˆ˜แˆจแ‹ณแ‰ต แ‹ญแ‰ปแˆ‹แˆแข

แ‹ญแˆแŠ• แŠฅแŠ•แŒ… แ‰ แ‰ฐแˆˆแ‹ญแˆ แ‰ แ‹šแˆ… แ‹ˆแ‰…แ‰ต แ‰ แŠ แŒˆแˆชแ‰ฑ แ‰ แŠจแแ‰ฐแŠ› แˆแŠ”แ‰ณ แŠฅแ‹ซแ‹ฐแŒˆ แ‹จแˆ˜แŒฃแ‹แŠ• แ‹จแˆชแˆ แˆตแ‰ดแ‰ต แŒˆแ‰ แ‹ซ แ‹จแˆšแˆ˜แˆซ แ‹ˆแ‰…แ‰ฑแŠ• แ‹จแ‹‹แŒ€ แŒแˆแ…แŠ“ แ‹แˆญแ‹แˆญ แ‹จแˆ…แŒ แˆ›แ‹•แ‰€แ แ‰ แŠ แŒˆแˆชแ‰ฑ แŠฅแˆตแŠจแ‰…แˆญแ‰ฅ แŒŠแ‹œ แ‹ตแˆจแˆต แŠ แˆแАแ‰ แˆจแˆแข

แ‹ญแˆ… แ‹จแˆ…แŒ แŠญแแ‰ฐแ‰ต แ‹˜แˆญแ‰แŠ• แ‰ แ‰ฐแˆˆแ‹ญแˆ แ‹แ‹ต แ‹จแˆ†แАแ‹แŠ• แ‹จแŠจแ‰ฐแˆ› แˆ˜แˆฌแ‰ต แ‰ แŒฅแ‰‚แ‰ต แ‹ฐแˆ‹แˆŽแ‰ฝแŠ“ แ‰ฃแˆˆแˆƒแ‰ฅแ‰ถแ‰ฝ แŠฅแŒ… แŠฅแŠ•แ‹ฒแ‹ˆแ‹ตแ‰… แ‰ แˆ›แ‹ตแˆจแŒ แˆˆแ‰ฅแ‹แ‰ แ‹› แ‹ณแˆญแŒŽแ‰ต แ‹จแ‰†แ‹จ แˆตแˆˆแˆ˜แˆ†แŠ‘ แ‰ แ‰ แˆญแŠซแ‰ณ แŒฅแŠ“แ‰ถแ‰ฝ แ‹จแ‰ฐแˆจแŒ‹แŒˆแŒ  แŒ‰แ‹ณแ‹ญ แАแ‹แข

แ‹ญแˆ…แŠ•แŠ• แ‹จแˆ…แŒ แŠญแแ‰ฐแ‰ต แ‰ แˆ˜แˆจแ‹ณแ‰ต แ‹จแˆชแˆ แˆตแ‰ดแ‰ต แŒˆแ‰ แ‹ซแ‹แŠ• แ‰ แ‰ฐแˆปแˆˆ แˆตแˆญแ‹“แ‰ตแŠ“ แ‰ แ‹˜แˆ˜แŠ“แ‹Š แˆ˜แˆจแŒƒ แ‰ แ‰ฐแ‹ฐแŒˆแˆ แˆ˜แˆแŠฉ แ‰ฐแŒˆแˆ›แ‰ฝ แˆ†แŠ– แŠฅแŠ•แ‹ฒแˆ˜แˆซ แˆˆแˆ›แ‹ตแˆจแŒ แ‹ซแˆตแ‰ฝแˆ‹แˆ แ‰ฐแ‰ฅแˆŽ แ‰ฐแˆตแ‹ แ‹จแ‰ฐแŒฃแˆˆแ‰ แ‰ต แŠ แ‹‹แŒ… แ‰แŒฅแˆญ 1357/2016 แˆ†แŠ– แ€แ‹ตแ‰‹แˆแข

แ‰ แ‹šแˆ… แŠ แŒญแˆญ แ…แˆแ แ‹แˆตแŒฅแˆ แ‰ แˆ…แŒ‰ แˆตแˆˆแ‰ฐแˆธแˆแАแ‹ แˆชแˆ แˆตแ‰ดแ‰ต แˆแŠ•แАแ‰ตแฃ แ‰…แ‹ตแˆ˜-แˆแŠ”แ‰ณแ‹Žแ‰นแฃ แ‹จแŠ แˆแˆšแ‹Žแ‰ฝ แŒแ‹ดแ‰ณแฃ แ‹จแŒแ‰ฅแ‹ญแ‰ต แˆ‚แ‹ฐแ‰ฑแŠ“ แˆ˜แˆฐแˆ แАแŒฅแ‰ฆแ‰ฝ แ‰ฐแ‹ณแˆฐแ‹‹แˆแข

๐Ÿšงแ‹จแˆชแˆ แˆตแ‰ดแ‰ต แˆแŠ•แАแ‰ต

๐Ÿทแˆ™แˆ‰ แˆˆแˆ›แŠ•แ‰ แ‰ฅ แŠจแ‰ณแ‰ฝ แ‰ฃแˆˆแ‹ Instant View แ‹ญแŠ•แŠฉแ‰ต ๐Ÿ‘‡

@etconp

https://telegra.ph/%E1%8B%A8%E1%88%AA%E1%88%8D-%E1%88%B5%E1%89%B4%E1%89%B5-%E1%88%85%E1%8C%8D-%E1%89%A0%E1%8A%A2%E1%89%B5%E1%8B%AE%E1%8C%B5%E1%8B%AB-07-14
โค6๐Ÿ‘1
๐Ÿ‘‰Composition and Classification of Soil

๐ŸทSoil is a naturally occurring material composed of mineral particles, organic matter, water, and air.

โบThe composition of soil influences its strength, permeability, and load-bearing capacity.

โญ๏ธBased on grain size, soil is classified into the following categories:

๐ŸšงCoarse-Grained Soilsโ€”Include gravel and sand. 

โบcharacterized by high permeability and good drainage properties.

๐ŸšงFine-Grained Soilsโ€”Include silt and clay.exhibits low permeability and high plasticity.

๐ŸšงOrganic Soilsโ€”Contain decomposed plant material and organic matter.

๐Ÿ“œgenerally unsuitable for construction due to poor strength Soil classification systems, such as the.

@etconp
โค11
แ‰ณแˆแˆซแ‰ต  แ•แˆŒแ‰ต แŠฅแŠ“ แŒ„แ‰ฆแˆแ‰ต แŠ แ‰…แˆซแ‰ข

๐Ÿ“Œแ•แˆŒแ‰ตแŠ“ แŒ„แ‰ฆแˆแ‰ต แ‰ แˆแˆˆแŒ‰แ‰ต แŠ แ‹ญแАแ‰ต แ‹จแ‰ฐแ‹˜แŒ‹แŒ€ แŠ แˆˆแŠ•

๐Ÿ“แŠขแ‰ตแ‹ฎแŒตแ‹ซ แ‹‰แˆตแŒฅ แ‹จแ‰ตแˆ แŠฅแŠ•แˆแŠญแˆŽแ‰ณแˆˆแŠ•


0904040477
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โค5๐Ÿ™1
๐Ÿ‘‰Design Principles of Timber Structures

๐ŸทThe design of timber structures requires careful consideration of material properties, structural requirements, and environmental factors.

โญ๏ธKey principles include:

๐ŸšงMaterial Selection: Choosing the right type of timber is essential. Hardwood species like oak and teak are known for their durability, while softwoods like pine and spruce are easier to work with and more affordable.

๐ŸšงStructural Systems: Timber structures can be classified into various systems, such as post-and-beam, trusses, or frame construction.
โบEach system has its advantages and is suited to different applications.

๐ŸšงMoisture Management: Timber is susceptible to moisture damage, so proper design includes measures to protect against water infiltration, such as coatings, drainage systems, and ventilation.

๐ŸšงFire Resistance: Contrary to popular belief, timber can perform well in fire due to its predictable charring rate, which creates an insulating layer that protects the core.

๐ŸšงConnection Techniques: Modern timber structures often use advanced connection methods, such as metal fasteners or adhesives, alongside traditional joinery techniques.

@etconp
๐Ÿ‘5
๐Ÿ‘‰Advantages of Timber Structures

๐Ÿ’ซTimber offers several unique advantages that make it a preferred material in construction:

๐ŸšงSustainability: Timber is a renewable resource, provided it is sourced responsibly from managed forests. The carbon sequestration properties of trees mean that using timber in construction helps offset greenhouse gas emissions.

๐ŸšงStrength-to-Weight Ratio: Timber is incredibly strong for its weight, making it suitable for both small-scale residential structures and larger projects like bridges.

๐ŸšงThermal Performance: Timber is an excellent insulator, contributing to energy-efficient buildings by reducing heating and cooling demands.

๐ŸšงAesthetics: The natural grain and texture of timber bring warmth and character to buildings, creating environments that feel inviting and connected to nature.

๐ŸšงVersatility: Timber can be used in various forms, such as solid wood, engineered wood (like cross-laminated timber or CLT), or composite materials, offering flexibility in design and construction.

@etconp
โค8๐Ÿ‘3
๐Ÿ‘‰Project scheduling๐Ÿ“…

๐ŸšงIn construction, a well-planned schedule is the backbone of every successful project. Without a solid plan, delays pile up, costs spiral out of control, and crews waste valuable time waiting for the next step. 

โบProject scheduling isnโ€™t just about dates on a calendarโ€”itโ€™s about keeping materials, equipment, and manpower moving like a well-oiled machine.

โบWhether youโ€™re managing a high-rise, a bridge, or a residential development, a solid schedule ensures that every phase flows seamlessly from start to finish.

๐Ÿ“Œ What is Project Scheduling?
In construction, every project has a sequence of steps that must be followed to keep things on track.

โบProject scheduling is the process of organizing those steps into a clear timeline, ensuring that: 

โœ… Work progresses logically and efficiently 
โœ… Crews, subcontractors, and materials arrive at the right time
โœ… Delays are minimized, and risks are reduced 
โœ… The project stays within budget 

โบA strong schedule is like a roadmapโ€”it tells your team where they need to be, what needs to happen next, and what could cause bottlenecks if not managed properly. 

๐Ÿ“Š Gantt Charts โ€“ The Blueprint for Time Management

๐Ÿ’ซWhat is a Gantt Chart?

โบA Gantt chart is one of the most widely used tools in construction scheduling.

โบThink of it as a visual roadmap that lays out the entire project timeline in a bar chart format.

โบEach task has a start and end date, making it easy to see whatโ€™s happening and when. 

๐Ÿ”น Key Elements of a Gantt Chart:

๐Ÿ“Œ Task List โ€“ All project activities (e.g., site clearance, bulk excavation,foundation concrete, electrical, roofing) 
๐Ÿ“Œ Bars โ€“ The duration of each task 
๐Ÿ“Œ Dependencies โ€“ How tasks are linked (e.g., you canโ€™t pour concrete before formwork is done) 
๐Ÿ“Œ Milestones โ€“ Major project checkpoints (e.g., completion of structural work) 

๐Ÿ”น Why Construction Teams Love Gantt Charts:

โœ… Clear, at-a-glance scheduling for project managers and site supervisors 
โœ… Tracks overlapping activitiesโ€”helps manage multiple subcontractors working at once 
โœ… Quickly highlights delays so adjustments can be made in real-time 

๐Ÿ”— Critical Path Method (CPM)

๐Ÿ“ What is CPM?

The Critical Path Method (CPM) is a powerful scheduling technique used in construction to identify the longest sequence of dependent tasks that determine the projectโ€™s overall duration. 

๐Ÿ’ก How It Works

1๏ธโƒฃ Break the project into tasks and subtasks
2๏ธโƒฃ Assign estimated durations to each task 
3๏ธโƒฃ Identify dependencies (which tasks must happen before others can begin) 
4๏ธโƒฃ Calculate the longest path of tasks that, if delayed, will extend the entire project timeline.

๐Ÿ“Œ Why is CPM Critical in Construction?

โบHelps prevent costly delays by focusing on the most time-sensitive tasks 
โบPrioritizes work that directly affects project completion 
โบAllows managers to adjust schedules dynamically when unexpected issues arise.

@etconp
โค15๐Ÿ‘4
Ethio Construction Engineering
๐Ÿ‘‰Project scheduling๐Ÿ“… ๐ŸšงIn construction, a well-planned schedule is the backbone of every successful project. Without a solid plan, delays pile up, costs spiral out of control, and crews waste valuable time waiting for the next step.  โบProject schedulingโ€ฆ
๐Ÿ‘‰Program Evaluation and Review Technique (PERT)

๐Ÿ” What is PERT?

โบThe Program Evaluation and Review Technique (PERT) is a project scheduling method that helps managers handle uncertainty in estimating task durations.

โบIt was developed by the U.S. Navy in the 1950s for the Polaris submarine project and has since been widely adopted in construction and engineering.

โ–ถ๏ธUnlike the Critical Path Method (CPM), which assumes known activity durations, PERT is probabilistic,meaning it deals with variability in how long tasks may take.

๐Ÿง  How It Works

โบPERT uses three time estimates for each activity:

๐—ข๐—ฝ๐˜๐—ถ๐—บ๐—ถ๐˜€๐˜๐—ถ๐—ฐ(๐—ข)-The minimum possible time to complete a task (if everything goes perfectly),Best-case scenario.
๐— ๐—ผ๐˜€๐˜ ๐—น๐—ถ๐—ธ๐—ฒ๐—น๐˜†(๐— )-The normal time you expect the task to take,Based on experience.
๐—ฃ๐—ฒ๐˜€๐˜€๐—ถ๐—บ๐—ถ๐˜€๐˜๐—ถ๐—ฐ (๐—ฃ)-The maximum time the task might take (if things go wrong),Worst-case scenario.

๐Ÿ”Ž Why Use PERT in Construction?

โบConstruction projects often face uncertaintiesโ€”weather, material delays, labor shortages, etc.

โบPERT helps: Account for risks in time estimation Provide more accurate schedules Improve planning and decision-making

๐Ÿ‘‰Network Diagramming in Construction Projects

โบA Network Diagram is a graphical representation of a projectโ€™s activities and their logical relationships. It shows what comes first, what follows, and what tasks depend on others.

๐ŸทThere are two main types of network diagrams:

๐Ÿงฉ A. Activity-on-Arrow (AoA)
Also called the Arrow Diagramming Method (ADM).

โœ… Features:

โบArrows represent activities Nodes (circles or events) represent milestones or the start/end of activities.

โบActivities are defined by start and end points Often uses dummy activities (dashed arrows with zero duration) to show dependencies that cannot be represented otherwise.

๐Ÿ”ฐDummy Activity:

โบA placeholder arrow used for logic, not actual work. It helps maintain proper task relationships when two activities depend on a common predecessor.

๐Ÿ“‰ Limitations:

โบCannot easily represent lead and lag times
Less flexible than AoN for modern scheduling tools.

๐Ÿงฉ B. Activity-on-Node (AoN)
Also called the Precedence Diagramming Method (PDM),the most widely used in modern software like Primavera P6 and Microsoft Project.

โœ… Features:

โบNodes (boxes) represent activities Arrows show dependencies or logic between them Allows for various dependency types:
Finish-to-Start (FS): Task B starts after Task A finishes
Start-to-Start (SS): Task B starts when Task A starts
Finish-to-Finish (FF): Task B finishes when Task A finishes
Start-to-Finish (SF): Rareโ€”Task B must start before Task A finishes.

๐Ÿงฉ C. Precedence Diagram

โบThis is simply the visual representation of an Activity-on-Node (AoN) method. It maps out:

โบAll project activities
Their logical sequences
Critical paths and floats/slacks

๐Ÿ“Each box (node) contains:Activity name,Duration,Early/latest start and finish dates &Total float

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โค10๐Ÿ‘5๐Ÿ˜ฑ1๐Ÿ™1
๐Ÿ‘‰Slabโ€“Column Connections with Different Concrete Classes

๐Ÿ’ซIn reinforced concrete construction, it is common to encounter situations where the column is designed with a higher concrete grade than the slab.

โบThis often happens because columns, being primary vertical load-carrying elements, require greater strength and durability compared to slabs that distribute loads horizontally.

โบWhile this design approach is structurally sound, special attention must be given at the slabโ€“column connection, to ensure safe load transfer and prevent potential issues like punching shear failure, bond slip, or cracking at the interface.

โ–ถ๏ธWhen different concrete grades are used, standard practice dictates that the weaker (lower-grade) concrete governs the strength checks at the joint. That means, for critical verifications such as punching shear,shear friction, and reinforcement anchorage, engineers must base their calculations on the slabโ€™s lower concrete strength, even though the column might be made of a superior class. 

โ–ถ๏ธThis conservative approach ensures that the system remains safe even under unfavorable conditions, but it can lead to heavier reinforcement requirements or thicker slab sections.

โ–ถ๏ธOne practical and efficient solution to improve performance around the connection is to extend the columnโ€™s higher-grade concrete locally into the slab region.

โ–ถ๏ธInstead of limiting the high-strength concrete to the column itself, a zone around the column (typically 0.5 to 1.0 meters at an angle of 45ยฐ) can also be cast using the same high-strength mix.

โบThis technique effectively creates a "stronger concrete patch" within the slab, dramatically improving punching shear capacity and bond performance without the need for excessively dense reinforcement.

โบCodes like ACI states this as "if the difference in grades of concrete between the column and slab is more than 40%, the higher grade concrete shall be placed around the column perimeter and also shall be placed first before the lower grade slab concrete, shall be plastic while the lower grade concrete is placed and adequately vibrated to ensure the concretes are well integrated".

๐Ÿ’ซMoreover, to enhance the slabโ€“column joint performance regardless of the concrete grade strategy, best practices should still be followed

โœ…Roughening the column top surface before slab casting to ensure mechanical interlock.
โœ…Providing additional punching shear reinforcement required.
โœ…Considering drop panels or local slab thickening around the column when necessary.

โบUltimately, the goal is to ensure that the transition between different structural elements remains strong, durable, and safe throughout the life of the building.

@etconp
๐Ÿ‘9โค3๐Ÿ‘1
แ‰ณแˆแˆซแ‰ต  แ•แˆŒแ‰ต แŠฅแŠ“ แŒ„แ‰ฆแˆแ‰ต แŠ แ‰…แˆซแ‰ข

๐Ÿ“Œแ•แˆŒแ‰ตแŠ“ แŒ„แ‰ฆแˆแ‰ต แ‰ แˆแˆˆแŒ‰แ‰ต แŠ แ‹ญแАแ‰ต แ‹จแ‰ฐแ‹˜แŒ‹แŒ€ แŠ แˆˆแŠ•

โ™ง แˆแˆ‰แŠ• แ‰ แŠ แŠ•แ‹ต แ‰ฆแ‰ณ แˆˆแˆแˆ‰แˆ แ‰…แˆญแ‰ฅ

๐Ÿ“แŠขแ‰ตแ‹ฎแŒตแ‹ซ แ‹‰แˆตแŒฅ แ‹จแ‰ตแˆ แŠฅแŠ•แˆแŠญแˆŽแ‰ณแˆˆแŠ•

โ™ง แ‹ญแ‹ฐแ‹แˆ‰แˆแŠ• แ‹ซแˆ›แŠญแˆฉแŠ•

0904040477
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๐Ÿ‘3โค2
๐Ÿ‘‰แŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ฑ แ‹จแŠฎแŠ•แˆตแ‰ตแˆซแŠญแˆฝแŠ• แˆแˆ…แŠ•แ‹ตแˆตแŠ“แŠ“ แŠขแŠ•แŒ…แАแˆชแŠ•แŒ แˆแ‹•แ‰€แ‰ต แˆ›แ‹•แŠจแˆ แ‹จ3แŠ›แ‹แŠ• แˆแ‹•แˆซแ แŒแŠ•แ‰ฃแ‰ณ แ‹แˆ แˆตแˆแˆแАแ‰ต แ‰ฐแˆแˆซแˆจแˆ˜

๐Ÿทแ‹จแŠฎแŠ•แˆตแ‰ตแˆซแŠญแˆฝแŠ• แˆ›แŠ”แŒ…แˆ˜แŠ•แ‰ต แŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ต แ‰ แŠฆแˆฎแˆšแ‹ซ แŠญแˆแˆ แ‰ แˆฐแŠ•แ‹ณแ‹ แŠจแ‰ฐแˆ› แ‹จแˆšแ‹ซแˆตแŒˆแАแ‰ฃแ‹แŠ• แ‹จแˆแ‰€แ‰ต แˆ›แ‹•แŠจแˆ แ‹จ3แŠ›แ‹ แˆแ‹•แˆซแ แŒแŠ•แ‰ฃแ‰ณ แ‹แˆ แŠจแˆ€แŠญแŠฎแŠ• แŠขแŠ•แŒ…แАแˆชแŠ•แŒ แŒ‹แˆญ แ‰ แŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ต แˆ˜แˆฐแ‰ฅแˆฐแ‰ขแ‹ซ แŠ แ‹ณแˆซแˆฝ แ‰ฐแˆแˆซแˆชแˆŸแˆแกแก

แ‰ แ‹แˆ แŠแˆญแˆ›แ‹แˆ แˆˆแˆแ‹•แ‰€แ‰ต แˆ›แ‹•แŠจแˆ‰ แˆ แˆซแ‰ฐแŠžแ‰ฝแŠ“ แˆฐแˆแŒฃแŠžแ‰ฝ แˆ˜แŠ–แˆชแ‹ซ แ‹จแˆšแ‹แˆ แˆแˆˆแ‰ต แ‰ฃแˆˆ 5 แŽแ‰… แˆ…แŠ•แŒป แ‰ 925,828, 095 แ‰ฅแˆญ แ‰ แˆฅแˆซ แ‰ฐแ‰‹แˆซแŒฉ แ‹จแˆšแŒˆแАแ‰ฃ แ‹ญแˆ†แŠ“แˆแกแก

แ‰ แŠแˆญแˆ› แˆฅแА-แˆฅแˆญแ‹“แ‰ฑ แˆ‹แ‹ญ แ‹จแ‰ฐแŒˆแŠ™แ‰ต แ‹จแŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ฑ แ‹‹แŠ“ แ‹ณแ‹ญแˆฌแŠญแ‰ฐแˆญ แŠข/แˆญ แ‰ณแˆแˆซแ‰ต แˆ™แˆ‰ แŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ฑ แŠจ2006 แ‰ แŒ€แ‰ต แ‹“แˆ˜แ‰ต แŒ€แˆแˆฎ แˆˆแˆ˜แŠ•แŒแˆฅแ‰ณแ‹ŠแŠ“ แˆ˜แŠ•แŒแˆฅแ‰ณแ‹Š แˆ‹แˆแˆ†แŠ‘ แ‹จแ‹˜แˆญแ‰ แ‰ฐแ‹‹แŠ“แ‹ฎแ‰ฝ แ‰ฐแŒแ‰ฃแˆญแŠ• แˆ˜แˆ แˆจแ‰ต แ‹ซแ‹ฐแˆจแŒˆ แ‹จแŠ แ‰…แˆ แŒแŠ•แ‰ฃแ‰ณ แˆตแˆแŒ แŠ“ แŠฅแŠ•แ‹ตแˆแˆ แ‹จแ‹˜แˆญแ‰ แ‰ฐแ‹‹แŠ“แ‹ฎแ‰ฝแŠ• แ‰ แ‹“แˆˆแˆ แŠ แ‰€แ แ‹ฐแˆจแŒƒ แ‰ฐแ‹ˆแ‹ณแ‹ณแˆชแŠ“ แ‹แŒคแ‰ณแˆ› แŠฅแŠ•แ‹ตแˆ†แŠ‘ แŠฅแŠ“ แ‹จแˆšแˆ˜แˆฉแ‰ตแŠ• แ‹จแŒแŠ•แ‰ฃแ‰ณ แ•แˆฎแŒ€แŠญแ‰ถแ‰ฝแŠ• แ‹แŒคแ‰ณแˆ›แАแ‰ณแ‰ธแ‹แŠ• แ‰ฃแˆจแŒ‹แŒˆแŒ  แˆ˜แˆแŠฉ แŠฅแŠ•แ‹ตแ‹ซแŠจแŠ“แ‹แŠ‘ แ‹จแˆšแ‹ซแŒแ‹ แ‹จแ•แˆฎแŒ€แŠญแ‰ต แˆ›แŠ”แŒ…แˆ˜แŠ•แ‰ต แ•แˆฎแˆแˆฝแŠ“แˆ แˆตแˆแŒ แŠ“ แŠ แˆœแˆชแŠซแŠ• แˆ€แŒˆแˆญ แŠจแˆšแŒˆแŠ˜แ‹ แ‹จแ•แˆฎแŒ€แŠญแ‰ต แˆ›แŠ”แŒ…แˆ˜แŠ•แ‰ต แŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ต แŒ‹แˆญ แ‰ แˆ˜แ‰ฐแ‰ฃแ‰ แˆญ แŠฅแ‹จแˆฐแŒ  แŠฅแŠ•แ‹ฐแˆšแŒˆแŠ แ‰ฐแŠ“แŒแˆฏแˆแกแก

แ‹จแˆ€แŠญแŠฎแŠ• แŠขแŠ•แŒ…แАแˆชแŠ•แŒ แ‰ฃแˆˆแ‰คแ‰ต แŠ แ‰ถ แŠ แˆฐแŒแ‹ต แŠฉแˆซแ‰ฃแ‰ธแ‹ แ‰ แ‰ แŠฉแˆ‹แ‰ธแ‹ แŒจแˆจแ‰ณแ‹ แŒแˆแ…แŠ“ แŠ แˆณแ‰ณแŠ แˆ˜แˆ†แŠ‘แŠ• แŠ แˆ˜แˆตแŒแАแ‹แฃ แŠจแŠขแŠ•แˆตแ‰ฒแ‰ตแ‹ฉแ‰ฑ แŒ‹แˆญ แ‰ แˆ˜แˆฅแˆซแ‰ณแ‰ฝแŠ• แŠ แ‰…แˆ แŠฅแŠ•แ‹ตแŠ•แˆแŒฅแˆญ แ‹ซแ‹ฐแˆญแŒˆแŠ“แˆ แ‰ฅแˆˆแ‹‹แˆแกแก

แŒแŠ•แ‰ฃแ‰ณแ‹แŠ•แˆ แ‰ แ‰ฐแ‰€แˆ˜แŒ แ‹ แŒŠแ‹œ แˆ˜แˆ แˆจแ‰ต แŠ แŒ แŠ“แ‰† แŠฅแŠ•แ‹ฐแˆšแ‹ซแˆฐแˆจแŠญแ‰ก แ‰ฐแŠ“แŒแˆจแ‹‹แˆแกแก

@etconp
โค10๐Ÿ‘3
๐Ÿ‘‰Theory: What is Cement?

โญ๏ธCement is a binding material used in construction that hardens and sets when mixed with water.

๐Ÿ’ซThe most common type is Ordinary Portland Cement (OPC).

๐Ÿงฑ Raw Materials:
Limestone (CaCOโ‚ƒ) โ€“ source of calcium

Clay/Shale โ€“ source of silica, alumina, and iron

Other Additives โ€“ bauxite, iron ore, etc.

๐Ÿ”ฅ The Process:
โœ๏ธ๐ŸพCrushing & Mixing:
Raw materials are crushed and blended into a fine powder (raw meal).

โœ๏ธ๐ŸพHeating in Kiln (1450ยฐC):
The raw meal is fed into a rotary kiln, where it goes through:

โœ๏ธ๐ŸพCalcination (COโ‚‚ release from limestone)

Clinker Formation (new compounds like C3S, C2S, C3A, C4AF)

โœ๏ธ๐ŸพCooling & Grinding:
The clinker is cooled and ground with gypsum (to control setting time) to form cement.

๐Ÿ—๏ธ Practice: On-Site Impact
The fineness of grinding affects strength and setting time.

Proper cement storage avoids moisture contamination.

Quality cement = stronger concrete, fewer cracks, longer durability.

๐Ÿ“Œ Pro Tip: Always check the manufacture date and grade (33/43/53) before using cement on site.

@etconp
โค19
๐Ÿ‘‰What Is Concrete Mix Design?

๐Ÿ’ซConcrete mix design is the process of selecting suitable ingredients (cement, sand, aggregates, water, admixtures) and determining their relative proportions to produce concrete with the required strength, workability, and durability.

๐Ÿ‘ทโ€โ™‚๏ธ The key factors include:

Grade of Concrete: e.g., M20, M25, M30 (M = Mix, number = compressive strength in MPa)

Water-Cement Ratio (w/c): Lower ratio = higher strength

Workability: How easily the concrete can be mixed, placed, and finished (measured using a slump test)

Durability: Resistance to weather, chemical attack, etc.

๐Ÿงฑ Practice: Site Application
๐Ÿ› ๏ธ Example Mix: M20 (1:1.5:3)
1 part cement

1.5 parts sand (fine aggregate)

3 parts coarse aggregate

Water ~0.45โ€“0.6 times the cement weight

๐Ÿ“Œ Common Site Mistakes:

Guessing mix ratios ("eye batching")

Adding extra water to improve workability

Poor aggregate grading

Ignoring curing after placing

๐Ÿ“ Pro Tip: Always do a trial mix before finalizing, and use cube tests (7-day & 28-day) to confirm strength.

๐Ÿ”Ž Real-Life Impact:
โœ… A well-designed mix reduces cracks, improves longevity, and ensures safe load-bearing.
โŒ A poor mix leads to segregation, low strength, and structural failure.

@etconp
โค16๐Ÿ‘5๐Ÿ‘1
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โค3
How to Minimize Concrete Shrinkage: Practical Guidelines for Engineers


Minimizing concrete shrinkage is crucial for reducing cracking, improving durability, and enhancing structural performance. Key shrinkage occurs due to water loss (drying shrinkage) and chemical reactions within the mix (autogenous shrinkage). Hereโ€™s how to effectively limit shrinkage:
1.     Mix Design Adjustments
- Lower Water-Cement Ratio: Use only the necessary water for workability to limit shrinkage.
- Supplementary Cementitious Materials: Incorporate fly ash, slag, or silica fume to reduce heat and shrinkage.
- Shrinkage-Reducing Admixtures (SRAs) & Colloidal Silica: Additives that help control moisture loss and capillary tension.
2.     Aggregate Optimization
- Increase Aggregate Content: More aggregate means less paste to shrink.
- Use Well-Graded & Coarse Aggregates: Improves packing density and naturally restrains shrinkage.
3.     Curing Practices
- Start Early, Maintain Moist Curing: Begin promptly and keep concrete moist for at least 7 days.
- Avoid Rapid Drying: Control site conditions to minimize surface moisture loss.
4.     Special Cement Types
- Expansive/Low-Heat Cement: Offset or reduce early-age and thermal shrinkage.
5.     Construction Practices
- Limit Joint Spacing & Use Reinforcement: Proper jointing and fibers help control and distribute cracks.
- Control Placement Temperature & Avoid Over-Finishing: Prevent excessive surface paste and additional shrinkage risk

Via Yonatan Tadesse (PMP ยฎ๏ธ)

@etconp
โค13๐Ÿ”ฅ4
๐Ÿ’ซแ‰ แŠ แˆ›แŠซแˆชแАแ‰ต แˆ™แ‹ซ แˆˆแˆšแˆฐแˆฉ แ‰ฃแˆˆแˆ™แ‹ซแ‹Žแ‰ฝ แ‹จแˆšแŒ แ‰…แˆ แˆ˜แˆจแŒƒแข

โญ๏ธแŒแ‰ฅแˆญ แŠจแ‹แ‹ฎแ‰ฝ แ‹จแˆšแ‹ญแ‹Ÿแ‰ธแ‹ แ‹จแˆ’แˆณแ‰ฅ แˆฐแАแ‹ถแ‰ฝแข

โบแŒแ‰ฅแˆญ แŠจแ‹แ‹ฎแ‰ฝ แ‹จแˆ‚แˆณแ‰ฅ แˆ˜แ‹แŒˆแ‰ฅ แŠฅแŠ•แ‹ฒแ‹ญแ‹™ แ‹จแˆšแ‹ฐแˆจแŒแ‰ แ‰ต แ‹“แˆ‹แˆ› แ‰ แ‰ตแŠญแŠญแˆˆแŠ› แˆ˜แˆจแŒƒ แˆ‹แ‹ญ แ‰ แˆ˜แˆ˜แˆตแˆจแ‰ต แŒแ‰ฅแˆญ แˆˆแˆ›แˆตแŠจแˆแˆ แŠฅแŠ“ แ‹จแ‰ณแŠญแˆต แ‰ฐแˆ˜แˆ‹แˆฝแŠ• แˆˆแˆ˜แแ‰€แ‹ต แАแ‹แกแก

โ‡๏ธแˆตแˆˆแˆ†แАแˆ แŒแ‰ฅแˆญ แŠจแ‹แ‹ฎแ‰ฝ แ‹จแˆšแŠจแ‰ฐแˆ‰แ‰ตแŠ• แ‹จแˆ‚แˆณแ‰ฅ แˆฐแАแ‹ถแ‰ฝ แˆ˜แ‹ซแ‹ แ‹ญแŠ–แˆญแ‰ฃแ‰ธแ‹‹แˆ:-

๐Ÿ‘‰ แŠจแŠ•แŒแ‹ต แˆตแˆซแ‹ แŒ‹แˆญ แ‹จแ‰ฐแŒˆแŠ“แŠ˜ แ‰ แ‹จแ‰€แŠ‘ แ‹จแˆšแ‹ซแŒˆแŠ˜แ‹แŠ• แˆ›แŠ•แŠ›แ‹แˆ แŒˆแ‰ข แŠฅแŠ“ แ‹ˆแŒช แ‹จแˆšแ‹ซแˆณแ‹ญ แˆฐแАแ‹ต
๐Ÿ‘‰ แŠ แˆˆแˆ แŠ แ‰€แ แ‹จแ‹แ‹ญแŠ“แŠ•แˆต แˆชแ–แˆญแ‰ต แŠ แ‰€แˆซแˆจแ‰ฅแŠ• แ‹จแ‰ฐแŠจแ‰ฐแˆˆ แ‹จแˆ‚แˆณแ‰ฅ แˆฐแАแ‹ต (GAAP/IFRS/ Authorized tax format)
๐Ÿ‘‰ แˆ…แŒ‹แ‹Š แ‹จแŠฅแŒ… แ‰ แŠฅแŒ… แˆฝแ‹ซแŒญ แ‹ฐแˆจแˆฐแŠแฃ
๐Ÿ‘‰ แ‹จแ‹ฑแ‰ค แˆฝแ‹ซแŒญ แ‹ฐแˆจแˆฐแŠแฃ
๐Ÿ‘‰ แ‹จแŒˆแŠ•แ‹˜แ‰ฅ แˆ˜แ‰€แ‰ แ‹ซ แ‹ฐแˆจแˆฐแŠแฃ
๐Ÿ‘‰ แ‹จแ‹ดแ‰ขแ‰ต/แŠญแˆฌแ‹ตแ‰ต แˆฐแАแ‹ตแฃ
๐Ÿ‘‰ แ‰ แŠคแˆŒแŠญแ‰ตแˆฎแŠ•แŠญ แ‹จแˆ˜แˆจแŒƒ แˆ›แŠจแˆ˜แ‰ป แˆ˜แˆณแˆชแ‹ซ แ‹แˆตแŒฅ แ‰ฐแŠจแˆ›แ‰ฝแ‰ถ แ‹จแ‰ฐแ‹ซแ‹˜แฃ
๐Ÿ‘‰ แŠจแ‰ฐแŠจแ‹แ‹ญ แˆ’แˆณแ‰ฅ แˆ‹แ‹ญ แ‰ฐแ‰€แŠ“แˆฝ แ‹จแ‰ฐแ‹ฐแˆจแŒˆแ‹แŠ• WHT แ‹จแˆšแ‹ซแˆณแ‹ญ แ‹ฐแˆจแˆฐแŠแฃ
๐Ÿ‘‰แŠจแŒแ‰ฅแˆญ แŠจแ‹แ‹ฉ แ‰…แ‹ตแˆ˜ แ‰ณแŠญแˆต แ‰ฐแ‰€แŠ“แˆฝ แ‹จแ‰ฐแ‹ฐแˆจแŒˆแ‰ แ‰ตแŠ• แ‹จแ‰ณแŠญแˆต แˆ˜แŒ แŠ• แ‹ฐแˆจแˆฐแŠแฃ
๐Ÿ‘‰ แ‰ณแŠญแˆต แŠจแ‹แ‹ฉ แ‹ˆแ‹ฐ แŠ แŒˆแˆญ แ‹แˆตแŒฅ แˆ‹แˆตแŒˆแ‰ฃแ‹ แ‹•แ‰ƒ แ‰€แˆจแŒฅแŠ“ แ‰ณแŠญแˆต แ‹จแŠจแˆแˆˆ แˆ˜แˆ†แŠ‘แŠ• แ‹จแˆšแ‹ซแˆจแŒ‹แŒแŒฅ แ‹จแŒ‰แˆ™แˆฉแŠญ แ‹ตแŠญแˆ‹แˆซแˆตแ‹ฎแŠ•แฃ แ‹จแ‹•แ‰ƒ แˆ˜แˆแ‰€แ‰‚แ‹ซ แˆฐแАแ‹ตแฃ แ‹จแŠญแแ‹ซ แ‹ฐแˆจแˆฐแŠแฃ
๐Ÿ‘‰ แ‰ณแŠญแˆต แŠจแ‹แ‹ฉ แ‹ˆแ‹ฐ แŠ แŒˆแˆญ แ‹แˆตแŒฅ แ‹•แ‰ƒ แˆตแ‹ซแˆตแŒˆแ‰ฃ แŠจCIF แˆ‹แ‹ญ 3% แŠฅแŠ“ แ‰ แŠ แŒˆแˆญ แ‹แˆตแŒฅ แŒแ‰ฅแ‹ญแ‰ต แˆฒแ‹ซแŠจแŠ“แ‹แŠ• 2% แ‹จแ‰ฐแ‰€แАแˆฐแ‰ แ‰ตแŠ• แŠ•แŒแ‹ต แ‰ตแˆญแ แ‰ณแŠญแˆต แŠจแ‹“แˆ˜แ‰ณแ‹Š แ‰ณแŠญแˆต แ‹ซแ‰€แŠ“แАแˆฐแ‰ แ‰ตแŠ• แˆ‚แˆณแ‰ฅ แ‹จแˆšแ‹ซแˆณแ‹ญ แ‹แˆญแ‹แˆญ แˆฐแŠ•แŒ แˆจแ‹ฅ แŠฅแŠ“ แ‹ฐแˆจแˆฐแŠแกแก

แŠจ แŒˆแ‰ขแ‹Žแ‰ฝ แˆšแŠ’แˆตแ‰ดแˆญ Facebook แŒˆแŒฝ

@etconp
โค11๐Ÿ‘1๐Ÿ‘1๐ŸŽ‰1
๐Ÿ” Why do projects exceed budget?

๐ŸทLetโ€™s break it down with a real case!

๐Ÿ“Œ ๐Ÿ”ธCase Study: if let see just an example๐Ÿ™

โบA 4 km urban road project was initially estimated to cost 25 million ETB. Midway through execution, the cost escalated to 34 million ETB a 36% budget overrun.
Why?

โ˜˜Incomplete BOQ during planning

โ˜˜Inflation not accounted for

โ˜˜Scope changes not managed

โ˜˜Inefficient procurement and material waste


๐Ÿ“Š Key Lessons:

1๏ธโƒฃ Accurate Quantity Take-Offs (QTO):
โžค Use updated drawings and software like AutoCAD & Excel or CostX
โžค Cross-verify QTO with field data

2๏ธโƒฃ Rate Analysis:
โžค Include materials, labor, equipment, and overhead
โžค Use local market rates (e.g., from recent supplier quotes)

3๏ธโƒฃ Contingency Planning:
โžค Add 5โ€“10% contingency for risks like price hikes, delays, etc.
โžค Recalculate budget if major scope changes occur

4๏ธโƒฃ Budget Monitoring Tools:
โžค Implement Earned Value Management (EVM)
โžค Compare Planned Value (PV), Actual Cost (AC), and Earned Value (EV)

5๏ธโƒฃ Regular Financial Reviews:
โžค Monthly cost reports and cash flow updates
โžค Involve client & accountant in major budget revisions

๐Ÿ“˜ Pro Tip:
โ€œCost estimation is not just math itโ€™s strategic foresight!โ€

@etconp
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๐Ÿ‘‰แ‹จแˆตแˆแŒ แŠ“ แŠฅแ‹ตแˆ

๐Ÿทแˆˆแˆ˜แ‰แˆˆ แ‹ฉแŠ’แ‰จแˆญแˆตแ‰ฒ แŠชแАแˆ…แŠ•แŒป แ‰ตแˆแˆ…แˆญแ‰ต แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แŠฅแŠ“ แˆ˜แˆแˆ…แˆซแŠ•

๐Ÿ“œApplications Open | Architectural Heritage Documentation Training โ€“ Japan, November 2025

โบMekelle University, in collaboration with Shibaura Institute of Technology (Japan), invites applications for an intensive training on architectural heritage documentation under the JST Sakura Science Exchange Program.

โœ…Open to Mekelle University students (architecture, urban planning, heritage) and staff

โœ…Fully funded: airfare, accommodation, daily allowances

โšก๏ธDeadline: 25 July 2025

๐Ÿ“ฉApply via the Google Form link/QR code in the description๐Ÿ‘‡

https://docs.google.com/forms/d/e/1FAIpQLScMlCkiKZYdGb22WHQUYA7007G5eZMm2PE39JA8xqsyDDmpTg/viewform?usp=preview

Via แŠ แˆ‰แˆ‹ แ‰ฐแˆตแ‹แ‹ญ

@etconp
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แ‰ณแˆแˆซแ‰ต  แ•แˆŒแ‰ต แŠฅแŠ“ แŒ„แ‰ฆแˆแ‰ต แŠ แ‰…แˆซแ‰ข

๐Ÿ“Œแ•แˆŒแ‰ตแŠ“ แŒ„แ‰ฆแˆแ‰ต แ‰ แˆแˆˆแŒ‰แ‰ต แŠ แ‹ญแАแ‰ต แ‹จแ‰ฐแ‹˜แŒ‹แŒ€ แŠ แˆˆแŠ•

๐Ÿ“แŠขแ‰ตแ‹ฎแŒตแ‹ซ แ‹‰แˆตแŒฅ แ‹จแ‰ตแˆ แŠฅแŠ•แˆแŠญแˆŽแ‰ณแˆˆแŠ•


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๐Ÿ‘‰แŠฅแˆตแŠช แ‹›แˆฌ แ‹ฐแŒแˆž แ‰ แˆ˜แŠ•แŒแˆตแ‰ต แŒแ‹ฅ แŠคแŒ€แŠ•แˆฒ PPA 2011 แ‰ แˆ˜แŒ แ‰€แˆ แŠฅแŠ•แ‹ดแ‰ต แ‹จแŒจแˆจแ‰ณ แ‹ถแŠญแˆ˜แŠ•แ‰ต  แŠฅแŠ•แ‹ฐแˆแŠ“แ‹˜แŒ‹แŒ… แŠฅแŠ“แ‹ซแˆˆแŠ•

๐Ÿทแ‹จแŒจแˆจแ‰ณ แ‹ถแŠญแˆ˜แŠ•แ‰ต (Bid document) แˆถแˆตแ‰ต แˆแ‹•แˆซแŽแ‰ฝ แŠฅแŠ“ แ‹˜แŒ แŠ แŠญแแˆŽแ‰ฝ แŠ แˆ‰แ‰ต แŠฅแАแˆฑแˆ แ‹จแˆšแŠจแ‰ฐแˆ‰แ‰ต แŠ“แ‰ธแ‹แฃ

โœ…แˆแ‹•แˆซแ 1. แ‹จแŒจแˆจแ‰ณ แˆตแˆญแ‹“แ‰ถแ‰ฝ(Bidding Procedures)

โœด๏ธแŠญแแˆ 1.แ‹จแ‰ฐแŒซแˆซแ‰พแ‰ฝ แˆ˜แˆ˜แˆชแ‹ซ (Instructions to Bidders (ITB))
โœด๏ธแŠญแแˆ 2. แ‹จแŒจแˆจแ‰ณ แ‹แˆญแ‹แˆญ แˆ˜แˆจแŒƒ แˆฐแАแ‹ต(Bid Data Sheet (BDS))
โœด๏ธแŠญแแˆ 3. แ‹จแŒแˆแŒˆแˆ› แˆ˜แˆตแˆแˆญแ‰ต (Evaluation and Qualification Criteria (EQC))
โœด๏ธแŠญแแˆ 4.แ‹จแŒจแˆจแ‰ณ แ‰…แ†แ‰ฝ (Bidding Forms)
โœด๏ธแŠญแแˆ 5. แ‰ แŒจแˆจแ‰ณแ‹ แˆ˜แˆณแ‰ฐแ แ‹จแˆšแ‰ฝแˆ‰ แˆ€แŒˆแˆฎแ‰ฝ (Eligible Countries)

โœ…แˆแ‹•แˆซแ 2. แ‹จแ‰ฐแˆแˆ‹แŒŠ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แˆฐแŠ•แŒ แˆจแ‹ฅ(Schedule of Requirements)

โœด๏ธแŠญแแˆ 6. แ‹จแ‰ฐแˆแˆ‹แŒŠ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แˆฐแŠ•แŒ แˆจแ‹ฅ(Schedule of Requirements including Scope of works, technical specifications, drawings and bill of quantities.)

โœ…แˆแ‹•แˆซแ 3. แ‹แˆ (Contract)

โœด๏ธแŠญแแˆ 7. แŠ แŒ แ‰ƒแˆ‹แ‹ญ แ‹จแ‹แˆ แˆแŠ”แ‰ณแ‹Žแ‰ฝ (General Conditions of Contract (GCC) )
โœด๏ธแŠญแแˆ 8. แˆแ‹ฉ แ‹จแ‹แˆ แˆแŠ”แ‰ณแ‹Žแ‰ฝ (Special Conditions of Contract (SCC)) แŠฅแŠ“
โœด๏ธแŠญแแˆ 9. แˆžแ‹ดแˆ แ‹แˆŽแ‰ฝ (Contract Forms) แŠ“แ‰ธแ‹::

๐Ÿ“œแˆตแˆˆแ‹šแˆ… แŒจแˆจแ‰ณแ‹แŠ• แˆˆแˆ›แ‹˜แŒ‹แŒ€แ‰ต แŠ แ‹˜แŒ‹แŒ†แ‰ฝ แŠจแˆ‹แ‹ญ แŠจแ‰ฐแ‹˜แˆจแ‹˜แˆฉแ‰ต แ‹‰แˆตแŒฅ แŠญแแˆ 1 แ‹จแ‰ฐแŒซแˆซแ‰พแ‰ฝ แˆ˜แˆ˜แˆชแ‹ซ แŠฅแŠ“ แŠญแแˆ 7 แŠ แŒ แ‰ƒแˆ‹แ‹ญ แ‹จแ‹แˆ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แˆณแ‹ญแˆˆแ‹ˆแŒก แ‰ฃแˆ‰แ‰ แ‰ต แˆแŠ”แ‰ณ แŒฅแ‰…แˆ แˆ‹แ‹ญ แˆ›แ‹‹แˆ แŠ แˆˆแ‰ฃแ‰ธแ‹ แ‰  แŠญแแˆ 1 แŠฅแŠ“ แŠญแแˆ 7 แ‹‰แˆตแŒฅ แˆŠแŠซแ‰ฐแ‰ต แ‹จแˆšแŒˆแ‰ฃแ‹ แ‹แˆญแ‹แˆญ แ‹ˆแ‹ญแˆ แˆ˜แˆจแŒƒ  แ‰ แŠญแแˆ 2 แ‹จแŒจแˆจแ‰ณ แ‹แˆญแ‹แˆญ แˆ˜แˆจแŒƒ แˆฐแАแ‹ต แŠฅแŠ“ แ‰  แŠญแแˆ 8 แˆแ‹ฉ แ‹จแ‹แˆ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แ‹‰แˆตแŒฅ แ‰ แ‰…แ‹ฐแˆ แ‰ตแŠจแ‰ฐแˆ แˆŠแŠซแ‰ฐแ‰ต แ‹ญแ‰ฝแˆ‹แˆ:: แˆŒแˆŽแ‰นแŠ• แŠญแแˆŽแ‰ฝ แŒแŠ• แŠฅแŠ•แ‹ฐแˆšแŠจแ‰ฐแˆˆแ‹ แ‰ แˆ›แˆตแ‰ฐแŠซแŠจแˆ แˆ˜แŒ แ‰€แˆ แ‹ญแ‰ปแˆ‹แˆ::

๐ŸšงแŠญแแˆ 2.แ‹จแŒจแˆจแ‰ณ แ‹แˆญแ‹แˆญ แˆ˜แˆจแŒƒแฆแ‰ แ‹šแˆ… แŠญแแˆ แ‹‰แˆตแŒฅ แŠฅแŠ•แ‹ฐ แ‹จแŠ แŒซแˆซแ‰น แˆ›แŠ•แАแ‰ต,แŠ แ‹ตแˆซแˆป, แŒจแˆจแ‰ณแ‹ แˆšแŒˆแ‰ฃแ‰ แ‰ต แŒŠแ‹œ แŠฅแŠ“ แ‰ฆแ‰ณ แˆŒแˆŽแ‰ฝแˆ แŠฅแŠ“ แ‹จแˆแˆณแˆณแˆ‰แ‰ต แ‹แˆญแ‹แˆญ แАแŒˆแˆฎแ‰ฝ แ‹จแˆแŠ“แˆตแ‰€แˆแŒฅแ‰ แ‰ต แАแ‹‰::

๐ŸšงแŠญแแˆ 3. แ‹จแŒแˆแŒˆแˆ› แˆ˜แˆตแˆแˆญแ‰ตแฆ แ‰ แ‹šแˆ… แŠญแแˆ แ‹‰แˆตแŒฅ แ‰ฐแŒซแˆซแ‰พแ‰ฝแŠ• แˆˆแˆ˜แˆแˆจแŒฅ แ‹จแˆšแˆ†แŠ‘ แˆ˜แˆตแˆแˆญแ‰ถแ‰ฝ แˆ˜แˆžแˆ‹แ‰ต แ‹ญแŠ–แˆญแ‰ฃแ‰ธแ‹‹แˆ:: แˆˆแˆแˆณแˆŒ แ‰ฐแŒซแˆซแ‰พแ‰ฝ แ‹จแˆšแŠ–แˆซแ‰ธแ‹ แˆ›แˆบแŠ–แ‰ฝ (excacator,mixer,dump truck etc.), แ‰ฃแˆˆแ‰แ‰ต 5 แ‹ˆแ‹ญแˆ 3 แŠ แˆ˜แ‰ณแ‰ต ๐Ÿ’ฏ% แ‹ซแŒ แŠ“แ‰€แ‰แŠ แ‰ธแ‹ แ•แˆฎแŒ€แŠญแ‰ถแ‰ฝ แŠฅแŠ“ แˆŒแˆŽแ‰ฝแˆ::

๐ŸšงแŠญแแˆ 4.แ‹จแŒจแˆจแ‰ณ แ‰…แ†แ‰ฝแฆ แ‰ แ‹šแˆ… แŠญแแˆ แ‹‰แˆตแŒฅ แ‹ซแˆ‰ แ‰…แ†แ‰ฝ แ‰ แ‰ฐแŒซแˆซแ‰พแ‰ฝ แ‹จแˆšแˆžแˆ‰ แŠ“แ‰ธแ‹ แŠฅแŠ“ แŒแ‹ฅ แˆแƒแˆšแ‹ แŠ แŠซแˆ แˆแŠ•แˆ แŠ แ‹ญแАแ‰ต แˆˆแ‹แŒฅ แˆ›แ‹ตแˆจแŒ แ‹จแˆˆแ‰ แ‰ตแˆ::

๐ŸšงแŠญแแˆ 5. แ‰ แŒจแˆจแ‰ณแ‹ แˆ˜แˆณแ‰ฐแ แ‹จแˆšแ‰ฝแˆ‰ แˆ€แŒˆแˆฎแ‰ฝแฆ แ‰ แ‹šแˆ… แŠญแแˆ แ‹‰แˆตแŒฅ แ‹ˆแŒชแ‹Žแ‰ฝ แ‰ แˆ˜แŠ•แŒแˆตแ‰ต แ‰ แˆšแˆธแˆแŠ• แŒแ‹ฅแ‹Žแ‰ฝ แˆ‹แ‹ญ แŠฅแŠ•แ‹ฐ แˆตแ‰ณแŠ•แ‹ณแˆญแ‹ต แˆ˜แˆ˜แˆชแ‹ซ แˆƒแ‰ฐแ‰ณ แ‰ฐแ‰€แˆแŒงแˆ::

โบแŒแ‹ฅแ‹ แ‰ แˆˆแŒ‹แˆพแ‰ฝ แ‹จแŒแ‹ฅ แ‹ฐแŠ•แ‰ฅ แˆ˜แˆฐแˆจแ‰ต แ‹จแˆšแˆแ…แˆ แŠจแˆ†แА แ‹ˆแ‹ญแˆ แˆ˜แŠ•แŒแˆตแ‰ต แ‰ แŒจแˆจแ‰ณแ‹ แˆˆแˆ˜แˆณแ‰ฐแ แ‹จแˆšแ‰ฝแˆ‰ แŠ แŒˆแˆฎแ‰ฝแŠ• แ‰ แˆšแˆ˜แˆˆแŠจแ‰ต แˆ›แŠ•แŠ›แ‹แˆ แ‹จแ‰ฐแˆˆแ‹จ แ‹ˆแ‹ญแˆ แ‰ฐแŒจแˆ›แˆช แˆ•แŒ แŠซแ‹ˆแŒฃ แˆˆแ‹แŒฅ แˆ›แ‹ตแˆจแŒ แ‹ญแ‰ฝแˆ‹แˆ::

๐ŸšงแŠญแแˆ 6. แ‹จแ‰ฐแˆแˆ‹แŒŠ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แˆฐแŠ•แŒ แˆจแ‹ฅแฆ แ‰ แ‹šแˆ… แŠญแแˆ แ‹‰แˆตแŒฅ แˆตแˆซแ‹แŠ• แ‰ แ‰ฐแˆ˜แˆˆแŠจแ‰ฐ แˆ™แˆ‰ แ‹แˆญแ‹แˆญ แАแŒˆแˆฎแ‰ฝ แ‹จแˆตแˆซแ‹แŠ• แ‹ˆแˆฐแŠ• แ‰ แˆšแŒˆแ‰ฃ แ‰ แˆšแ‹ซแˆณแ‹ญ แˆ˜แˆแŠฉ แˆ˜แ‰€แˆ˜แŒฅ แŠ แˆˆแ‰ แ‰ต:: แ‰ แ‹‰แˆตแŒกแˆ แŠฅแŠ•แ‹ฐ scope of works, technical specification, drawings แŠฅแŠ“  bill of quantity Or activity schedule แ‰ แˆšแŒˆแ‰ฃ แˆ˜แŠซแ‰ฐแ‰ต แŠ แˆˆแ‰ฃแ‰ธแ‹::

๐ŸšงแŠญแแˆ 8. แˆแ‹ฉ แ‹จแ‹แˆ แˆแŠ”แ‰ณแ‹Žแ‰ฝ แ‰ แ‹šแˆ…แฆ แŠญแแˆ แ‹‰แˆตแŒฅ แˆˆแ•แˆฎแŒ€แŠญแ‰ฑ แˆแ‹ฉ แ‹จแˆ†แŠ‘ แАแŒˆแˆฎแ‰ฝ แ‹จแˆšแ‰€แˆ˜แŒกแ‰ แ‰ต แАแ‹‰:: แˆˆแˆแˆณแˆŒ แŠฅแŠ•แ‹ฐ liquidated damageแฃprice adjustmentแฃdefects liability period แŠฅแŠ“ แ‹จแˆ˜แˆณแˆฐแˆ‰แ‰ต::

๐ŸšงแŠญแแˆ 9.แˆžแ‹ดแˆ แ‹แˆŽแ‰ฝแฆ แ‰ แ‹šแˆ… แŠญแแˆ แ‹ซแˆ‰แ‰ต แ‹แˆŽแ‰ฝ แ‹จแˆšแˆžแˆ‰แ‰ต แŠ แˆธแŠ“แŠแ‹ แŠจแ‰ณแ‹ˆแ‰€ แ‰ แˆแ‹‹แˆ‹ แ‰ขแˆ†แŠ•แˆ แ‹แˆ‰ แˆแŠ• แ‹ญแˆ˜แˆตแˆ‹แˆ แ‹จแˆšแˆˆแ‹แŠ• แ‰€แ‹ตแˆ˜แ‹ แ‰ฐแŒซแˆซแ‰พแ‰ฝ แŠฅแŠ•แ‹ฒแ‹ซแ‹แ‰แ‰ต แˆตแˆˆแˆšแŒ แ‰ แ‰… แŒแ‹ฅ แˆแƒแˆš แŠ แŠซแˆ‹แ‰ต แ‰ แ‹šแˆ… แŠญแแˆ แ‹‰แˆตแŒฅ แˆŠแ‹ซแŠซแ‰ตแ‰ฑแ‰ต แ‹ญแŒˆแ‰ฃแˆ::

๐Ÿ”ฐแˆตแˆˆแ‹šแˆ… แŠญแแˆ 1 แŠ แŠ“ 7แŠ• แŠฅแŠ•แ‹ณแˆˆ แ‰ แˆ˜แ‰ฐแ‹ แŠฅแŠ“ แˆŒแˆŽแ‰ฝ แŠญแแˆŽแ‰ฝแŠ• แ‰ แˆ›แˆตแ‰ฐแŠซแŠจแˆ แˆ›แ‹˜แŒ‹แŒ€แ‰ต แ‹ญแ‰ปแˆ‹แˆ!

๐ŸทแŒฅแ‹ซแ‰„ แŠซแˆ‹แ‰ฝแˆ comment แˆ‹แ‹ญ แŠ แˆณแ‹แ‰แŠ• แŠจแ‹ˆแ‹ฐแ‹ฑแ‰ต แ‹ฐแˆž share แ‹ซแ‹ตแˆญแŒ‰

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bid document @etconp.docx
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๐Ÿ‘‰แ‹จ แŒจแˆจแ‰ณ แ‹ถแŠญแˆ˜แŠ•แ‰ต แˆณแˆแ•แˆ

๐Ÿ“œแ‰ฅแ‹แ‹Žแ‰ฝ แ‰ แŒ แ‹จแ‰ƒแ‰นแŠ• แˆ˜แˆฐแˆจแ‰ต แ‹ญแˆ…แŠ•แŠ• แ‹จ Bid Document แŠฅแŠ•แ‹ฐ แŠ แ‰ฃแˆช แ‰ฐแŒ แ‰€แˆ™แ‰ แ‰ต

๐Ÿ’ซPreparation of bid document

https://t.me/ETCONpWORK

@etconp
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