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๐Ÿ”จ World Construction Engineering
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๐Ÿ“จ @Philemona7 Or @ETCONpBOT

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๐Ÿ‘‰แŠ’แ‹ แ‹ฎแˆญแŠญแŠ• แ‹จแˆšแ‹ซแˆณแ‹ญ แ‹ฒแ‹›แ‹ญแŠ• แˆˆแˆ˜แŒˆแŠ•แ‰ฃแ‰ต 21 แ‹“แˆ˜แ‰ณแ‰ต แ‹จแˆแŒ€แ‰ แ‰ต แ‹ตแ‰ฅแ‰ แˆฐแ‹

แ‹จแŠ’แ‹ แ‹ฎแˆญแŠญ แŠจแ‰ฐแˆ›แŠ• แ‹จแˆšแ‹ซแˆณแ‹ญ แŠ แАแˆตแ‰ฐแŠ› แ‹ฒแ‹›แ‹ญแŠ• แˆˆแˆ˜แŒˆแŠ•แ‰ฃแ‰ต 21 แ‹“แˆ˜แ‰ณแ‰ตแŠ• แ‹จแˆแŒ€แ‰ แ‰ต แ‹ญแˆ… แˆฐแ‹แŠจแˆฐแˆžแŠ‘ แ‰ แˆ›แŠ…แ‰ แˆซแ‹Š แ‹ตแˆจ แŒˆแ… แˆ˜แАแŒ‹แŒˆแˆญแ‹ซ แˆ†แŠ—แˆแข

แˆˆแˆตแˆซแ‹ แŒฅแ‰ƒแ‰…แŠ• แŠฅแŠ“ แŠ แАแˆตแ‰ฐแŠ› แ‹จแŠฅแŠ•แŒจแ‰ต แŒแ‰ แ‹“แ‰ต แ‹จแ‰ฐแŒ แ‰€แˆ˜ แˆฒแˆ†แŠ• แ‰ แˆ›แˆณแ‹ซ แ‹แˆตแŒฅแŠ• แŠจ1 แˆšแˆŠแ‹ฎแŠ• แ‰ แˆ‹แ‹ญ แ‹จแˆšแˆ†แŠ‘ แ‹จแŠ’แ‹ แ‹ฎแˆญแŠญ แˆ…แŠ•แŒปแ‹Žแ‰ฝ แ‹จแ‰ฐแŠซแ‰ฐแ‰ฑแ‰ แ‰ต แ‹จแŠจแ‰ฐแˆ›แ‹‹แŠ• แ‰ตแŠญแŠญแˆˆแŠ› แŒˆแŒฝแ‰ณ แ‹จแˆšแ‹ซแˆณแ‹ญ แАแ‹แข

แ‹ญแˆ… แ‹จแŠจแ‰ฐแˆ›แ‹‹แŠ• แˆ›แˆณแ‹ซ แ‹ญแˆ†แŠ“แˆ แ‹จแ‰ฐแ‰ฃแˆˆแ‹ แ‹ฒแ‹›แ‹ญแŠ• 15 แˆœแ‰ตแˆญ แˆญแ‹แˆ˜แ‰ต แ‹ซแˆˆแ‹ แˆฒแˆ†แŠ• 9 แˆœแ‰ตแˆญ แˆตแ‹แ‰ต แŠ แˆˆแ‹แข 

แ‰ แ‹แˆตแŒก แŠจแˆฐแˆ›แ‹ญ แŒ แ‰€แˆต แˆ…แŠ•แƒแ‹Žแ‰ฝ แŠฅแˆตแŠจ แˆ˜แ‹ฐแ‰ แŠ› แ‹จแˆ˜แŠ–แˆญแ‹ซ แˆ…แŠ•แŒปแ‹Žแ‰ฝแŠ•แˆ แŠ แŠซแ‰ถ แ‹ญแ‹Ÿแˆแข

แ‹ญแˆ…แŠ•แŠ• แ‹จแˆฐแˆซแ‹ แ‰ฃแˆแˆžแ‹ซ แ‰ฅแ‹™แˆ แ‹จแˆ›แ‹ญแ‰ณแ‹ˆแ‰… แ‹จแАแ‰ แˆจ แ‰ขแˆ†แŠ•แˆ แˆตแˆซแ‹แŠ• แ‰ แˆ›แŠ…แ‰ แˆซแ‹Š แŒˆแ… แŠซแŒ‹แˆซ แ‰ แŠ‹แˆ‹ แ‰ แ‰ฅแ‹™แ‹Žแ‰ฝ แ‹˜แŠ•แ‹ต แˆ˜แАแŒ‹แŒˆแˆญแ‹ซ แˆ†แŠ– แŠจแ‰ฅแ‹™ แˆฐแ‹Žแ‰ฝ แ‹˜แŠ•แ‹ต แŠ แ‹ตแŠ“แ‰†แ‰ต แŠ แŒแŠแ‰ทแˆแข

Via EBC

@etconp
โค17๐Ÿ‘5
๐Ÿ‘‰ INTERCON Construction Chemicals 

โ— Concrete Admixtures
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โ— Tile Adhesive & Tile Joint Fillers 
โ— Geotextiles and other construction chemicals and materials

Tel: 0961955555
Address: Signal, around signal mall
๐Ÿ‘3โค2
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
0994941708
โค8
๐Ÿ‘‰WHY FRESH CONCRETE CRACKS ON THE NEXT DAY AFTER POURING

๐Ÿ’ซThe Main reasons Behind Early Concrete Cracks

โœ…Plastic Shrinkage

โบFresh concrete is like wet clayโ€”if it dries too quickly, it shrinks and cracks. This is called plastic shrinkage cracking, and it happens when the surface loses moisture faster than the concrete can harden. Hot, windy, or dry weather speeds up evaporation, leaving behind spiderweb-like cracks or even deeper splits. 

โœ…Too Much Water in the Mix 

โบItโ€™s tempting to add extra water to make concrete easier to pour, but this is a major mistake. Excess water weakens the mix and increases shrinkage as it dries, leading to cracks. 

โœ…Poor Subgrade Preparation 

โบFor ground supported Concrete structures  as it needs a solid, well-compacted base. If the ground underneath is soft, uneven, or poorly drained, the concrete structure will settle and crack. 

โœ…Missing Control Joints 

โบConcrete will crackโ€”itโ€™s a fact. But without control joints, cracks appear randomly and can worsen over time. 

โœ…Pouring in Extreme Weather 

โบHot weather causes rapid drying and cracking. 
Cold weather can freeze the mix before it cures, leading to weak, crumbly concrete.

๐Ÿ’ซCracks allow water

โบpenetration, leading to rebar corrosion, concrete spalling, and reduced load capacity. In critical structures, small cracks can grow into major failures requiring expensive repairs.

โšก๏ธSo be cautious and ensure a proper curing, jointing, and mix design.

@etconp
โค12๐Ÿ‘4
๐Ÿ‘‰How BIM Enhances Construction Site Safety

๐Ÿ’ซBuilding Information Modeling (BIM) is transforming construction site safety by shifting from reactive responses to proactive prevention.

โœ…Proactive Hazard Identification

BIM enables the creation of detailed 3D models that simulate construction processes, allowing teams to identify and mitigate potential hazards before they occur on-site. This proactive approach reduces the likelihood of accidents and enhances overall safety planning.

โœ…Improved Communication and Coordination

By providing a centralized platform for all project stakeholders, BIM ensures that everyone has access to up-to-date information. This transparency fosters better communication, reduces misunderstandings, and ensures that safety protocols are consistently applied across the board.

โœ…Enhanced Training and Preparedness

BIM's visual simulations serve as effective training tools, allowing workers to familiarize themselves with the construction environment and potential risks in a virtual setting. This preparation leads to increased awareness and adherence to safety measures on the actual site.

โœ…Real-Time Monitoring and Risk Management

Integrating BIM with technologies like sensors and wearable devices facilitates real-time monitoring of site conditions and worker movements. This integration allows for immediate identification of safety breaches and swift corrective actions, thereby minimizing risks.

โœ…Cultivating a Safety-First Culture

The comprehensive data and insights provided by BIM encourage a culture that prioritizes safety. Continuous feedback loops and data analysis help in refining safety protocols and fostering an environment where safety is an integral part of the construction process.

By integrating BIM into construction projects, companies can significantly enhance site safety, reduce accidents, and promote a culture of proactive risk management.

In the context of our countries rapidly growing construction sector, As projects expand across the country, the need for safer, smarter, and more collaborative planning is urgent. So Implementing BIM can empower construction firms to foresee risks, enhance site coordination, and foster a culture of safety from the ground up.

What do you think? Itโ€™s time to move beyond traditional methods and embrace BIM as a powerful ally for a safer, more resilient construction industry in our country.

@etconp
โค10๐Ÿ‘4๐ŸŽ‰1
Ethio Construction Engineering
๐Ÿ‘‰แŠ แˆตแ‹ฐแˆณแ‰ฝ แ‹œแŠ“ แˆˆแ‹šแˆ… แ‰ปแŠ“แˆ แ‰คแ‰ฐแˆฐแ‰ฆแ‰ฝ ๐Ÿ’ซแ‹จ "Quantity Surveying" Full Course แŠฆแŠ•แˆ‹แ‹ญแŠ• แˆ‹แ‹ญ แ‰  แŠ แˆ›แˆญแŠ› แ‰‹แŠ•แ‰‹ แˆ˜แˆ›แˆญ แ‹จแˆแ‰ตแˆแˆแŒ‰ แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แŠฅแŠ“ แ‹จ แŠฎแŠ•แˆตแ‰ตแˆซแŠญแˆฝแŠ• แ‰ฃแˆˆแˆžแ‹ซแ‹Žแ‰ฝ แŠฃแŠ•แ‹ฐแŠ› แ‹™แˆญ แ‰ แ‰ฐแˆ˜แŒฃแŒฃแŠ แ‹‹แŒ‹ แˆˆแŒฅแ‰‚แ‰ต แ‰ฐแˆ›แˆชแ‹Žแ‰ฝ แˆแ‹แŒˆแ‰ฃ แŒ€แˆแˆจแŠ“แˆ                 ๐Ÿ”ฅ แ‹ญแˆ… แˆตแˆแŒ แŠ“ แˆแŠ• แˆแŠ• แ‰ตแˆแˆ…แˆญแ‰ถแ‰ฝแŠ• แ‹ซแŠซแ‰ตแ‰ณแˆ? ๐Ÿ’ซTakeoff sheet ๐Ÿ’ซBill of Quantity(BOQ) ๐Ÿ’ซPayment Certificateโ€ฆ
๐Ÿทแˆแ‹แŒˆแ‰ฃ แŒจแˆญแˆฐแŠ“แˆ๐Ÿ™

๐Ÿ’ซแˆˆ "Quantity Surveying" Full Course แ‰  แŠฆแŠ•แˆ‹แ‹ญแŠ• แˆˆแˆ˜แˆ›แˆญ แ‹จแ‰ฐแˆ˜แ‹˜แŒˆแ‰ฃแ‰น แ‰  แˆ™แˆ‰ แ‹›แˆฌ แˆ›แ‰ณ แŠ แŠ•แ‹ต แˆฐแ‹“แ‰ต แŠญแˆ‹แˆต แ‹ญแŒ€แˆ˜แˆซแˆโค

๐Ÿ“ฉแˆˆแ‰ แˆˆแŒ  แˆ˜แˆจแŒƒ  @Philemona7 แ‹ˆแ‹ญแˆ 0925446661 แ‹ญแ‹ฐแ‹แˆ‰

@etconp
โค8
Ethio Construction Engineering
๐Ÿ‘‰Types of Structures in Construction ๐ŸšงEvery structure in construction whether itโ€™s a bridge, roof, wall, or slab has one main purpose, to carry loads safely. ๐ŸŽฒBut what many overlook is that each structure carries these loads differently, depending on theโ€ฆ
Continued...

๐ŸšงCore and Outrigger Systems:

โบFor tall buildings above 30 stories, traditional frame systems become less efficient in resisting lateral movement. Core and outrigger systems resolve this by combining a central reinforced concrete core (housing elevators and services) with horizontal outrigger trusses or beams that connect to outer perimeter columns. This configuration significantly enhances the buildingโ€™s stiffness and limits lateral sway, improving comfort for occupants and structural safety during windstorms or earthquakes. It is a go-to system for modern skyscrapers.

๐ŸšงTruss Systems

โบTrusses are frameworks made of straight members arranged in interconnected triangles, which efficiently distribute loads through axial tension and compression. They are widely used for spanning large distances in bridges, warehouses, airplane hangars, and auditoriums. Trusses can be made from steel, timber, or aluminum, depending on the application. Their fabrication can be done off-site and assembled on-site, which improves construction speed and quality control.

๐ŸšงArch Systems

โบArch systems rely on compression to carry loads along a curved path to the supports. Historically used in Roman aqueducts and cathedrals, arches remain relevant today in bridges, tunnels, and even decorative elements. On-site, formwork and support for arches require skilled labor, but the resulting structure is elegant and structurally efficient. The key design consideration is the horizontal thrust, which must be resisted by abutments or tension ties.

๐ŸšงShell Structures

โบShell structures are thin, curved surfacesโ€”like domes or hyperbolic paraboloidsโ€”that carry loads in multiple directions.

โบThey achieve high strength with minimal material thickness, making them economical and visually striking.

โบThese are used in water tanks, stadiums, airport terminals, and religious buildings.

โบAlthough challenging to design and construct, their strength-to-weight ratio is exceptional. Construction often requires advanced formwork and precise concreting techniques.

๐ŸšงSpace Frames

โบSpace frames are three-dimensional frameworks made of interconnected struts arranged in a geometric pattern. They offer excellent rigidity and can span large areas with few supports. Common in airports, exhibition halls, and stadium roofs, space frames are usually fabricated off-site and assembled using bolt or weld connections. The modular design allows for flexibility in architectural expression and efficient load distribution.

๐ŸšงSuspension and Cable-Stayed Systems

โบSuspension structures use cables hanging from tall towers to support the load belowโ€”classic examples include long-span bridges and some stadium roofs. In cable-stayed systems, cables run directly from the towers to the deck, offering more stiffness and reduced cable length. These systems are visually appealing and structurally efficient but require precise engineering and tensioning. They are ideal for large spans where conventional supports are not feasible.

โญ๏ธEach structural system serves a distinct purpose depending on the buildingโ€™s height, function, location, and material availability. From the solid simplicity of load-bearing walls to the innovative geometry of space frames and the dramatic reach of cable-stayed bridges, structural systems are the backbone of construction.

@etconp
โค16
If the sensitivity of a soil is between 4 and 8,
then it will be called as :
Anonymous Quiz
15%
(a) Insensitive soil
25%
(b) Less sensitive soil
45%
(c) Sensitive soil
15%
(d) Extra sensitive soil
โค12
The most accurate method of determining the
water content in a sample of soil is:
Anonymous Quiz
14%
(a) Sand bath method
8%
(b) Calcium carbide method
75%
(c) Oven drying method
2%
(d) Alcohol method
โค11
The ratio of a given volume change in a soil,
expressed as percentage of the dry volume, to
the corresponding change in water content is called
Anonymous Quiz
31%
(a) Specific gravity of soil solids
13%
(b) Mass-specific gravity of soils
40%
(c) Shrinkage ratio of soils
15%
(d) Density ratio of soils
โค7๐ŸŽ‰2
By approximate method, the computation of Ncomponent at the time of sudden drawdown
condition, the weight is considered as:-
Anonymous Quiz
20%
(a) Dry unit weight
31%
(b) Saturated unit weight
22%
(c) Bulk unit weight
27%
(d) Submerged unit weight
๐Ÿ™9โค2๐Ÿ‘2
5.Calculate the theoretical weight of a steel bar of length 8 m and diameter 20 mm. Take density of steel as 7850 kg/mยณ.
Anonymous Quiz
59%
19.27
15%
15.58
16%
17.77
11%
12.56
โค11๐ŸŽ‰4
11. Identify the behaviour study of soils in which the zero air void unit weight is found.
Anonymous Quiz
8%
shear strentgh test
16%
permeability test
56%
Compaction test
20%
Consolidation test
๐Ÿ‘11โค3๐Ÿฅฐ1
12. Which of the following constant factore relates stress in the steel linearly with stress in adjoining concrete?
Anonymous Quiz
24%
Poissions ratio
39%
youngs modulus
22%
Shear modulus
15%
modular Ratio
๐Ÿ‘8โค4
15. A reinforced concrete retaining structure that provides skeletal support to earthen materials is called
Anonymous Quiz
43%
Backfill
4%
Erosion
49%
Laterl pressure
4%
Plasticity
๐Ÿ‘8๐Ÿ˜ญ2
16. The standard consistency test of cement is conducted by using
Anonymous Quiz
25%
Casagrandes apparatus
16%
Blaines permeability apparatus
27%
Le Chateliers apparatus
32%
Vicats apparatus
โค4
18. Which of the following is NOT a structural stability criterion of a gravity dam?
Anonymous Quiz
34%
Overspill
43%
Crushing
10%
Slidng
14%
Overturning
โค5๐Ÿ‘3