Ethio Construction Engineering
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πŸ”¨ World Construction Engineering
Latest updates, tips, and tutorials on building, civil engineering, and construction in World.
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πŸ“¨ @Philemona7 Or @ETCONpBOT

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πŸ‘‰Calling all architecture students and recent graduates (2017 E.C.)!

🚧Join us for the first Information Session of the Student Design Competition – Celebrating Sustainable Design and Urban Culture 🌍✨

πŸ“… Monday, 18 August 2025
πŸ•“ 4:00 PM – 5:00 PM | 10 to 11 Local Time
πŸ“ Google Meet β†’ https://meet.google.com/zdp-dshg-wwi

πŸ“œThis is your opportunity to:

βœ… Get clarity on the competition guidelines
βœ… Ask questions directly to the organizers
βœ… Prepare your best pavilion design idea!

ℹ️ No registration needed for the competition or the info session β€” just join in!

@etconp
❀4πŸ‘2
πŸ‘‰α‰αŠ« (Grooving) αˆαŠ•α‹΅αŠα‹?

πŸ’«In building construction, grooving serves several important purposes, primarily related to concrete slabs, pavements, and masonry walls.

πŸ“œHere are the key purposes of grooving:

🚧1. Control of Cracking (Contraction Joints)

- Grooves are cut into concrete slabs to create controlled joints that help prevent random cracking caused by shrinkage, temperature changes, or settling.
- By providing a weakened plane, cracks are directed along the groove rather than appearing randomly.

🚧2. Enhancing Skid Resistance

- In pavements, roads, and industrial floors, grooving improves traction by creating a textured surface.
- This is especially important in airport runways, highways, and parking garages to prevent skidding in wet conditions.

🚧3. Expansion Joints

- Grooves allow for thermal expansion and contraction of concrete, reducing stress buildup that could lead to cracks or buckling.

🚧4. Aesthetic and Architectural Design

- Grooves can be used decoratively in concrete walls, floors, and facades to create patterns or textures.
- They help in segmenting large surfaces for visual appeal.

🚧5. Drainage Improvement

- In pavements and outdoor slabs, grooves can channel water away, reducing ponding and improving safety.

🚧6. Structural Stress Relief

- In masonry and brickwork, grooves (such as control joints) help manage movement due to thermal changes or settling.

⭐️Common Applications:

- Concrete floors & pavements (control joints)
- Roads & runways (skid resistance)
- Brick & masonry walls (expansion control)
- Decorative concrete finishes

πŸ”°Methods of Grooving:

- Saw-cutting (post-placement)
- Tooled joints (during concrete finishing)
- Formed grooves (using inserts before pouring)

❇️Grooving is a preventive and functional technique that enhances durability, safety, and aesthetics in construction.

@etconp
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Bending moment at any section in a conjugate
beam gives the actual beam's–
Anonymous Quiz
8%
(a) Slope
56%
(b) Deflection
25%
(c) Bending moment
11%
(d) Curvature
πŸ‘8πŸ‘4❀2πŸ₯°1
A propped cantilever beam of span 'L' is
loaded with UDL of intensity W/unit length, all
through the span. The BM at the fixed end is
Anonymous Quiz
32%
wl2/8
33%
wl2/12
17%
wl3/8
18%
wl2/4
πŸ‘8❀2
A uniformly distributed load longer than the
span of girder moves from left to right. The
maximum bending moment at the center of the span occurs when the uniformly distributed load occupies
Anonymous Quiz
53%
(a) whole span of girder
26%
(b) right half span of girder
15%
(c) left half span of girder
6%
(d) none of these
πŸ‘10❀1πŸ‘1
In case of unavailability of space for providing
development length in an RCC beam which
option shall NOT be used to satisfy the criteria of development length?
Anonymous Quiz
39%
chairs
27%
hooks
16%
bends
19%
mechanical anchorages
πŸ₯°5
The slope correction for a length of 30 m along
a gradient of 1 in 20 is ..........
Anonymous Quiz
26%
a) 3.75 cm
46%
(b) 0.375 cm
19%
c) 37.5 cm
9%
(d) 2.75 cm
πŸ”₯2πŸ™2
The shear strength in plastic undrained clay, is
due to ..........
Anonymous Quiz
19%
(a) inter-granular friction
19%
(b) internal friction
57%
(c) cohesion
6%
(d) none of these
πŸ™3❀1
There are two types of energy losses through
pipes, major losses and minor losses. Major
losses through pipes are due to ______.
Anonymous Quiz
19%
(a) contraction of pipe
25%
(b) sudden enlargement of pipe
30%
(c) leakage of pipe
26%
(d) friction
πŸ™4❀3
Which of the following formulas is used for
calculation of earthwork volume and is also
known as the average end area formula?
Anonymous Quiz
51%
(a) Trapezoidal formula
18%
(b) Mid-section formula
17%
(c) Prismoidal formula
14%
(d) Simpsons formula
πŸ™6❀1
The impact value of aggregate is calculated for
understanding which one of the following
characteristic property of aggregate?
Anonymous Quiz
23%
(a) Specific Gravity
36%
(b) Resistance to sudden dynamic load
31%
(c) Abrasion
10%
(d) Porosity
πŸ”₯3πŸ™3
Which of the given options is NOT a type of
water distribution network?
Anonymous Quiz
40%
(a) Perpendicular system
23%
(b) Grid iron system
16%
(c) Ring system
20%
(d) Radial system
πŸ‘5❀1
Which type of rollers are most effective for the
compaction of sands?
Anonymous Quiz
19%
(a) Pneumatic rollers
26%
(b) Smooth wheeled rollers
32%
(c) Vibratory rollers
24%
(d) Sheep foot rollers
πŸ‘4❀1
The design value of limiting span to effective
depth ratio for deflection control of a beam is
independent of:
Anonymous Quiz
26%
(a) span of the beam
25%
(b) area of compression reinforcement
19%
(c) service stress in tension reinforcement
29%
(d) creep and shrinkage
❀5πŸ‘3πŸ™1
Which of the these benefits is absent in rapid
hardening cement?
Anonymous Quiz
13%
(a) Faster construction
19%
(b) Short curing period
30%
(c) Light in weight
38%
(d) Higher final setting time
❀8πŸ™2πŸ‘1
πŸ‘‰ INTERCON Construction Chemicals 

● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Wall Putty, Prime Coat
● Concrete Repair Mortar
● Floor hardener, Epoxy
● Grout, Self-level mortar
● Quartz paint, Contextra
● Tile Adhesive & Tile Joint Fillers 
● Geotextiles and other construction chemicals and materials

Tel: 0961955555
Address: Signal, around signal mall
❀4πŸŽ‰1
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