แจแจแณ
แ แฒแต แแแ แฅแญ 16 แแ 2018
แ. แ แแตแ แแญ แจแฐแแฐแฐ
https://t.me/ETCONpWORK
@etconp
แ แฒแต แแแ แฅแญ 16 แแ 2018
แ. แ แแตแ แแญ แจแฐแแฐแฐ
https://t.me/ETCONpWORK
@etconp
๐2โค1
แจแจแณ
แ แฒแต แแแ แฅแญ 18 แแ 2018
แ. แ แแตแ แแญ แจแฐแแฐแฐ
https://t.me/ETCONpWORK
@etconp
แ แฒแต แแแ แฅแญ 18 แแ 2018
แ. แ แแตแ แแญ แจแฐแแฐแฐ
https://t.me/ETCONpWORK
@etconp
โค2๐1
แจแจแณ
แ แฒแต แแแ แฅแญ 18 แแ 2018
แ. แ แแตแ แแญ แจแฐแแฐแฐ
https://t.me/ETCONpWORK
@etconp
แ แฒแต แแแ แฅแญ 18 แแ 2018
แ. แ แแตแ แแญ แจแฐแแฐแฐ
https://t.me/ETCONpWORK
@etconp
โค3๐1
๐Concrete Curing (Methods, Importance & Site Practice โ Practical & Technical) questions
1. What is concrete curing?
Concrete curing is the process of maintaining adequate moisture, temperature, and time to allow proper hydration of cement and strength development.
2. Why is curing important in concrete works?
Curing improves strength, durability, impermeability, and reduces cracking and surface defects.
3. When should concrete curing start?
Curing should start immediately after the concrete has set sufficiently to prevent surface damage.
4. What happens if concrete is not properly cured?
Poor curing leads to low strength, surface cracking, dusting, shrinkage, and reduced durability.
5. What are the main objectives of concrete curing?
To prevent moisture loss, control temperature, and ensure complete cement hydration.
6. What are the common methods of concrete curing?
Water curing, membrane curing, steam curing, and curing compounds.
7. What is water curing?
A curing method where water is applied continuously to keep the concrete surface moist.
8. What are examples of water curing methods?
Ponding, sprinkling, wet hessian covering, and continuous water spray.
9. Where is ponding commonly used?
On flat surfaces such as slabs, pavements, and bridge decks.
10. What is membrane curing?
A method that involves covering the concrete surface with impermeable materials to prevent moisture loss.
11. What materials are used for membrane curing?
Polythene sheets, bituminous membranes, and curing compounds.
12. What is curing compound?
A liquid chemical applied to the concrete surface to form a moisture-retaining film.
13. Where are curing compounds commonly used?
Road works, large concrete surfaces, and areas where water curing is difficult.
14. What is steam curing?
A curing method using steam to accelerate strength gain, mainly for precast concrete elements.
15. Where is steam curing applied?
Precast yards, concrete blocks, pipes, and factory-produced elements.
16. How long should concrete curing last?
Generally 7 days for ordinary Portland cement and at least 14 days for blended cements, depending on specifications.
17. How does temperature affect curing?
High temperatures increase evaporation and risk of cracking, while low temperatures slow down strength development.
18. What precautions should be taken during hot weather curing?
Increase curing frequency, protect surfaces from direct sunlight, and use windbreaks where necessary.
19. Who is responsible for ensuring proper concrete curing on site?
The site engineer, quality control engineer, and site supervisors.
20. How does proper curing affect concrete durability?
It improves resistance to abrasion, weathering, chemical attack, and extends the service life of the structure.
@etconp
1. What is concrete curing?
Concrete curing is the process of maintaining adequate moisture, temperature, and time to allow proper hydration of cement and strength development.
2. Why is curing important in concrete works?
Curing improves strength, durability, impermeability, and reduces cracking and surface defects.
3. When should concrete curing start?
Curing should start immediately after the concrete has set sufficiently to prevent surface damage.
4. What happens if concrete is not properly cured?
Poor curing leads to low strength, surface cracking, dusting, shrinkage, and reduced durability.
5. What are the main objectives of concrete curing?
To prevent moisture loss, control temperature, and ensure complete cement hydration.
6. What are the common methods of concrete curing?
Water curing, membrane curing, steam curing, and curing compounds.
7. What is water curing?
A curing method where water is applied continuously to keep the concrete surface moist.
8. What are examples of water curing methods?
Ponding, sprinkling, wet hessian covering, and continuous water spray.
9. Where is ponding commonly used?
On flat surfaces such as slabs, pavements, and bridge decks.
10. What is membrane curing?
A method that involves covering the concrete surface with impermeable materials to prevent moisture loss.
11. What materials are used for membrane curing?
Polythene sheets, bituminous membranes, and curing compounds.
12. What is curing compound?
A liquid chemical applied to the concrete surface to form a moisture-retaining film.
13. Where are curing compounds commonly used?
Road works, large concrete surfaces, and areas where water curing is difficult.
14. What is steam curing?
A curing method using steam to accelerate strength gain, mainly for precast concrete elements.
15. Where is steam curing applied?
Precast yards, concrete blocks, pipes, and factory-produced elements.
16. How long should concrete curing last?
Generally 7 days for ordinary Portland cement and at least 14 days for blended cements, depending on specifications.
17. How does temperature affect curing?
High temperatures increase evaporation and risk of cracking, while low temperatures slow down strength development.
18. What precautions should be taken during hot weather curing?
Increase curing frequency, protect surfaces from direct sunlight, and use windbreaks where necessary.
19. Who is responsible for ensuring proper concrete curing on site?
The site engineer, quality control engineer, and site supervisors.
20. How does proper curing affect concrete durability?
It improves resistance to abrasion, weathering, chemical attack, and extends the service life of the structure.
@etconp
โค14๐1
๐แ แแฌแ แฅแแต แจแธแ แ แชแแญแต แ แญแ แฐแแญแแ
๐ซแชแแญแฑ แจแแ แณ แแตแแแต แแแ แแฎแแญแต แฒแแ แ 385 แแญแณแญ แแฌแต แแญ แซแจแ แแแค แ แ แแต แแ แฅแตแจ 400 แฅแแแถแฝแ แแตแฐแแแต แจแแฝแ แฆแตแต แแแฅ แคแถแฝแฃ แแฉ แจแฃแแ แแแจแแฃ แแแแ แจแญแฅแจ-แ แแแตแ แจแตแฅแฐแฃ แ แณแซแพแฝ แ แแตแค
๐งแฅแแฒแแแฆ แจแแแแต แแซแแป แตแแซแแฝแ 15.4 แชแ แแตแญ แจแแจแแ แจแฅแแจแ แแแแถแฝแ แจแซแแ แจแธแ แ แชแแญแตแค แแ แ แซแ แตแตแตแญแ แแแ แแจแญ แณแณแข แฐแฐแญแ แจแฐแแแฃ แแแค
๐ซ10,000 แจแแซแแฌ แฐแญแแฝ แซแจแแ แต แจแแซแแฌ แแญแญ แแแฎ แฅแตแจ แแแ แจแแแ แแญแญ แตแจแตแค แฅแซแแณแแฑ แจแชแแญแฑ แแฝแณ แจแขแตแฎแตแซแ แฐแแฅแฏแแ แฃแ แแ แแฅแต แจแแซแแแฃแญแ แแแฃ
โบแ 51 แจแฐแ แแแ แจแแแณ แญแแแฝแ แ แแแ แ แแ แฐแจแ แ แแแ แจแฑแชแแ แ แแแแแถแฝ แฅแแ แจแแแ แธแ แ แชแแญแตแค แขแตแฎแตแซแ แ แ แแชแซ แแณแ แจแฑแชแตแต แแณแจแป แแแตแจแ แ แแฐแจแแ แแ แแตแฅ แตแแ แณแชแซแ แฅแฅแแต แแแค
@etconp
๐ซแชแแญแฑ แจแแ แณ แแตแแแต แแแ แแฎแแญแต แฒแแ แ 385 แแญแณแญ แแฌแต แแญ แซแจแ แแแค แ แ แแต แแ แฅแตแจ 400 แฅแแแถแฝแ แแตแฐแแแต แจแแฝแ แฆแตแต แแแฅ แคแถแฝแฃ แแฉ แจแฃแแ แแแจแแฃ แแแแ แจแญแฅแจ-แ แแแตแ แจแตแฅแฐแฃ แ แณแซแพแฝ แ แแตแค
๐งแฅแแฒแแแฆ แจแแแแต แแซแแป แตแแซแแฝแ 15.4 แชแ แแตแญ แจแแจแแ แจแฅแแจแ แแแแถแฝแ แจแซแแ แจแธแ แ แชแแญแตแค แแ แ แซแ แตแตแตแญแ แแแ แแจแญ แณแณแข แฐแฐแญแ แจแฐแแแฃ แแแค
๐ซ10,000 แจแแซแแฌ แฐแญแแฝ แซแจแแ แต แจแแซแแฌ แแญแญ แแแฎ แฅแตแจ แแแ แจแแแ แแญแญ แตแจแตแค แฅแซแแณแแฑ แจแชแแญแฑ แแฝแณ แจแขแตแฎแตแซแ แฐแแฅแฏแแ แฃแ แแ แแฅแต แจแแซแแแฃแญแ แแแฃ
โบแ 51 แจแฐแ แแแ แจแแแณ แญแแแฝแ แ แแแ แ แแ แฐแจแ แ แแแ แจแฑแชแแ แ แแแแแถแฝ แฅแแ แจแแแ แธแ แ แชแแญแตแค แขแตแฎแตแซแ แ แ แแชแซ แแณแ แจแฑแชแตแต แแณแจแป แแแตแจแ แ แแฐแจแแ แแ แแตแฅ แตแแ แณแชแซแ แฅแฅแแต แแแค
แญแ แแฎแแญแต แ แแแ แแฐ แฅแแแต แจแแแแฅแค แจแขแตแฎแตแซแ แจแฐแแฅแฎแ แจแฃแ แ แธแแแฝ แแแ แแแ แจแแซแแแ แ แญแต แจแแตแจแ แจแแฐแแญ แแแแต แ แฐแแฃแญ แจแณแจแ แต แณแแ แตแซ แแแกแก
Via PMO Ethiopia
@etconp
โค13
๐แฑแฃแญ แ แแญแ
แแแแต แแตแแแฃ แแ
๐งแญแ แ แแแ แจแแแแชแซแ แแ แแณแฉแ แแแแแชแซ แแแแข
โบแแชแแฟ แฑแฃแญ แ แแแ แจแแแแชแซแ แจแแญแ แแณแ แแแ แตแแแแฝแข
โบแฑแฃแญ แฅแ แแ "แจแแญแ แจแฐแ" แจแแ แ แฝแ แตแ แตแฐแฃแแฝ แแญแแซแฑแ แ แแแ แแญ แซแแต แตแแแ แจแแญแ แแแ แซแแฝ แจแฐแแฝ แ แแท แ แแแ แแแข
โบแ แแ แญแซแฝ แแแแต แแตแฐแซแ แต แแแข
@etconp
๐งแญแ แ แแแ แจแแแแชแซแ แแ แแณแฉแ แแแแแชแซ แแแแข
โบแแชแแฟ แฑแฃแญ แ แแแ แจแแแแชแซแ แจแแญแ แแณแ แแแ แตแแแแฝแข
โบแฑแฃแญ แฅแ แแ "แจแแญแ แจแฐแ" แจแแ แ แฝแ แตแ แตแฐแฃแแฝ แแญแแซแฑแ แ แแแ แแญ แซแแต แตแแแ แจแแญแ แแแ แซแแฝ แจแฐแแฝ แ แแท แ แแแ แแแข
โบแ แแ แญแซแฝ แแแแต แแตแฐแซแ แต แแแข
@etconp
๐8โค5
๐ INTERCON Construction Chemicals
โ Concrete Admixtures
โ Bonding Agents
โ Waterproofings
โ Wall Putty, Prime Coat
โ Concrete Repair Mortar
โ Floor hardener, Epoxy
โ Grout, Self-level mortar
โ Quartz paint, Contextra
โ Tile Adhesive & Tile Joint Fillers
โ Geotextiles and other construction chemicals and materials
โ๏ธ Tel: 0961955555
๐น Address 1: Signal road, around
Dinberwa Hospital
๐น Addres 2: Wellosefer, Infront of
Dani Plaza
โ Concrete Admixtures
โ Bonding Agents
โ Waterproofings
โ Wall Putty, Prime Coat
โ Concrete Repair Mortar
โ Floor hardener, Epoxy
โ Grout, Self-level mortar
โ Quartz paint, Contextra
โ Tile Adhesive & Tile Joint Fillers
โ Geotextiles and other construction chemicals and materials
โ๏ธ Tel: 0961955555
๐น Address 1: Signal road, around
Dinberwa Hospital
๐น Addres 2: Wellosefer, Infront of
Dani Plaza
โค1
3155. Which station is primarily used for train overtaking?
Anonymous Quiz
16%
(a) Junction station
16%
(b) Flag station
30%
(c) Crossing station
38%
(d) Terminal station
โค4
3153. In earthen dam at the entry point, the phreatic line must be normal to the
Anonymous Quiz
15%
(a) Directrix
16%
(b) Focus
46%
(c) Upstream face
22%
(d) Downstream dam
๐4
3152. Assertion (A): Subgrade soil must have good drainage properties.
Reason (R): Good drainage helps reduce moisture retention and frost action.
Reason (R): Good drainage helps reduce moisture retention and frost action.
Anonymous Quiz
21%
(a) Both A and R are true, but R is not the correct explanation of A.
16%
(b) A is true, but R is false.
51%
(c) Both A and R are true, and R is the correct explanation of A.
12%
(d) A is false, but R is true.
โค2๐2
3151. Which of the following describes the requirements, dimensions, materials and procedures that are used to achieve the construction of any building?
Anonymous Quiz
12%
(a) Description of contract
58%
(b) Specification
28%
(c) Bill of quantities
3%
(d) Schedule of rates
โค6๐3
3149. In construction cost estimate and valuation, 'plinth area estimate' is commonly used for which of the following purposes?
Anonymous Quiz
62%
(a) Quick estimation of building cost based on built-up area
16%
(b) Calculating only the foundation cost
11%
(c) Industrial construction projects
11%
(d) Estimating the cost of roads and bridges
โค10๐2
3147. What is the maximum permissible vertical deflection under live load for purlins supporting brittle cladding in an industrial building, according to IS: 800 โ 2007?
Anonymous Quiz
31%
(a) Span/180
35%
(b) Span/240
21%
(c) Span/500
12%
(d) Span/300
โค2๐2
3146. Which factors influence the short-term deflection of a slab in the limit state of serviceability?
Anonymous Quiz
21%
(a) Span length and aggregate size
12%
(b) Age of concrete and water-cement ratio
19%
(c) Creep and shrinkage of concrete
48%
(d) Magnitude of live loads, amount of steel reinforcement, and concrete strength
โค4