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Q. Complete embedment of pipelines into thrust blocks
For unreinforced concrete thrust blocks in bends and tees for pressurized pipelines, it's recommended that contact surface between pipelines and concrete thrust blocks must not exceed 45o from either side of pipe in the direction of thrust force through the centre of pipelines. The reason is to prevent occurrence of potential cracking arising from deformation of pipelines under loading condition. If it is essential to embed the whole section of pipelines into concrete, it's suggested to coat the pipe with a flexible material.
Tests on Limestones Practical tests are made on lime stones to decide their suitability is following: i. Physical tests ii. Heat test iii.
Explain the Components of a rebound Hammer? Several components of a rebound hammer are displayed in below Figure. 1. Concrete surface; 2. Impact spring; 3. Rider on gui
Q. Diffrence between Hudsons and Van der Meer formula? Hudson's formula is usually adopted in preliminary design to attain rough initial estimate of rock size. This formula is
Similarity between post and pre tensioned concrete In the case of pre-tensioned concrete members, a pattern of small length and small width cracks which are more in numbers
Q. Disadvantages of excessive concrete covers? In reinforced concrete structures cover is generally provided to protect steel reinforcement from corrosion and to provide fire r
Question Shall layer of wearing course or additional thickness be designed on surface of piers ? Answer In designing of piers , considerations have to be given to
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Q- What are loads and forces taken into account for designing a pile and what is load carrying capacity of a pile. Ans. For designing a pile the following loads and force ar
Shear distribution for I section
Most of the existing rubber dams are of air-filled types. Water-filled rubber dams aren't preferred for the below reasons: (i) By giving same sheet length and dam height, tensi
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