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Question
What is the reason that vibrators not used in concrete compaction in piling works?
Answer Concrete for piles must be a high-slump self-compacting mix that is capable of flowing between reinforcement cages with simplicity. As concrete is designed to be self-compacting, vibrators are not used for given that additional compaction. Furthermore, concrete in piles is compacted by power derived from free falling. Though, if vibrators are used, vibrated concrete can be compacted to sides of concrete casings and hinders lifting up of casings.
Loss of prestress due to relaxation of steel Relaxation of steel represents the time dependent reduction of stresses in steel even when the strain remains constant. In a way i
Your home mortgage is $300,000 for 30 years with a nominal annual rate of 7%. The monthly payment is most nearly: Solution: n = 360 months interest = 7%-annual ÷ 12-months/year
how surface water can be controlled in road pavement
Question In execution compression test for concrete , have to test cubes .Test cylinders be approved? Answer Essentially, results of compression test carried out by using cu
Q. Why does pipe jacking machine usually get stuck when the ground condition change from soil to very hard rock? When pipejacking machine moves from anarea of soil to very hard
Explain Measured shovel Packing Measured shovel Packing essentially consists of accurate measurements of track defects particularly the unevenness and voids caused in the cour
Explain the Anti Slip Devices - Bridge Bearing? It has been explained earlier that elastomeric bearings have a tendency to slip if the minimum normal pressure is less than 2 MP
Define the Frame Column Analysis 1. Based on if a column section is a braced frame or unbraced frame. 2. Braced frame-indicates buckling mode shape does not involve tr
Q. Purpose of setting minimum amount of longitudinal steel areas for columns? In some design codes it specifies that area of longitudinal steel reinforcement must be not less
Grouted or Penetration Macadam: This is a specification where the binder is sprayed on a compacted layer of stone aggregates and is allowed to penetrate and bind the aggregat
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