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Q. What do you mean by Settlement Cracks?
Settlement cracks normally take place in diagonal position. Sometimes vertical cracks may also take place (Figure (a)). Settlement cracks start from the top bottom or end of the wall. Crack due to differential settlement may take place if the top end of the wall has settled more than the rest of the building.
Cracks developed due to other reasons (not settlement) will be irregular as shown in Figure (b).
Cracks may develop in buildings due to other factors like thermal changes, bad construction, faulty placement of concrete etc.
Movement accommodation factor is normally specified by manufacturers of joint sealants for designers to design dimension of joints. It is stated as the total movement that a joint
Q. Grouting in segmental linings in tunnels? Grouting is typically carried out under pressure in segmental linings at the time of tunnel construction due to the below reasons:
Explain Flow Measurement with Weirs Fixed plates positioned vertically in an open channel over which flow is directed through an opening. The opening linear distance is termed
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Tension reinforcement leads to increasing deflection in concrete structures? In BS8110 a modification factor is applied to span/depth ratio to take into account effect of tens
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