1. Contraction joints
  2. Expansion joints
  3. Point joints
  4. Shrinkage Joints
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1 Answers

Option 1 : Contraction joints

Explanation:

The spacing of the contraction joint is less than the expansion joint, which is also shown in the following table

As per IS 6509: 1985, Table 1, Cl: 5.3.1.2, is shown below in the tabulated form:

Type of Slab

Width of Slab (m)

Spacing for Expansion joint

Spacing for Contraction Joint

RCC

0.25

51 m

17 m

0.20

45 m

14 m

0.15

36 m

13 m

0.10

30 m

7.5 m

PCC

0.20 and above

36

4.5 m

0.15

27

4.5 m

0.10

27

4.5 m

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