In a CC pavement- with the expansion joint gap of 2-5cm- if the minimum temperature is 15-C and maximum slab temperature in summer is 55-C the spacing between expansion joints in metres isCoefficient of thermal expansion of concrete -10 - 10-6- -C- The joint filler can compress upto 50

Joint filler can compress upto 50 = 0.5 × 2.5 = 1.25 cm nbsp; nbsp; Temperature difference = 55 15 = 40^oC Spacing between expansion joint L=δ/(100×α×Δ ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Other

Transportation

Expansion Joint

In a CC pavem...

Question

In a CC pavement, with the expansion joint gap of 2.5cm, if the minimum temperature is 15 $^{\circ}$ C and maximum slab temperature in summer is 55 $^{\circ}$ C the spacing between expansion joints in metres is______(Coefficient of thermal expansion of concrete $= 10 \times 10^{- 6} /^{\circ} C$ . The joint filler can compress upto 50% of its thickness.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

100

No worries! We‘ve got your back. Try BYJU‘S free classes today!

62.5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

31.25

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 31.25
Joint filler can compress upto 50% of its thickness. Expansion in concrete is
$= 0.5 \times 2.5 = 1.25 c m$

Temperature difference
$= 55 - 15 = 40^{o} C$

$Spacing between expansion joint L$ $= δ / (100 \times α \times Δ T)$

$1.25 / (100 \times 10 \times 10^{- 6} \times 40) = 31.25 m$

Suggest Corrections

Similar questions

Q. The width of the expansion joint is 20 mm in a cement concrete pavement. The laying temperature is

20^{\circ} C

and the maximum slab temperature in summer is

60^{\circ} C

. The coefficient of thermal expansion of concrete is

10 \times 10^{- 6} m m / m m /^{\circ} C

and the joint filler compressed upto 50% of the thickness. The spacing between expansion joints should be

Q. The spacing between the expansion joints in a pavement if the joint gap is 2 cm and temperature rise is 30°C is
coefficient of thermal expansion

= 10 \times 10^{- 6} / ° C

Q. The width of expansion joint gap is 2.5 cm in a cement concrete pavement. If the temperature is

20^{\circ}

(and maximum slab temperature in summer is

54^{\circ} C

then the spacing between expansion joints will be _____ m
[Assume coefficient of thermal expansion of concrete as

17 \times 10^{- 6} p e r^{\circ} C

]

Q. The width of expansion joint gap is 2.5 cm in a cement concrete pavement. The spacing between expansion joint for a maximum rise in temperature of

25^{\circ}

C is (assuming coefficient of thermal expansion of concrete as

10 \times 10^{- 6} p e r^{\circ} C)

Q. The width of expansion joint gap is 2.5 cm in a cement concrete pavement. The spacing between expansion joint for a maximum rise in temperature of

25^{\circ} C

(in m, round off to nearest integer) is ___________. (Assuming coefficient of thermal expansion of concrete as

10 \times 10^{- 6} p e r^{\circ} C

Join BYJU'S Learning Program

The correct option is D 31.25Joint filler can compress upto 50% of its thickness. Expansion in concrete is =0.5×2.5=1.25 cm Temperature difference =55−15=40oC Spacing between expansion joint L=δ/(100×α×ΔT) 1.25/(100×10×10−6×40)=31.25 m