What is the maximum expansion or contraction allowed for the joint filler material with an initial gap of about 30 mm?
(a) 10 mm
(b) 5 mm
(c) 20 mm
(d) 30 mm
I got this question by my school principal while I was bunking the class.
This key question is from Joints Provision and Water Bars in RCC Ducts of Aqueducts in division Cross Drainage Work of Irrigation Engineering