Development of design procedure for interlocking concrete block pavement.

Interlocking Concrete Block Pavement (ICBP) is a special type of pavement with a unique load spreading mechanism due to the discrete wearing layer. There is a lack of design procedure and design charts for the ICBP in India, as reported by the IRC SP 63 [2018. Guidelines for the use of interlocking concrete block pavement. New Delhi: Indian Road Congress] specification. The objective of the present study is to develop a design procedure for ICBP which complies Indian standards specification. The study also aimed to develop the deflection model and combined elastic modulus model for ICBP wearing layer considering the geometric properties of ICBP based on laboratory and numerical studies. The design procedure was then formulated considering the deflection of the pavement section and the rutting of the subgrade. The proposed design procedure was validated with the ICBP design section of ASCE58-10 [2010. Structural Design of Interlocking Concrete pavement for municipal streets and roadways. American Society of Civil Engineers] developed by ASCE (American Society of Civil Engineers) and ICPI (Interlocking Concrete Pavement Institute). The study finally arrived in developing a design chart and design software named NITT-BLOCKPAVE, which is programmed based on the proposed design procedure for the ICBP pavement section. [ABSTRACT FROM AUTHOR]