By using butt joint.

Thanks dr. abbas for your valuable answer

Dear Sir,

pl check it.

http://nptel.ac.in/courses/105101087/downloads/Lec-29.pdf

Dear Kundan, the shared file is not include the details that Dr Amjad ask. It is only shows details of joints for rigid pavement together, Not connection between rigid pavement and flexible pavement?!!!

Best regards

Dr Abbas

thanks abbas

Dear Dr. Amjad, this file may be helpful.

This connection is used on the plate with the transition between the concrete pavement with asphalt pavement.

Yes Dr Mohanned, that what i meant it in my answer previously, butt joint.

Thanks again.

Also this pdf file contains many types of pavement connections

including connection between rigid pavement and flexible pavement

http://d2dtl5nnlpfr0r.cloudfront.net/tti.tamu.edu/documents/0-5320-1.pdf

so many 

http://www.acpa.org/wp-content/uploads/2014/10/All-About-Concrete-Pavement-Joint-Design-and-Construction-FINAL-100214.pdf

Thanks Dr. Mohannad

My thought is the details of this connection are so important. It depends on the loads and the soil beneath the connection.