Source of Jointing Sand for Concrete Block Pavement

Abstract

Jointing sand is the main component of concrete block pavement (CBP) that promotes load transfer between blocks. Often, when sands are available from various sources, it becomes a difficult task to judge the right source of sand. The paper presents the results of an experimental program, conducted to demonstrate a quick and simple technique, for selecting the right source of jointing sand for CBP. The shearing resistance and dilatancy of three sands, three grades each, were obtained from the direct-shear test. The results thus obtained indicate that coarse and angular sand is preferable.