Continuously reinforced concrete pavement is a new type of concrete highway construction which grew out of the need to solve the problems involved with joints. The advantage of this type of pavement is that the cracks are so small that no sealing material is necessary to keep out the water and that the motorist is not annoyed by the constant thump-thump of conventional pavements. The problem that arises is that a continuous slab will have considerable end movement due to the expansion and contraction of the slab. This is one of the chief difficulties of using continuous pavement because the end movement makes it very hard to join it to existing structures such as bridges. To solve this problem Dr. William Zuk of the University of Virginia devised a system of anchors which would hold the end of the pavement and allow no end movement. This was to be accomplished by a system of keyways or lugs which are cast monolithically with the pavement. The result was that the cracks widths varied directly with the temperature of the pavement. It was also shone that in the section reinforced with smaller bars, the cracks occurred closer together than in the other section. It was also observed that the cracks were held more tightly closed in the section with the smaller bars.