The unique advantages of integrally colored concrete- maintenance-free features, beauty, permanence and wearability- are appreciated by architects, contractors and building owners. Unfortunately, many of those who have been attracted by these significant advantages have tried integral colors once and, because the results fell short of expectations, swore off thereafter. In this article, we shall spotlight some of the most common problems in the placing, finishing and curing of integrally colored concrete. Preparation of the subgrade is as critical as preparation of the concrete itself. The subgrade must be uniformly graded, compacted and thoroughly moistened. These are minimum requirements. In areas where unusual soil conditions exist, a soils engineer should be consulted. Slump must be rigidly controlled when pouring colored concrete. The recommended slump for color is 4 inches, unless project requirements cal for a lower maximum. Whatever the specified slump, it is important for it to be consistent. Wide variations cause uneven drying, which again may result in surface discoloration. Finishing commences with floating the surface after the concrete has taken its initial set and all surface water and sheen have disappeared. The time it takes for this to occur will depend on climatic conditions. Nothing in the coloring product either accelerates or retards normal setting characteristics of the cement being used. Although cuing is an essential step in the production of any concrete job of good quality, this procedure requires special consideration in the case of color. A penetration sealer should always be used to ensure complete hydration. It may be applied by either spray or roller as son as the surface is sufficiently hard to prevent marring.