The study aimed at finding an alternative solution for the large volume of sludge produced in the wastewater treatment plants in Jordan. The generated quantities of sludge are expected to be around 60 tons of solid per day by the year 2025. This large quantity of sludge is related to the scarcely of land area and high population density represented Jordan sludge problem. Many researchers worldwide have been trying to explore new and suitable solutions to solve part of sludge problem. One track of these solutions is to use sewage sludge in construction field. The current study presents the usage of dry sewage sludge in the concrete mixtures and in manufacturing brick samples. . The results showed that the dry sludge retarded the strength development and has more adverse effect on compressive strength when it has higher organic content and its particles became finer. Keywords: Sludge, Concrete, Replacement, Strength.