Duratek Precast Technologies is a full service Precast Concrete operation from start to finish. We specialize in Sound Barrie ... rs, Retaining Walls, and Site Walls. We are also capable of building all different types of precast structures. We also have in-house structural engineering for non-standard applications and job specific challenges. Our precast products are designed, manufactured, installed, and warranted to meet the highest standards of quality and the current engineering specifications (FBC, ASCE, ACI, ASTM, and local governments). Concrete strengths from 5000 PSI minimum to 9000 PSI are used to tailor designs for your specific needs. read more