دراسة وحدات الخرسانة سابقة الصب

Abstract

Abstract: This research presents a comprehensive analytical and technical study of Precast Concrete Units, identifying them as a leading structural solution within the modern construction landscape. The study aims to evaluate their mechanical and structural properties while conducting a precise technical and economic comparison with traditional cast-in-place concrete. The theoretical framework includes an in-depth analysis of the essential components of concrete, beginning with the physical and chemical properties of aggregates and cement. It further explores the fundamental role of concrete admixtures and polymers (both natural and synthetic) in enhancing structural performance and durability. Furthermore, the research reviews the principles of concrete mix design to ensure a balance between economic efficiency and design quality. In the practical application, the research focuses on a case study for designing a simple precast concrete support beam, including load and resistance calculations, material quantity estimation, and projected costs. The results indicate that precast concrete units excel significantly in terms of time feasibility and achieve superior quality control due to manufacturing in a controlled environment. The research concludes that adopting precast concrete in Public housing project is economical and sustainable .