Structural and Civil Engineering Curriculum
Module from the Structural and Civil Engineering Curriculum curriculum.
Module 5 - Concrete Design (ACI 318) · Learning Objectives · 1. Specify concrete strength fc prime (3000-5000 psi typical refinery) · 2. Select rebar: Grade 60 (fy=60 ksi) standard deformed bars · 3. Apply ACI 318 cover requirements (3" against earth, 2" exposed) · 4. Compute flexural capacity Mn = As*fy*(d - a/2) · 5. Apply ACI 350 for liquid-containing structures (tighter crack control) · Concrete Mix Design Targets
| Service | fc (psi) | Max W/C | Air % | Exposure | Use |
|---|---|---|---|---|---|
| Interior foundation | 3000 | 0.50 | 0 | F0 (indoor) | Typical |
| Exterior foundation | 4000 | 0.45 | 6% | F1 or F2 | Refinery outdoor |
| Tank ringwall | 4000 | 0.45 | 6% | F2 | Product contact |
| Acid tank containment | 5000 | 0.40 | 6% | C2 | Chemical |
| Seawater exposure | 5000 | 0.40 | 7% | S3 | Offshore |
| Sulfate soil (severe) | 5000 Type V | 0.40 | 6% | S3 | Gypsum groundwater |
Source: Structural_Civil_Engineering_Curriculum_v1.xlsx · Sheet: Concrete
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