ICC Reinforced Concrete SI case studies
ICC Reinforced Concrete SI · Put your knowledge to work in context.
The Reinforced Concrete Special Inspector credential is an ICC certification for professionals who inspect reinforced concrete construction for code compliance. It is aimed at building inspectors, special inspectors, testing technicians, and construction quality personnel who verify reinforcing steel placement, concrete materials and placement, and conformity with approved plans and code provisions. The ICC Reinforced Concrete SI case studies are 5 cases and about 3,621 words.
1Honeycombing and Low Cover at a Lateral Beam-Column Joint
During post-pour inspection of a 500 mm × 500 mm column and 400 mm × 600 mm beam joint at Level 3, the inspector finds a honeycombed area 300 mm long and up to 150 mm deep on the beam soffit within 200 mm of the column face. A 10M stirrup is exposed over roughly 150 mm.
770 words, about 4 min2Low Cylinder Breaks and Core Acceptance on a Two-Way Slab
A 300 mm thick two-way slab with fc' = 35 MPa is placed from a single ready-mix truck. Six 150 mm × 300 mm cylinders were cast, and the 28-day breaks from four sets, each reported as the average of two cylinders, are 36.5, 34.0, 30.0, and 32.0 MPa.
685 words, about 3 min3Tendon Elongation Outside Tolerance on a Post-Tensioned Flat Plate
On a post-tensioned flat plate, a 24 m long unbonded tendon made from 15.2 mm diameter, 1860 MPa low-relaxation strand is stressed from one end. The approved stressing schedule gives a jacking force of 208 kN and a computed elongation of 165 mm after allowance for wobble and anchor set.
730 words, about 4 min4Beam Reinforcement Does Not Fit the Plan Width
The structural plan for a 300 mm wide × 600 mm deep perimeter beam calls for five 25 mm diameter longitudinal bars in one layer, 10 mm stirrups, and 50 mm clear cover because the beam is exposed to weather. The architectural plan shows a 250 mm wide beam at the same gridline to align with a curtain-wall mullion.
736 words, about 4 min5Hot-Weather Slump Loss and a Request to Add Water at the Site
At 14:00, with an ambient temperature of 38°C, a 6 m³ ready-mix truck arrives with a specified slump of 100 ± 25 mm and a specified maximum concrete temperature at placement of 35°C. The truck has been in transit for 50 minutes.
700 words, about 4 min