Tilt-Up Concrete

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Revision 2 · Aug 26, 2026 +28 −30

Corpus sync: neutrality remakes, note hygiene, datasheet relocation, transformer-split cross-refs
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---
title: Tilt-Up Concrete
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```
# Materials {toc}
+# Concrete {toc}
## Concrete {toc}
+## Panel concrete f'c is most often 4,000 psi; tall panels and high-seismic conditions warrant 5,000 psi. The casting bed concrete is a separate mix and may be a lower strength, but it must be strong enough to carry the wet panel weight plus construction live load without distress. {note}
### Panel concrete f'c is most often 4,000 psi; tall panels and high-seismic conditions warrant 5,000 psi. The casting bed concrete is a separate mix and may be a lower strength, but it must be strong enough to carry the wet panel weight plus construction live load without distress. {note}
+## Panel concrete shall attain the specified 28-day compressive strength below when tested in accordance with ASTM C39.
### Panel concrete shall attain the specified 28-day compressive strength below when tested in accordance with ASTM C39.
```datasheet
label: Panel Concrete Compressive Strength (f'c)
8 unchanged lines
```
### Casting bed concrete shall attain the specified 28-day compressive strength below.
+## Casting bed concrete shall attain the specified 28-day compressive strength below.
```datasheet
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### Aggregates for panel concrete shall comply with ASTM C33.
+## Aggregates for panel concrete shall comply with ASTM C33.
### Maximum nominal coarse aggregate size shall be selected for the panel thickness and reinforcement spacing as scheduled below.
+## Maximum nominal coarse aggregate size shall be selected for the panel thickness and reinforcement spacing as scheduled below.
```datasheet
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### Where panels receive an exposed architectural finish, aggregate and cement source shall be held constant across all panels in a single elevation to maintain color uniformity.
+## Where panels receive an exposed architectural finish, aggregate and cement source shall be held constant across all panels in a single elevation to maintain color uniformity.
## Reinforcement {toc}
+# Reinforcement {toc}
### Reinforcement is specified in detail in [[sync/concrete-reinforcement]]; the selections below establish only the configuration and grade used in panels. {note}
+## Reinforcement is specified in detail in [[sync/concrete-reinforcement]]; the selections below establish only the configuration and grade used in panels. {note}
### Deformed reinforcing bar shall comply with ASTM A615/A615M, Grade 60.
+## Deformed reinforcing bar shall comply with ASTM A615/A615M, Grade 60.
### Welded wire reinforcement, where used in sandwich panel wythes or face shells, shall comply with ASTM A1064/A1064M.
+## Welded wire reinforcement, where used in sandwich panel wythes or face shells, shall comply with ASTM A1064/A1064M.
### Wall reinforcement shall provide a minimum reinforcement ratio of 0.001 of the gross concrete area in each direction in accordance with ACI 318-19 Section 11.6.
+## Wall reinforcement shall provide a minimum reinforcement ratio of 0.001 of the gross concrete area in each direction in accordance with ACI 318-19 Section 11.6.
### The panel reinforcement configuration shall be as scheduled below.
+## The panel reinforcement configuration shall be as scheduled below.
```datasheet
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### Additional reinforcement required to resist lifting and erection stresses shall be provided as determined by the lift engineer.
+## Additional reinforcement required to resist lifting and erection stresses shall be provided as determined by the lift engineer.
### Concrete cover to reinforcement shall be as scheduled below in accordance with ACI 318-19 Section 26.6.
+## Concrete cover to reinforcement shall be as scheduled below in accordance with ACI 318-19 Section 26.6.
```datasheet
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```
## Bond Breaker and Curing Compound {toc}
+# Bond Breaker and Curing Compound {toc}
### The bond breaker is the single most failure-prone material in tilt-up: too little and the panel bonds to the slab and cracks on lift; the wrong product and it reacts with the curing compound. Compatibility between the two must be confirmed in writing by both manufacturers. {note}
+## The bond breaker is the single most failure-prone material in tilt-up: too little and the panel bonds to the slab and cracks on lift; the wrong product and it reacts with the curing compound. Compatibility between the two must be confirmed in writing by both manufacturers. {note}
### The Contractor shall obtain written confirmation from both the bond breaker and curing compound manufacturers that the two products are compatible.
+## The Contractor shall obtain written confirmation from both the bond breaker and curing compound manufacturers that the two products are compatible.
### Bond breaker shall be applied to the casting surface in not fewer than two coats.
+## Bond breaker shall be applied to the casting surface in not fewer than two coats.
### Bond breaker shall be re-applied where it has been washed by rain, otherwise disturbed, or where more than 30 days elapse before panels are cast.
+## Bond breaker shall be re-applied where it has been washed by rain, otherwise disturbed, or where more than 30 days elapse before panels are cast.
### Curing compound, where used, shall comply with ASTM C309.
+## Curing compound, where used, shall comply with ASTM C309.
### The bond breaker type shall be as scheduled below; selection shall be coordinated with the curing compound and the casting surface condition.
+## The bond breaker type shall be as scheduled below; selection shall be coordinated with the curing compound and the casting surface condition.
```datasheet
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```
## Embedded Hardware {toc}
+# Embedded Hardware {toc}
### Lifting inserts, brace inserts, weld plates, and ledger angle anchors are cast into the panel during the horizontal phase and cannot be relocated afterward; their layout is fixed by the lift and connection drawings. {note}
+## Lifting inserts, brace inserts, weld plates, and ledger angle anchors are cast into the panel during the horizontal phase and cannot be relocated afterward; their layout is fixed by the lift and connection drawings. {note}
### Lifting and bracing inserts shall be a coordinated manufacturer system with published rated working loads and a documented factor of safety.
+## Lifting and bracing inserts shall be a coordinated manufacturer system with published rated working loads and a documented factor of safety.
### Embedded weld plates and connection hardware shall be detailed on the panel shop drawings and located before concrete placement.
+## Embedded weld plates and connection hardware shall be detailed on the panel shop drawings and located before concrete placement.
### Embedded steel exposed to weather or in contact with exterior concrete shall be hot-dip galvanized or otherwise corrosion-protected.
+## Embedded steel exposed to weather or in contact with exterior concrete shall be hot-dip galvanized or otherwise corrosion-protected.
# Panel Configuration {toc}
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## Surface Finish {toc}
### Deep rustication reveals can encroach on the minimum concrete cover to the nearest reinforcing bar; reveal geometry deeper than 1 in. must be checked against the reinforcement placing drawings. {note}
+### Deep rustication reveals can encroach on the minimum concrete cover to the nearest reinforcing bar; reveal geometry deeper than 1 in. must be checked against the reinforcement placing drawings.
### Reveal depth shall be coordinated with reinforcement placement so that the minimum concrete cover is maintained at the bottom of every reveal.
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default: "7"
```

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