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Topics In Concrete
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Frequently Asked Questions
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Search other resources on the ACI website for answers to technical questions
Question: Simplified design for reinforced concrete buildings
Question: Two-way slabs design, ACI 318 vs. FEM
Question: Guidance on designing reinforced concrete retaining walls
Question: A fiber manufacturer uses a proprietary design method. How can the validity of this method be co...
Question: How does the type of fiber (material, shape, and form) impact the design methodology used for fi...
Question: Mixture design and strength submittals
Question: How is reinforced concrete designed using fibers instead of traditional steel?
Question: What is the difference between corrected and uncorrected weight in a concrete mix design?
Question: What is minimum reinforcement for crack-width control and how is design accomplished using fiber?
Question: Slabs-on-ground
Question: Curing Cylinders for Acceptance Testing
Question: Tolerances for floors supporting operable partitions
Question: Design of Slabs-on-ground
Question: Acceptable concrete cracking
Question: Shear Design Provisions in ACI 318-19
Question: Governing version of ACI 318
Question: Design Properties of Lightweight Concrete
Question: Strength of concrete
Question: How is the required strength selected, measured, and obtained?
Question: ACI code for evaluating existing buildings prior to repair
Question: Reinforcement termination in wastewater concrete containment
Question: Standard on detailing of concrete reinforcement
Question: Is chiseled concrete a common technique for facades
Question: Knowledge of concrete properties
Question: What is the intention of the ACI 318 Building Code?
Question: Who selects the requirements for concrete for a project?
Question: If time is not available for preliminary tests, how can the desired strengths be ensured?
Question: Are load tests on completed structures ever employed?
Question: Minimum thickness of bearing walls
Question: Substantial structural damage
Question: Punching shear check for shear wall foundations
Question: Curing and curling of concrete slabs over vapor retarders
Question: Are stiffness modifiers mandatory in the ACI 318 Code?
Question: How do fibers affect the workability of concrete? Do fibers require additional water for placement?
Question: How does the testing methodology for fiber-reinforced concrete differ from that of traditional c...
Question: The effect of joints on the durability of concrete structures
Question: Reinforced concrete vs. prestressed concrete
Question: How do the code requirements get to the contractor?
Question: What nominal maximum sizes of aggregate are recommended?
Question: Could a sulfate-resisting cement and slag cement be combined and used for concrete exposed to su...
Question: Increasing the load capacity of a slab-on-ground using an overlay
Question: What is calcium-aluminate cement?
Question: Load factors used in the 1963 building code
Question: Shear reinforcement for beam-column connections
Question: Painting the floor
Question: Determining the cause of a crack
Question: The intent of the 0.8 factor in Section 17.7.1.2.1 of ACI 318-19
Question: Tolerances for concrete slabs supporting steel tanks
Question: Chloride concentration in soil and exposure classes
Question: Minimum concrete cover for balconies with PT cables
Question: Why use fiber-reinforced concrete?
Question: What is the difference between synthetic microfibers and macrofibers?
Question: How should the appropriate fiber be selected for a specific application, and how is fiber dosage...
Question: Will fiber-reinforced concrete have a hairy appearance?
Question: Embedded metals other than reinforcing steel