Technical Questions

Question: What are shrinkage-compensating expansive cement and concrete?

Question: Consolidation of concrete—required or not?

Question: Acceptable concrete cracking

Question: Decorative concrete finishes

Question: Curing and curling of concrete slabs over vapor retarders

Question: Heat of hydration and the importance of controlling it

Question: When should saw cuts be made on a concrete slab?

Question: Air tests for non-air-entrained concrete

Question: What is the purpose of finishing and texturing concrete surfaces?

Question: Improving the abrasion resistance of concrete

Question: The effect of joints on the durability of concrete structures

Question: What nominal maximum sizes of aggregate are recommended?

Question: Tolerances for concrete slabs supporting steel tanks

Question: What are the primary benefits of using fiber-reinforced concrete compared to traditionally reinf...

Question: Increasing the load capacity of a slab-on-ground using an overlay

Question: Minimum concrete cover for balconies with PT cables

Question: Strength of concrete

Question: Painting the floor

Question: Popouts or popoffs?

Question: How is reinforced concrete designed using fibers instead of traditional steel?

Question: How is the shrinkage of concrete determined?

Question: Determining the cause of a crack

Question: Tolerances for floors supporting operable partitions

Question: When can the finishing procedure be started?

Question: What is curing?

Question: How is the abrasion resistance of concrete determined?

Question: Governing version of ACI 318

Question: Curing Cylinders for Acceptance Testing

Question: Slabs-on-ground

Question: Curling, shrinkage, and w/cm

Question: The importance of proper drainage

Question: Where is fiber-reinforced concrete mostly used in practice?

Question: What is the minimum fiber dosage? Is it possible to use less than the minimum dosage?

Question: Difference between a contraction joint, isolation joint, expansion joint, construction joint, an...

Question: Substantial structural damage

Question: What is minimum reinforcement for crack-width control and how is design accomplished using fiber?

Question: Two-way slabs design, ACI 318 vs. FEM

Question: Design of Slabs-on-ground

Question: Placement of welded wire reinforcement (WWR) in a slab-on-ground

Question: Vapor barriers

Question: Shear Design Provisions in ACI 318-19

Question: Cleaning slabs during tilt-up construction