ACI Concrete Flatwork Finishing Certification questions and answers graded A+

ACI Concrete Flatwork Finishing CertificationWhen is air-entrained concrete used? - correct answer When it will be exposed to freezing and thawing cycles How is concrete sold? Sold in what units? - correct answer By volume in cubic yards or cubic meters Concrete should be completely discharged: - correct answer Within 1 1/2 hours Who should attend the pre-construction meeting? - correct answer Finisher foreman Type I Concrete - correct answer Normal or ordinary use What is type I concrete typically used on? - correct answer Slab-on grade, reinforced concrete buildings, and bridges Type II Concrete - correct answer Moderate sulfate resistance Where is type II concrete used? - correct answer Where moderate sulfate exposure from the soil or groundwater must be resisted Type III Concrete - correct answer High early strength Type III Concrete Properties - correct answer Similar to Type I, but more finely ground, quick, develops in a week or less. Type IV Concrete - correct answer Low heat of hydration