重要公告 (Announcement)

Saturday, October 30, 2021

2022 ACI FRC Bowling Ball Competition

https://www.concrete.org/students/studentcompetitions/frcbowlingballcompetition.aspx

What is involved with this competition?

Generally, the teams follow the rules, meet the schedule, and compete at the convention. Teams design and construct bowling balls from a fiber-reinforced concrete (FRC) mixture. The types of FRC mixtures permitted for the competition are defined in the competition Rules. Before the competition, teams have several schedule deadlines to meet for registration and other paperwork submittals, as well as design and construction of their bowling balls. This process typically starts 5 to 6 months before the convention competition. Teams must attend and meet the convention schedule to compete with two bowling balls—one for bowling and the other for destructive testing.

What is the objective of the competition?

The objective of this competition is to demonstrate the behavior of fiber reinforcement within concrete, to gain experience in forming and fabricating a fiber-reinforced concrete element, and to encourage creativity with compliance in engineering design and analysis.

Who can participate?

Students currently enrolled in a home school, high school, or an undergraduate college or university program are eligible to participate. Students from a qualifying school form a Team. A Team must Register on the ACI website to compete in the competition. Teams compete at the ACI Concrete Convention against themselves and other qualifying teams. ACI does not require but does encourage ACI chapters, schools, or locations to hold their own competitions to select teams for representation at this international competition.

When and where is the competition?

This competition is typically held every 2 years, and the next competition is scheduled for Sunday 27 March 2022, during the spring ACI Concrete Convention in Orlando, FL. Teams are encouraged to arrive at convention no later than Saturday so that they are prepared for the competition on Sunday.

What happens if the in-person convention is cancelled?

If the 2022 Spring convention becomes virtual, the competition will be postponed to the 2022 Fall convention, which would change the schedule and registration. If cancellation does occur, more details will be provided at that time.

How is the competition judged/scored?

There are two categories of prizes for this competition: Bowling Ball Design and Bowling Ball Analysis. Both prize categories require knowledge and experience about concrete, fiber reinforcement, material behavior, and bowling. For each category, scores are awarded in each of these following tests: specifications, mass, diameter, bowling, and toughness. Each of these test scores are combined and converted within each category to give each team a ranking.


Tuesday, July 6, 2021

(工材) ACI.318.鋼筋性質相關規範

20210706

種類

CNS

ASTM

鋼筋

CNS 560 鋼筋混凝土用鋼筋

ASTM A615 Standard Specification for Deformed and Plain Carbon-Steel Bars for Concrete Reinforcement

碳鋼

ASTM A706 Standard Specification for Deformed and Plain Low-Alloy Steel Bars for Concrete Reinforcement

低合金鋼

ASTM A996 Standard Specification for Rail-Steel and Axle-Steel Deformed Bars for Concrete

Reinforcement

軌鋼、軸心鋼

ASTM A1035 Standard Specification for Deformed and Plain, Low-Carbon, Chromium, Steel Bars for Concrete Reinforcement

含鉻鋼筋

擴頭鋼筋

ASTM A970 Standard Specification for Headed Steel Bars for Concrete Reinforcement

鍍鋅鋼筋

CNS 14771 鋼筋混凝土用熱浸鍍鋅鋼筋

ASTM A767 Standard Specification for Zinc-Coated (Galvanized) Steel Bars for Concrete Reinforcement

塗佈環氧樹脂之鋼筋

ASTM A775 Standard Specification for Epoxy-Coated Steel Reinforcing Bars1

ASTM A934 Standard Specification for

Epoxy-Coated Prefabricated Steel Reinforcing Bars

雙層塗布鋼筋

ASTM A1055 Standard Specification for

Zinc and Epoxy Dual-Coated Steel Reinforcing Bars

不銹鋼鋼筋

ASTM A955 Standard Specification for Deformed and Plain Stainless Steel Bars for Concrete Reinforcement

銲接鋼線網及鋼筋網

CNS 6919 銲接鋼線網及鋼筋網

ASTM A184 Standard Specification for Welded Deformed Steel Bar Mats for Concrete Reinforcement

(竹節鋼筋網)

ASTM A1064 Standard Specification for

Carbon-Steel Wire and Welded Wire Reinforcement, Plain and Deformed, for Concrete

(碳鋼銲接鋼線)

ASTM A1022 Standard Specification for Deformed and Plain Stainless Steel Wire and Welded Wire for Concrete Reinforcement

(不鏽鋼銲接鋼線)

ASTM A1060 Standard Specification for

Zinc-Coated (Galvanized) Steel Welded Wire Reinforcement, Plain and Deformed, for Concrete

(鍍鋅銲接鋼線)

ASTM A884 Standard Specification for Epoxy-Coated Steel Wire and Welded Wire Reinforcement

(環氧樹脂塗布銲接鋼線)

ASTM A82 Standard Specification for

Steel Wire, Plain, for Concrete Reinforcement

(withdrawn, replaced by A1064)

(光面鋼線)

ASTM A496 Standard Specification for Steel Wire, Deformed, for Concrete Reinforcement

(withdrawn, replaced by A1064)

(麻面鋼線)

ASTM A185 Standard Specification for Steel Welded Wire Reinforcement, Plain, for Concrete

(withdrawn, replaced by A1064)

(光面銲接鋼線)

ASTM A497 Standard Specification for Steel Welded Wire Reinforcement, Deformed, for Concrete

(withdrawn, replaced by A1064)

(麻面銲接鋼線)

鋼纖維

CNS 12892 纖維混凝土用鋼纖維

ASTM A820 Standard Specification for Steel Fibers for Fiber-Reinforced Concrete

預力鋼腱

CNS 3332預力混凝土用鋼線及鋼絞線

ASTM A421 Standard Specification for

Stress-Relieved Steel Wire for Prestressed Concrete

(鋼線)

ASTM A416 Standard Specification for Low-Relaxation, Seven-Wire Steel Strand for Prestressed Concrete

(七線鋼絞線)

ASTM A779 Standard Specification for

Steel Strand, Seven-Wire, Uncoated, Compacted for

Prestressed Concrete

(密集式鋼絞線)

CNS 9272 預力混凝土用鋼棒

ASTM A722 Standard Specification for High-Strength Steel Bars for Prestressed Concrete

(高強度鋼棒)

天氣與交通 (local weather and traffic)

TAIPEI WEATHER