Concrete crack test mold, plastic test mold 305 × 425 × 100mm conforms to the standard: "JTJ275-2000 Seaport Engineering Construction Concrete Structure Anti-Corrosion Technical Specification", according to the test piece made, observe the time when the test piece began to crack, the number of cracks , Length and width changes with time. According to the data of the initial cracking time and the maximum crack width of the specimen, it is used as the evaluation index of the concrete crack resistance.

Applicable standards for concrete crack test and plastic test 305:
"JTJ275-2000SEO promotes the technical specifications for anticorrosion of concrete structures in the construction of seaport projects"
"Supplementary Standard for Construction Quality Acceptance of Railway Concrete Engineering" (No. 160, Tiejian Construction, 2005)

Technical parameters of concrete crack test mold, plastic test mold 305:

Type A: Concrete cracked ring test mode
Preparation of test piece size: inner diameter × outer diameter × height = 305 × 425 × 100 mm
Inner diameter × outer diameter × height = 305 × 375 × 140 mm