Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants
NORMA vydána dne 1.9.2025
Proč Redline?
Redline představuje rychlý a snadný způsob jak porovnat všechny změny mezi aktuální platnou normou a předchozí verzí.
Díky redline se okamžitě dozvíte o:
Ušetřete si čas i starosti!
Díky Redline již nebudete muset ztrácet čas zjišťováním, co se v nové normě změnilo. Redline Vám ušetří čas a zaručí, že se o změnách v normě dozvíte.
Cena
Pokud si zvolíte možnost "Platná norma + Redline", pak dostanete oba dokumenty! A co je nejlepší, cena Platné normy + Redline je pouze o něco málo vyšší než cena samostatné platné normy.
Designation standards: ASTM C990/C990M-25
Publication date standards: 1.9.2025
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: American technical standard
Kategorie: Technické normy ASTM
This specification covers joints for precast concrete pipe and box and other sections using preformed flexible joint sealants for use in storm sewers and culverts which are not intended to operate under internal pressure, or are not subject to infiltration or exfiltration limits. Joint material used in horizontal applications is intended to prevent the flow of solids through the joint. The acceptability of the pipe joint and sealant shall be determined by the results of the physical tests prescribed. Bitumen sealants shall be produced from asphalts, hydrocarbon resins and plasticizing compounds reinforced with inert mineral filler and shall contain no solvents. Butyl rubber sealants shall be produced from blends of butyl rubber and refined hydrocarbon resins and plasticizing compounds reinforced with inert mineral filler and shall contain no solvents. The joint design shall consist of a bell or groove on one end of the section and a spigot or tongue on the adjacent end of the joining section. The different test methods for the determination of the composition and physical properties of bitumen or butyl sealants are presented in details. The sections shall be tested hydrostatically in vertical alignment and a sufficient number of sections shall be assembled in straight alignment.
Keywords:
concrete manholes, concrete pipe, flexible, joints, sealants,, ICS Number Code 23.040.50 (Pipes and fittings of other materials),91.100.30 (Concrete and concrete products)