Gabion Material
Material
1.hot-dip galvanized low carbon steel wire,
2.Zinc-5%Al or10%Al-mixed rare earth alloy coating, also named Galfan. lifetime 3times min than hot-dip galvanized gabion.
3.PVC coated , PVC coated on hot-dip galvanized steel wire and Galfan, many kinds of color
Physical property
Tensile strength: 350-500Mpa,Elongation ≥12%,according to EN10223-3
Zinc coating
1.mesh wire≥230g/M2,selvedge wire≥245g/M2,lacing wire ≥230g/M2
2.Salt mist testing: after the salt mist testing of 3000hours according to GB/T10125-1997,mass-change rate of steel wire≤2.1%,corrosion rate≤130g/M2
3.Zinc coating adhesion: fastness of zinc coating according with GB2976-88(the standard of twining testing of metal wire)
4.Zinc coating uniformity: test fours points( (Up , Down , Left , Right )，the difference between the thinnest and thickest ≤2
PVC coating testing
1.PVC Initial performance(ASTMA975-97): density1.3-1.35g/M3tensile strength≥20.6Mpa;
elasticity modulus≥18.6Mpa; shore hardness≥D50-60; attrition rate＜12%
elasticity modulus≥18.6Mpa; shore hardness≥D50-60; attrition rate＜12%
2.Salt mist testing: after the salt mist testing of 3000hours of PVC (according to GB/T10125-1997),
changing rate of density≤6%,changing rate of tensile strength≤25%,chaning rate of shore hardness≤25%,
the changing rate of attrition≤10%,mass-change rate of PVC steel wire≤1.5%,
corrosion rate≤35g/M2, mass-change rate of PVCmesh≤1.5%, penetration depth ≤15mm
changing rate of density≤6%,changing rate of tensile strength≤25%,chaning rate of shore hardness≤25%,
the changing rate of attrition≤10%,mass-change rate of PVC steel wire≤1.5%,
corrosion rate≤35g/M2, mass-change rate of PVCmesh≤1.5%, penetration depth ≤15mm