Technical Indices

What happens to concrete when coated with CN2000®?

Item	Product	Standard Index	Testing Result	Testing Method
Compressive strength	CN2000B	7d≥12.0MPa 28d≥18.0MPa	38.6MPa 41.8MPa	GB-18445
Bend strength	CN2000B	7d≥2.8MPa 28d≥3.5MPa	5.01MPa 6.91MPa	GB-18445
Cohesive strength to moist application surface	CN2000B	≥1.0MPa	2.34MPa	GB-18445
Impervious pressure	CN2000B	28d≥1.2MPa	1.2MPa	GB-18445
Secondary impervious pressure	CN2000B	56d≥0.8MPa	0.9(2.4)MPa	GB-18445

Technical Indices (CN2000B®)

Item	Standard Index (GB18445-2001 CII)	Standard Criteria	CN2000 Results
Set time	initial set time/min final set time/h	≥20m ≤24hours	30 45 min
Impervious pressure/Mpa	28d	≥1.2	1.5
Secondary impervious pressure/Mpa	56d	>0.8	1.2
Bend strength/Mpa	7d 28d	>2.80 ≥3.50	4.6 5.5
Comprehensive strength/Mpa	7d 28d	≥12.0 ≥18.0	21.3 27.5
Pressure ratio of imperviousness/%	28d	≥300	300
Cohesive strength to moist application surface/Mpa		≥1.0	1.4

Technical Indices (flexible material CN2000C® + CN2000D®)

Item	Standard Index (JC/T894-2001) I	Standard Index (JC/T894-2001) II	Testing Result I	Testing Result II
Tensile strength/MPa	Non-treating ≥1.2	Non-treating ≥1.8	1.5	2.8
Break stretch ratio/%	Non-treating ≥200	Non-treating ≥80	266	117

Environmental Protection Indices

Item	Standard Index (GB/T15516-1995, HJBZ004-1994) Examined limit	Testing Result Rigid Material	Testing Result Flexible Material
Formaldehyde/(mg/m3)	0.008	Under examined limit	Under examined limit
Mercury Hg/(µ g/L)	0.05	—–	Under examined limit
Lead Pb/(µ g/L)	10	Under examined limit	Under examined limit
Zinc Zn//(µ g/L)	50	Under examined limit	Under examined limit
Cadmium Cd/(µ g/L)	0.5	Under examined limit	Under examined limit
Copper Cu/(µ g/L)	10	Under examined limit	—–
VOC/(mg/m3)	0.01	Under examined limit	Under examined limit