SMC Composite Manhole Cover
Specifications
Waterproof composite manhole cover1.Material:SMC
2.Standard:EN124,BS
3.ISO9001:2000,ISO14001:2004
4, EN124 D4
Waterproof SMC composite manhole cover / Lids/cap
Waterproof composite manhole cover adopts the latest technology of Europe and America. It is the effort of our firm cooperation with Beijing chemical industry university and Beijing institute of technology. The main material is high performance of the modified SMC sheet material, and our company has won the national patent. What’s more, we has won the high-tech enterprise certificate.
| Tested Item | Standard | Result |
| Anti-breaking strength(Mpa) | >14 | 15.5 |
| Impact toughness resistance (kg/cm2) | 95 | 97.5 |
| Tensile strength (Mpa) | >10 | 14.1 |
| Compressive strength (Mpa) | >30 | 35.58 |
| Modulus of elasticity (kg/cm2) | >1.4*104 | 1.62*104 |
| Cold-Hot Resistance measure | <0.4 | 0.34 |
| Water-absorption (%) | <1.0 | 0.26 |
| Acidity-resistance: The surface of sample is corrosion-free after soaking in the sulphuric acid solution for 24h | ||
| Alkali-resistance: The surface of sample is corrosion-free after soaking in the sodium hydroxide solution for 24h. | ||
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