Mechanical & Physical Properties of YEUNG'S G.R.P. Laminates

Testing Based on BS 2782 and carried out by the University of Hong Kong

MATERIAL Grade Specific Elastic Proof Strength Impact Specific Specific
    Gravity Modulus Tensile Compressive Strength Strength Modulus
            KJ/m2 MPa GPA
Mild Steel B.S.I 5 7.8 207 240 240 50 31 27
Aluminium Alloy HEI5WP 2.7 69 417 417 25 154 26
Stainless Steel 316 7.92 193 241 241 1356 30 34
GRP 35% 1.88 250 171 102 79.4 250 12.81


TABLE I - Indicative Figure of Mechanical Properties of YEUNG'S GRP Material compared with other construction materials


Physical Properties

Test Method Result
    Figure Unit
1. Glass Content BS 2782 Part 10 Method 1002 35 %
2. Flexural Strength / Elastic Modulus BS 2782 Part 10 Method 1005 250 N/mm2
3. Specific Gravity BS 2782 Method 620A 1880 kg/m3
4. Tensile Strength BS 2782 Part 10 Method 1003-1983 171 N/mm2
5. Compressive Strength BS 2782 Method 303B 102 N/mm2
6. Barcol Hardness BS 2782 Part 10 Method 1001 35  
7. Impact Strength BS 6206 79.4 KJ/m2
8. Flexural Modulus / Young's Modulus BS 2782 Part 10 Method 1005 12810 N/mm
9.Tensile Modulus BS 2782 Part 10 Method 1003-1983 12600 N/mm
10. Interlaminate shear strength BS 2782 Method 340A 19.6 N/mm
11.Thermal Conductivity BS 874 Part 2 - 1986 Sec 2.1 0.22 W/m deg C
12. Thermal Expansion ASTM D696-79 or similar 2.16 x 10-5 C
13. Water Absorption BS 2782 Part 4 Method 430A-1983 0.18 %
14. QCT Bilster Test 1000 Hours at 55 deg C Satisfactory
15. Water Quality (For Tanks Only) BS 6920 Pass

TABLE 2 - Manufacturer's Product Data of physical properties for YEUNG's GRP Material.

 
 
 
Architectural Claddings
Fiberglass Walkway Cover
Footbridge Cover
Decorative Mouldings
Decorative Features
Guard House - Standard size
Custom-made Guard House
Planters - Standard Size
Custom-made Planters
Grating, Channel, Ladder & Trench Cover
Water Tank
Decorative Products
Aberdeen Canopy
Academy PA Cover
Bus Sign
Egg-shaped Sphere
Jelly Fish
MOTIVOSTONE Products
Tai Yuen Street
Siu Ho Wan Sewerage Treatment Plants (DSD Project)
Ap Lei Chau Rebeautification Project
Kowloon Tong Project
Signage Project
Penny's Bay Pier and Sham Mong Road Project
Shek Pak Wan Redevelopment Phase 1