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1974
Test Site
Grade
Size (inches)
Lam Tei Quarry
Tovex® 550 ·
2-1/2 x 16 (with ANFO)
Shek O Quarry
Tovex® 550
2-1/2 x 16
High Island Project
Tovex® 550
2-1/2 x 16
Ma On Shan Mine
Tovex® 200
1-1/4 x 12
(all Tovex®)
(with ANFO)
(all Tovex®)
1975
Shek O Quarry
Tovex® EL825-B
2-1/2 x 16 (with ANFC)
Anderson III Quarry (Pioneer)
K. Wah Quarry
Cha Kwo Ling Quarry
Mt. Butler Quarry
Gammon
1
Tovex® EL825-B
Tovex® EL825-B
Tovex® EL 825-B
Tovex® EL825-B
Tovex® EL825-B
2-1/2 x 16 (all Tovex®)
2-1/2 x 16
2-1/2 x 16
2-1/2 x 16
(all Tovex®)
(with ANFO)
(with ANFO)
Aberdeen Pilot Tunnel
Tovex® 200
2-1/2 x 16 (all Tovex®)
1 x 12
(all Tovex®)
1976
Shek O Quarry2
Empresa Quarry (Macau)
Tovex® 800
Tovex® 800
2-1/2 x 16 (all Tovex®)
2-1/2 x 16 (with ANFO)
1977
GKL JV Contract (Mass Transit) 3
Tovex® 200
1 x 12 & 1-1/4 x 12
Shek O Quarry4
Pourvex® Extra
5" x 25 lbs.
1Harbor deepening near container terminal.
2
Demonstration for government representatives and Institute of Quarrying members. 3Caisson sinking, tunnel driving, station shaft, station open cut.
4Pourable/pumpable water gel. All Pourvex® load at expanded pattern.