and in addition the Diamond Hill plant produces ready mixed concrete.
6.64 Production of aggregates increased by about 10% over the previous year but there was a small decrease in the volume of bituminous materials produced. A further marked reduction in demand for ready mixed concrete was recorded and this demand is clearly being met by other sources. The price of all products from the Government quarries remained constant throughout the year. The improvements to Mount Butler Quarry were completed and both the new plant and the haulage road were commissioned during the year.
Private Quarries
6.65 The sale of aggregates from the six contract quarries administered by the Quarries Section showed a 60% increase over the previous year as demand continued to rise. There were several increases in the price of aggregates produced by the contract quarry operators.
6.66 The Quarries Section continued to plan for additional contract quarries to meet the estimated demand for aggregates in the near future.
Laboratories
6.67 The two materials testing laboratories at North Point and Farm Road were again fully occupied during the year. New equipment was ordered to increase the soils testing capacity. Product quality at the two Government quarries was continuously monitored at the quarry laboratories.
6.68 A course in materials testing was started at the Polytechnic and several staff members are attending.
Sand Monopoly
6.69 In addition to obtaining supplies of marine sand from Mirs Bay, an opportunity was taken to dredge sand which would otherwise have been lost due to reclamation works from Tolo Harbour at Tai Po. The lower cost of dredging sand at Tai Po enabled a general reduction, from $44 to $37 per cubic metre, to be made in the price of marine sand.
6.70 In order to provide an alternative source to marine sand the sale of manufactured sand began in October at a price of $35 per cubic metre.
STAFF, TRAINING AND WELFARE
6.71 There were still unfilled vacancies in the professional and technical staff grades throughout the year, despite constant recruitment.
70
and in addition the Diamond Hill plant produces ready mixed concrete.
6.64 Production of aggregates increased by about 10% over the previous year but there was a small decrease in the volume of bituminous materials produced. A further marked reduction in demand for ready mixed concrete Was recorded and this demand is clearly being met by other sources. The price of all products from the Government quarries remained constant throughout the year. The improvements to Mount Butler Quarry were completed and both the new plant and the haulage road were commissioned during the
year.
Private Quarries
6.65
The sale of aggregates from the six contract quarries administered by the Quarries Section showed a 60% increase over the previous year as demand continued to rise. There were several increases in the price of aggregates produced by the contract quarry operators.
6.66
The Quarries Section continued to plan for additional contract quarries to meet the estimated demand for aggregates in the near future.
Laboratories
6.67
The two materials testing laboratories at North Point and Farm Road were again fully occupied during the year. New equipment was ordered to increase the soils testing capacity. Product quality at the two Government quarries was continuously monitored at the quarry laboratories.
6.68
A course in materials testing was started at the Polytechnic and several staff members are attending.
Sand Monopoly
6.69
In addition to obtaining supplies of marine sand, from Mirs Bay, an opportunity was taken to dredge sand which would otherwise have been lost due to reclamation works from Tolo Harbour at Tai Po. The lower cost of dredging sand at Tai Po enabled a general reduction, from $44 to $37 per cubic metre, to be made in the price of marine sand.
6.70
In order to provide an alternative source to marine sand the sale of manufactured sand began in October at a price of $35 per cubic metre.
taff
STAFF, TRAINING AND WELFARE
6.71
There were still unfilled vacancies in the professional and technical staff grades throughout the year, despite constant recruitment.
70
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