lecture theatres for 40 and 215 peo- ple, cach theatre having its own pro- jection room. There are also four seminar rooms for group discussions, and six lecturers' studies.
This block is similarly constructed to the smaller one, although the thea- tres are not placed back-to-back, and some of the support is provided by concrete blockwork. The two lecture theatre buildings are connected by a covered way at ground level and by a fire-escape bridge above.
Laboratories & Drawing Office
There are three main laboratories with an open paved courtyard for out- side demonstrations, including a de- monstration area for road construc- tion. Outside batching and mixing plant provides the concrete for major demonstrations.
In addition to the main laboratories there are six small laboratories, for practical work in small groups, in a lean-to structure attached to the northern laboratory. There is also a workshop for servicing the laboratory equipment and for the preparation of material for demonstrations.
The teaching drawing office takes thirty people, and is equipped with parallel motion draughting machines and reference tables. This is a com- plete innovation, allowing actual de- sign work to be included where ap- propriate.
The laboratories and drawing office are housed in two buildings construct- ed with standard 'Crendon' precast concrete 111⁄4° pitch frames spanning 35 ft. and having concrete block cavity walls and roofs of asbestos- cement sheeting.
External Finishes
The external concrete surfaces have been left exposed throughout, whether precast, in situ, or blockwork. The concrete is white, apart from the grey concrete blocks.
All the precast panels of the resi- dential blocks and the in situ concrete of these and other blocks have ex- posed, board-marked concrete sur- faces. Sand-blasted plywood, given three coats of polyurethane paint, was used to produce the finish on the pre- cast panels. After removal from the forms the panels were given a light acid wash before delivery.
Other board-marked finishes were obtained from standard softwood, left un-wrot. It was intended that all board marks should run vertically for weathering purposes but for the sake of economy the direction has been governed entirely by the simplest way of constructing the formwork.
All glazing frames are in wrot soft- wood, painted. Windows at high level are reversible for cleaning from within the residential blocks.
Roofs of buildings other than the laboratories are finished with asphalt on lightweight screeds. Covered ways, canopies and the plant room roof are
Far East Architect & Builder January, 1968
Detail of west residential block
hot asphalted but are resin-sealed against water penetration and painted white.
Internal Finishes
With the exception of the residen- tial blocks, which are papered, plaster- ed or tiled as appropriate, the con- crete is left untouched, visible as a material in its own right.
This ap-
plies also to the blockwork, with the exception of the lightweight roof slabs to the dining block, which are plaster- ed and painted.
Because walls were not to be plas- tered, all electric conduit runs had to be carefully pre-planned to ensure building-in where they would be en- tirely concealed from view beneath the exposed structural surfaces.
Heating and Ventilating
Both space heating and constant temperature hot water services are effected from the one large boiler house and low pressure hot water is pumped to all buildings on the site in pipes housed mainly in underground ducts.
The constant temperature circuit in the residential blocks is broken down into an east and west zone circuit, each serving one side of the building.
The water temperature in each zone is modulated by an outside compen- sator on an east west aspect of the building controlling a mixing valve in the heating circuit. Each zone is equipped with a time switch for pro- gramming the night set-back and morning boost settings on the control box. The pumps, mixing valves etc. are situated in a chamber below the staircases of each block.
The building is heated throughout by pressed steel panel radiators. Ex- tract ventilation is provided to the in- ternal bathrooms by means of duct- work linked to a duplicate extract fan set mounted in an aluminium housing at roof level.
The lecture theatres are heated and ventilated by means of plenum plants situated in roof plant rooms using full fresh air. The supply plant consists of inlet louvres, filter, heater battery, acoustically treated distribution duct- work and diffusers while the extract air is returned to the plant via special- ly constructed lighting fittings. The space above the false ceiling is used as an extract chamber.
Cost
The cost of the scheme, excluding landscaping and car parking areas, was about £560,000.
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L
FEHL
A A A A A A
31.710
7.950
16.444
'ADEEEY
First floor