Use Green Island Cement
for
Constructural Work of Every Description.
HOW GREEN ISLAND CEMENT IS MADE
Green Island Cement is manufactured from hard limestone and, clay. It is necessary that these materials should be finely ground in order that they may come into intimate contact with one another in the burning process.
The finely pulverised materials are mixed in a certain definite proportion, roughly one part of clay to three of limestone, and are fed to the Rotary Kilns.
In these kilns they meet the hot gases and flames generated by pulverised coal blown in at the other end of the kilns, and after various. chemical actions, have taken place, they combine to form Portland Cement Clinker.
The Clinker is ground down with a small percentage of gypsum to regulate the setting time, and Green Island Portland Cement is thus produced.
Although sounding so simple, in reality the process is an intricate combination of mechanical, physical and chemical operations, needing great skill and care. Nothing but constant and accurate supervision will yield the results. so well-known with Green Island Cement, namely, strength, uniformity and reliability.
USE GREEN ISLAND CEMENT
Issued by the
GREEN ISLAND CEMENT CO. LTD,
2ND FLOOR,
EXCHANGE BUILDING,
HONG KONG DAILY PRESS, SATURDAY, AUGUST 8, 1931.
ENGINEERING AND BUILDING
NEW TOWNS IN SIBERIA.
GERMAN ARCHITECT'S BIG COMMISSION,
RICHES OF THE KUZNETZK BASIN.
The German, architect Ernst May was commissioned by the U.S.S.R. in September, 1030, under the Five-year Plan to rebuild old towns and lay out new cities in Russia, and was allowed to choose a staff of twenty amistants to accompany him. The follow- ing are extracts from three articles by Ernst May, which were. published in the Frankfurter Zeiting, and are translated by Maria Petric
PLANNING ON THE GRAND SCALE.
ویر
DIESEL ELECTRIC SUCTION DREDGER.
BUILT AT-BREMEN FOR BORDEAUX.
AFLOAT.
A POWER STATION od on the roof of the engine house; it is filled by a Sulzor contrifugal pump driven from the shaft of the enging the pump runs at 2,040 rova. per min. and delivers 60 gali, per min. An electricaly driven pump cf the samo sise is provided as standby. The exhaust pipe of the engine is led to a silencer cut- side the engine room, from whors the exhaust gases pass to the at-
UNUSUAL PROBLEM SOLVED
AT BANJERMASIN.""
SULZER ENGINE IS INSTALLED
ON PONTOON,
A rather unusual method of ox.mosphere through a pipe extend- tending an existing electric powering above the roof. Fus] is stored sintionisrepresented by that in two bunkers under deck; and in sta raised from there into the daily
adopted for the power sta The authorities of the port of tion of an electric supply com.service tank in the unging house by Bordeaux have recently taken de-pany in Banjarmasin. Instead of monne of a handpump. From the livery of the diesel electric suction installing a further set in the con-daily service tapk, the fuel flows dredger Pierre Lefort, which has tral station itself, the company has under gravity into the tanks, which been built by the Deschimng at placed the new set on a pontoonart fitted with float valves, and their Bremen yard under the Dawes specially built for the purpose.
from them to the fuel pumps. ‹ plan. The principal "dimensions | Local circumstances necessitated
this unusun so when the company existing power station in Banjer masin, it could not obtain permis sion from the authorities to build
are
Length
Depth Draught
Breadth
Speed, loaded
330 ft.
B4 ft.
19 ft. 3 in ... 10 knots,
because,
The Pontoon. The pontoon was built by the
As the Droogdok Maatschappij," Soern-
baja, and is 82 ft. long and 26 ft. broad, with sides five it, high, and a draught of five ft. The deck is vessel is raised at the bow and rectangular; the bottom of the. stern in order to facilitate towing,
Russia is only beginning to open taken close up to the offices which up the Kuznetzk Basin in the Altai have been prepared for us. We be The vessel is fitted with two an extension to the station,al Mountains of South Siberin, which gin by inspecting the whole place. M.A.N. engines developing 9,400 though it was absolutely required. holds enormous quantities of coal, We find innumerable barracks asb.h.p. and driving the propeller The authorities withheld permission gold, silver, copper, zing, etc. It is temporary quarters for the work impossible for us to realise the men, but there is also a hospital, difficulties which stand in the way an ina, a small town of engineering of exploiting all this mineral, works, etc. We visit the coalmines wealth, the distances to be over and inspect the enormous water- come, the railways, roads, and works by the river. We now have canals required, and the long win to decide on the plan of this town ters when the cold is so intense that which has to be completed by 1939 all work comes to a standstill for Land' is to hold about 100,000" inhabi- months at a time.
tants. We had three days to do it Novosibirsk
is the Siberian in. We were obliged because of the capital, and owes its quick growth lio of the land to divide the town partly to the fact that there the into two chief parts-one, for about railway opening up the Kuzuetak 70,000 inhabitants, had to be separ- "district, as well as the Turksib Rail.ated from the industrial part by a way. from Turkestan to Siberia, broad band of green in the river join the Traasiberian Railway. plane, the other had to be placed This town has already a great many on the flat top of a hill as the banka
shafts through electrical transmisuse of the bad marshy ground and the side walls have in alight sion gearing, the same generators on which the station is built. They slope. The pontoon is of the usua supplying the current to the dredg. were afraid of dangerous vibrations frame construction with two con- ing plant.
being set up, since trouble had n-tinuous side keca Inside the en- ready been experienced in Banjer gino room, in the direction of the the station taken over by the com- musin from the engines working in axis of the Dical aot, the sida kec.s aro constructed as longitudinal bulkheads reaching up to the level Under these circumstances there.
of the engine house floor. In addi- only two possibition re-tion to that, between these longitu
r.p.m
.
pany.
were
dinal bulkheads, there are another two constructed as foundation for
removable
modern buildings and can be call, and the other country were too steep main, generating set drives the probe incurred by the great distanco Pontoon, ia Tald with res
ed a modern city.
to build on.
ordered from Siemens Schuckert
The electrical equipment was Werke, who sub-let the contract to the Société Ais-Them, Paris. The equipment includes two main älter-
40 kw., at 170 r.p.m., the pressuri nating current generating acts of waining to. the electricity being 523 volts; two exciters of 190 to erect
company: they had rither kw., also running at 170 r.p.m., and at a considerable distance from the the Diesel engine; they extend over
the additional plant having a pressure of 20 volts; two existing power station, or to in- whole length of the engine, alternating-current 825 volt motors stall it on board a pontoon. The house and are only suppressed in of 1,140, s.h.p. each, running at 200 directors rejected the first alterna- way of the pit for the generator. tive because of the great diffici The Boor in the engine house, which Under normal conditions each ties and the high coats which would
lies deaper than the
the deck of the A nearly finished road. From here we set out for our cutting badly through the land had peller on the corresponding side of from the principal consumers and chequer plates, whilst the pontoon destination the sites of the industo be altered and turned into a base the vessel, but for slow running the existing plant, and decided otherwise bas an ordinary steel trial towns planned in the Eur-for streets running on from it at
the two motors can be driven by after thorough investigation to deck On the deck of the pantaan, double bollards are fitted at the netak district. The building of regular intervals and feeding the either of the two generators. It build a fanting power station. these towns stands second only town. The railway had to be raised is also arranged that the electric
lic and stern, two at each end, to the Magnitogorsk programme so as to avoid occasional flooding motors of the dredging pumpe can
for mooring the ship to land and (which is to create the second by the river, and a system of drain-be driven from one of the main chinery for the novel type of power engine house, is also built of steel. The company crdered the ma- for fixing the tow ropes. The greatest industrial district in the
being controlled on the Ward-terthur, Such a power station res so that there is a free passage
pump motors station from Bulzer Brothers, Win In the dower part it is 18h it broad, world) in the Five-year Plan. We first reach the chief place, Kus-
Leonard system.
quies that the set shall run abac.uce both sides on deck. The netzk, situated in a valley several
The dredging work is carried out ly free from vibration, a con- part of the engine room is nar- miles wide. Already from a dis
by means of two lateral suction dition at once fulfilled by the tance we can see the signs of great
pipes. The wells provided for the choice of
rower and has four openings on Sulzer six-cylinder each side and one opening at the building activity. A whole group
reception of the dredged material four-cycle Diesel engine, which has of smelting furnaces is already
have a capacity of 2,000 cub: m.,ne free outer forces or moments built, others are being built, as are
and can be filled with sand within Tho, engine works with direct in also enormous electricity works.
na hour. Dredging by suction" has jection of fuel and develops 600 already been experimentally tried bhp. at 250 rv. per min. This ergy gonerated, capes supported For transmitting the electric en by the Bordeaux authorities with now light type of engine is often by floats load from the pontoon te the dredger La Coubre, and has adopted for stationary purposes, the switch gear in the power house proved very efficient.
silop it is very soonomical in fuel on twice this bine poochanie, is
The New Kunstek.
We are taken to the general offices and discuss plans with energetic leaders. In a short while we get the impression of being in touch with well-organised work and with men who know what they are aim ing at. Our railway carriage is
COLORCRETE'
ANTI-GLARE
COLOURED
SNOWCRETE
WHITE
FERROCRETE RAPID HARDENING.
PORTLAND CEMENT
SOLE AGENTS
STOCKS CARRIED.
DODWELL & CO., LTD.
[QUEEN'S BUILDING
HONG KONG
28021:
age and canalisation devised for the
whole valley,
.1
generators, these
Sulzer Engina.
on
upper
end to admit air for the Diesel engine. A skylight is fitted above the angine,
?
F
The trials of the Pierre Lefort, and lubricating oil consumption umleient for which were carried out at the aid has proved to be very reliable, lez, mouth of the River Gironde, have in service even when running “con- fully confirmed the efficiency and tinuously under severe conditions; suitability of the electrical equip-it is also very simple to attend and ment fitted to this interesting maintain. For erection on the pon-
vessel.
smaller ones are planned here along the Tom River. A town for 170,000 people is to be erected on both sides
•
ce on board.
The same night our carriage was attached to a cool train and we were taken to the nearby Proko viesk. This town stands on coal and will have to be pulled down in the course of the next few years, and the new town, to hold 120,000 inhabitants, will have to be trans- planted a few miles away to hills ground. The formation of the coun. try, three long heights running off from the highest point on which the town will have to be, favours original and interesting planning, Round the highest point the central civic buildings will be built, and the ribbon-like quarters of the town will be fitted into the wooded slopes. Planning on the Sita. Loninsk, the next town, is a more difficult proposition. Valuable coal is everywhere, often in six or seven sening one above the other. Where there is un conl the land is so steep and ravined that no building is possible. On the higher plateau site free from coal has been found, but it will only hold a quarter of the population which the town is to hold. We search "for another suitable site, but the valley proves you leave the path only a step while frame. The cams are keyed to the course, be necessary to equip the impossible, lying so low that on changing over you sink into snowshaft and operate the valves in the fenting power station with com foggy days it would be enveloped in up to your hips. We are given the and push rods. Further tha, fue plete switch gent, so that the die
usual method by means of Imks black smoke, and there are floods workroom of the local Soviet propamps are fitted on the camshaft tribution of energy can be controll in spring. Also the building of sident, and in three days we finish trough, so that they can be drivened from the pontoon. If in the bridge would be too expensive the plan of the town in broad out plungers are ground into their course of time, the necessity for a
direct from the camshaft, · Tho, Thus we are driven to a plan which line with the help of the local cylinders, and fuel delivery is re- permanent power station arises, an places the civic buildings and the technical experts, who give us all gulated from a ball governor by crdinary plant can be built on land heavy-four-storeyed tenements out the information we want..
meana of the, pump valves. The and the floating power station re- the high site which is free from
speed of the engine can be varied moved for use elsewhere. Such t Again and again we feel how by 5 per cent. by adjusting the plant is particularly suitable for coal. The rest of the buildings will much more satisfactory town-plane length of one of the scvernor rods, supplying energy for work in con- have to be low wooden barracks. As ning is when done on the actual landed fuel valves, and fuel is in in thinly populated districts, since The pump pressure ifte the spring-nection with the regulation of rivere the cqul seams lip doop, with proper site instead of at & green tablejected into the combustion chamber the work can then be carried out care in mining these buildings thousands of miles away. We have through holes in the nozzle plate, at once without transmission lines
should not suffer, and could even be moved easily should the need
The plant has proved very satis factory and works absolutely free from vibration under 4.1 conditions tocu, the bedplate had to bo some of service. A special advantage of what modified: It is connected by such a floating power station is the which is totally enclosed and fitted power stations on land not far from strong tie rods to the box frame, possibility of using it for assisting
with oil-tight doors, to all forced the water at many different places. lubrication to be adopted. The A floating power station can also of the river. Again we are driven the frame and have special vastused with advantage in places
cylinders are erected separately round, this time in a Red Army iron liners which are free to expand where the future development of wagon, over the river ice into the downwards. The cylinders are pro- power requirements is uncertain wooded bills of the other bank, working pistons, which are of the and would therefore make the con- vided, with water cocling, but the where 40,000 people will have to be trunk design, are uncooled housed. As the wagore cannot pro- camshaft, which is driven from the tion on land rather a speculation. The struction of a permanent power sta ceed we continue in sledges, and if is located in a trough cast on the
crankshaft through spur gearing. In the latter case it would, of
Further Details
L
which are arranged in such a way to decide here as quickly as at Kuz- that the fuel is finely pulverized having to be erected over long dis
tarices, ska notak. Dar epidiascope is put up, and well distributed throughout the
When opening up fresh districts. At Belovo, too, a new town for and with the help of coloured combustion air.
to cultivation, work which in 40,000 people in planned, but we diagrams the plan of about fifty
most cases is started from the rivers A gearwheel pump driven from such a movable source of power members of the local Soviet, indus the main shaft draws the lubricat makes it possible to introduce mo have to postpone further planning because the preparatory, surveying trials, doctors, etc, is discussed ing oil through at filter from the chinery immediately and thus is insufficient,vtal
The plan is accepted unanimously, sump in the bod-plate and forces spcad "up the work of opening up Next day we reach Scheglovak, and the first section of it is drawn it, at a pressure of seven to 14 b. the territory
per sq. in througli an oil cooler Already the possibility of mor We find old and new cokeworks and UP forthwith. The payor, an able into the oil piping leading to the ing the power station to another big electricity works being built and energetic inun, returns with us crankabaft gudgeon pins and place to give temporary: assistance German engineers working there to Novosibirsk and Moscow to fetch Enormous in iphopcemary permits and chemical works and other from the Siberian and the Central
(Contis ued on seri Column)]. | Government.
80 shaft. A lubricating ap has been ado-o of, siner, inst paratus driven from the governor as it was ready for service and be shalimis, provided falubricating-fore being used in Banjera the cylinders. For coeling the cyline was put to work in Semarang in der under atmospheric pressure, afrder to supply electric cooling water tank has been erest | district-Far Eastern
that