shovelled to a third heap, at the corner of a
hose
adding from the store of a
a watery foot sufficient water only & make the expedients cling together: particular
care must be
taken to see & dispense with the use of the
role and
to
see
that
no more than sufficient
water is added. The materials, such as
breeze, etc., should be well damped before being mixed, but must not be wet on the surface when mixed.
a4
d. The floors and roofs will be constructed as follows: the area first being fixed, a timber centering will be formed beneath them consisting of bearing timbers of sufficient strength to bear the concrete without deflection, supporting boards covered with boards upon which the concrete will be laid: care must be taken that the
joints of these boards are
quite close. Upon
lightly centering the concrete will be laid and rammed with wooden beaten metal to the surface. The smaller floors may
easily be completed in one operation, but when the work has to be interrupted and cannot
be stopped at a joint or girder, the edge should be racked back and left rough to form a key for the next day's work: in recommencing, the edges of the old work should be swept and well wetted. Every
care must be taken not to
disturb the concrete whilst setting: if necessary to pass over it, planks must be laid down for the purpose. The centering is not to be disturbed for 14 days from the time of laying the concrete, which during that period must be kept wet by canvas with watering cans, inspected from time to time by sprinkling with a fine rose.