Page 51 - SMM2 eBOOK

G.18 Key blocks, corbels, bases and cappings

Key blocks, corbels, bases to pilasters, cappings to pilasters and cappings to isolated piers shall
each be enUmerated separately stating the size.

G.19 Pavings

Brick pavings shall be given in accordanoe with Section S.

Brickwork in connection with boilers

G.20 Boiler-seatings and boiler flues

l. Boiler-seating and boiler f ues together with their associated labours shall be given in
detail in accordance with the relevant clauses under the appropriate heading. Firebrick
and fire claywork shall each be so described.

2. Boiler-seating blocks and curved flue-covers shall each be given separately in metres
stating the size. Pieces of irregular shape shall be enumerated stating the size.

G.21 Chimney shafts

Chimney shafts together with their associated labours shall be given in detail in accordance with
the relevant clauses under an appropriate heading stating the number, the size on plan, the
shape and the overall height. Chimney shafts of different shapes and heights shall each be
given separately. Those required to be built from outside scaffolding shall be so described.

Blockwork

G.22 Generally

1. Particulars of the following shall be given:

a. Kind, quality and size of blocks. Purpose-made blocks shall be so described.
b Surface finish of blocks.
c Type of bond in the case of glazed blocks.
d. Composition and mix of mortar for bedding, jointing and pointing.
e. Method of pointing.

2. Measurement of walls shall be taken between attached piers. Piers, defined as walls
having a length on plan not exceeding four times the thickness, whether attached or
isolated (except where caused by openings) shall be measured as the combined
thickness of the wall and the pier.

3. Deductions of blockwork for string courses, sills, lintels, plates and the like shall be
measured as regards height to the extent only of the full block courses displaced.

4. Pointing shall be given in description of the work on which it occurs.

5. Glass blockwork shall be given in accordance with clause G.27.

6. Blockwork designed to be built without cutting blocks shall be given separately.

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