Page 44 - SMM2 eBOOK

F.39 Ducts, grooves and pockets (cont’d)

3. Vents shall be enumerated.

4. Filling of anchorage pockets shall be enumerated stating the hnish of any exposed
surface.

F.40 Prestressed tendons

1. Prestressed tendons shall be enumerated stating their length, number of wires, ultimate
strength and size of wires, type of core and sheathing. The lengths of post-tensioned
tendons shall be measured to the outer faces of anchorage. The iengths of pre-tensioned
tendons shall be measured to the surfaces of the concrete members. Descriptions shall
state whether tendons are for pre-tensioned or post-tensioned members.

2. Anchorages shall be enumerated stating their components.

Contractor-designed construction

F.41 General

1. Construction which is to be designed and carried out by the Contractor shall be given
under an appropriate heading. Reinforcement and formwork shall be deemed to be
included with the items.

2. Where the Contractor's choice of design is limited such limitations shall be stated.

3. Particulars shall be given of any tests of the materials and of the finished work.

4. Work shall be measured as carried out but no deduction shall be made for voids not
exceeding 0.10m2

F.42 Slabs

1. Suspended slabs (measured over all bearings and grouped together) shall be given in
square metres stating the length of the span (measured in the clear between supports) in
stages of 300mm except that spans not exceeding 2.00m long may be grouped together
and so described. In the case of cross-reinforced construction the length and width of the
slab (measured in the clear between supports) shall be stated in stages of 300mm. Details
of the super-imposed loads for which the slabs are to be designed shall be given in the
description. Solid concrete in hollow-block construction and filling ends of hoilow~blocks
shall be deemed to be included with the items. Slabs shall be grouped and described as
follows:

a. Slabs not connected to other slabs.
b. Slabs oonnected at one end to the other slabs.
c. Slabs connected at both ends to other slabs.
d. Cross-reinforced siabs oonnected on two adjacent edges to other slabs.
e. Cross-reinforced slabs oonnected on three edges to other slabs.
f. Cross-reinforoed slabs oonnected on four edges to other siabs.

2. Classification of slabs shall be as follows:

a. Horizontal.
b. Sloping not exceeding 15° from horizontal.
c. Sloping over 15° from horizontal,

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