(5) The physical properties of bitumen and the analyses of bituminous road mixes
(6) Various types of soil for identification purposes, estimation of bearing capacities, rate of consolidation and coefficient of permeability
(7) Other miscellaneous materials, such as hollow tiles, precast blocks, building bricks, gypsum plasters, wood-wool boards and concrete beams.
839
1.615
151
249. In addition, temperature changes were measured in experimental concrete road slabs with an automatic recorder, different plasticisers were tried out, investigations as to the use and probable demand for prestressed concrete were carried out and a report submitted.
250. New equipment installed consisted of a Ridgen Specific Surface Apparatus, an electrically operated compacting machine for soil compaction tests and a set of Hubbard Field Stability Testers for bituminous road mixes.
251. The acquisition of additional apparatus and new skills and techniques learnt from their use, enabled the public to benefit from a wider range of material testing.
Chief Engineer, (Acting), Assistant Chief Engineers,
49
ROADS OFFICE
A. S. WEBB, A.M.I.C.E., A.M.I.Struct.E.
J. R. WHITAKER, M.A. (Cantab.), A.M.I.C.E., A.M.I.Mun.E.
W. T. KNIGHT, A.M.I.C.E., A.M.I.Mun.E., M.Inst.Q.
(Acting), B. W. JAMES, B.Sc. (Eng.), A.M.I.C.E,
GENERAL
252. Extensive storm damage repairs in June, the major construction of new roads, the reconstruction and resurfacing of many miles of existing roads, the expansion of traffic engineering activities, the installation of further street lighting and finally a large bridging programme mark the salient activities of this office.
253. Exceptionally heavy and prolonged rainstorms in June caused widespread road damage. Several roads were interrupted with washouts, slips and landslides. This made it necessary to mobilize and divert a considerable labour force and mechanical equipment from other projects for repair work. In the restoration of these roads opportunity was taken to provide heavier pavements and better drainage and to improve where possible the widths, alignment and superelevation of carriageways.
45
(5) The physical properties of bitumen and the analyses of
bituminous road mixes
(6) Various types of soil for identification purposes, estimation of bearing capacities, rate of consolidation and coefficient of permeability
(7) Other miscellaneous materials, such as hollow tiles, precast blocks, building bricks, gypsum plasters, wood-wool boards and concrete beams.
839
1.615
151
249. In addition, temperature changes were measured in experimental concrete road slabs with an automatic recorder, different plasticisers were tried out, investigations as to the use and probable demand for prestressed concrete were carried out and a report submitted.
250. New equipment installed consisted of a Ridgen Specific Surface Apparatus, an electrically operated compacting machine for soil com- paction tests and a set of Hubbard Field Stability Testers for
bituminous road mixes.
251. The acquisition of additional apparatus and new skills and techniques learnt from their use, enabled the public to benefit from a wider range of material testing.
Chief Engineer, (Acting), Assistant Chief Engineers,
49
་་
ROADS OFFICE
A. S. WEBB, A.M.I.C.E., A.M.I.Struct.E.
J. R. WHITAKER, M.A. (Cantab.), A.M.I.C.E.,
A.M.I.Mun.Ë.
W. T. KNIGHT, A.M.I.C.E., A.M.I.Mun.E.,
M.Inst.Q.
(Acting), B. W. JAMES, B.Sc. (Eng.), A.M.I.C.E,
GENERAL
252. Extensive storm damage repairs in June, the major construc- tion of new roads, the reconstruction and resurfacing of many miles of existing roads, the expansion of traffic engineering activities, the installa- tion of further street lighting and finally a large bridging programme mark the salient activities of this office.
253. Exceptionally heavy and prolonged rainstorms in June caused widespread road damage. Several roads were interrupted with washouts, slips and landslides. This made it necessary to mobilize and divert a considerable labour force and mechanical equipment from other projects for repair work. In the restoration of these roads opportunity was taken to provide heavier pavements and better drainage and to improve where possible the widths, alignment and superelevation of carriage- ways.
45
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