NIQS – TRAINING ON BESMM4 FOCUS: TO UNDERSTAND THE DIFFERENCES BETWEEN BESMM3 AND BESMM4 AS IT WOULD BE ASSUMED THAT THE TRAINEES ARE CONVERSANT WITH OPERATIONS OF BESMM3 Generally: BESMM3 BESMM4 Adopted the format of SMM7 of 9 columns - Integration of NRM2 but retained the 9 columns Work sections retained same identity in both - work sections identified separately for both Building and civil/industrial engineering building/ civil, industrial engineering e.g. D-Groundwork, E-Concrete work etc. E.g. 2A-2Z; 2AA-2AB; example 2F-2H concrete. - Adopts CESMM4 as per civil/industrial Engineering works This presentation will handle part 2 (civil, industrial Engineering works and the like) section 2N – 2V, that is, structural Metalwork, miscellaneous metalwork, Timber, piles, piling Ancillaries, Roads and Paving Railway Track Construction and Tunnel. Other sections involved in part 2 will be handled by other colleagues.

G-Metalwork/Timberwork BESMM 4 2N- Structural Metalwork/Miscellaneous Metalwork Miscellaneous metalwork, scaffolding structural metalwork, timber, lumped together under the above heading. - Extensive integration of CESMM4 (current). Hence 2A-2Z/2AA &2AB -Structural metal work/ miscellaneous metal work together Fabrication as members (main bridges, subsidiary and framing) Materials procurement/ delivery to site taken as different item from erection for bridges frames and others Farming fabrication/ framing erection following the rules in part one(building works) Bridges bearing materials-Elastometric and propriety added(page414) Bridge bearing 6 items - Bridge bearing 6 items - Uncovered Tanks stated vol. stages - Covered Tanks ≤1m3, 1-3m3 , 3 -10m3 , 10 -30m3, 30 -100m3, 10 0-300m3, 300-100m 3 , >1,000m 3 differentiated. Tanks – stated vol.4 stages - i.e ≤ 1m3 , 1-3m3 , 3-10m3 and 10-15m3 and did not differentiate between covered and uncovered tanks.

2Q - TIMBER No difference in the two documents BESMM3 and BESMM4 except for minor typographical corrections G50 – Timber 2Q – Timber Page 204 column 2 item 4 & 7; 0.04 – 1.0m2 - Page 416, second division items 4 & 7, 0.04 – 0.1m2 and and exceeding 0.4m respectively. exceeding 0.4m2 respectively.

2P - PILES D75 – PILES AND PILLIMG ANCILLARIES 2R – PILES - Measurement to Rule D30 (building work section) - Rearranged; piles (2R) now separated from their ancillaries (2S) Piles and its ancillaries lumped together. Notice - Bored piles. - Notice - Bored cast in place concrete piles. - Driven shell piles. - Driven cast in place concrete piles - Nominal cross sectional size to be stated - Nominal cross section diameter size to be ( Not given). stated (given in groupings i.e (1) 300 or 350mm diameter (2) 400 or 450mm diameter. (3) 500 or 550mm diameter up to 1500mm diameter. Notice - Preformed concrete piles - Notice - Preformed concrete piles. - Nominal cross section size stated (not given). - Preformed concrete sheet piles. - Timber piles. Nominal cross section area given in 8 stages: (≤ 0.025m2 up to exceeding 1m2 – see page 420.

Notice - Isolated piles –steel mass/m and Notice – Isolated piles Mass/m given in 8 stages cross sectional size to be stated (≤ 15kg/m up to exceeding It/m – see page 421). (not given) - Interlocking piles – steel - Interlocking steel piles section modulus to be stated section modulus given in 8 stages (≤ 500cm3/m up to (not given). exceeding 5000cm3/m – see page 422). - Stone columns provided (to be measured) and in 8 stages e.g (≤ 300mm diameter up to exceeding 1200mm diameter – see page 424).

BESMM3 BESMM4 2T – ROADS AND PAVINGS Treated under highways – Q45 - Treated under the present heading – 2T Roads and pavings - Inclusion/Exclusions are more specific. 6 Classifications - 9 classifications. Sub-bases, flexible road bases & surfacing - Unbound sub-base (Div.1) – further classified into 4 types depth to be stated (not given) (Div. 2). - depth given in 8 stages (≤ 30mm up to exceeding 300mm – see page 435). None - Cement and other hydraulically bound pavement (Div.1); Further classified into 8 stages cement bound granular mixture, fly ash bound mixture, slag bound, mixture B2, B3 etc (see page 436 & 437) - Depth given in 8 stages (≤ 30mm up to exceeding 300mm – see page 436). None - Bituminous bound pavement (Div. 1); further classified into 16 types (Div. 2) with depth thickness groupings given in 8 stages (≤ 30mm up to exceeding 300mm.

2T – ROADS AND PAVINGS BESMM3 BESMM4 Concrete pavements – carriage way slabs, etc. - Concrete pavements (Div. 1) further classified into 10 types (Div. 2) – unreinforced concrete surface slabs, jointed reinforced, continuously reinforced, etc. Depth, thickness to be stated (not given) - Nominal mass, (kg/m2) to be stated (not given) - Depth/ thickness groupings given in 8 stages (≤ 300mm for fabric reinforcement. upto exceeding 300mm – see page 435). Mass of bar reinforcement taken at 7.85t/m3 (nominal sizes of members not given - Nominal mass (Kg/m2) for fabric reinforcement groupings given in 8 stages (≤ 2kg/m2 upto exceeding 8kg/m2 - see page 440). - mass of bar reinforcement taken at 7.85t/m3 and nominal sizes given in 8 stages. (6mm – 32mm or greater diameter – see page 441). Waterproof membranes below concrete - Separation and waterproof membranes pavement. Item description to state the gauge and extent - Item description to state their material and of laps. thickness. Joints in concrete pavements; depth of joints to - Joints in concrete pavements; depth in groups given in 8 be stated in mm (not given) stages (≤ 30mm upto exceeding 300mm – see page 442).

BESMM3 BESMM4 2T – ROADS AND PAVINGS Kerbs, channels and edgings. - Kerbs, channels, edgings, footways and paved areas. Classified into 6 items. - classified into 10 items (Div 2) – with additions of items 7 – 10 see page 443). Ancillaries, surface markings- 5 items - Ancillaries; surface markings – 6 items noticed including: noticed including . Non reflecting road studs . Non reflective studs. . Reflecting road studs and . Reflecting studs . Raised rib.

2U – RAILWAY TRACK CONSTRUCTION x40 - BESMM3 2 U - BESMM4 Track bases/ foundation; 5 items noticed - Track bases / foundations; 8 items noticed additional 3 items included . Ballast cleaning . Tamping. . Pneumatic ballast. Taking up; sundries; 6 items noticed. - Taking up; sundries; 7 items noticed – additional item is . Eutectic strip. Lifting packing and slewing; 5 items - Lifting, packing and slewing and work to existing track; 6items evolved. - Notice the removal of turnouts, stops, etc. - Additional items include . Existing rail turning and fixing . Rerailing . Stressing rail. - 3rd Division additional information as to (1) plane track, (2) Plane track with conductor, (3)Plane track with turnout (4)plane track with conductor rail and turnout and (5) Buffer stops.

2U – RAILWAY TRACK CONSTRUCTION BESMM 3 BESMM4 supply; 4 grouping of mass of rails - supply: 5 groupings of mass of rails – correction as to the omitted grouping of 40 – 50kg/m. 6N. 2 sleepers, 2 items of Timber and - Div. 2 – sleepers; 3 items of Timber, concrete and steel concrete noted noted. Fittings; 7 items noticed. - Fittings 9 items – 2 additional items . Switch heaters. . Switch levers. Turnouts/ Diamond crossings, no item noted. - Turnouts and crossing – 4 items noted and includes; . Trap points . Catch points . Turnouts and . Diamond crossings. sundries; 6 items - Sundries; 7 items; additional item . Conductor rail guard board. - Additional classification as to . Prefabricated track panel 18.288m long with rails and bearers with 6 items. . Prefabricated turnouts and crossing with equally 6 items.

BESMM3 BESMM4 D75- Piles And Ancillaries 25- Piling Ancillaries - As stated above; Grouped together. - Each of the measured work e.g Bored cast in place concrete piles, preformed, interlocking,etc has their 7or 8 number items of piles ancillaries to be measured. These excludes disposal and delays. disposal here is deemed to be included with the piling works - Measured work items pre-boring, extensions, cutting Off tops, etc including disposal, delays(ring standing), - Where the cross sectional area,mass sectional modulus, etc were required;their range were provided. Where the cross sectional area, mass, sectional modulus, etc were required, they were not given or specific. Plies tests did not provide for type of test to be done. Piles tests provided 5 types of tests that might be carried out (see page 433)

BESMM3 D75- Piles And Ancillaries BESMM4 25- Piling Ancillaries As stated above; Grouped together. Measured work items pre-boring, extensions, cutting Off tops, etc including disposal, delays(ring standing), Where the cross sectional area, mass, sectional modulus, etc were required, they were not given or specific. Plies tests did not provide for type of test to be done. Each of the measured work e.g Bored cast in place concrete piles, preformed, interlocking,etc has their 7or 8 number items of piles ancillaries to be measured. These excludes disposal and delays. disposal here is deemed to be included with the piling works Where the cross sectional area,mass sectional modulus, etc were required; their range were provided. Piles tests provided 5 types of tests that might be carried out (see page 433)