NHBRA SOIL LABORATORY SECTION INTERIM REVISED TEST RATES FOR THE MATERIALS LABORATORY

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1 NHBRA SOIL LABORATORY SECTION INTERIM REVISED TEST RATES FOR THE MATERIALS LABORATORY DATE OF REVISION: ) 10th October 2010 S/N TEST DESCRIPTION UNIT RATE REMARKS 1 Sieve Analysis (wet and dry methods down to BS sieve No. 200) 20, Hydrometer analysis 25, Ditto 1, 2 but combined 40, Atterberg limits 25, Linear shrinkage 15, Ditto 4, 5 but combined 40, Free swell 15, Specific gravity 15, PH-Value determination 15, ** 10 Organic content (ignition method) 20, ** 11 Ditto 10 but hydrogen peroxide method 30, ** 12 Sulphate content determination 25, ** 13 Carbonate content determination 25, ** 14 Cement content determination 25, ** 15 Moisture content determination 15, Permeability test a) constant head 30, ** b) falling head 35, ** S/N TEST DESCRIPTION UNIT RATE 17 Bulk density of undisturbed sample 20,000.00

2 18 Field density 40, Laboratory compaction test a) Standard proctor(mould diameter100mmd) 50, b) Modified AASHO (mould diameter100 55, mm d) 20 CBR penetration (static method) a) unsoaked 30, b) 1 day soak 40, c) 4 days soak (Three points) 120, Ditto 20 but Dynamic method a) unsoaked 25, b) 1 day soak 30, c) 4 days soak (Three point) 150, CBR for stabilized materials 3 days curing 50, and 4 days soak 23 One Dimensional consolidation (oedometer 30, test) 24 Direct shear test 40, Trial shear test a) Total stress method 50, b) Un-drained and consolidated (cuo) with 50, pore water (Uo) measurements c) Drained and consolidated (effective stress method) 60, Unconfined compression test a) 38.1 mm dia. Sample 40, b) 101.6mm dia. Sample 30, Wetting and drying complete test (12 cycles) 60, ** S/N TEST DESCRIPTION UNIT RATE AGGREGATES 1 Sample preparation 25,000.00

3 Sieve analysis down to BS sieve size No. 30, Clay, silt, fine dust content 30, Water absorption for aggregates Moisture content 20, , Organic impurities for sand 40, Alkali-aggregate reaction Chloride content Sulphate content Voids Loss in ignition 100, , , , , Aggregate soundness by sodium sulphate 150, of magnesium, 5 cycles 7 Bulk density 30, Elongation index 30, Flakiness index 30, Aggregate crushing value (ACV) 40, Aggregate impact value (AIV) 40, Los angles abrasion test (LAAT) 45, Crushing of rock cores Preparation of rock samples Identification of rock and aggregates 30, ** 16 Ten percent (10) fines 40, Specific gravity 30, CONCRETE, BLOCKS AND BRICKS CO Crushing cubes n.e 15. cm 5, CO Crushing brick 5, CO Crushing blocks 5, CO Crushing mortar cubes n.e 75 mm size 5, CO Concrete mix design 600,

4 S/N TEST DESCRIPTION UNIT RATE 6 Casting of cubes (3 in, a set) 25, Slump test Air pore contents Compaction 10, , , Water absorption (blocks bricks) 10, Tensile strength of cement mortar 25, ** 10 Initial setting time of cement paste 10, Final setting time of cement paste 10, Ditto 10 and 11 but combined test 15, Schmidt hammer test of concrete (1 spot- 25, blows) 14 Flexural strength (bricks blocks) 15, TAR AND BITUMEN 1 Penetration test 35, Distillation test 50, ** 3 Softening point 65, ** 4 Flash point 60, ** 5 Viscosity 70, ** 6 Ductility 50, ** 7 Bitumen extraction 45, ** 8 Asphalt concrete mix design and trial mix 850, ** (complete test) 9 Marshal stability test crushing (set of 3 55, ** briquettes) 10 Coating and stripping test 30, ** 11 Coating and stripping with adhesion agent 30, **

5 S/N TEST DESCRIPTION UNIT RATE SITE INVESTIGATION 1 Site reconnaissance and preliminary studies Lumpsum 3,000, excluding transport minimum 2 Mobilization and demobilization 1,000, Set up and dismantle rig at each borehole 40, Transport of rig from borehole to borehole a) distance n.e 100 m 40, b) exceeding 100 m but n.e 1 km 350, Ditto SI/4 but distance exc. 1 km Ditto item SI/1 and SI/2 6 Boring through soil strata a) between ground level and 10 m M 60, b) between 10 m and 15 m M 70, c) exceeding 15m but n.e 30 m M 80, d) Exceeding 30 m but n.e 50 M 150, Ditto 6 but for S.P.T 0 10 m 440, m 60, m 80, Ditto 6 but for taking undisturbed samples 50, Ditto SI/6 but for taking disturbed samples 20, Ground water sampling 30, Filling boreholes with lean concrete M 45, Continuous cone penetration a) n.e 5.0 m depth M 35, b) exc. 5m but n.e 10m depth M 50, Pitting and taking undisturbed samples a) n.e 2.0 m deep M 35, b) exc. 2.0 m but n.e 3.0 M 70,000.00

6 14 Pitting and taking disturbed samples a) n e 2.0m deep M 35, Exc 2.0 m but n.e 5.0 M 70, S/N TEST DESCRIPTION UNIT RATE 15 Plate bearing test a) Truck method 560, ** b) Ballast loading 3,300, ** 16 Insitu CBR ** a) Truck method 30, ** b)cone penetration method 15, Vane shear test 20, ** 18 Penetration test by pocket penetrometer 10, ** 19 Drilling through rock and hard soils and ** collection of undisturbed sample at levels a) depth 0-10m M 350,00.00 ** b) depth m M 350, ** c) depth m M 550, ** 20 Concrete core sampling 30, ** 21 Full scale concrete footing test 400, ** 22 Dimensioning of an existing structure It depends 23 Site investigation using specific equipment It depends 24 Sampling of building materials a) rock and aggregates sampling 20, ** b) gravel sampling 20, c) sand sampling 20, d) miscellaneous sampling 20, Installation of ground water observation 55, ** tubes 26 Infiltration of test in boreholes to determine 600, ** the permeability of soil 27 Provision of casing (100 mm or 150 mm dia) ** a) 0m 10m M 15, ** b)10m 15 m M 30, ** 28 Field infiltration test for soils at shallow ** depths a) 0-50 cm depth 25, ** b) cm depth 50, ** 29 Hourly rates for stoppage caused by client a) Drilling rig and equipment Hr b) specialist engineer Hr 15, c) Technician Hr 10, d) Operator/Driller Hr 8,000.00

7 S/N TEST DESCRIPTION UNIT RATE CHEMICAL ANALYSIS 1 Sample preparation 55, ** 2 Insoluble residue 20, ** 3 Mn (colourrimetric method) 20, ** 4 Alkalis (Na2 k2o0 method) 30, ** 5 Free lime (double determination method) 20, ** 6 Nephelometric 20, ** 7 Chloride (CI) content 120, ** 8 Sulphur content in fuel oil 30, ** 9 Calorific value of coal or oil-double 45, ** determination method 10 Double Carbonate Titrate titration (TLO3) 30, ** 11 Carbonate titration (MgCo3 + CaCo3) 25, ** 12 Extraction of stabilized sample ** a) Lime stabilized sample 45, ** b) cement stabilized sample 90, ** DEFLECTION BEAM TEST ** Establishing a test point 10, ** Shifting and setting a beam at test point 9, ** Deflection testing 15, ** Truck charge for deflection per day 380, ** Dynamic Cone Penetration Test up to a depth 25, ** of 0.8m Roughness Measurement by a Merlin meter 35, ** 100m single pass Cracks measurement by square frame (1m * 1m) 18, **

8 S/N TEST DESCRIPTION UNIT RATE Rut depths 10, ** Measurement of pavement Temperature 15, ** Visual inspection taking records of visible 10, ** deterioration signs 100m single pass per lane Data compilation Km 550, ** CORE SAMPLING AC PAVEMENT ** 1 Setting machine at point 20, ** 2 Core cutting ** a) by 4 in. diameter cutter ** - up to 10 cm depth - up to 20 cm depth - 20 cm to 30cm depth - 30 cm to 45cm depth 45, , , , b) by 6in diameter cutter - up to 10 cm depth - up to 20 cm depth - 20 cm to 30 cm depth - 30 cm to 45cm depth 70, , , , Shifting core cutting machine from point to 65, point 4 Dismantling the machine after work 55, Consultancy services Senior Engineer Hr 30, Engineers Hr 25, Senior Technicians Hr 15, Technicians Hr 10, Preparation of Report minimum 250,000.00

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