CERTIFICATE OF ACCREDITATION

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1 CERTIFICATE OF ACCREDITATION In terms of section 22(2) (b) of the Accreditation for Conformity Assessment, Calibration and Good Laboratory Practice Act, 2006 (Act 19 of 2006), read with sections 23(1), (2) and (3) of the said Act, I hereby certify that:- AURECON SOUTH AFRICA (PTY) LTD Co. Reg. No.: 1977/003711/07 Facility Accreditation Number: T0023 is a South African National Accreditation System accredited Testing laboratory provided that all SANAS conditions and requirements are complied with This certificate is valid as per the scope as stated in the accompanying schedule of accreditation Annexure A, bearing the above accreditation number for CIVIL ENGINEERING TESTING The facility is accredited in accordance with the recognised International Standard ISO/IEC 17025:2005 The accreditation demonstrates technical competency for a defined scope and the operation of a laboratory quality management system While this certificate remains valid, the Accredited Facility named above is authorised to use the relevant SANAS accreditation symbol to issue facility reports and/or certificates Mr R Josias Chief Executive Officer Effective Date: 01 September 2014 Certificate Expires: 31 August 2019

2 SCHEDULE OF ACCREDITATION Facility Number: T0023 Permanent Address of Laboratory Management Representative: Ms S Sendfeld AURECON South Africa (Pty) Ltd 993 Park Street Hatfield Pretoria Hatfield Technical Signatories: Mr J van Wyk Mr MJ Matheba Mr M Schwartz Ms JK Thapelo Ms D Nkadimeng (Bitumen & Modified Bitumen & Concrete methods excl). SABS SM 865 and Soil, Sand, Gravel methods excluding TMH 1:A17; TMH 1:A12T TMH 1:A20; TMH 1:A21T; AASHTO 223; DOT M5 A 17T and TMH 1:A15 (d) Mr HFT Barnard (TMH1:A1 (a), TMH1:A2, TMH 1:A3, TMH1:A4, TMH1:A5, ASTM D4 22, TMH1:A7, TMH1:A8, TMH1:A20, TMH1 A21T,TMH:A17, TMH1:A12T, AASHT0233 Postal Address: Nominated Representative: Mr J van Wyk P O Box Hatfield 0028 Tel :(012) Issue No.: 25 Fax :(086) jacquesv@geostrada.co.za Soil, Stabilised Soil, Determining the grain size distribution of soil, TMH 1:A1(a) Sand and Gravel gravel and sand Determining the liquid limit of soil TMH 1:A2 Determining the plastic limit and plasticity TMH 1:A3 index of soil Determining the linear shrinkage of soil TMH 1:A4 Determining the percentage of a soil sample TMH 1:A5 which passes through a 0,075 mm sieve Original Date of Accreditation: 01 September 1991 Page 1 of 6

3 Soil, Stabilised Soil, Determining the grain size distribution of soil ASTM D422 Sand and Gravel by means of a hydrometer Determining the maximum dry density and TMH 1:A7 optimum moisture content of gravel, soil or sand Determining the california bearing ratio of TMH 1:A8 untreated soil or gravel Determining the california bearing ratio of TMH 1:A9 stabilised soil or gravel Determining the unconfined compressive TMH 1:A14 strength of stabilised soil, gravel or sand TMH 1: A13T Determining the wet-dry durability of cement TMH 1:A19 -stabilised materials The electrometric determination of the ph of a TMH 1:A20 soil suspension Determining the conductivity of a saturated paste of soil and water TMH 1:A21T Determining the indirect tensile strength of stabilised materials TMH 1:A16T Determining the moisture content of materials TMH 1:A17 Determining the relative density of soil TMH 1:A12T Determining the dry density of an undisturbed AASHTO 233 soil sample Determining the initial lime consumption of gravel, soil and sand DOT M5 A 17T Aggregates and Sand Determining the cement or lime content of TMH 1:A15(d) stabilised soil Original Date of Accreditation: 01 September 1991 Page 2 of 6

4 Date of Issue: 05 July2016 Aggregates and Sand Determining the aggregate crushing value TMH 1:B1 SANS 5841 Determining the 10% fines crushing value TMH 1:B2 SANS 5842 Determining the flakiness index of coarse TMH 1:B3 aggregate SANS 5847 Sieve analysis of aggregate, including the TMH 1:B4 passing of material through the 0,425 mm SANS 201 determining and 0,075 mm sieves Determining the organic impurities in sand for TMH 1:B6 concrete SANS 5832 Determining the bulk density of coarse and TMH 1:B9 fine aggregates SANS 5845 Determining the adhesion of bituminous TMH 1:B11 binders to stone aggregate by means of the chemical immersion test (Riedel and Weber) Determining the effect of soluble deleterious TMH 1:B12 material in fine aggregate on concrete SANS 5834 Determining the fineness modulus of fine TMH 1:B13 aggregate SANS 201 Determining the bulk and apparent relative TMH 1:B14 density and water absorption of aggregate larger than 4,75 mm Determining the bulk and apparent relative TMH 1:B15 density and water absorption of aggregate smaller than 4,75 mm Quantitative determination of the total water TMH 1:B16T soluble salts in soil and aggregate SANS 5849 Original Date of Accreditation: 01 September 1991 Page 3 of 6

5 Aggregates and Sand Quantitative determination of the quantity of TMH 1:B17T water-soluble sulphates in soil and aggregate SANS Determining the average least dimension of aggregate (Direct method) TMH 1:B18 (a) Determining the average least dimension of aggregate by means of computation TMH 1:B18 (b)t Determining the sand equivalent of aggregate TMH 1:B19 SANS 5838 Determining the soundness of aggregate by SANS 5839 means of magnesium sulphate or soaking in CRD-C ethylene glycol Detection of sugar in fine aggregate SANS 5833 Determining the shell content of fine aggregate SANS 5840 Determining the chloride content of aggregate SANS 202 Determining the abrasion resistance of coarse SANS 5846 aggregates (Los Angles machine method) ASTM C ASTM C AASTHO T96 Deleterious clay content of the fines in aggregate SANS 6243 (methylene blue absorption indicator test) Asphalt Mixtures Determining a suitable binder content for an TMH 1:C1 asphalt mixture Determining the resistance to flow of cylindrical briquettes of a bituminous blend by means of the marshall apparatus TMH 1:C2 Appendix C2 Determining the bulk relative density of a TMH 1:C3 compacted bituminous blend and calculation of the voids content Original Date of Accreditation: 01 September 1991 Page 4 of 6

6 Asphalt Mixtures Determining the maximum theoretical relative TMH 1:C4 density of an asphalt mixture / blend - (Rice) Determining the immersion index of the asphalt TMH 1:C5 mixtures Determining the effect of moisture on asphalt (Modified lottman test) ASTM D4867 Determination of the indirect tensile strength of asphalt mixes TMH 1:C12T Determining the binder content of asphalt mixtures / blends (indirect method) TMH 1:C7b TMH 1:C7a Determining the moisture content of TMH 1:C11 bituminous mixtures (oven drying) Determining the air permeability of compacted asphalt TMH 8: App C Bitumen and Modified Bitumen Determining the ball penetration and resilience Sabita M3 BR 2 T; MB10 (Including BR 1 T) Determining the compression recovery Sabita M3 BR 3 T; MB11 (Including BR 1 T) Determining the flow characteristics Sabita M3 BR 4 T ; MB12 (Including BR 1 T) Determination of the dynamic viscosity using a Sabita M3 BR 5 T; MB13 rotary viscometer (Including BR 1 T) Determining the elastic recovery of the mixture Asphalt Academy TG1 MB4 Determining the ring and ball softening point IP 58 or ASTM D36: MB17 Determining the penetration value of bitumen ASTM D5:05a Viscosity determination of bitumen using the brookfield thermosel apparatus ASTM D4402; MB18 Determining ductility DIN 52013; MB19 Original Date of Accreditation: 01 September 1991 Page 5 of 6

7 Bitumen and Modified Bitumen Rolling thin film oven test ASTM D ; MB3 RTFOT Concrete Making, curing and determining the TMH 1:D1 compression strength of concrete cubes SANS & SANS 5863 Flexural strength of hardened concrete SANS 5864 Determining the slump of freshly mixed TMH 1:D3 concrete SANS Drilling, preparing and testing concrete cores SANS 5865 Site Control Tests In-situ dry density of soil or gravel by the sand TMH 1:A10 (a) replacement method In-situ density and moisture content of soil or gravel by the nuclear method TMH 1:A10 (b) of the in situ strength of soils by the dynamic cone penetrometer (DCP) TMH 6:ST6 of texture depth of a road surface TMH 6:ST1 The ball penetration test for surface treatment design TMH 6:ST4 Original Date of Accreditation: 01 September 1991 Page 6 of 6 ISSUED BY THE SOUTH AFRICAN NATIONAL ACCREDITATION SYSTEM

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