Safety Method Statement External Works

Transcription

1 Description of Work and Location EXTERNAL WORKS A.Generally Preambles for other Sections of work shall apply equally to this section where applicable. B.Weed Killer The weed killer to excavations to be an approved organic weed killer as approved by the Contract Administrator and used strictly in accordance with the manufacturer's instructions. C. Hardcore Hardcore in beds and filling to make up levels under pavings shall be good clean hard brick, cement concrete, hard tiles, stone or ballast, broken before placing to pass a 75mm ring, free from all rubbish and deleterious material. Hardcore shall be well consolidated to the required levels and contours with a roller, vibrating roller or mechanical punner to the satisfaction of the Contract Administrator, care being taken that no damage is done to adjacent work. Surfaces of hardcore shall be blinded with sand, ashes or other fine material to the approval of the Contract Administrator. D. 7 Precast Concrete Paving Flags The precast concrete paving flags shall be obtained from a manufacturer approved by the Contract Administrator, made from natural and crushed aggregate, hydraulically pressed, of uniform colour throughout and complying in all respects with BS 7263: Part 1:1990 and of natural colour and with a non slip surface finish. The flags shall be laid true and square on cement mortar (1:3) dabs with 6mm joints, pointed up with cement and sand (1:6) mortar and cleaned off on completion. E. Precast Concrete Edgings and Kerbs The precast concrete edgings and kerb shall be obtained from a manufacturer approved by the Contract Administrator and manufactured to comply with BS 7263: Part 1:1990 and laid on edge with top 6mm below finished level of adjacent surface. F. Macadam Topping Re-topping shall be 19mm hot applied tarmacadam topping in accordance with BS Sub surface shall be thoroughly cleaned by scraping, brushing or washing, and allowed to dry. Just prior to laying of the topping apply a tack coat of tar bitumen emulsion at the rate of 0.3 to 0.5 litres per square meter. G. Macadam Surfacing Preparation and Tack Coat shall be in accordance with F) above. Base Course to be 20 mm dense coated macadam in accordance with BS 4987: Part 1:1993, Section2 Tables 5,6 and 7, having 20mm nominal stone aggregate with bitumen or tar binder. Wearing Course to be 6 mm medium textured macadam in accordance with BS 4987 Part 1:1993, Tables 32 and 33 having 6 mm nominal crushed stone aggregate with bitumen or tar binder. H. Interlocking Brick/Block Paving Concrete block pavings shall be obtained from a manufacturer approved by the Contract Administrator, of uniform colour throughout and complying in all aspects with BS 6717: Part 1 and of a colour to match existing. The block pavings shall be laid on a well graded sand bed vibrated to provide a thoroughly interlocked paving of even overall appearance with regular sand filled joints and accurate to line, level and profile.

2

3 WORKMANSHIP A. Formation Thoroughly compact bottom of stripped or excavated areas to receive base. Remove any obstruction or soft spots and add and compact suitable additional material to provide level or graded surfaces of equal bearing capacity. B. Bases for Paving Immediately after compaction of the earth formation, lay limestone base in consolidated layer not exceeding 150mm thick compacted with a vibrating roller or mechanical rammer. C. Concrete Paving Flags Flags shall unless specified elsewhere to the contrary be laid on a prepared stone base to match existing bonding and on a 25mm thick consolidated bed of limestone dust or approved washed sand. The joints shall be 5 10mm wide pointed with cement mortar (1:3) as the work proceeds. Completed paving shall be protected until the pointed joints have set and then brushed off and left clean. D. Macadam Paving The laying of macadam paving shall comply with Appendix A and B of BS 4987: Part 2:1993 subject to the following: Lay and compact the macadam in restricted areas by methods that produce a compacted finish equivalent to thickness achieved by heavy rollers. E. Kerbs and Edgings Kerbs and edgings shall be bedded on concrete and haunched halfway up on back. Form fine open joints between units. F. Interlocking Brick/Block Paving. Ensure that sub-bases are suitably accurate and to specified gradients before laying paving. Cut blocks/paviors neatly and accurately without spelling to give neat junctions at edge restraints and changes in bond. Supervision Pre-Site Preparation Work Site manager or competent forman to attend to site prior to works commencing to ensure safe and smooth operation. Work Operations Control of Operations Storage / Materials / Handling Materials only to be stored on site when necessary, otherwise transported as required.

4 Inspection / Monitoring Works to be inspected during and on completion of works by site manager or competent foreman. Competence of Operatives All operatives are fully trained and qualified within the their trades. Apprentices may be used where required. Accompanying Assessments Risk assesments to be compelted for all woks and associated works. Plant & Equipment All plant and equipment whether belonging to or hired, will be regularly tested. Safety of 3rd Parties All precautions will be taken in keeping with the safety of any third parties being the occupiers or general public. PPE Requirements All relevant PPe equipment will be used according to works involved. First Aid Requirements First aid kits supplied to all vehicles. Emergency Procedure Environmental Issues All waste and debris to be removed using registered waste carriers (skips) Contractor, Signed. Date.

5