9 of 15 Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 10: Roads, Landscaping and Fences  neer’s approval. The tack-coat shall be applied just sufficiently in advance of the placement of the as- phalt concrete mixture so as to provide a thin adhesive film of bituminous cement to ensure a good  bond. Tack-coat shall be asphalt emulsion (50 % water, 50% bitumen).  The tack-coat shall be uniformly applied by means of a pressure hand spray, in quantities of 0.3 liters  per square meter of surface, unless otherwise directed by the Engineer. Stakes for alignment control  shall be furnished, set and maintained by the Contractor, subject to checking and correction by the Engineer.  The stakes shall be set in lines parallel with the center line of the area to be paved, offset and spaced,  as directed by the Engineer.  Asphalt at the plant shall have minimum temperature of 150°C just before the delivery.  All bituminous mixtures shall be transported from the mixing plant to the spreader in trucks having  tight, clean, smooth beds which have been oiled with a minimum amount of approved thin oil to prevent adhesion of the mixtures to the trucks. Each load shall be covered with canvas, or other suitable material, to protect it from dust or rain, and to prevent the loss of heat. Deliveries shall be arranged so that spreading and rolling of all the mixtures prepared for a day’s run can be completed  during daylight, unless artificial light satisfactory to the Engineer is provided. Any excessively wet  loads will be rejected. Hauling over freshly laid material will not be permitted.  The asphalt pavement shall be constructed in accordance with the thickness as present prior to removal  and excavation work with a minimum thickness as specified. The temperature of each mixture when  dumped into the spreader shall be as directed by the Engineer, plus or minus 10°C. Asphalt mixture  shall have a minimum of 90°C.  The spreader shall be adjusted and the speed regulated, so that the surface of the course will be smooth  and of such depth that, when compacted, it will conform to the cross section shown on the Drawings.  The length of any lane before placing the adjacent lane shall be as directed by the Engineer. Where  two spreading machines are operating in staggered position, no single lane shall be laid in advance of  the adjoining lane further than will permit a satisfactory hot longitudinal joint between the lanes.  Where forming a hot longitudinal joint, the 150 mm strip along the edge against which additional material is to be laid shall not be rolled until such additional material is placed, except when the work  is to be discontinued. After the first lane has been placed and rolled, the adjacent lane shall be placed  while the unrolled 150 mm strip is hot and in readily compatible condition. Rolling of the adjacent  lane shall begin along the joint. Placing of the mixture shall be as continuous as possible.  Rolling shall be carried out using at least two machines, one three wheel roller having a weight of 10  tons, and the other rubber wheel roller having a weight of 20 tones.  In areas where the use of machine spreading is impractical, the mixture may be spread by hand and  dressed with rakes. The loads shall not be dumped any faster than can be properly handled by the  shovellers and rakes.  Contact surfaces of previously constructed pavement kerbs, manholes and similar structures shall be  painted with a thin tack-coat prior to placing the bituminous mixture.  10_Vol3_d4.3_Section 10 roads, landscaping and fences_en_GIR_rev6.docx  10.1.13 Placing  10.1.12 Transportation 