10 of 15 Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 10: Roads, Landscaping and Fences  10.1.14 Compaction of mixtures  Compaction shall be effected by three-wheel rollers and tandem rollers.  Rolling of the mixture shall begin as soon as after placing as the mixture will bear the roller without  undue displacement. Delays in rolling freshly spread mixtures will not be permitted. Initial rolling  shall be effected by tandem rollers, followed immediately by the three-wheel rollers. Rolling shall start  at the extreme sides of the lanes and proceed toward the center of the pavement, overlapping on successive strips by at least one-half the width of the rear wheel of the three-wheel roller. On the superelevated curves, rolling shall begin at the low side and progress toward the high side. Alternative  trips of the roller shall be slightly different lengths. Tests for conformity with the smoothness will be  made immediately after initial compaction, any deviations in excess of the specified tolerances shall  be corrected by loosening the hot surface with rakes and removing or adding material as directed before continuing the rolling.  The finished surface shall not vary more than 3 mm when tested with a 3.00 m straight edge applied  parallel with the center line of the pavement. After completion of the final rolling, the smoothness of  the course will be checked, and any irregularities that exceed the tolerance or that retain water on the  surface, shall be corrected by removing the defective area and replacing with new pavement. The  completed bituminous pavement will be tested for thickness at such intervals as directed by the Engineer. Where the thickness proves to be more than 5mm smaller than the specified pavement  thickness, the deficient pavement shall be removed and replaced with satisfactory pavement with no  additional payment.  Any mixture that becomes mixed with foreign material, or is in any way defective, shall be removed,  replaced with fresh mixture and re-compacted. The rollers shall not be permitted to stand on pavement  which has not been fully compacted. The Contractor shall provide competent workmen who are capable of performing all work incidentals to the correction of all pavement irregularities.  During rolling, the wheels of the rollers shall be moistened to prevent adhesion of the mixture to the  wheels, but an excess of water will not be permitted. The Contractor shall furnish additional and suffi- cient rollers if it is found that the pavement density specified is not obtained. In all spaces not accessible to the roller, the mixture shall be thoroughly compacted with hot hand tampers weighing  not less than 10 kg, with a tamping face of not more than 300 cm². Skin patching of an area that has  been rolled will not be permitted.  Generally, rolling shall be executed in such a manner as to produce a smooth surface and shall be continued until a density of at least 100% has been obtained.  All joints shall present the same texture, density and smoothness as other areas of the course. The  joints between old and new lanes or sections shall be carefully made in such manner as to ensure a  continuous bond between the old and new pavement. All trimmed contact surfaces of previously constructed pavement shall be painted with a thin, uniform tack coat before the fresh mixture is  placed. When the edges of joints are irregular, honeycombed, or poorly compacted, all unsatisfactory  sections of joint shall be trimmed to expose an even, vertical, or sharply sloping surface for the full  thickness of the course. Fresh mixture shall be raked uniformly against the joint, followed by rolling;  no vehicular traffic of any kind shall be permitted on the pavement for at least 24 hours.  Surface water drainage to site roads, hard-standings and access roads consists of a cross-fall on the  surface of the roads or paved areas draining to the adjoining ground.  10_Vol3_d4.3_Section 10 roads, landscaping and fences_en_GIR_rev6.docx  10.1.15 Drainage 