7 of 15 Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 10: Roads, Landscaping and Fences  The road base shall be compacted by approved equipment to a dry density which shall be not less than  95% of the maximum laboratory dry density as measured by 4.5 kg rammer method. The CBR value  shall not be less than 80% after four days immersion in water.  Where natural gravel is used, water necessary to adjust the moisture content shall be added during laying by use of equipment equipped with a sprinkler bar giving an even spread of water over the  whole width of the pass. Uneven wetting of the road base shall be avoided by ensuring that the equipment moves at a constant speed, and in addition, the material shall be turned over to ensure even  distribution of the water throughout the layer. On completion of compaction and before commencing the next operation, the surface of the granular  road base shall comply with a surface tolerance of +/ -1 cm.  10.1.6 Temporary reinstatement of public highways  Temporary reinstatement of public highways shall be carried out as soon as is practical after completion of the Permanent Works and before the section of the road or pavement is re-opened for  public use. Temporary reinstatement shall be maintained by making good any subsidence, shrinkage,  defect, imperfection or fault a period as directed by the Engineer but at least three months prior to final  reinstatement.  Temporary reinstatement where not specifically required by the General Directorate of Highways or  the Municipality shall comprise an additional depth of sub-base material as instructed by the Engineer.  Original surface materials may be placed by hand with the wearing course upper most. The method of  placing and compacting of temporary reinstatement shall be similar to that for road base construction,  to the same surface tolerance, and to suit levels of the surrounding undisturbed road or pavement.  Only materials approved by the Engineer shall be used for making good any defects. Immediately prior to final reinstatement, the temporary reinstatement shall be cut out and disposed of  offsite and the road base cut out where found to be damaged or otherwise defective and replaced and  compacted as specified.  The final re-surfacing of asphalt public roads and pavements shall be considered as included in the  rates and prices.  The Contractor shall when laying the temporary reinstatement ensure that levels of manholes and sur- face boxes shall match the final road surface level.  Asphalt roads within the site(s) shall be surfaced in accordance with the following herewith Employer’s Requirements.  All the tests required by the requirements of Turkish Highway Authority shall be carried out.  The bituminous mixture for the surface courses shall conform to the requirements of locally produced  mixtures.  The composition of the mixtures is generally as follows:   Stone dust filler  10_Vol3_d4.3_Section 10 roads, landscaping and fences_en_GIR_rev6.docx  10.1.8 Bituminous course  10.1.7 Asphalt pavements 