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Civil Works for the installation of sunshades, curbstones, and concrete layer for a play area and asphalt layer for a section of road in Mafraq Governorate/ Za’artari Camp

United Nations Entity for Gender Equality and the Empowerment of Women | Published August 11, 2015  -  Deadline August 30, 2015
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~~TECHNICAL SPECIFICATIONS, SCOPE OF WORK, BILLS OF QUANTITY AND DRAWINGS TECHNICAL SPECIFICATIONS Title Installation of sunshades, curbstones, and concrete layer for play area and asphalt layer for a section of Road in Mafraq Governorate/ Za’artari Camp Background Information The overall objective of the project is to empower Syrian women refugees through increased capacities for effective participation in service delivery, economic recovery opportunities and civic engagement within the community. The project will pursue the following specific objectives: a) establish conducive environment for increasing women’s participation in decision making processes concerning them and their community; b) create opportunities for women’s economic empowerment through income generation activities leading to durable solutions for the ‘day after’; c) increase awareness on women rights and responsibilities for an inclusive, equitable and peaceful society through training, enhancement of life skills. Objective UN Women, Country Office for Jordan plans to procure to install sunshades, curbstones, and concrete layer for play area and asphalt layer for a section of Road for 1st and 2nd oasis in Za’artari camp/Mafraq Governorate. Requirements Contractor Duties: • Contractor has to submit to the contracting authority the names of the workers and the equipment needed to perform the work. • Contractor has to submit its registration papers with certified papers showing their experience in the last five years. • Contractor has to take into consideration all the needed safety measures during execution of the works. All workers have to wear personal protective equipment's (PPE). • Contractor has to submit a work plan with cash flow to be approved by the contracting authority before starting the works. • The contractor has to submit unconditional performance bond equal to 10 % of the contract price to the benefit of UN Women Country Office for Jordan, for the life time of the project from a local certified bank. • Contractor has to clean the site of work from all kinds of construction waste. • Contractor has to coordinate with the Project manager during the implementation. • At any stage if needed the contractor can claim for time extension if he reported any obstacles that affected the duration of the project within 15 calendar day of action. • If there is any comment or note from a UN Women staff member or a field engineer regarding the construction and the deliverables, the contractor address and rectify this immediately. • After finishing the works, the contractor has to submit unconditional maintenance bond to the benefit of UN Women Country Office for Jordan, of an amount of 5% of the contract for time of 6 months from a local certified bank. • All materials have to be approved by the contracting authority before installation and any storage place in the site need to be approved by management. • Contractor has to submit a weekly report for the contracting authority to show the progress of the works. • All overheads to be included in the unit price of the item. • This contract is a fixed price contract and the unit price cannot be changed during the life time of the project for any reason. Minimum Requirements: Minimum Qualifying Criteria  • Valid registration certificate with the authorized entity in Jordan and tax clearance certificate • List and value of projects performed for the last 5 years with similar nature and complexity, plus clients contact details who can be contacted for further information on the contracts. A minimum number of 2 contracts, implemented over the past 5 years, of a similar nature and complexity must be executed by the contractor (to comply with this requirement, work cited must be at least 70 percent completed). • List and value of on-going projects with contact details of clients and current percentage completion of each on-going project. Total monetary value of construction works performed for each of the last 5 years. Average should be no less than USD 100,000 per year. • Independently audited financial accounts for the last two years in English. Minimum Required Key Personnel • One Project Manager: Registered professional engineer civil or structure with at least 5 year experience. The site engineer must be available fulltime as long as the contract is binding. • One site engineer: Registered professional engineer civil or structure with at least 3 year experience. The site engineer must be available fulltime as long as the contract is binding. • One Forman: with 5 year experience in Civil Works (Full Time) The above listed key personnel are subject to UN Women Approval. The Contractor is encouraged to consider Gender Equality when recruiting/assigning his staff on the project. Note: The owner(s) and/or General Managers of the contracting firm are not allowed to fill in any of the above listed key positions, unless a written approval is granted for that purpose by UN Women. Specification: The General Specifications of this construction contract are all volumes of “the Specifications for Highway and Bridge Construction “issued by the Ministry of Public Works and Housing of the Hashemite Kingdome of Jordan. The vendor is to obtain them at his own expense. And also the volumes (1, 2, 3) of "General Specifications for civil, architectural, mechanical, and electrical works, which was published by the ministry of public works issued on 1996. Binding Concrete Grade 15: Provide and pouring  regular  concrete grade 15 is calculated item 306/1 and item 306/2 / a / 1 with a distinct resistance 15 Nm / mm 2 and not less resistant fraction of the cubes of concrete about 15 N / mm 2 after 28 days Part III and double under Section 327/1 of the door third, inclusive price under Section 328/1 of Title III and the price includes the conduct of tests and the Contractor's expense, to concrete hygiene within the excavations and a thickness of no more than 10 cm. Concrete Grade 25: Providing and pouring  reinforced concrete grade 25 under Section 306/1 and item 306/2 / a / 1 with a distinct resistance 25 N / mm 2 and not less resistance to breakage of the cubes of concrete about 25 N / mm 2 after 28 days of Title III and double under Section 327/1 and comprehensive price under Section 328/1 Part III with the addition of fluidized bed material that This includes areas isolated under the Earth's natural level, and fire face wood, and all it takes to get the job done and duly instructed the supervising engineer. Curbstone: The contractor must provide a design of a concrete mixture for curbstone, or provide samples of the curbstone that has previously been poured by 3 different sources. The supervising engineer must approve the samples that pass the lab tests, and work is done as per the studies made by the Royal Scientific Society. The supervising engineer then orders the type and thickness as per the attached BOQ, while the curbstone is classified based on the Royal Scientific Society’s study according to resistance as follows: Grade Distinctive Concrete Resistance (n/mm2) Minimum Breaking Load Width 150mm Width 180 mm A 35 33.5 48.5 B 25 24 35 C 20 19 28 Provided that the required grade is specified in the specifications or BOQ. - Sampling and Testing: Sampling takes place in the presence of the contractor and under the supervision of the engineer and his choosing in a matter of 3 pieces for each 1000 longitudinal meter, and piece for each additional quantity that is 1000 longitudinal meter or less. Testing is paid for by the contractor without requesting additional expenses for it. - Dimensions: The difference in dimensions should not be more than ±3 mm. The contractor is paid for curbstone works per longitudinal meter of the executed work, and the price includes the excavations for stone foundations, regular concrete, grout, and pointing. Work is done based on the section identified for sidewalk, pavement, and tiling jobs. Excavation: The excavation should be done to the required level and should not be less than 25 cm from the level of the asphalt or road. Regular concrete: regular concrete without rubble in 10*40 cm cross section with a breaking strength of 150 kg/cm2, within the excavations and under the curbstone and concrete reinforcement, according to section and sheeting protection behind the curbs with a section of 10*20cm regular concrete Grade C-15. Grout: a concrete grout 1:6 is used for building, and must be mixed in small portions so that it used before 30 minutes pass from the mixing time. It is not allowed to use grout that has been mixed before more than 30 minutes. Base Course: Furnish materials and construct the base course layer 200 mm compacted depth to the nominated roads to the limits of the road line within width of road, section, grades, cross section and sizes all as shown on the drawings and BOQ. Spread, level, consolidate and compact to at least 100% of maximum dry density. Base course materials and construction to be tested and be approved to comply with the following: Type of material: Crushed lime stone, screened wadi gravel, crushed and screened basalt or granite with screenings within specified gradation Abrasion Maximum 40% AASHTO T96 Ratio of wear loss rev100/rev500 Maximum 0.25 AASHTO T96 C.B.R Minimum 80% AASHTO T193 For passing No.40 L.L Maximum 25% AASHTO T89, T90 For passing No.40 P.I   Maximum 6 %   AASHTO T89, T90 S.E Minimum 30% AASHTO T176 Dry Density Minimum 2.05 gm/cm3 AASHTO T180 Compaction Minimum 100% AASHTO T191 Clay lumps and friable particles Maximum 3% AASHTO T112 Clay Content Maximum 5% AASHTO T.88 Flakiness Index Maximum 25% B.S 812 Elongation Index Maximum 25% B.S 812 Soundness Na Maximum 12% AASHTO T104 Soundness Mg Maximum 18% AASHTO T104 Gypsum content (SO3) Maximum 2% B.S 1369 Gradation % AASHTO T-27 as following table Sieve Designation Percent by  weight passing base courses (2 inch) …. (1 ½ inch) 100 (1 inch) 75-100 (3/4 inch) 60-90 (1/2 inch) 45-80 (3/8 inch) 40-70 (No.4) 30-65 (No.10) 20-40 (No.40) 8-20 (No.200) before compaction 5-10 (No.200) after compaction +3%  Maximum - Fines content passing no.200 less than half passing no.40 AASHTO T.27 - All finished elevations, lines and grades shall be in accordance with the details shown on the Drawings. Each cross section shall be checked at maximum intervals of 20 m and at each change in cross slope and elsewhere as directed. - Tolerances on elevations of finished sub-grade, +10 mm to - 10 mm - The finished and approved base course shall be continuously maintained in a smooth, well compacted and properly drained condition until the base course is constructed. Re-approval of the sub-grade will be required if the overlying course is not constructed within 14 days of sub-grade completion or if the sub-grade layer is damaged by traffic or any other causes prior to the placement of the base course layer. - The Contractor shall be responsible for compliance with the Specifications, testing in approved laboratory samples and ensuring samples satisfy all specified test requirements. Unsatisfactory materials shall be removed from the Site. - Remove defective sections and replace to correct tolerances - Compaction shall be tested in accordance with AASHTO T 191 or AASHTO T 205. If there is a delay between the construction of any layer and the following layer, if necessary and required by the Engineer the compaction of the lower layer may be re-verified to ensure that it has not loosened due to traffic, passage of construction equipment, adverse weather conditions or otherwise. - Compact layer to 100% of maximum density AASHTO T.180 - The Contractor shall be responsible for compliance with the Specifications, testing in approved laboratory samples and samples satisfy all specified test requirements. Unsatisfactory materials shall be removed from the Site. Asphalt Layer Furnish and apply 50 mm thickness hot mix Asphalt Pavement to the nominated roads to the limits of the road line within width of road, section, grades, cross section and sizes all as shown on the drawings and BOQ. Asphalt Pavement materials, construction and tests to be approved to comply with the following: - Type of material: Lime stone or granite - Type of Bitumen: A.C 60/70 AASHTO M20 - Stability minimum 750 kg - Flow 2 – 4 mm - Loss of Marshall Stability maximum 25% AAHTO T 165 - Bitumen content, percent by weight of total mix 3.5 - 4.5 or as designed. - Air void 3 – 5 % - Percent Voids in Mineral Aggregate (V.M.A.) minimum 13% - Compaction 98% - The maximum temperature at the mixing plant 160°C - The minimum temperature for rolling 120°C - Aggregate specification: - Abrasion maximum 35% - Ratio of wear loss rev100/rev500 Maximum 0.22 AASHTO T96 - Flakiness Index Maximum 20% B.S 812 - Elongation Index Maximum 20% B.S 812 - Clay lumps and friable particles Maximum 1% AASHTO T112 - Sand equivalent minimum 50% Test sample shall be taken from hot bins. The material from hot bins passing the number 40 sieve {0.25mm) when tested in accordance with AASHTO T90 shall be non-plastic. In addition the material from cold bins should not have PI larger than 4. The mix shall be laid by means of a paver, and rolled and compacted to not less than 98% of the average daily Marshall Bulk density. Rolling shall be carried out by means of approved self-propelled steel drum followed by pneumatic tired rollers. The following stages shall be used unless otherwise directed by the Engineer. Initial breakdown using 2 dual drum steel vibratory roller at minimum 120°C Intermediate rolling using tandem pneumatic smooth tired roller at minimum 90°C Final rolling at minimum 70°C Tolerances maximum * 10mm at intervals not exceeding 10 meter When tested with a 3m long straightedge, parallel to and perpendiculars to the centerline, the maximum deviation between any two contact points shall not exceed 5 mm. The combination of permitted tolerances in the levels of the bituminous courses shall not result in a reduction of thickness by more than 5mm from the specified. Thickness of each bituminous course shall be determined by taking core samples, as directed by the Engineer.
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