DCPCUP-0000-01503 - Laserfiche WebLink

Home Browse Search

620 i Concrete masonry used in the work shall conform to the requirements fo-concrete P masonry Grade A,A-FA,A-S,A-IS or A-IP as specified in Section 501. i i 620.3 Construction Methods- c 620.3.1 Preparation of Foundation. The foundation for the median shall be pre- pared by excavating to the lines, grade and cross section shown on the plats and re- i quired for placing the concrete masonry. Any soft or unsuitable material en:ountered i shall be removed and replaced with suitable material and the foundation thoroughly compacted and finished to a firm surface.The foundation shall be moist at the time of r placing the concrete. r t 620.3.2 Placing Concrete_If forms are required, they shall be set to line and grade and secured in place before the concrete is placed. 0 The concrete shall be deposited to the proper depth,consolidated by spading or by , vibration and struck off at the required elevation and crown.The required corrugations shall be formed with tools and equipment appropriate for the purpose, in accordance with the plan details. i I When the median is constructed adjacent to concrete pavement, tie bars shall be s 1 • placed as prescribed under the pertinent construction requirements for longitt Edinal and '•'i transverse joints in Subsections 415.5.7 and 415.5.8. E The surface of the median shall have a broom finish unless otherwise provided. The broom shall be drawn transversely across the full width of the median su-face with .1 adjacent strokes slightly overlapping.The brooming operation shall be so executed that ; t the corrugations produced in the surface shall be uniform in appearance and not more t than 3 mm in depth. Brooming shall be completed before the concrete is in st ch condi- 1 tion that the surface will be torn or unduly roughened by the operation. The surface thus finished shall be free from rough or porous areas, irregularities and de pressions f resulting from improper handling of the broom-Brooms shall be of the qualit size and construction and be so operated as to produce a surface finish meeting the approval of the engineer_ f The newly placed concrete shall be cured by the Wet Fabric Method, the Impervi- ;I ous Coating Method or the Paper Method, conforming to the requirements s°t forth in �•; Subsection-415.5.10. +.: I The provisions of Subsection 415.5.13 shall apply to concrete median constructed 1 during cold weather. 's Protection of concrete median shall conform to the pertinent requirements speci- fied for protection of concrete pavement in Subsection 415.5.14. I All excavation and surplus materials shall be removed and disposed of by the con- ` tractor in the manner provided for in Subsection 205.3.11. 620.4 Method of Measurement- Concrete median will be measured by area in l square meters in place,including nose section, completed and accepted in a:cordance a` with the requirements of the plans and contract. i 620.5 Basis of Payment. The quantity of median, measured as provided above, : will be paid for at the contract unit price per square meter for Concrete C orrugated Median,which price shall be payment in full for preparation of foundation;for furnish- f ing all materials,including concrete masonry,joint filler and tie bars:for hauling,plac- ing, consolidating, shaping, finishing, curing and protecting the concrete; fc r disposal of surplus materials; and for furnishing all labor, tools,equipment and incidt ntals nec- essary to complete the work. 451 S0'd t7888 St 8 809 '9N I `NU1OQ '8 3NAUd 9Z:0 ti 866 T-2Z-Nf J'