615.03 Construction Requirements.
615.03 Construction Requirements.
a.Foundation . The foundation shall be formed at a depth of not less than 8 inches {200 mm} below and parallel to the finished surface of t he slope drain. All soft or other unsuitable material shall be removed, and the foundation shall be compacted and finished to a smooth, firm surface.
b.Bedding Stone . The approved foundation material shall be prepared to form a bed as provided by the pla ns. The slope drain stone shall be bedded in the foundation perpendicular to the finished surface, flat face up, with the longest dimension parallel to the slope drain. The stone shall be fitted and laid in close contact and shall break joints satisfactori ly. Each stone shall be tamped into place until the stones are firm and the surface conforms to the finished grade and cross section.
c.Finishing . While the slope drain stones are being tamped, the spaces between stones shall be filled and rammed with ba ckfill material selected from unclassified excavation, to within 3 inches {75 mm} of the top and any irregularities in the slope drain corrected. The cement grout shall be poured and broomed into the spaces between and over the stones. This operation shall be continued until the grout remains flush with the tops of the stones. The slope drain shall be protected by wet burlap until the grout hardens, then kept moist for at least three days after grouting. No grout shall be poured in freezing weather.
615.04 Method of Measurement.
Accepted Grouted Rubble Masonry Slope Drain will be measured in square yards {square meters} complete in place, along the finished surface both longitudinally and transversely, and computed to the nearest 0.1 square yard {0.1 m²}.
615.05 Basis of Payment.
a.Unit Price Coverage . The accepted Grouted Rubble Slope Drain will be paid for at the contract unit price per square yard {square meter}, complete in place, which shall be payment in full for excavating and preparing the foundatio n bed, placing and grouting the stone and for furnishing all materials, tools, labor, and incidentals necessary to complete the work.
b.Payment will be made under Item No .: 615-A Grouted Rubble Slope Drain - per square yard {square meter} SOIL CEMENT FLUMES
616.01 Description.
This Section shall cover the work of constructing soil cement flumes at locations designated in accordance with details shown on the plans.
616.02 Materials.
All materials shall conform to the requirements of Division 800, Materials. Specific reference is made to the following: Cement, Section 815. Water, Subarticle 807.01(b). Local Sand, Sand -Gravel, and Stone Screening for Miscellaneous Construction, Use Section 826. Preformed Joint Filler, Article 832.01. Test specimens will not be required for soil cement flume.
617.01 Description.
616.03 Construction Requirements.
a.Subgrade . Subgrade shall be finished and compacted to the section as shown on the plans or as designated. Side forms and t ransverse forms of the size and shape necessary to secure the desired section shall be placed prior to the placing of the mix and at such intervals which will insure a true finished grade and section by screeding with a straightedge.
b.Mix. The mix shall be one part Portland cement and six parts, by loose moist volume, local sand or sand-gravel and shall be mixed in an approved concrete mixer or by approved hand methods to a consistency dry enough to stand on the slopes without subsequently settling and s loughing, and tamped, rough graded, and finished by means of a hand float. After screeding, the surface shall be finished by hand float methods.
c.Curing . As soon as the soil cement has hardened sufficiently to prevent marring of the surface, and not later than the morning following its placement, it shall be cured for a period of 72 hours using one of the methods provided in Article 450.03.
d.Joints . Transverse expansion joints shall be constructed at maximum intervals of 40 feet {12 m}. They shall be filled with either preformed joint filler or acceptable yard lumber board of 1 inch {25 mm} (nominal size) pine, S4S. The finished surface shall be scored transversely with a grooving tool to a depth of at least 1/2 inch {13 mm} so as to form a weakened pl ane joint at intervals of 6 feet {2 m}.
e.Toe Walls . Toe walls shall be constructed across the ends of each flume as follows: On upper end a toe wall of 6 inches {150 mm} in thickness and 12 inches {300 mm} in minimum depth below subgrade of the flume; o n the lower end a toe wall 6 inches {150 mm} in thickness and 12 inches {600 mm} in minimum depth below subgrade.
f.Solid Sod Strip . A strip of solid sod shall be placed along each edge of the flume.
616.04 Method of Measurement.
Accepted soil cement flu me will be measured in square yards {square meters}, complete in place, along the finished top surface both longitudinally and transversely and computed to the nearest 0.1 square yard {0.1 m²}.
616.05 Basis of Payment.
a.Unit Price Coverage . Accepted Soil Cement Flume, measured as provided above, will be paid for at the contract unit price per square yard {square meter}, complete in place, which shall be payment in full for excavating and preparing the subgrade and foundation bed, furnishing a nd erecting forms, furnishing all materials, mixing and placing the mix, curing, backfilling, and for all other materials, tools, labor, and incidentals necessary to complete the work. Aggregate, available from the right -of-way, may be obtained by the Contractor without any charge for royalty and such material will not be included in excavation items. No direct payment will be made for toe walls. The solid sod strip will be paid for under Item 654, Solid Sod.
b.Payment will be made under Item No .: 616-A Soil Cement Flume - per square yard {square meter} SECTION 617 BITUMINOUS TREATED GLASS FIBER FLUMES
617.01 Description.
This Section shall cover the work of furnishing and placing a layer of bituminous tre ated glass fibers on planted ditch slopes and other areas as shown on the plans or directed.
Source: Alabama Standard Specifications for Highway Construction, 2022 Edition. Pages 497–497 of 934.