This section covers the requirements for treating subgrade by pulverizing, adding cement, mixing, wetting, and compacting the mix to the required density.
(Ordinance 2007-106, App. B, adopted 3/20/07)
Unless otherwise indicated on the Bid Form, the measurement and payment for the work specified in this Section shall be as follows:
Work performed and material furnished for cement stabilization of subgrade shall be measured and paid for by the square yard of surface area of completed and accepted work. The unit price bid per square yard shall include full compensation for preparing the roadbed, furnishing all material, for pulverizing, mixing and sprinkling the cement, compacting, finishing, labor, equipment, and incidentals necessary to complete the work.
(Ordinance 2007-106, App. B, adopted 3/20/07)
The applicable provisions of the following standards shall apply as if written here in their entirety:
ASTM American Society of Testing and Materials |
TxDOT Texas Department of Transportation - Standard Specifications for Construction of Highways, Streets and Bridges |
(Ordinance 2007-106, App. B, adopted 3/20/07)
Contractor shall provide a completed course of treated subgrade material containing a consistent cement mixture having no loose or segregated areas, of uniform density and moisture content, well bound and compacted for its full depth and with a smooth surface suitable for placing subsequent courses. The Contractor shall be responsible for regulating the sequence of his work, for processing a sufficient quantity of material to provide a full depth as shown on plans, using the proper amount of Portland cement, maintaining the work, and reworking of the courses as necessary to meet the requirements.
(Ordinance 2007-106, App. B, adopted 3/20/07)
Weight certificates/tickets from certified public scale for cement delivered in trucks.
(Ordinance 2007-106, App. B, adopted 3/20/07)
Adequate storage facilities must be provided to protect the cement on the project from exposure to air and moisture until immediately before it is applied. If storage bins are used, they shall be totally enclosed. Sacked cement shall be stored in watertight buildings.
(Ordinance 2007-106, App. B, adopted 3/20/07)
Cement shall not be placed or mixed when the atmospheric temperature is forty (40) degrees Fahrenheit and falling, but it may be placed and mixed when the atmospheric temperature is thirty-five (35) degrees and rising, if other weather conditions are suitable. The temperature shall be taken in the shade away from artificial heat.
(Ordinance 2007-106, App. B, adopted 3/20/07)