Adjustment of materials for chemical modification that exceeds the limits of
215.03will be included in a change order fo r materials only and paid for as chemical
modifier adjustments. If mix design test results show that the chemical modifier as bid by the Contractor is not appropriate and the strength of the modified soil can not be achieved, a price adjustment will be made for the use of portland cement. The price adjustment will be calculated at a cost equal to the difference in the invoice cost of the chemical modifier found to be appropriate for use and the invoice or quoted delivered 170 cost of the chemical modifier as bid by the Contractor. This adjustment will be included in a change order and will be paid for as chemical modifier adjustments. Fly ash will not be considered for price adjustment. Payment for chemical modifier adjustments will be made for direct delivered material costs incurred by the Contractor in accordance with 109.05. Payment will be made under: Pay Item Pay Unit Symbol 180 Chemical Modificati on, Soils, ____ _____ ................................ SYS material
The cost of performing the laboratory tests, providing a qualified geotechnical consultant, scarification of th e soil, spreading and mixing of the chemical modifier and soil, compaction of the resultant mixture, shaping the soil, work required due to adjustments of modifier proportioning, additional modification required due to weather conditions, correction of deficient areas, water required for the modification process, modified soil trimming, moisture testing, gradation testing, proofrolling, and all operations needed to meet the requirements of this specification shall be included 190 in the cost of the pay items of this section.