Laserfiche WebLink
<br />Consulting Services Agreement between City of San Leandro and Last revised [MM/DD/YYYY] <br />BSK Associates for Annual Street Sealing 2019-2021 Exhibit A – Page 1 of 2 <br />EXHIBIT A <br /> <br />SCOPE OF SERVICES <br /> <br />1. UNDERSTANDING <br /> <br />The Annual Street Sealing Project 2019-21 will install approximately and 190,000 SY of micro-Cape (microsurfacing over <br />rubberized chip) plus 130,000 SY of slurry seal. The City entered into a contract with American Pavement Systems, Inc. <br />(“General Contractor”) who will furnish all labor, materials, and equipment required to construct the project. This contract <br />is to provide Material Testing Services as required for the construction of the aforementioned improvements. Inspections <br />are to be performed as required by the project specifications, and by the project manager. <br /> <br /> <br />2. SCOPE OF WORK – SAMPLING/TESTING. <br /> <br />Item Task Description Method Frequency <br />Slurry Seal/Microsurfacing Testing <br />1 Field observation and sampling of materials By Field Technician Days (7) <br />2 Determine the spread rate of slurry/microsurfacing to verify the quantity <br />placed per square yard <br />By Field Technician 7 EA <br />3 Determine the percent of residual asphalt in the slurry/microsurfacing <br />mix by extraction <br />ASTM D 2172 4 EA <br />4 Determine aggregate gradation Calf. Test. 202 4 EA <br />5 Determine sand equivalence Calf. Test. 217 2 EA <br />6 Determine durability index Calf. Test. 229 2 EA <br />7 Abrasion by LA rattler Calf. Test. 211 1 EA <br />8 Percent of crushed particles ASHTO T5 335 1 EA <br />9 Determine the properties of the asphaltic emulsion: <br />i. Viscosity <br />ii. Sieve <br />iii. Particle charge <br />iv. Residue by evaporation <br />ASHTO T59 <br />4 EA <br />4 EA <br />4 EA <br />4 EA <br />Rubberized Chip Seal Testing <br />10 Field observation and sampling of materials By Field Technician Days (8) <br />11 Determine the spread rate of rubberized binder and spread rate of <br />aggregate (chips) to verify the quantity placed per square yard <br />By Field Technician 8 EA <br />12 Aggregate gradation Calf. Test. 202 3 EA <br />13 Determine gradation and wire and fabric content of CRM Calf. Test. 385 3 EA <br />14 Test scrap tire CRM and high natural CRM separately Calf. Test. 385 3 EA <br />15 Determine the properties of the asphaltic rubber binder: <br />i. Cone Penetration <br />ii. Resilience <br />iii. Softening Point <br /> <br />ASTM D 217 <br />ASTM D 5329 <br />ASTM D 36 <br /> <br />3 EA <br />3 EA <br />3 EA <br />DocuSign Envelope ID: 2B19522E-827F-4AE4-B651-0F0F85EDF3A0