659.3(e) 659.3(f) square inch of clean and dry compressed air, all surfaces to remove all dust, debris, and deleterious material. Do not apply HFST applications on new asphalt pavements until after a mandatory 30- day cure period.
blast all surfaces to remove all curing compounds, loosely bonded mortar, surface carbonation, and deleterious material. Comply with the International Concrete Repair Institute (ICRI) standard for surface roughness (CSP) 5. Provide the necessary concrete surface profile chips to visually verify the surface preparation. After shot blasting, vacuum sweep or air wash using a minimum of 180 cubic feet per minute and 80 pounds per square inch of clean and dry compressed air, al l surfaces to remove all dust, debris, and deleterious material. Do not apply HFST on concrete surfaces or repairs that are less than 28 days of age.
size of each individual HFST installation site. Control operations to minimize and maintain a safe and unobstructed passageway through the work zone for all traffic. The Representative may suspend all operations if there are any safety concerns, such as excessive dust or poor visibility. Do not allow the mixed binder material to be exposed, separate, cure, dry, or otherwise harden in such a way as to impair retention and bonding of aggregate. Remove and replace any b inder that becomes contaminated at no additional expense to the Department. Immediately remove loose aggregate that falls onto any part of an active adjacent travel lane after the traffic is temporarily held. Contractor equipment and traffic are not allowed on the HFST during the curing period.
Table C Allowable Application Methods Site Size (Square Yards) Application Method Less than 300 Section 659.3(f)1 Hand Mixing and Manual Application, Section 659.3(f)3 Automated Continuous Application 300 to 2,000 Section 659.3(f)2 Semi Mechanized Application or Section 659.3(f)3 Automated Continuous Application * Larger than 2,000 Section 659.3(f)3 Automated Continuous Application * * Hand Mixing and Manual Application is allowed at sites as an alternate method only where the automated continuous or Semi -Mechanized equipment cannot physically be used because of access and geometry related constraints.
binder components. Provide a clean, dry, container large enough to blend and mix the proper proportions of the binder. Uniformly mix the