1091.1DESCRIPTION —This work is the preparation and sealing of cracks with epoxy resin mixture,
excluding overhead sealing.
1091.2MATERIAL—
Type I, Grade 1, Section 706.1, for epoxy injection and from a manufacturer listed in Bulletin 15.
to hold injection fittings firmly in place and to resist injection pressures adequately to prevent leakage during injection.
1091.3CONSTRUCTION—Construct as directed and as follows:
particles, and material. Remove unsound concrete and mortar as directed. Glue injection ports in place at spacings as recommended by the manufacturer. Bevel cracks, as directed, to facilitate installation of injection ports. Seal the surface and areas surrounding the entry ports with surface seal. Apply seal so that the epoxy injection resin is sealed until initially cured.
with a minimum 180 second mixing time using a low speed (400 rpm to 600 rpm) electric drill with an approved mixing paddle. The mixing may also be accomplished by an injection machine capable of metering and mixing the specific proportions of components within a tolerance of ± 5%.
the epoxy with a hand held gun, pressure pot, or injection machine or as recommended by the manufacturer. Start injection at the lowest point on the crack. When the material begins to flow from the next higher entry port, remove the nozzle, plug the port, and insert the nozzle in the next higher entry port. Continue the operation until the crack is completely filled. After the epoxy material has achieved an initial cure, remove the entry ports and, if necessary, patch the areas with the same material used to seal the rest of the crack surface.
is below 50F.
1091.4MEASUREMENT AND PAYMENT—
The proposal will include an item and a predetermined amount of money for Epoxy Injection Crack Seal. The contract item will have a unit of measure of D ollar, a unit price of $1.00, and a quantity equal to the predetermined amount. Due to the contingent or unpredictable nature of the work being performed, the provisions of Section
110.02(d) are not applicable to this item
Measured and paid for, under the Epoxy Injection Crack Seal item as follows:
before performing the work. When applicable, agreement is also required with the FHWA.
Get an email when 1091 changes
Pennsylvania revises spec sections through supplementals and new editions. We check this one every week and email you the day it changes. Free, no account.