ERICO LENTON INTERLOK Rebar Splicing System - Manual (Page 24)

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2.5 Pump Fill Installation Instructions For HY10L Filler Material
(Vertical, Horizontal and Inclined Application as Shown in Figure 1)
The HY10L filler material is designed to be used with the LENTON ® INTERLOK rebar splicing system. Unauthorized use of
other grouts will void all warranties, whether expressed or implied. It is important that all individuals responsible for grout
installation be properly trained.
To assure proper filling of the couplers during the pump fill application, it is important to follow these important guidelines.
1) Check the lengths of the protruding dowel to make sure the dimensions meet those on the Placing Drawings. If the
protruding dowels are too long, they may be cut to the correct length. If the dowels are too short, the panels should not
be used and the resident engineer should be contacted.
2) Before beginning work with the HY10L, remove all debris, oil, dirt, and moisture from the areas, rebars, and couplers to
be grouted. Shine a light and blow air into the inlet and outlet tubes to make sure they are free of obstructions and to
confirm a clear passage. Make sure all panels and forms are securely anchored to prevent movement during placing and
curing.
3) Install panel using normal industry practices, using sealing disks and sealing mortar. Refer to Pages 2-5 of this manual for
correct dowel lengths. NOTE: Check to make sure no sealing mortar has entered the coupler. Check that the panels are
properly shimmed and leveled.
4) To permit rapid and continuous work with the HY10L, it is recommended that all necessary tools and materials be on
hand and as near to the work area as possible. Refer to the Materials and Equipment List on the HY10L bag and to the
Component List located in the manual for tools and materials needed for proper pump fill installation.
6) To make sure the pump is clean and free of obstructions, fill the hopper with potable water and operate the pump.
This will also prime the pump and lubricate the inside of the hopper, pump, and hose. Continue to operate the pump
to expel all the water from the hopper and hose.
7) Mix the HY10L according to the mixing directions on the bag. Use only full bags of HY10L for each batch made.
DO NOT MIX grout in the pump hopper.
8) Pour the mixed HY10L into the hopper of the pump, and operate the pump several times to push out any water/cement
slurry that may remain in the hose.
!!CAUTION!! DO NOT USE this water/cement slurry in the coupler as it may result in reduced connection performance.
9) Once a continuous stream of HY10L is flowing from the nozzle, insert the nozzle into the inlet tube at the lower end of
the coupler, as shown.
10) Pump the HY10L into the coupler slowly and continuously until it flows evenly and freely from the outlet tube on the top
of the coupler. It is recommended that the grout be pumped slowly. This will allow time for excess air bubbles to escape
from the HY10L.
11) Once the HY10L flowing from the outlet tube is free of air bubbles, stop pumping and insert a plug in the upper outlet
tube. Continue pumping until no additional grout can be pumped into the inlet tube. Then remove the nozzle from the
inlet tube and quickly plug the inlet tube to prevent any escape of HY10L from the coupler. DO NOT REMOVE THE STOPPERS
until after the HY10L has reached final set (usually 1 day to harden). Premature removal of the stoppers may allow some of
the HY10L to leak out of the inlet tube thereby allowing voids in the coupler which will result in decreased connection
performance.
NOTE: Check the joints between the precast panels during and immediately after grouting. If the HY10L has leaked out
of the joint, remove it immediately with flushing water to avoid unsightly rust stains. Check that no HY10L has
leaked out of the coupler and that it is properly filled.
It is recommended that all grouting operations are inspected by the engineer to make sure that all the manufacturer’s
recommended procedures and all applicable building codes have been observed.
5) A hand-operated or pneumatic grout pump may be used to place the HY10L.
Contact ERICO for recommended grout pumps.
NOTE: Before using the grout pump, carefully read and understand the Pump Users Manual.
It is important to follow all the manufacturer’s recommended guidelines regarding
safety, operations, service, and maintenance.