LENTON® INTERLOK
 For precast construction, ERICO offers the LENTON® INTERLOK rebar splicing system. It is designed to provide structural integrity between load bearing precast members such as columns, beams and shear walls.
LENTON INTERLOK uses a specially formulated cementitious grout in conjunction with the LENTON taper threaded system. It offers efficient, versatile and cost-effective connections. Features
- Convenient and flexible to use
- Helps eliminate unsightly and costly patchwork
- For all rebar sizes from 20 mm (#6) through 57 mm (#18)
- Optimizes production time while improving integrity of the structure
- Maintains structural integrity through precast sections - reinforcing steel acts as one continuous bar
- Tensile loads are transferred through the rebar independent of the compressive strength of the concrete
- Connection is not detrimental to surrounding concrete, as no heat is produced
ApplicationsTaper-threaded and grouted precast construction splices More InformationThe LENTON INTERLOK coupler is fastened to the bar by means of the LENTON tapered thread. The assembly is positioned within the formwork at the precaster’s plant prior to placement of concrete. The splice is completed at the jobsite, where the exposed dowel of the adjoining structural member is inserted into the sleeve, which is then filled with grout. The completed connection meets or exceeds international codes and standards.
How to Specify
By Name:
Mechanical splices shall be LENTON INTERLOK manufactured by ERICO
By Generic Description:
The mechanical connection shall meet building code requirements of developing in tension and compression, as required, by * . The sleeve shall be produced as a casting from Ductile Iron. One end of the sleeve shall consist of a positive locking tapered thread, while the opposing cylindrical side is designed with equally spaced concentric ribs. Grouting must be performed in accordance with the manufacturer's recommended splicing procedures.
* local standards/codes
Installation Information
1. Fasten the LENTON INTERLOK sleeve to the rebar using the positive locking LENTON tapered thread and position the assembly within the formwork using grommets or edge beam locating bolts.
In the case of pump fill applications, install inlet and outlet tubes and seal the ends with rubber stoppers. Pour concrete into the form.
2. Mix the grout filler (or cementitious mortar) according to the mixing directions on the bag.
3. For gravity fill applications: pump (using a hand operated or pneumatic grout pump) or pour the grout into the open end of the coupler and then immediately lower the precast member until properly seated and aligned.
4. For pump fill applications: position the precast member into the open end of the coupler and pump the grout into the inlet tube attached to the coupler until it flows from the outlet tube, then insert a plug in the upper outlet tube. Continue pumping until no additional grout can be pumped into the inlet tube, then plug the inlet tube. Once the grout has set, the plugs can be removed.
The grouted couplers in the precast members should be secured and undisturbed by movement, shock, or vibration until the grout has reached a compressive strength of 21N/mm2 (or 3000 psi). Typically this will occur after 1 day at 21° Celsius (70° Fahrenheit).
Note: This is a guide only. For detailed installation procedures, please refer to the LENTON INTERLOK User Manual.
US PAT. NO. 5,366,672
LENTON® INTERLOK Informational Video Duration: 1m 46s Downloads
Warning, Warranty and Limitation of Liability
WARNING
ERICO products shall be installed and used only as indicated in ERICO's product instruction sheets and
training materials. Instruction sheets are available at www.erico.com and from your ERICO customer service
representative. Improper installation, misuse, misapplication or other failure to completely follow ERICO's
instructions and warnings may cause product malfunction, property damage, serious bodily injury and death.
WARRANTY
ERICO products are warranted to be free from defects in material and workmanship at the time of shipment.
NO OTHER WARRANTY, WHETHER EXPRESS OR IMPLIED (INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE), SHALL EXIST IN CONNECTION WITH THE SALE OR USE OF ANY ERICO PRODUCTS. Claims for errors,
shortages, defects or nonconformities ascertainable upon inspection must be made in writing within 5 days
after Buyer's receipt of products. All other claims must be made in writing to ERICO within 6 months from the
date of shipment or transport. Products claimed to be nonconforming or defective must, upon ERICO's prior
written approval in accordance with its standard terms and procedures governing returns, promptly be returned
to ERICO for inspection. Claims not made as provided above and within the applicable time period will be
barred. ERICO shall in no event be responsible if the products have not been stored or used in accordance
with its specifications and recommended procedures. ERICO will, at its option, either repair or replace
nonconforming or defective products for which it is responsible or return the purchase price to the Buyer.
THE FOREGOING STATES BUYER'S EXCLUSIVE REMEDY FOR ANY BREACH OF ERICO WARRANTY AND FOR ANY CLAIM, WHETHER
SOUNDING IN CONTRACT, TORT OR NEGLIGENCE, FOR LOSS OR INJURY CAUSED BY THE SALE OR USE OF ANY PRODUCT.
LIMITATION OF LIABILITY
ERICO excludes all liability except such liability that is directly attributable to the willful or gross
negligence of ERICO's employees. Should ERICO be held liable its liability shall in no event exceed the
total purchase price under the contract. ERICO SHALL IN NO EVENT BE RESPONSIBLE FOR ANY LOSS OF BUSINESS OR
PROFITS, DOWNTIME OR DELAY, LABOR, REPAIR OR MATERIAL COSTS OR ANY SIMILAR OR DISSIMILAR CONSEQUENTIAL LOSS
OR DAMAGE INCURRED BY BUYER.
Due to a policy of continued product development, specifications are subject to change without notice.
CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH, and LENTON are registered trademarks of ERICO
International Corporation.
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