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Engineer Resources

High-Density Polyurethane Foam

Polyurethane injections can provide engineers with a cost-effective means of lifting settled concrete. The process works on concrete highway slabs, industrial floors, curled slabs, and even concrete sidewalks. Due to the proprietary nature of the trade, EFT does not post technical information on polyurethane foams online. For more information, please contact us and we can help provide technical assistance to your project.

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General Properties of Slabjacking Materials

Properties for traditional slabjacking grouts can vary depending on the mix design. Traditional cement grouts can be adjusted to modify the properties of the mix. Polyurethane grouts vary greatly from cement grouts. This chart is intended for general comparisons only.

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Engineering Specifications for Helical Piles

Specifications for helical pile installations for download.

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Foundation Underpinning Brackets

Foundation brackets are used to underpin existing foundation walls. These specialty brackets work with helical piles, resistance piles, and drilled hollow-bar micropiles.

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Solar Panel Supports

Helical piles can be a cost-effective system for supporting solar panels. Because of their vibration free installations and eco-friendly characteristics, contractors can install the helical pile supports in environmentally sensitive areas for solar projects.

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Helical Boardwalk

Helical piles can be used for supporting boardwalks over environmentally sensitive areas.

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Waterproofing Products

Waterproofing can require the use of a variety of drainage technology. Below are some brochures for waterproofing products.

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NEWS & ARTICLES - View All
Polyjacking: New Technique for Concrete Raising
Polyjacking avoids costly demolishing and replacement methods, allowing business to run smoothly around the concrete restoration project and avoiding down time. Polyurethane typically cures within 15
Polyurethane Foam Injections for Concrete Raising
Polyurethane foam provides superior structural characteristics to concrete raising projects. It's super-lightweight yet strong and durable qualities makes it a perfect
Curled Slab Repair with Polyurethane Foam
Fortunately, EFT offered an even better solution: a cutting-edge method of slabjacking called Polyjacking™ . This technique, now widely used by engineers in western states,
Golf to Support the Arthritis Foundation
On-line registration is now open for the 4th annual EPT Golf Outing, once again hosted by Cyprian Keyes in Boylston, MA. The 18-hole event will take place on Friday, June 10, 2011 (rain date: Saturday
CASE STUDIES- View All
EFT: Repair of Tripping Hazard for Town of Westford, MA
Problem: Frost heaving had affected the concrete walkway leading to the Highway Department, creating a major tripping hazard. One of the concrete slabs had heaved almost an inch over the winter
Slabjacking at Harvard Graduate School - Boston, MA
EFT provided slabjacking work for a settling concrete slab at the Harvard Graduate School in Boston, Massachusetts. A cement slurry was injected through the concrete to fill the void below.
EFT Eliminated Tripping Hazards for Concrete Walkway at Restaurant
Problem: The concrete walkways around the existing restaurant had differentially settled, causing multiple significant tripping hazards to pedestrians. The concrete slabs were reportedly poured on fro
Mudjacking for Sidewalk Repair | Marlboro, MA
Problem: Miles of concrete sidewalk had differentially settled, causing numerous tripping hazards for pedestrians. Furthermore, the pool patio for this luxury apartment complex had differentially sett
Hollow-Bar Micropiles Support Settling Foundation
The site contained about 15-20 feet of buried blast rock fill. The difficult soils would only accommodate a drilled piling system capable of advancing through the rock fills.
Mudjacking for Concrete Raising - Revere, MA
EFT used a pressure grouting process, commonly known as mudjacking and slabjacking, to lift about 200 feet of sunken concrete. The concrete walkways were located outside of a busy commercial building
Curled Slab Repair with Polyurethane Foam Injections
Four acres of concrete slabs experienced a phenomenon known as slab curling. The concrete slabs effectively curled upwards and were cracking and deteriorating from heavy forklift traffic.
TESTIMONIALS - View All
Slabjacking repaired the tripping hazard in minutes
“They came in and jacked the adjoining slab. In half an hour, it was all done. It was a significant savings for us over the other options.”
Slabjacking Solved Our Concrete Problems
“I was very pleased, they went through the entire property and fixed everything in a couple days. The alternative would be to grind the hazards out or replace them, which would be very labor intensive and noisy, and we can’t have that in a residential setting such as ou
Our Pool Patio was Repaired in a Few Days
"Our pool patio had dramatically settled. The concrete dipped and was an eyesore. Slabjacking made the patio look like new. I was very pleased with the results."
CREDENTIALS - View All
Deep Foundations Institute
The Institute is organized to serve as a primary means through which members of the Institute may participate in improvement of the planning, design and construction aspects of deep foundations and deep excavations. The basic mission of the institute includes but is not limi
American Society of Civil Engineers
Founded in 1852, the American Society of Civil Engineers (ASCE) represents more than 140,000 members of the civil engineering profession worldwide and is America's oldest national engineering society
       
 
 
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