Structural Slab Settled 5″ with 5-48″ Void Existing HMI REP Sep 5, 2014 0000 PROBLEM The 2000 sq. ft. structural slab of a working kitchen, due to a sinkhole in the alley, had settled 2-6 inches in different areas and was starting to break. Reinforcement bars were embedded in the foundation of the 3-story structure, supported the majority of the slab. HMI's customer scanned the area with GPR (Ground Penetrating Radar) and determined that possible voids were present under the slab with varying depths ranging from 5-48 inches in some areas. The contractor was instructed to void fill and support as much of the floor in the kitchen area, as possible. With the constraints of the under slab utilities, a complete lift to original height was not achievable due to safety concerns. HMI’s 401G polyurethane was chosen for it Read More
Highway Stabilization Project HMI REP Apr 10, 2014 0000 Problem RaiseRite was called by a roadway contractor who informed us that concrete roadway panels beneath the asphalt paving on I-94 in Milwaukee, Wisconsin have voids and have been rocking back and forth as trucks would drive over the road. The roadway contractor needed to stabilize the area within 36 hours. Solution RaiseRite provided a quote to the roadway contractor. It was approved by the state DOT that polyurethane injection was the best solution to fix the area in question. The two man RaiseRite crew arrived onsite the next day at 11:00 p.m., when traffic volume was low. The contractor provided and set up traffic control. The voids were filled and the roadway was stabilized with 955 lbs. of HMI RR401 polyurethane material. After Read More
Highway Polyurethane Stabilization HMI REP Jul 18, 2013 0000 On highway I-43 in Manitowoc county,WI, the weight of moving traffic and the unstable soil caused the slab of concrete underneath the asphalt to rock back and forth as heavy vehicles traveled over it. The signs of an unstable slab of concrete are cracks forming and pot holes in the concrete. RaiseRite (www.raise-rite.com) drilled a series of injection holes through and around the troubled area. A dense lightweight polyurethane material was then injected in the holes to stabilize the concrete beneath the asphalt. The polyurethane injected has a cure time of 15 minutes to make sure the job is done fast and correctly. The polyurethane material used will not erode and assure the slab will not move. After the injections were complete the Read More
Warehouse Joint Stabilization Project Jen Mazur Jun 28, 2012 0000 By: Kirk Roberts Concrete Jack The Concrete Jack crew raised 300 linear feet of warehouse floor in 2 hours and 45 minutes in the loading dock area of a warehouse facility in Asheboro, NC. HMI RR201 was used for this project. The area was open for foot traffic during the work, which was done on a normal work day. Each joint was opened to fork truck traffic immediately after repairs.
Highway Polyurethane Project Jen Mazur Nov 7, 2011 0000 By: Dave Gauger RaiseRite Concrete Lifting Inc. www.WeRaiseConcrete.com Oconto, Wisconsin - November 3, 2011 RaiseRite was commissioned to raise a 15X45' section of Off-Ramp located in Oconto. There was a low spot across the 45' of roadway. Traffic would dip as it traveled across the problem area. Polyurethane foam was injected under the slab filling voids and stabilizing the slab. In addition to stabilizing the slab, additional polyurethane was injected to raise the slab back to level. 554 lbs of HMI polyurethane was used to complete this project. The majority of the lift was 2 1/2" and took 40 minutes. The complete project from start to finish took 2 1/2 hours to complete which included the main lift and void filling to sta Read More
Polyurethane Cell Tower Project Jen Mazur Nov 7, 2011 0000 By: Kirk Roberts Concrete Jack Problem: Due to poor compaction of fill material of a cell tower site, half of the pad was settling, which caused an equipment building and generator pad to settle. The installation contractor installed two helical piers under the equipment building to raise it back to level within weeks of original construction in 2008. During the site visit, ground water was gushing out from under the slab out of a void that was created during the piering process and was accumulating surface water. Job scope: Concrete Jack's crew raised the settled generator pad using polyurethane foam, void filled under the building using polyurethane foam, which pushed the water out from the void during installation. After void f Read More
Void Fill Under Control Temperature Room in Manitowoc, WI HMI REP Jan 13, 2011 0000 By: David Gauger RaiseRite Concrete Lifting Inc. www.WeRaiseConcrete.com DESCRIPTION OF PROJECT Void fill using high density polyurethane. THE PROBLEM: A local technological firm had constructed a control temperature room which was positioned on top of a section of factory floor which was poured with a low spot causing a void beneath the control temperature room. The room had been shimmed to level but a ¾” void remained beneath. FINDINGS: The company contacted RaiseRite Concrete Lifting to remedy the void beneath the control temperature room. RaiseRite sent out an expert in that field to diagnose the problem and estimate the cost for a void fill below the room and above the section of low poured concrete. Raise Rite found that the pro Read More
Joint Stabilization in Wrightstown, WI HMI REP Jan 13, 2011 0000 By: David Gauger RaiseRite Concrete Lifting Inc. www.WeRaiseConcrete.com DESCRIPTION OF PROJECT Joint Stabilization using high density polyurethane. THE PROBLEM: An area construction company had poured various sections of concrete at a nearby warehouse a few years ago. Due to slab curl and the curing process of the concrete, the sections had begun to move up and down when extreme pressure was applied to the loading dock and aisles throughout the warehouse. The contracting company and warehouse owners wanted to correct the problem so as not to cause more damage to the sections by stabilizing the joints and filling all voids below. Before After FINDINGS: The construction company contacted RaiseRite Read More