Slab Rocking is concrete slabs constructed on unbound sub-bases can cause ‘steps’ at joints, the main cause being movement of the sub-base. As heavy vehicles such as forklifts travel over a joint, the slab on the approach side is deflected downward. When the wheel leaves, it quickly deflects upwards creating a gap of low pressure between the slab and the sub-base drawing minute amounts of material from beneath the departure slab to the other side of the joint.

Contact Foundation Technology Today

To learn more about Foundation Technology and the services we offer Visit us online at: https://foundationtechnology.com/ or call: 855.650.2211

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This program caters to the Tenant Habitability Plan & Cost Recovery Guide for Property Owners. Foundation Technology informs its customers that we work along with these programs and encourage you to facilitate these programs that have been made to make things easier.

How the Program Works:

• Up to 50% of total seismic retrofit costs may
be passed through to tenants, if approved by
HCIDLA.
• The maximum rent increase is $38 per month
for 120 months. The recovery period may be
extended until the full approved amount is
collected.
• Seismic retrofit costs are divided among all
the units.

Foundation Technology Offers Seismic Retrofitting As A Service
Foundation Technology is the leader in Seismic retrofitting. Seismic Retrofits involves modifying existing structures, so that they are more resistant to seismic activity.

Contact Foundation Technology Today
To learn more about Foundation Technology and the services we offer Visit us online at: <ahref=”https://foundationtechnology.com/”>https://foundationtechnology.com/ or call: 855.650.2211

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Earth quake is a reality and it can happen anytime. Did you know?

The following example illustrates how to determine if a newer building, constructed to the current Code, has sustained substantial structural damage and determine repair requirements for earthquake damaged building. The building does NOT require retrofitting.

Example 4 – Modern Building with Substantial Structural Damage: A timber single-family- dwelling built in 2015 wood shear walls experienced structural cracking of several plywood shear walls on the first floor. The engineer’s report identified the damaged wall will reduce the cumulative strength of the lateral load resisting system by 25%. The engineer’s evaluation shows that the pre- damaged building strength was compliant with the current Code.

 Is there Substantial Structural Damage?

Part 2 of the definition of Substantial Structural Damage for “All Other Buildings” needs to be used for a timber building. The report concluded the damaged walls constitutes more than 20% of the pre-damaged condition of the lateral force resisting system in the first story. Therefore, the damage to the building is Substantial Structural Damage.

 Is retrofit required?

As per LABC Section 3405.2.2 repairs shall be done to restore the building to the pre-damaged status.  Strengthening beyond the current Code is not required.

 What design criteria may be used for repairs?

Repairs are permitted to restore the building to its pre-damage state, using material properties and design strengths applicable at the time of the original construction. All new structural members, connections and detailing used for this repair shall comply with provisions of this Code for new buildings of similar structure, purpose and location.

Find out how Foundation Technology can assist you to meet the requirements and pass your evaluation with flying colors.

 To  learn  more  about  Foundation  Technology  and  the  services  we  offer Visit us on line at: https://foundationtechnology.com/ or call: 855.650.2211

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Foundation Technology was contacted to provide repair solutions for an integral piece of machinery at their Rancho Cucamonga foundry, which was settling due to poor soil conditions, vibration, and the extreme high weight of the machine itself.

Foundation Technology Delivered Amazing Results

The complete project took six days, start to finish, and was completed during a bi-annual plant maintenance shut down, thereby minimizing production issues. Maintenance and engineering from Gerdau were quite amazed and pleased with the speed and proficiency in which the job was completed. The machine pedestal is level, and initial reaction is positive to the reduction in vibration around the shear operation from the HMI polyurethane foam injection. Costs associated with this project versus the previous lift and level repair, are less than sealing the access holes 30%, offering even more total project satisfaction.

To learn more about Foundation Technology and the services we offer Visit us online at: https://foundationtechnology.com/ or call: 855.650.2211

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Earth quake is a reality and it can happen anytime. Did you know?

Buildings with Substantial Structural Damage to Vertical Elements of the Lateral Force- Resisting System

 Section 3405.2 through 3405.2.3 describes the requirements for damage evaluation and the triggers for seismic retrofit of earthquake damaged buildings:

Section 3405.2 – Substantial Structural Damage to Vertical Elements of the Lateral Force- Resisting System

 A building that has sustained substantial structural damage to the vertical elements of its lateral force-resisting system shall be evaluated and repaired in accordance with the applicable provisions of Sections 3405.2.1 through 3405.2.3.

 Find out how Foundation Technology can assist you to meet the requirements and pass your evaluation with flying colors.

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To  learn  more  about  Foundation  Technology  and  the  services  we  offer Visit us on line at: https://foundationtechnology.com/ or call: 855.650.2211

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The effects of global warming are already upon us. Regardless of the cause, the effects are quite apparent to those who live on or near the shoreline. As an owner of beachfront property, I am assuming you are acutely aware of the potential damage or loss to your property due to high surf and the battering waves they bring. I also assume you have spent substantial amounts of money in often futile attempts to protect you beachfront investment from the impending waves and erosion. I imagine most have failed or offered little protection. Why do I know this?

Please allow me to introduce myself.

My name is S. G. “Jerry” Bronstrup.

I am the owner of Foundation Technology, a foundation repair company specializing in engineered solutions for the repair of residential and commercial foundations. We are experts at repairing foundations that fail due to erosion, settlement and the corrosive effects of the sea. I’ve spent considerable time along the California coast looking at the effects of the encroaching sea on beach front properties and have come to the following conclusion.

And bluntly; if you own a home along the Malibu beachfront, especially in the Malibu Colony, your foundation is in trouble. Concrete, wood, or steel pilings are no match for what the advancing sea has in store for your property.
In the past year, I personally visited and inspected six properties along the Malibu shoreline, all experiencing a high level of failure due to erosion, corrosion, and wave battering. While not every property was constructed the same, the common failure was the method in which most if not all structures were connected to the earth.


Simply put, the foundations of every property I inspected in Malibu showed signs of substantial failure.
In each case, I spent considerable time researching repair solutions that would mitigate the damage from pounding surf and the corrosive effect of sea water on wood, concrete, and steel structures that were evident on every single foundation I visited.

The level of ongoing corrosion and damage I found will cause catastrophic failure.

In fact, during a recent inspection after a rather high sea, the failure was indeed substantial enough to cause the foundation to be “scoured” away, and the support timbers for the second story to settle and cause substantial damage to the house.

The common cause; a combination of corrosion, erosion, and “scour” (the effects of tidal swell on pillars and/or caissons), is setting you up for an expensive repair. We’ve already seen the effect of ‘not’ doing anything. And we have also been witness to the failures of inferior repair procedures. Just take a look here!

Another contractor attempted to stop the onslaught of the waves as they pounded this beachfront home on PCH. You can see the results of their failure behind the seawall. Doesn’t seem like much until you realize what is above.

 

That’s the bottom of the swimming pool, completely exposed. A total loss!

The property owner decided not to utilize our services and instead hired a handyman to solve his problems. The resulting damage cost the property owner well over $100,000 to repair the damage….and they still didn’t repair the seawall or the real problem.

Engineered Repair and Renovation Services that are guaranteed to give you the best defense against Mother Nature.

Nobody can guarantee with certainty that the construction or renovation of you properties foundation or seawall will hold up against what Mother Nature can throw at you. But you can be certain that when you hire.

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Slab Rocking

Concrete Slab Rocking

Concrete slabs constructed on unbound sub-bases can cause ‘steps’ at joints, the main cause being movement of the sub-base. As heavy vehicles such as forklifts travel over a joint, the slab on the approach side is deflected downward. When the wheel leaves, it quickly deflects upwards creating a gap of low pressure between the slab and the sub-base drawing minute amounts of material from beneath the departure slab to the other side of the joint. After many passages from the vehicles, a significant amount of material is moved across the joint, resulting in ‘stepping’, ultimately leading to slab cracking and slab rocking. The edges are pressed against each other causing spauling of the slab and eventual pockets, resulting in “bumps” or “ruts” that slow forklift traffic substantially. Damage and spills are often the outcome.

HMI Polyurethane Foam

Injection of polyurethane concrete lifting foam to stabilize and lift the slab, eliminating “Slab Rock” and can reduce the down time over conventional repairs from days and weeks to just hours. Slab Rocking occurs and can be eliminated in almost all heavy vehicle traffic locations.

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FOUNDATION TECHNOLOGY

BEIJING INTERNATIONAL CAPITAL AIRPORT RUNWAY REPAIR PROJECT

PRESS RELEASE

Foundation Technology, (Foundation Tech, Inc.), managed the repairing of damaged and settled concrete runway slabs at the Beijing International- PEK- Capital Airport, Beijing, China.

For more information contact: Jerry Bronstrup (jbronstrup@FoundationTechnology.com)


Foundation Tech, Inc., a California consulting and repair contractor specializing in soil stabilization and foundation repair solutions and services was selected by the largest China based airport repair and maintenance contractor to assist in repair of the Beijing Capital- PEK Airport runways.

Severe drought conditions over the past eight years in Beijing have caused a large fissure in the subsoil directly underneath the Beijing Capital Airport, extending over 2.3 kilometers. The fracture crosses directly underneath two of Beijing’s three main runways, causing severe settlement of the 60-90 cm deep concrete runway and taxiway slabs. Settlement of 7cm to 25cm for the five meter square two layered slabs has occurred along the complete length of the 2.3 kilometer crack. This has caused hazardous conditions for not only airport vehicle traffic but also for aircraft landing and taxiing along the affected areas.

Multiple attempts to repair the settled slabs on both the runways as well as taxiways has offered poor results due to the continued widening of the crack and the subsequent soil erosion and slab settlement along the entire runway. Grinding and pouring an overlayment including pumping concrete into the crack[s], to level the hundreds of five square meter slabs was not a viable option due to the time frame to cure, as well as logistical issues with installation crews and construction equipment being on an active runway.

Jerry Bronstrup of Foundation Technology suggested utilizing HMI polyurethane foam for a quick and lightweight alternative over conventional replacement methods to both level the affected slabs and fill the voids which was very effective. Ground penetrating radar was used to determine the total breadth and width of the fissure. It was then decided to utilize HMI’s RR401 heavy lift geotechnical foam due to its fast tact free time and high compressive strength skin that avoids concrete adhesion. The Wisconsin Manufacturer’s 4lb. per cubic foot foam was perfect for the job and would stand up to the airport runways and taxiways heavy loads. Subsequent onsite tests were performed to prove the feasibility of the RR401 polyurethane foam as a viable alternative for slab lifting and void fill. Over 120,000 lbs. of foam was required to complete the project.

RR401

GEOTECHNICAL POLYURETHANE FOAM

Heavy-duty polyurethane foam perfect for D.O.T. & industrial concrete repair.

RR401 is a 4 lb. per cubic foot dual component foam engineered to be stronger for lifting larger slabs. This foam will stand up to heavy loads and high traffic, and exceeds specifications required by Federal and State transportation departments across the U.S.A.

Foundation Tech, Inc. is a California contractor specializing in soil stabilization and foundation repair solutions, products, and installation services.

They offer consulting, project management, and installation services worldwide.

For more information call or visit them online: foundationtechnology.com

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The battle cry of “A true Deplorable” (based on the opinions of just about everyone in America)

Seems every day somebody is complaining about their contractor. Since I am one, I always seem to be the guy they like to complain about the “other guy” to!    On the true list of  deplorable’ s, not the Hillary or  Donald Trump versions, but the true, “personae non gratae” type deplorable that everyone in America despises;  contractors and handymen are right up there with used car salesmen, telemarketers, and snake oil salesmen.  Distrusted, hated, despised, and generally not welcome to your office holiday party.  Since I’m often thrown into that category, I’ve been growing a real complex as of late.

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If you have been watching the news about earthquake preparedness and all the recent seismic activity in California, you’ll quickly realize none of us paid any attention to that old adage about building a home on a solid foundation, because that one surely doesn’t ring true in our neck of the woods.  If you live in Southern California, you know you’re living on shaky ground…

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