ConFoam™

A Cost-effective, Time-saving Solution

The Conco Companies produce and place ConFoam™, also known as foam concrete, which is one of the most productive, cost-effective solutions for a large variety of applications.

Our proprietary ConFoam™ is a lightweight, low-density fill material that is customized for each specific application and provides benefits that cannot be achieved with traditional construction materials. In addition, Conco has the specialized production equipment and the professional know-how to safely and skillfully place the highly flowable, cellular lightweight concrete to save projects both time and money.



Cellular Concrete Technology & Applications


ConFoam™ is a cement-based cellular concrete slurry that has a high percentage of foam entrained into the plastic mortar. Along with its fluid nature and ease of pumpability, ConFoam™ can easily fill the most difficult annular grout and void spaces, including underneath slabs or narrow, unstable trenches.

ConFoam™ can be customized to meet the specifications and strength requirements of a project by varying the water/cement ratio or by adding normal or lightweight aggregates, and fine and/or coarse aggregates. Further changes to the mixture design can include fly ash, admixtures, and other materials.

Confoam™ Logo benefits include:


No Compaction Required

Self-compacting ConFoam™ eliminates the need for mechanical compaction and is also more consistent, while at the same time, having no impact on retaining structures or deep foundations. This makes it a great fit for swimming pool demolition.

Lightweight Concrete

ConFoam™ can be produced at a weight that is considerably less than compacted base materials or native soils, and thus eliminates the need for expensive foundation solutions.

Settlement Free Construction

ConFoam™ can be produced to make the combined weight of the new structure less than or equal to the weight of the removed soil, and virtually eliminates any settlement.

Safer placement

ConFoam™ offers a safer alternative to traditional methods of pipe abandonment backfill and utility trench and excavation backfill, as it eliminates the need to put employees in the excavation area.

Easily excavatable

Unlike other CLSM concrete mixes, ConFoam™ does not achieve unexpected strength gain, which means it is easy to excavate with common construction equipment, or in the case of some low strength mixes, just a shovel.

Fast & Effective

ConFoam™ can be quickly mobilized for emergency repairs. It requires less equipment and labor than traditional concrete, making it an ideal choice for timely responses. Workers can begin filling voids within an hour of arrival. ConFoam™ also reaches 100% consolidation sooner than traditional concrete due to its self-leveling and self-compacting characteristics. Unlike traditional backfill, ConFoam™ doesn’t settle, shrink, or have unexpected strength gain.

Pipe Abandonment, Utility Trench & Excavation Backfill


The Conco Companies is an expert at producing concrete for a variety of needs.  As an alternative to traditional sand slurry backfill, Conco produces ConFoam™, a cellular concrete made from a mixture of cement, water, and preformed foam. It’s one of the most cost-effective solutions for void backfills due to its self-compaction and lightweight composition.


Confoam™ in action

Confoam™

Safely and Quickly Fills Pipes & Trenches

ConFoam™ is a dependable abandonment backfill because it self-compacts, doesn’t settle or shrink, and can be pumped across thousands of feet into pipes and trenches that are difficult to reach with traditional equipment. ConFoam™ flows at <60 psi at 7,500+ feet, a lower pressure than that of typical sand slurry mixes, and can fill entire pipelines through minimal access points. Its equipment is also quickly mobilized and can finish pipe abandonment, utility trench and excavation backfill jobs within a single day.

By customizing the ConFoam™ mixture for various densities, Conco can utilize it for a multitude of projects, of all types and sizes. It can backfill everything from abandoned sewer lines to water lines, fuel tanks, septic tanks, culverts, and more.

Confoam™

A Cost-effective, Time-saving Solution

The Conco Companies produce and place Confoam™, also known as foam concrete, which is one of the most productive, cost-effective solutions for a large variety of applications. Our proprietary Confoam™ is a lightweight, low-density fill material that is customized for each specific application and provides benefits that cannot be achieved with traditional construction materials. In addition, Conco has the specialized production equipment and the professional know-how to safely and skillfully place the highly flowable, cellular lightweight concrete to save projects both time and money.

ConFoam™ is a cement-based cellular concrete slurry that has a high percentage of foam entrained into the plastic mortar. Along with its fluid nature and ease of pumpability, ConFoam™ can easily fill the most difficult annular grout and void spaces, including underneath slabs or narrow, unstable trenches.

  • Foam Concrete
  • Swimming Pool Demolition
  • Annular Grout and Void Space Backfill
  • Pipe Abandonment, Utility Trench & Excavation Backfill
Foam Concrete

The Conco Companies offer a wide range of high-quality concrete services including our own proprietary foam concrete called ConFoam™. The lightweight, low-density fill material can be pumped into any void, hole, or as backfill; and its high fluidity and easy pumpability permit high volume placement rates that save time and money. Confoam™ also can be produced onsite per exact project specifications, and in general, any material that strengthens traditional concrete will increase the strength of foam concrete. It can also be formulated to be used in applications that require drainage.

Concrete Foam Offers Economical Solutions

The Conco Companies offer a wide range of high-quality concrete services including our own proprietary foam concrete called ConFoam™. The lightweight, low-density fill material can be pumped into any void, hole, or backfill; and its high fluidity and easy pumpability permit high volume placement rates that save time and money. ConFoam™ also can be produced onsite per exact project specifications, and in general, any material that strengthens traditional concrete will increase the strength of foam concrete. It can also be formulated to be used in applications that require drainage.

At Conco we are always looking for ways to provide our customers with cost-effective solutions that result in the best-finished products. Our ConFoam™ concrete foam is just such a solution. It offers many benefits including the fact that it can be produced at a weight that is much less than native soils or compacted base material and eliminates the need for costly foundation treatments. Additionally, it does not require mechanical compaction so it has no impact on retaining structures or deep foundations.

The fill material can be easily recycled and reused. Furthermore, since it requires fewer raw materials and eliminates or reduces the need to excavate and transport large quantities of aggregate, it is less expensive to produce.

ConFoam’s™ high-tech solutions:
  • We have specialized production equipment and highly trained crews to safely and skillfully place the highly flowable, lightweight concrete.
  • Self-leveling ConFoam™ offers the ability to fill voids in the most challenging locations as well as to enhance the load-bearing qualities of poor soil.
  • By adding fine and/or coarse aggregate, fly ash, and admixtures as well as various foaming agents, we can produce foam concrete with increased strengths and higher densities if your project requires
Swimming Pool Demolition
The Benefits of ConFoam™ in Swimming Pool Demolition

As an addition to our comprehensive roster of concrete services, Conco also provides swimming pool demolition and backfill services. Through the use of our proprietary foam concrete, ConFoam™, we are uniquely positioned to offer fast, cost-effective pool demolition. ConFoam™ is a highly flowable, cement-based slurry that is useful in a variety of applications and saves you time and money over other swimming pool backfill materials.

  • Reliable expertise – Our experienced teams are experts in ConFoam™ production and trained in its skilled and expedient pumping and placement.
  • Compliance with pool demolition requirements – ConFoam™ is an approved “clean fill” and complies with regulations regarding Demolition, Drainage, and Compaction Plans for post-demolition building on the backfilled area.
  • Reduced installation time – With the ability to place 500 cubic yards of ConFoam™ in 8 hours, our teams can complete a pool backfill project in one shift.
  • Hassle-free compaction – ConFoam™ is a self-compacting material that achieves compaction 24 hours after placement. No need for the additional time or equipment required to compact other backfill materials like soil or gravel.
  • Lightweight alternative – ConFoam™ reduces loads on retaining structures and is ideal for use on poor soils due to its lightweight characteristics.
  • Safer placement – ConFoam™ reduces job site safety risks because its placement does not require employees to enter the excavated area.
Annular Grout and Void Space Backfill

At The Conco Companies, we reduce costs and installation time by utilizing our proprietary foam concrete ConFoam™ for multiple applications, including annular grout and void space backfill. ConFoam™ is a cement-based slurry with a foaming agent that is highly flowable and doesn’t settle. It’s often referred to as “liquid backfill,” because it flows smoothly and completely fills voids.

A Customizable Solution

Conco adjusts the density of ConFoam™ for each application for optimal results. When used for annual grout backfill, ConFoam™ is produced at a lighter density to prevent the carrier pipe from floating. When produced as a void space backfill, the density is customized for compatibility with surrounding structures and soil conditions.

ConFoam™ also has low viscosity, which allows it to be pumped across thousands of feet to locations that otherwise couldn’t be reached by traditional backfill. Traditional backfill might require an expansion of the excavation site just to make room for equipment and workers, while ConFoam™ requires less accommodation. Workers also don’t need to be in excavation sites to install ConFoam™. They can simply use hundreds of feet of hose to pump ConFoam™ into out-of-reach voids that’d otherwise be problematic for traditional backfill.

Fast and Effective Emergency Relief

Conco produces our proprietary ConFoam™ to be quickly mobilized for emergency repairs. It requires less equipment and labor than traditional concrete, making it an ideal choice for timely responses. Workers can begin filling voids within an hour of arrival. ConFoam™ also reaches 100% consolidation sooner than traditional concrete due to its self-leveling and self-compacting characteristics. Unlike traditional backfill, ConFoam™ doesn’t settle, shrink, or have unexpected strength gain.

Superior Alternative to Other Backfill Methods

ConFoam™ doesn’t have the drawbacks of other backfill methods. Backfilling with layers of aggregate base material requires intensive labor, and difficult compaction, and leaves you with a backfill that has a tendency to settle and be washed away. Another backfill material, which is concrete-based and called controlled density fill (CDF), doesn’t flow as well as ConFoam™ and can be difficult to excavate because it gains strength over time.

There are many other benefits to using ConFoam™ as annular grout and void space backfill, not limited to:

  • Proven Expertise – Conco teams are experienced at producing and placing ConFoam™.
  • ConFoam™ replaces the need for Expanded Polystyrene Geofoam Blocks 
  • Self-Compaction – ConFoam™ doesn’t use mechanical compaction or compaction testing.
  • Cost-Effective – ConFoam™ reduces costs associated with transportation, equipment, and labor when compared to traditional backfill.
  • No Waste – ConFoam™ is produced on-site as it is needed. Production stops once the project is filled, reducing the carbon footprint.
Pipe Abandonment, Utility Trench & Excavation Backfill
ConFoam™ Safely and Quickly Fills Pipes

ConFoam™ is a dependable abandonment backfill because it self-compacts, doesn’t settle or shrink, and can be pumped across thousands of feet into pipes that are difficult to reach with traditional equipment. ConFoam™ flows at <60 psi at 7,500+ feet, a lower pressure than that of typical sand slurry mixes, and can fill entire pipelines through minimal access points. Its equipment is also quickly mobilized and can finish pipe abandonment jobs within a single day. When the pipes decay, the rigid structure of ConFoam™ will significantly reduce the risk of underground voids.

By customizing the ConFoam™ mixture for various densities, Conco can utilize it for a multitude of projects, including pipelines of all types and sizes. It can backfill everything from abandoned sewer lines to water lines, fuel tanks, septic tanks, culverts, and more. ConFoam™ is also a quicker and more cost-effective choice than removing decommissioned pipelines, which disrupts communities and causes traffic congestion.

Additional benefits of using ConFoam™ for pipe abandonment backfill are:

  • Self-Compaction – ConFoam™ doesn’t need mechanical compaction or compaction testing.
  • Customizable – ConFoam™ can be produced to match the weight of the soil surrounding the pipeline.
  • Lightweight – ConFoam™ can be produced to weigh less than compacted base materials or native soils.
  • Quicker and Safer Placement – ConFoam™ installation uses less equipment and manpower than traditional backfill methods. Workers don’t need to be in the excavation site, reducing risk of injury.
  • Low pressure delivery – pump long distances without having to put excessive pressure on the pipe itself.

Since 1959, The Conco Companies has proven our expertise in an array of concrete services. We continue to improve our facilities to better serve the growing market for commercial, industrial, and public projects. Contact The Conco Companies for information on how you can save time and money with ConFoam™ pipe abandonment backfill.

The Conco Companies is an expert at producing concrete for a variety of needs. As an alternative to traditional sand slurry backfill, Conco produces ConFoam™, a cellular concrete made from a mixture of cement, water, and preformed foam. It’s one of the most cost-effective solutions for void backfills due to its self-compaction and lightweight composition.

ConFoam™ Safely and Quickly Fills Pipes & Trenches

ConFoam™ is a dependable abandonment backfill because it self-compacts, doesn’t settle or shrink, and can be pumped across thousands of feet into pipes and trenches that are difficult to reach with traditional equipment. ConFoam™ flows at <60 psi at 7,500+ feet, a lower pressure than that of typical sand slurry mixes, and can fill entire pipelines through minimal access points. Its equipment is also quickly mobilized and can finish pipe abandonment, utility trench and excavation backfill jobs within a single day. By customizing the ConFoam™ mixture for various densities, Conco can utilize it for a multitude of projects, of all types and sizes. It can backfill everything from abandoned sewer lines to water lines, fuel tanks, septic tanks, culverts, and more. When the pipes decay, the rigid structure of ConFoam™ will significantly reduce the risk of underground voids.

ConFoam™ Takes Workers & Equipment Out Of Excavations

ConFoam™ is a low-viscosity material that is easier to pump than sand slurry, and guarantees better compaction and less settlement than traditional concrete. It achieves 100% consolidation, even in areas difficult to reach with traditional equipment. Workers don’t need to dig large excavation sites just to accommodate compacting equipment. Workers also don’t need to be in the excavation site during installation, and materials don’t need to be imported and stockpiled.

At The Conco Companies, we’re always looking for ways to reduce installation time, equipment, and labor needs. That’s why we offer ConFoam™, a low-density fill material created by mixing a foaming agent into a cement-based slurry, as a utility trench and excavation backfill alternative to traditional concrete. ConFoam is an alternative for traditional concrete, and is produced on-site in the exact amount necessary. Also called “liquid backfill,” its high flowability allows it to reach the deepest voids and eliminate the need for compaction testing.

Wasteless production and easy installation makes ConFoam™ a better choice for lower cost and a smaller carbon footprint. Furthermore, ConFoam™ is a rigid material that doesn’t settle over time, avoiding the need for rework. If removal is necessary, ConFoam™ can easily be excavated by hand tools including shovels and chainsaws.

Other benefits of using ConFoam™ as a utility trench and excavation backfill include:

  • Reducing the dead load over existing pipe structures or poor soils
  • Providing excellent load-bearing characteristics under roadways and public spaces
  • Eliminating the need to shore deep excavations before filling them
  • Avoiding the challenge of meeting compaction requirements

Conco’s goal is to be the top supplier of concrete services in the Western U.S. and to bring our expertise and professionalism to each project. We continue to improve our facilities to better serve the growing market for commercial, industrial, and public projects. Contact The Conco Companies for information on how you can save time and money with ConFoam™ utility trench and excavation backfill.

ConFoam™ FAQs

  • What is ConFoam™?
  • How does ConFoam™ differ from traditional concrete?
  • What are the benefits of ConFoam™?
  • What can ConFoam™ be used for?
  • What is the density of ConFoam™?
  • Is ConFoam™ permeable?
  • How is ConFoam™ installed?
  • Is ConFoam™ easy to excavate?
  • Is ConFoam™ environmentally friendly?
What is ConFoam™?

ConFoam™ is a cellular concrete made from a mixture of cement, water, and preformed foam. It’s a highly flowable lightweight material most often used as a backfill or subbase replacement. Simply put, ConFoam™ is “liquid backfill.”

How does ConFoam™ differ from traditional concrete?

Unlike traditional concrete, ConFoam™ is highly flowable and nearly self-leveling, which requires little placement labor. Installation takes less time and uses less labor, material, transportation, and testing.

What are the benefits of ConFoam™?

ConFoam™has a lightweight composition that applies minimal pressure to existing structures but can achieve 100% consolidation without mechanical vibration. This reduces or eliminates the need to brace walls during backfill.

Its fluid nature makes it easy to pump and fill hard to reach voids, including underneath slabs and around pipes. Installation is easy enough that employees don’t need to stand in the excavation area during placement. It also doesn’t need compaction testing.

There is virtually no settlement with ConFoam™, but unlike traditional concrete and controlled low-strength material (CLSM) mixes, it is also easily excavatable should the need arise.

What can ConFoam™ be used for?

ConFoam™ can be customized for many applications, not limited to backfilling voids, filling abandoned pipes and tanks, “foam filling” trenches to reduce weight on pipes after settlement, and creating sub-bases for highways.

What is the density of ConFoam™?

The density of ConFoam™ varies based on its application, because it can be produced at multiple densities. Low-density ConFoam™ ranges from 20-50 pcf, while high-density ConFoam™ is 70 pcf and above.

Is ConFoam™ permeable?

ConFoam™ can be customized as water permeable with a pass-through rate comparable to sand. This particular customization is ConFoam™ Drain 27, which uses a porous foam to allow water to freely travel though.

ConFoam™ Drain 27 weighs 27 pcf when it’s dry and can almost hold its own weight in water. As a sub-base, this prevents water from popping up the surface layer.

How is ConFoam™ installed?

Installation is simple and quick. ConFoam™ equipment is easily mobilized to pump across long distances and elevations not accessible by traditional mobile equipment and field personnel.

Pumping can begin in less than an hour upon arrival at the site. 1,000 cubic yards can be pumped a day, and all compaction takes place without needing personnel in the excavation site.

Is ConFoam™ easy to excavate?

ConFoam™’s lightweight composition makes it easy to remove with a shovel, saw, or chainsaw.

Is ConFoam™ environmentally friendly?

The carbon footprint of ConFoam™ is far smaller than that of traditional concrete and has no impact on retaining structures or deep foundations. It’s produced as it’s pumped, making it impossible to have waste. Less equipment is required than with traditional concrete, so there is less equipment transport and traffic congestion. Additionally, ConFoam™ doesn’t settle overtime, so it doesn’t need to be reworked. The fill material can be easily recycled and reused.


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