Gunite vs Shotcrete: What’s Better for Pools in Texas?

If you’re planning a custom pool in Boerne or the Texas Hill Country, you’ve probably heard the terms gunite and shotcrete used interchangeably.

This creates a lot of confusion.

The truth is:
👉 Gunite is dry-mix shotcrete
👉 Shotcrete includes both wet-mix and dry-mix processes

Let’s break it down in simple terms.

Gunite is a common name for dry-mix shotcrete. Dry ingredients travel through a hose, and most of the mixing water is added at the nozzle before placement.

This allows the installer to:

• Adjust the water content in real time
• Fine-tune the consistency during the build

👉 Because of this flexibility, many builders consider gunite a process rather than a product

Shotcrete is concrete or mortar projected at high velocity onto a surface. It can use either a wet-mix or dry-mix process.

It can be applied as:

• Wet mix: water is mixed with the concrete before pumping
• Dry mix: most mixing water is added at the nozzle

👉 Gunite is dry-mix shotcrete; wet-mix shotcrete is mixed with water before it reaches the nozzle.

One of the biggest misunderstandings is:

“Gunite is better than shotcrete”

That’s not necessarily true.

👉 Both gunite and shotcrete can achieve the same strength
👉 What really matters is the psi rating and proper installation

Strength is measured in psi (pounds per square inch).

The required compressive strength depends on the project’s engineering specifications. Neither process name establishes a strength rating.

👉 Both processes must meet the project’s specified material and installation requirements.

The material isn’t the deciding factor — the quality and engineering are.

Both gunite and shotcrete:

• Have strong compressive strength
• Have lower tensile strength (resistance to pulling forces)

👉 That’s why steel reinforcement (rebar) is critical in every pool build

Pros:

• Placement rate depends on project needs and equipment
• Generally requires less compressor airflow than dry-mix

Cons:

• Delivery and placement must suit the specified mixture
• Excess water beyond mixture limits can reduce strength and durability

Pros:

• Water can be controlled at the nozzle
• Water addition is controlled to achieve the required consistency

Cons:

• Requires a skilled nozzle operator
• Correct consistency is essential; rebound is material that bounces off the surface and should not be incorporated into the shell

The honest answer:

👉 Neither is universally better

The right choice depends on:

• Project and engineering requirements
• Access and material supply
• Crew experience
• Proper installation practices

Instead of focusing on “gunite vs shotcrete,” ask:

• What psi rating is being used?
• Does it meet or exceed engineering specs?
• Is the builder experienced with that application method?

👉 These factors matter far more than the name of the material.

In the end, a well-built pool shell—whether gunite or shotcrete—should be:

• Properly engineered
• Correctly reinforced
• Installed by an experienced team

These are important parts of building a durable pool shell.