What is difference between gunite and shotcrete?

Asked by: Jessica Cook

The major difference between the two is that shotcrete is applied pre-mixed with water, so it simply hardens where it falls. On the other hand, gunite is applied as a dry plaster which mixes with water as it leaves the hose. Opting for a gunite pool gives you a few advantages over shotcrete.

Is shotcrete as strong as concrete?

The ability to build in very tight spaces and “free form” applications make it very simple to build pools of any shape. Higher compressive strengths than cast-in-place concrete. Typical compressive strengths of shotcrete are in the 6,000 to 7,500 psi range. Lower construction costs.

Is gunite the same as cement?

Gunite pools use a rebar framework that is sprayed over with a concrete and sand mixture rather than being poured like regular cement. This makes gunite highly durable and flexible in that it can be made into many different shapes when it comes to in-ground pools.

What is an advantage to shotcrete?

The use of shotcrete-sprayed concrete in construction activities makes the structure less porous which increases the bond strength and also helps in lowering the construction time and reduces costs as well.

Why is it called gunite?

For gunite, water is added to the dry concrete mix at the gun-shaped nozzle opening (hence the name “gunite”). The concrete is made in the air right before hitting its target. Shotcrete is different in that it is trucked to your property wet in a cement truck.

Which is more expensive gunite or shotcrete?

Cost. Because of the relatively simple construction process, gunite pools are generally noticeably cheaper than shotcrete or typical concrete pools.

Is shotcrete cheaper than concrete?

In addition, shotcrete — while less expensive than poured concrete — is more expensive than gunite. Finally, shotcrete takes a significant amount of time as compared to poured concrete, making it a less than ideal choice for large foundations, structural piers or other large projects.

Whats stronger gunite or concrete?

Benefits of gunite:
Higher compressive strength than shotcrete (7,000 – 9 ,500 psi). No shrinkage cracks formed. The material for gunite getting dryer, will become harder on curing.

Is shotcrete different than concrete?

Shotcrete is a wet- or dry mix concrete that is pneumatically propelled at high velocity through a hose and nozzle that does not require conventional forming. CIP concrete offers specific advantages over shotcrete, particularly when it comes to preventing water ingress: Superior structure to eliminate voids.

Is gunite pool better than concrete?

Unlike concrete, when building gunite pools, you can stop and start without any problems, which will help give a smoother finish. With a skilled nozzleman, the mix of cement and water can be adjusted at the point of delivery as required, while it is also less prone to cracking than concrete.

Can shotcrete get wet?

Shotcrete needs to be protected from rain until it obtains its final set, usually 4 or 5 hours. Following final set, it should be wet cured for at least 4 days, preferably 7 days if possible. The exposure to rain would prove beneficial as the rain would assure the presence of moisture for continued curing.

Is gunite a watertight?

Gunite or shotcrete is the structural element in swimming pool construction and is not intended to be the water sealing media. The sealing of the pool is accomplished by the application of a water resistant lining to the shotcrete or gunite surface usually immediately prior to filling the pool.

What is the difference between Marcite and gunite?

Gunite, marcite, and concrete pools are the same thing, just different names for them. Complete Pool Re-plastering Every 3-7 Years at $3500.00 to $8000.00 NO JOKE! Excessive Use of Electricity – because pump must run longer, to inject more chemicals, to keep algae from building up in the concrete poors.

What is the longest lasting pool finish?

Tile Finishes

Tile Finishes
Though tile is the most expensive pool finish and takes longer to install than plaster and aggregate, it’s the longest lasting pool surface. With proper application and minimal maintenance, tiles should never need to be replaced. Tile pool finishes come in ceramic, porcelain, glass and stone.

How long will a gunite pool last?

But a properly built Gunite pool can and should last for 100 years or more, with no risk of cracking whatsoever. We’ve been building Gunite pools for more than 40 years (more than 4000 swimming pools), and we’ve never had one crack yet.

What pool surface is best?

Quartz Aggregate
Quartz is the most cost-effective pool aggregate finish and the first step up from a traditional plaster finish. A mixture of cement, colored quartz, dyes and additives create this look. Colored quartz is achieved by coating crushed quartz with ceramic.

Can gunite pools be salt water?

If you’re looking for a simple answer, the answer is yes. Saltwater chlorinators are perfectly safe for gunite pools. The biggest issues reported when using saltwater chlorinators with gunite pools have to do with the tendency of the plaster to stain over time when coming into contact with salt.

What is the cheapest pool finish?

Plaster finishes are the cheapest and easiest to install, but they lack durability. Aggregates can be the most attractive but are slightly more expensive and more time-consuming. Tile finishes are the most expensive and take the longest, but their durability is top-notch.

Can gunite pools be smooth?

The crew trowels the gunite smooth and lets it sit for a week or two before applying a smooth finish to the rough surface. The most popular finish is called plaster (actually a mixture of cement and marble sand), but a lot of people finish their pools with special concrete paint or pebble surfaces.

What happens if you dont water shotcrete?

Lack of curing and exposure to windy, hot, or dry conditions will certainly increase the potential for shrinkage and cracking of the concrete. Lack of curing will prevent the concrete from achieving its maximum potential strength.

What is the easiest type of pool to maintain?

fiberglass pools

People who have heard the buzz about fiberglass, but don’t yet have all the details will frequently ask us, “What are its advantages?” When they do, we humorously ask, “How much time do you have?” Not only are fiberglass pools the easiest type to own and maintain, there are many other benefits as well.

Why do gunite pools crack?

A common cause with pool cracks is from too-thin gunite used during the installation process. During the construction process, the gunite might not adhere properly to the steel framework. When this occurs, the gunite “rebounds,” or bounces back after application. Rebound gunite should be removed and thrown away.

Can a gunite pool be left empty?

Your in-ground gunite pool is designed to hold water. The pressure of the thousands of gallons in the pool’s bowl helps the gunite hold its shape and anchors it in the ground. When you remove the water from a gunite pool and leave it empty, you run a significant risk of damaging your pool.

How often should you resurface a gunite pool?

7 to 10 years

On average, gunite swimming pools last 7 to 10 years before they need to be resurfaced. When that time comes, it’s important to know what options are available so that you can pick the best choice for your backyard space.

Is a gunite pool worth it?

A Solid foundation: A gunite pool is perfect because of its amazing design versatility. These pools last the longest of all inground pools and often feature the best warranties. Gunite pools do not need wooden frameworks to hold the shape, so building is simpler than standard concrete.

Can a gunite pool be heated?

Optimizing Gunite Pool Heat
You don’t need to be a polar plunger to enjoy the pool beyond August. All you need is a higher temperature for the water. This doesn’t mean you have to turn your swimming pool into a sauna, it just means you can raise it up a notch to take the bite out of the autumn air.

Which type of inground pool is cheapest?

Vinyl Pools

Most affordable inground pools – Vinyl Pools
Generally, vinyl liner pools have the lowest initial costs. Thus, you will spend the least amount of money purchasing a vinyl liner pool. On average, vinyl liner pools cost $35,000 to $65,000 to install. Homeowners can customize this pool into various shapes and designs.