QA

Can You Resurface Existing Concrete

Concrete resurfacing is a way to make old concrete look new again. A concrete coating is applied over the existing surface, offering a variety of color, texture and pattern options. This type of decorative refinishing can be done on driveways, patios, pool decks and even indoor floors.

Does concrete resurfacing last?

How Long Does Resurfacing Last? Thanks to its durability, concrete resurfacing can last a long time. Considering it’s been properly installed, well cared for and the existing concrete base is strong. A properly resurfaced floor can last from 10-20+ years.

Is it expensive to resurface concrete?

The price of concrete resurfacing typically ranges from about $3 per square foot to $25 per square foot. However, the cost of your project will depend on a variety of factors.

Can you concrete over old concrete?

You can put new concrete over old concrete. However, unresolved issues with your old concrete, such as cracks or frost heaves, will carry over to your new concrete if not taken care of. In addition, you must pour it at least 2 inches thick.

Will concrete resurfacer crack?

Concrete is a porous material, which means, throughout its lifetime, it begins deteriorating due to its structure. When mother nature adds moisture to this material, and we couple that with the weight of vehicles, that creates small cracks.

Should I resurface my driveway?

Asphalt driveways 25 years or older typically require repaving. If more than 30% needs repairs and if large cracks (greater than a quarter-inch wide and two inches deep) split the asphalt, consider repaving. An unsteady foundation is also a sign that you should start planning for a new driveway.

Can crumbling concrete be repaired?

Crumbling concrete can be repaired before crazing occurs. Crumbling concrete is not just unsightly, it may also be a sign of serious damage beneath the structure. Address the problem as soon as possible to prevent it from spreading or causing other damage, such as crazing, in which a network of random cracks occurs.

How thick can you resurface concrete?

1 Unlike other cement products, it is designed to be applied in very thin coats (no more than 1/2 inch thick), and its additives provide good adhesion to an existing slab. Concrete resurfacer is a very strong product, rated for compressive strength of about 4,500 psi.

How long does concrete overlay last?

How long is the life span of a decorative concrete Overlay? If maintained and sealed properly, the DCO can last 20 years and be a permanent topping to the concrete slab. Every 5 to 7 years it should be resealed.

How much does it cost to resurface your driveway?

How much does concrete driveway resurfacing cost? Driveway resurfacing cost with plain concrete starts from around $35 per square metre. For coloured, stencilled or stamped concrete, the concrete resurfacing cost per square metre can be $50 to $100 or more, while exposed aggregate starts from $100.

How much does it cost to resurface a 2 car garage floor?

The cost of resurfacer for a two-car garage is typically less than $200. You’ll also need to buy or rent some special tools, so expect your total cost to be about $300 for this how to resurface concrete project.

Can I pour concrete over dirt?

Long story short, yes you can pour concrete over dirt.

Whats the difference between cement and concrete?

What is the difference between cement and concrete? Although the terms cement and concrete often are used interchangeably, cement is actually an ingredient of concrete. Concrete is a mixture of aggregates and paste. The aggregates are sand and gravel or crushed stone; the paste is water and portland cement.

Can you paint over concrete resurfacer?

Though concrete is well-known for its toughness, it can degrade over time, becoming marred with pits or cracks. For resurfacing concrete to stick, however, the old concrete cannot have any finish or paint and must be cleaned before applying the resurfacing concrete.

Is it cheaper to seal your own driveway?

Sealing the driveway yourself will be cheaper than hiring a professional, but you’re still going to have to fork over some cash to do the job right. Hiring a professional to seal a driveway can cost $200 to $500, or more, according to CostHelper.

What is the cheapest form of driveway?

Generally, gravel is the cheapest material, with resin and concrete being the most expensive.

How often should you resurface your driveway?

After the initial seal, asphalt should be resealed once every three to five years. If you live in a climate with freezing winters and hot summers, consider resealing your driveway once every two to three years.

What causes crumbling concrete?

Concrete seems like a stable and permanent material, but it remains porous and will absorb water. When this water trapped inside the concrete freezes, it pushes the cement binder apart. This expansion, and the resulting contraction when the water melts again, causes crumbling.

Why is my concrete floor Crumbling?

You might have a localized or an extensive damp problem. If a concrete floor was laid by the previous owner you have no way of knowing if a dpm was installed at all/properly. Your concrete might be reacting/breaking down because of ground conditions/material used.

What is crumbling concrete?

Crumbling concrete is similar to spalling concrete, but it may literally be falling off in chunks. Crumbling concrete may start as spalling concrete and devolve until it reaches crumbling stage. However, crumbling concrete can also be from old age or from exposure to harsh elements.

Can I pour a 2 inch concrete slab?

If done properly, new concrete can often be poured right over an existing slab. For this to be feasible, the contractor needs to pour at least 2 inches thick, use smaller aggregate, and incorporate reinforcement such as welded wire mesh or fiber mixed into the concrete.

What is the minimum depth for concrete?

Minimum Thickness Of Concrete Slabs A slab is defined as a member where the panel dimension is not less than 5 times the overall slab thickness. Eurocode 2 states minimum thickness for floor slabs in buildings is 125mm.

How do you stop concrete cracks from spreading?

A concrete sealer can reduce freeze-thaw damage by reducing the water absorbed by the concrete. However, it must be re-applied periodically. There are a number of sealers available, and they usually contain the chemicals silane or siloxane. One effective product that protects concrete from cracks is Sikagard 701W.