What happens when you over finish concrete?
Never overwork or over finish the surface of any exposed concrete slab. This brings too much fine material to the surface, works out the designed air entrainment*, and will weaken the surface of the slab leaving the top of slab more vulnerable to freeze/thaw damage and sheet scaling*.
Can you smooth out concrete after it dries?
It is possible to smooth concrete after it dries, but in many cases, it requires a fresh layer of concrete over the top of the dried surface. This can allow you to keep the surface smooth and even, even though the concrete is completely dry.
What is Trowelling of concrete?
Trowel-finished concrete floors are seamless surfaces that recreate the concrete effect. They can be applied to any kind of surface, indoor and outdoor, horizontally or vertically. The decorative effects that can be obtained with a trowel-finished concrete surface are several and always customizable.
How thin can you pour concrete over concrete?
How Thin Can You Pour Concrete Over Existing Concrete? The thinnest that is usually used when pouring concrete, in general, is about 2 to 2 ½ inches. That also applies to this pouring new concrete over old concrete. Any thinner than 2 inches would be too thin.
What does Trowelling mean?
transitive verb. : to smooth, mix, or apply with or as if with a trowel.
Can you put another layer of concrete over 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.
What does a bad concrete job look like?
Honeycombing This sign of poor workmanship looks like multiple air pockets and voids in the concrete. This may look like rough surfaces on the exterior but can present as dangerous empty spaces deep inside the cement.
Can you fix a bad broom finish on concrete?
There are two things you can do fix the rough finish. One is, you could grind or polish the surface which would remove the rough broom finish and smooth the surface of the concrete. Some of the aggregate would be exposed giving you a nice smooth decorative look to your sidewalk and patio.
What is concrete mottling?
Mottled concrete is irregular shapes of different shades of white- gray to gray-black. These blotches are restricted to the surface, normally only 1/32″ to 1/8″ deep. They can diminish over time but usually are permanent. The concrete is almost always sound and meets specification.
Can you sand down concrete?
Can You Sand Concrete? Even though concrete is a very hard material it is possible to sand concrete but it can only be done with the correct abrasives. Always opt for diamond grinding wheels or diamond polishing pads when sanding concrete.
What is the concrete finishing process?
Concrete finishing is a process that strives to create a smooth, durable surface. When finishing concrete, timing is crucial and you must pay close attention to the condition of the concrete.
What happens if concrete is too wet to finish?
If the concrete is still quite wet and forms ridges when you move on to the next step, wait longer. If the concrete becomes too hard and dry to finish properly, throw additional water onto its surface.
How do I finish my concrete?
Finish by cutting grooves at intervals in your concrete before it dries to reduce the risk of cracking in the future. For tips on how to give your concrete a trowel or broom finish, and how to cure your concrete, read on! Did this summary help you?
Is concrete finishing easier with a team?
Concrete finishing is easier with a crew that can work as a team. Decorative Concrete Institute in Temple, GA Concrete finishing is a process that strives to create a smooth, durable surface. When finishing concrete, timing is crucial and you must pay close attention to the condition of the concrete.