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Yes. Especially in warm dry weather which is the optimal environment to pour a slab in the first place. Never pour a slab if its going to rain and hose it down daily after its poured for at least a week. It prevents cracking which is caused by the warm, dry conditions which it requires to cure. Kind of a catch 22.
Being an old contractor, his comments are spot on, however let me add a few things. One of my first jobs in the construction business was to stand guard over newly poured concrete and keep it wet. I learned early on, that "slabs," such as driveways or walks took approx. 30 days to cure, and the longer one slowed the curing process, the stronger and less likely the cracks.
Invariably I started off with a hose, but if you try this on a warm or hot day, you'll find that the water will evaporate faster than you can hose it down. We took to installing sprinklers, like oscillating k
ind, which you could set in the middle of a driveway.
Much later, we laid 2x4's along the edge, over plastic and weighed them down with bricks, so we could flood the concrete. It wasn't ideal but flooding worked a heck of a lot better than sprinkling.
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If concrete generates its own heat during curing how long would you need to cover a foundation to keep from freezing?
Keep it covered at least a week.
How many days required for concrete curing?
That depends on the concrete, as well as weather conditions, and the load the concrete would be subjected to. Concrete gains strength over time and the usual benchmarks are 7 days, and 28 days. At 28 days concrete has usually cured to nearly its maximum strength. For a concrete footing in a residential environment say a deck or home the concrete will usually cure for a minimum of three days before the formwork is removed and the rest of the structure is built. For a commercial or civil project the curing is subject to the engineers discretion.
What is the best solution for cleaning concrete?
a presure washer is the best way to clean concrete, keep in mind to keep moving the presure washer and not let it just set in one spot for to long.
When laying concrete block should you use spacers in between each block?
Spacer's will make it easier for the "First Time Mason". It will keep the Joints at the standard 3/8 inch.
Is wet concrete heavier then dry concrete?
Concrete is made of a mixture of cement, aggregate (small stones), fine aggregate (sand), water and other chemical additives. When mixed the wet concrete will remain so for Most people assume that set concrete has no water in it, this is not so, as the water content helps bond the aggregates and cement, this process is known as Hydration. Concrete with no water in it would crumble to dust. Adding more water to the mix will make a concrete that is easier to work, while less water will produce a stronger, more durable concrete. After initial setting of the concrete, a slow amount of water loss is expected due to the concrete drying, it can take anything up to a year for water to stop evaporating slowly out of the concrete. So for this reason the answer to your question is yes, dry, set concrete will weigh less than wet concrete, but for anything up to a year it will keep getting lighter, due to waterloss.
What is curing why need to curing in buildings?
Curing in buildings is a process that is keeps freshly poured concrete from drying. It is kept at a certain temperature to keep it moist. Curing in buildings is important because it gives concrete what it needs to gain strength properly.
If concrete generates its own heat during curing how long would you need to cover a foundation to keep from freezing?
Keep it covered at least a week.
Why you add the water in the curing time is this water can used in the hydration or only for keep the water inside the concrete to not go outside?
Both
How many days required for concrete curing?
That depends on the concrete, as well as weather conditions, and the load the concrete would be subjected to. Concrete gains strength over time and the usual benchmarks are 7 days, and 28 days. At 28 days concrete has usually cured to nearly its maximum strength. For a concrete footing in a residential environment say a deck or home the concrete will usually cure for a minimum of three days before the formwork is removed and the rest of the structure is built. For a commercial or civil project the curing is subject to the engineers discretion.
What paint should be used on concrete to resist alkali?
Paints to be used on concrete should be made especially for concrete. This is a very hard surface to cover and keep covered so it is very important a paint made especially for concrete is used.
How do I keep concrete countertops clean?
Concrete countertops are a bit of a hassle to keep clean,but the end result is amazing.The process of cleaning concrete countertops includes some sort of power washer that will be able to thoroughly clean the concrete of any mess. While it may be a pain, you end up with a beautiful kitchen that will last awhile,good luck!
What is the effect of ice on concrete?
So long as the concrete is fully cured, ice won't hurt it in your lifetime.If it's not fully set, you'll need to keep it covered with an insulating blanket until all the water has evaporated and it looks dry (light gray}Concrete generates heat as it cures so all you'll need is a blanket this time of year.If it gets down into the teens, you'll need to put additives in the concrete and add a heat source to aid in the curing.
Which of these should he do while he works on the analysis questions?
Keep his gloves on
Can ants damage concrete?
Over time, ants can damage concrete. However, if you keep all the cracks in concrete caulked, it will prevent the ants from damaging the concrete.
what precautions should be taken while handling fluorine?
Keep equipment dry.
What is the effect of the salt contamination of aggregate in concrete?
It would weaken the concrete, so keep out the salt.
What the citizen should keep in mind while casting their vote?
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