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What else can I help you with?
Can concrete set under water?
Yes. Water is actually needed for concrete to set and is vital to the curing process. Concrete will set just fine under water. Depending on your specific application (will all of the pour be under water or will it start under water and finish above the water line) you may need to adjust the initial dryness of the mix as well as take more care in the pour. All of the volume of the concrete that is under water shoudl be poured in continuous fashtion. If you must pour in steps, the start of the next pour must be "in" the old pour so as to not leave a water survice between the pours. This "seam" will tend to stay and produce a weaker stucture.
When does hydration in concrete start?
As soon as the Cement comes into contact with water. This will start as soon as the cement and aggregates come into contact unless the aggregates have been dried of all surface water.
What is an under reinforced beam?
Under reinforced is that in which provided steel ratio is less than balanced steel ratio. Concrete beams are designed as under reinforced beams. The reason is that the failure start by yielding of steel instead of crushing of concrete. Mian Yaqoob
Does Shotcrete crack?
Yes it will crack. I think any and all concrete will crack. Maybe not enough to leak water but hairline cracks. Coat your pool with good waterproof sealant if leaks start.
How long does concrete last?
It depends on the design life [50 -75 years?], the environmental & service conditions, and preventative maintenance practices. Concrete is thought of as being permanent strong and very durable. In actuality it is a very complex, thermodynamically unstable and chemically reactive building material that continues to cure and become stronger for years. It is also vulnerable to many external influences! To obtain maximum life cycle [make it last] there are dozens of protective measures that can be taken to make it Green. An understanding that concretes absorb water and expel internal chemistry for years is paramount to obtaining a long life. That drop of water you put on the surface was absorbed into the interior through the Gel-Pore / Capillary System, present in all concretes. This path is formed when water in the mix comes to the surface during the initial set/curing phase [Bleed Water]. After curing, it's hard, we walk and drive on it, but water we put on the surface is absorbed back into it. This moisture carries contaminates: salts, acidic compounds and carbon dioxide to the interior. Lowering the High pH around steel reinforcement to a point that corrosion cells begin to form on the embedded steel in the matrix. Internal chemistry allowed to migrate out to the atmosphere on the surface results in several deleterious conditions. ASR, efflorescence, ettringite are a few! This is also what blisters or "Burns" a coating off in a very short time. A paint designed to protect the concrete, doesn't stand a chance if alkali is coming to the surface to compromise the bond! First step in obtaining a long lasting concrete is to Stabilize It by waterproofing, to fill the microscopic voids in the capillary system. Nothing going in and nothing coming out of it is a Great Start. In reducing Moisture and Oxygen content inside a concrete, you have eliminated two of the four conditions needed for corrosion to commence. A stabilized concrete will give longevity to this very volatile building material, make it Green and prolong it's service life substantially. Answer is: " It Depends On How You Treat It!"
When should I start watering concrete to ensure proper curing?
You should start watering concrete within the first 24 hours after it has been poured to ensure proper curing. This helps prevent cracking and strengthens the concrete.
When does concrete start hardening?
Concrete begins to harden shortly after it is mixed and poured, typically within a few hours. The initial set occurs as the chemical reaction known as hydration starts, which can be felt as the mixture becomes less workable. Full hardening, or curing, continues over several weeks as the concrete gains strength, with significant strength development occurring within the first 28 days.
How to pour a concrete slab effectively and efficiently?
To pour a concrete slab effectively and efficiently, start by preparing the site by leveling the ground and setting up formwork. Next, mix the concrete according to the instructions and pour it into the formwork. Use a screed board to level the concrete and a bull float to smooth the surface. Finish by adding control joints and curing the slab properly by keeping it moist for several days.
How do you remove concrete curing compound from my car finish?
To remove concrete curing compound from your car's finish, start by gently washing the area with warm, soapy water using a microfiber cloth to loosen the compound. If residue remains, you can use a specialized concrete remover or a solvent like acetone on a soft cloth, testing it on a small, inconspicuous area first. After removal, thoroughly wash and rinse the car, and consider applying a wax or sealant to protect the finish. Always follow the manufacturer's instructions for any products you use.
How can I safely and effectively perform plastic casting at home?
To safely and effectively perform plastic casting at home, you should start by choosing a well-ventilated area and wearing protective gear such as gloves and a mask. Follow the instructions on the plastic casting kit carefully, including mixing the materials in the correct proportions and allowing for proper curing time. Make sure to clean up any spills immediately and dispose of waste materials properly.
When do they start casting for the hunger games movie?
April 2011
What are concrete nouns that start with x?
Concrete nouns that start with X are:xylophonex-ray machinex-ray fishXerox copy
How do you finish aggregate concrete?
To finish aggregate concrete, start by leveling the surface using a screed board to ensure a smooth, even layer. After the concrete has set slightly but is still malleable, use a bull float to further smooth the surface and bring aggregate particles to the top. Once the surface is firm enough to support weight, use a trowel for a finer finish, or apply a broom for a textured surface. Finally, curing should be carried out to ensure proper strength and durability.
Can concrete set under water?
Yes. Water is actually needed for concrete to set and is vital to the curing process. Concrete will set just fine under water. Depending on your specific application (will all of the pour be under water or will it start under water and finish above the water line) you may need to adjust the initial dryness of the mix as well as take more care in the pour. All of the volume of the concrete that is under water shoudl be poured in continuous fashtion. If you must pour in steps, the start of the next pour must be "in" the old pour so as to not leave a water survice between the pours. This "seam" will tend to stay and produce a weaker stucture.
Can you install a real wood floor on top of a concrete floor?
You can. You start by applying moisture barrier to the concrete--flooring stores have it--then gluing the hardwood to the concrete.
When did they start casting twilight the movie?
In August 2008. It didn't take them very long.
What is the intial setting time for cement?
The initial setting time of cement is 30 minutesThe final setting time of the cement is 10 hours.The initial and final setting time of the cement can be found by using the Vicat's apparatus.
