0
What else can I help you with?
Can you concrete over bitumen?
Yes, you can pour concrete over bitumen, but it's essential to properly prepare the surface first. The bitumen should be clean, dry, and free of any contaminants to ensure good adhesion. Additionally, using a bonding agent or primer may help improve the bond between the concrete and the bitumen. Proper curing and maintenance of the concrete are also important to ensure its longevity.
How to repair concrete road?
To repair a concrete road, begin by assessing the damage and cleaning the area to remove debris, dirt, and loose concrete. Next, patch any cracks or holes using a concrete repair mix, ensuring proper compaction and smoothing the surface. For larger areas, consider cutting out damaged sections and replacing them with new concrete, ensuring proper curing. Finally, apply a sealant to protect the repaired surface from future damage.
Concrete Foundation Installation?
form_title=Concrete Foundation Installation form_header=7683 Have there been any completed structural drawings for this project?*= () Yes () No Which kind of concrete foundation would you like?*= () Poured concrete slab foundation () Concrete pier foundation () Poured concrete basement () Concrete block foundation () Poured concrete foundation with crawlspace () Want recommendation Please specify what the purpose of the foundation is.*= () Foundation for a new home () Foundation for a mobile home () Existing foundation is beyond repair () Foundation for addition or small structure
Does it expand and contract Even after concrete is dry?
No. Concrete never gets any bigger than the day it is poured.
What is the density of M-30 grade concrete?
Density of M30 and any fresh concrete is 2400kg/cu.m and reinforced concrete density you can take 2500 kg/cu.m
Why and how would you extend the curing process of the concrete?
Placing plastic sheeting (known as visquene in construction trades) over drying concrete extends the curing process of concrete. The idea is to slow the evaporation of moisture from the drying concrete. The slower concrete curing process, the stronger the concrete becomes. On construction jobs I have been party to, the curing concrete is usually covered for two or three days.If the curing concrete's surface were to get dry, there may not be enough water for the chemical reaction which forms concrete, and so the surface would not be as strong. Wetting isn't about "extending" but rather allowing the curing to make a hard surface. The full curing takes as long as a month to reach full strength, but most of the reaction happens in three days.If you actually want it slower, then cooling would work, as with any chemical reaction. Also disrupting the water-cement reaction would work, which would unfortunately make the concrete weaker. For example, adding sugar or anything that ties up the water would slow the reaction but harm the strength of the result.
What kind of food Egyptians eat?
egyptians ate meat and any kind of produce
What does high t temperature do to concrete?
Temperatures below boiling point - commonly about 700C, are used to quicken the curing of mass-produced items such as concrete blocks and pipes. This can shorten the curing from a few days to a few hours. However, in large concrete pours, such as would be found in a mass concrete dam, the heat generated by the self curing process could induce thermal expansion stresses, and this is countered by having cooling pipes installed in the dam body. Temperatures much elevated, could boil away the water of crystallization from the various crystal processes upon which the concrete depends for its strength. Effectively, you would be 'calcining' the crystals once again!
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.
Can you concrete over bitumen?
Yes, you can pour concrete over bitumen, but it's essential to properly prepare the surface first. The bitumen should be clean, dry, and free of any contaminants to ensure good adhesion. Additionally, using a bonding agent or primer may help improve the bond between the concrete and the bitumen. Proper curing and maintenance of the concrete are also important to ensure its longevity.
What is the difference between cement and concrete?
Concrete is made from cement. Concrete has cement, rock and sand mixed with water. Cement is just the powdered hydrated limestone.Cement is a building material that is a powder made of a mixture of calcined limestone ( calcined: to Heat a substance so that it oxidizes or reduces) and clay; when cement is used with water and sand or gravel it makes what is referred to as concrete or mortar.Reinforced concrete means that there is a mat of rebar (iron rods) metal, and/or mesh added to provide extra support against stresses and is laid out prior to the pour of concrete.Grout is a thin mortar that can be poured and used to fill cracks in masonry, ceramic tile or brickwork.regular curingIt is critical to concrete's long-term durability that it be kept as moist as possible for the first seven days after placement. In addition, it must be allowed sufficient drying time before being subjected to freezing temperatures or to de-icing salts. Curing concrete properly requires the correct control of moisture and temperature and without proper curing, concrete may only achieve 50% of its potential design strength. The logic behind the practice of a seven day curing period rests on two facts:Cement, the "active" ingredient in concrete requires constant moisture to gain strength.If the concrete is kept moist for the seven day period, it will not only gain strength, but will also shrink less and produce fewer cracks.Curing can be assisted in a number of ways:Spray-on liquid curing agents and sealers.Water ponding or spraying a mist over the concrete.Coverings such as wet burlap, polyethylene, insulating blankets, etc.Leave forms in place.A liquid curing agent is the most effective and convenient method. The curing agent should be applied as soon as finishing is complete. Curing agents form a membrane on the surface of the concrete in order to retain moisture. Once the curing agent has been applied, no further working of the concrete can be done. Use a spray or roller to apply curing agents.According to CSA A23.1-94, curing is a mandatory part of concrete construction and requires moisture to maintain the concrete at 100% relative humidity and a minimum temperature of 10°C for a period of at least 3 days. This period is extended to a minimum of 7 days for the durability requirements of exposure classes F1, C1, C2, S1, and S2.cold curingConcrete can be placed safely throughout the colder months if precautions are taken. During colder weather, the mix should be adapted to the ambient temperature by heating the concrete, adding accelerators, and providing protection. during colder condition's, it is important to heat all concrete to meet the requirements of CSA and to maintain reasonable setting times and strength gain.Concrete generates heat during the hydration process, (the chemical process by which cement reacts with water to form a hard stable paste). Hydration is affected by initial concrete temperature, ambient air temperature, the dimensions of the concrete and mix design.The temperature of the concrete during and after placement is critical since concrete sets more slowly as the temperature drops. Finishing and form removal may be delayed in cool weather and strength development can be impaired if appropriate precautions are not taken.whenever possible , if not always, do not place concrete on frozen ground, on snow, or in freezing weather. If concrete freezes while in a saturated condition, surface problems like scaling, spalling or cracking can arise due to the expansion and contraction of frozen water inside the concrete.During freezing weather, water curing of concrete should be terminated 12 hours before the end of the protection period.Do not use a curing agent if there is any chance that the concrete will freeze during the curing period.Protect concrete from freezing temperatures for 3 to 7 days after placing.Leave forms in place as long as possible. Corners and edges are most vulnerable (cover and heat if necessary).Protect flatwork by covering and heating, or using insulated blankets, or covering with plastic and straw.This information has been provided to assist you .For a complete review of cold weather concrete practices, please refer to CSA A23.1 -- 94 Section 21.
What are the key considerations for building strong and durable concrete foundation walls?
Key considerations for building strong and durable concrete foundation walls include proper site preparation, ensuring adequate reinforcement, using high-quality concrete mix, proper curing techniques, and regular inspections to identify and address any potential issues early on.
What happens if you seal the concrete before curing?
Sealing concrete before it has properly cured can trap moisture within, preventing it from evaporating as needed. This can lead to issues such as improper hydration, weakened concrete strength, and surface defects like scaling or blistering. Additionally, it may hinder the development of the desired surface finish and affect the bond with any subsequent coatings or sealants. It's generally recommended to allow concrete to cure adequately before applying any sealants.
Is it ok to paint uncured concrete?
No, it is not OK. Doing that may inhibit the curing. I always leave concrete for 2 weeks before painting, You should wait to paint until the pH is below 10. Sometimes this can take up to two months. You can get pH strips at any drug store.
How to repair concrete road?
To repair a concrete road, begin by assessing the damage and cleaning the area to remove debris, dirt, and loose concrete. Next, patch any cracks or holes using a concrete repair mix, ensuring proper compaction and smoothing the surface. For larger areas, consider cutting out damaged sections and replacing them with new concrete, ensuring proper curing. Finally, apply a sealant to protect the repaired surface from future damage.
What kind of animal does not produce much internal heat?
Cold-blooded animals do not produce much body heat. Most do not produce any at all.
What kind of compressor used in pneumatic drilling machine?
Any kind that will produce adequate pressure and volume of air.
