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Concrete and Cement

Buildings today cannot go without concrete and cement. Cement mixed with water, reinforcing steel, sand and gravel, binds all of these components together. When dried, it becomes hard as a rock, which is perfect for buildings and infrastructure.

500 Questions

How can you color concrete?

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Asked by Wiki User

Concrete can be colored using integral pigments, which are added to the concrete mix during the mixing process. This ensures that the entire concrete slab is uniformly colored. Alternatively, concrete can also be colored using dyes, stains, or coatings that are applied on the surface of the cured concrete.

What is concrete phosphorescence?

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Asked by Wiki User

Concrete phosphorescence refers to the phenomenon where concrete material emits a glow or light after being exposed to light. This is typically seen in materials that contain phosphorescent pigments that absorb and store light energy, then release it slowly over time. This can create interesting visual effects in architectural or decorative elements made from concrete.

Why are the type of argon processes?

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Asked by Wiki User

Argon is often used in processes like welding, lighting, and cooling due to its inertness and non-reactivity with other elements. It is also used in industrial applications like metal production and electronics manufacturing to create controlled atmospheres that prevent oxidation. Additionally, argon is used in analytical instruments, such as gas chromatography, for its stable and consistent properties.

What is the weight of 1m3 of cement?

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Asked by Wiki User

The weight of 1 cubic meter (m^3) of cement is typically around 1440 kg.

Which mineral does nature use for cement?

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Asked by Wiki User

Nature uses calcite, a mineral composed of calcium carbonate, for cement in the form of limestone. When heated, limestone decomposes to produce lime, which is a key ingredient in cement production.

What mineral is used in cement?

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Asked by Wiki User

Limestone is the primary mineral used in cement production. It is typically made up of calcite or aragonite, and is ground into a fine powder to be mixed with other materials such as clay or shale to form cement.

What cement contains?

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Asked by Wiki User

Cement typically consists of limestone, clay, sand, and other materials like iron ore, bauxite, or fly ash. These raw materials are combined and heated in a kiln to form a fine powder known as cement. This powder is then mixed with water to create a paste that hardens and binds together when it dries.

Which type of radiation can only be stopped by a thick lead sheet or very thick concrete?

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Asked by DemiPittas

Gamma radiation can only be stopped by a thick lead sheet or very thick concrete due to its high energy and penetrating ability. Lead and concrete are dense materials that effectively absorb and attenuate gamma rays, reducing their harmful effects on living organisms.

What is fluorescence in concrete?

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Asked by Wiki User

Fluorescence in concrete is the property of emitting visible light when exposed to ultraviolet light. This phenomenon can be achieved by adding fluorescent materials, such as pigments or dyes, to the concrete mixture. Fluorescent concrete can be used for decorative purposes in indoor and outdoor applications.

How do you clean wood charcoal stains off a porous concrete fireplace hearth?

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Asked by Wiki User

To clean wood charcoal stains off a porous concrete fireplace hearth, you can begin by scrubbing the area with a mixture of warm water and dish soap. For tougher stains, you can try using a paste made of baking soda and water or a commercial concrete cleaner. Remember to thoroughly rinse the area after cleaning to remove any residue.

What is cement made of?

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Asked by Wiki User

Cement is primarily made of limestone, clay, and other materials such as iron ore or shale. These ingredients are crushed, blended, and heated in a kiln to create a powder known as clinker, which is then ground into a fine powder to produce cement. Water is added to this powder to create a paste that hardens and binds materials together.

What is the formula of making cement?

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Asked by Wiki User

Cement is made by combining limestone, clay, sand, and other raw materials in specific proportions and then heating the mixture in a kiln to high temperatures. The resulting product, called clinker, is then ground into a fine powder to create cement.

What minerals are used in cement?

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Asked by Wiki User

The main minerals used in cement production are limestone, clay, silica, and iron ore. Limestone provides calcium, clay and silica provide aluminum and silicon, and iron ore provides iron to create the necessary chemical reactions for cement formation.

Why does cement turn white?

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Asked by Wiki User

Cement turns white due to efflorescence, which occurs when water dissolves salts within the concrete and brings them to the surface. As the water evaporates, it leaves behind the salts, creating the white, powdery residue. This can also be caused by environmental conditions or improper curing.

Is cement made out of talc?

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Asked by Wiki User

No, cement is not made out of talc. Cement is primarily made of limestone, clay, and other materials that are heated together to form a binder that hardens when mixed with water. Talc, on the other hand, is a soft mineral used in various products like cosmetics and industrial applications.

What do you add to clay to make cement?

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Asked by Wiki User

To make cement, you add limestone and clay in specific proportions to form a powder. This powder is then mixed with water to create a malleable paste that hardens over time, binding together materials like sand and gravel to form concrete.

How do you make fire cement?

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Asked by Wiki User

Fire cement is typically made by blending finely ground heat-resistant materials such as alumina, silica, or calcium aluminate with water to form a paste. This paste is then applied to areas that require heat resistance, such as around fireplaces or stoves, and allowed to dry and cure. It is important to follow the manufacturer's instructions for the specific type of fire cement being used.

Does a 60 pound bag of cement weigh 60 pounds when dried concrete?

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Asked by Wiki User

No, a 60 pound bag of cement does not weigh the same when it is turned into dried concrete. Once mixed with water and set, the weight of the dried concrete will be slightly more than the original weight of the bag of cement due to the water and other additives in the mixture.

Which is more dense a cement brick or gold brick?

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Asked by Wiki User

A gold brick is more dense than a cement brick. Gold has a much higher density than cement, so a gold brick would weigh more for the same size compared to a cement brick.

What minerals are used to make cement?

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Asked by Wiki User

The primary minerals used to make cement are limestone, clay, and gypsum. Limestone provides calcium and clay provides silica and alumina, which are necessary for the chemical reactions that occur during cement production. Gypsum is added to regulate the setting time of the cement.

Does hot charcoal ruin concrete?

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Asked by Cozie688

Hot charcoal can potentially damage concrete through thermal shock, which occurs when a sudden extreme temperature change causes the material to expand and contract rapidly, leading to cracks or spalling. To prevent this, it's recommended to use insulating pads or trays underneath the charcoal when grilling on concrete surfaces to minimize direct contact and heat transfer.

How do you remove gas stains off of color stained concrete?

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Asked by Wiki User

To remove gas stains from color-stained concrete, you can try using a degreaser or a mixture of baking soda and water to scrub the stained area. You can also use a pressure washer to help with the removal process. It's important to spot test in an inconspicuous area first to ensure the cleaning method does not affect the color stain on the concrete.

How do you get candle wax off cement?

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Asked by Wiki User

To remove candle wax from cement, place a bag of ice over the wax to harden it, then scrape off as much as you can with a butter knife or scraper. Apply a solvent like mineral spirits or WD-40 to the remaining wax, let it sit for a few minutes, then scrub with a brush or cloth to remove the rest.

Will old contact cement reactivate when new is applied or should you sand first?

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Asked by Wiki User

It is best to sand the old contact cement before applying a new layer. This will help create a better bond and prevent any issues with reactivation of the old adhesive.

How much weight does a concrete cinder block hold?

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Asked by Wiki User

The weight capacity of a concrete cinder block can vary depending on the block's size and design. On average, a standard 8-inch concrete cinder block can hold anywhere from 900 to 1,500 pounds vertically. It's always best to refer to the manufacturer's specifications for precise weight-bearing capabilities.