Wet concrete is caustic- it will burn your skin. Concrete DUST is not good to inhale- it may contain silica. Solid, cured concrete is about as hazardous as a rock.
Buldge is nothing but additional cover, provided reinforcement is not displaced. As such it is not structurally harmful if treated as properly.
The best concrete for making a concrete bench is Bench concrete.
The concrete was incredibly hard. The concrete was gray.
There are quite a diverse range of concrete types in the Philippines. Some of the types of concrete in this country include Fiber-reinforced concrete, Rapid-setting concrete, Fluid-filled concrete, and Pervious concrete.
No. Concrete won't bond to concrete. It will end up cracking.
Yes, concrete dust can be toxic and harmful to human health if inhaled in large amounts over a prolonged period. It can cause respiratory issues and irritation to the eyes, nose, and throat. It is important to take precautions when working with concrete to minimize exposure to the dust.
Lead and concrete are effective materials that can block gamma rays and protect against their harmful effects.
Yes, ammonia can be effective in cleaning concrete surfaces. However, it is important to dilute it with water as it can be harsh and harmful if used at full strength. Additionally, make sure to rinse the concrete thoroughly after cleaning with ammonia.
Water softener salt can be harmful to new concrete as it may promote efflorescence, which is the appearance of white, powdery substance on the surface of the concrete. It's best to avoid using water softener salt near new concrete to prevent potential damage.
Buldge is nothing but additional cover, provided reinforcement is not displaced. As such it is not structurally harmful if treated as properly.
It is possible for curing concrete to produce VOCs, or volatile organic compounds, which contain harmful gases. This can happen if the concrete is cured using a toxic chemical compound. The toxicity of the gas has shown to wear off after 28 days.
as they are very penetrating. needs many centimetres of lead or a metre of concrete to stop it i hope this helps:):) xx :):)
No. The main purpose of a shelter is for protection from the elements, getting their feet out of the mud is very important.
Generally, salt is harmful to concrete. It will seriously corrode any reinforcing steel. The salt crystals, when the concrete is dry, will weaken the concrete. The setting of cement is a complex set of chemicals, calcium sulphates and silicates mainly. The presence of salt may interfere with these crystals forming, which may take years.
Concrete jungles affect the environment by raising the temperatures in cities and blocking the sun from plants and trees below the buildings. Living in a concrete jungle can also affect the air quality.
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.
Materials like lead, concrete, and water are effective at attenuating and repelling radiation. Lead is commonly used due to its density, which helps absorb radiation energy. Concrete and water can also block or scatter radiation, providing protection against its harmful effects.