What happens to volcanic ash with water? What is the use of volcanic ash

1.After grinding into fine powder, the volcanic ash is mixed with lime and water, which can not only harden in the air, but also continue to harden in the water, which is called the pocanic mixed material, which has the dual properties of glass phase and microcrystalline phase. Originally, volcanic ash refers to the vitreous material formed by the magma ejected from the ground by volcanic eruptions, which is cold due to low ground temperature and low pressure, and later it was found that after mixing the "volcanic ash" ejected during volcanic eruptions, lime can not only harden in air, but also harden in water, obtaining hydraulic properties similar to ordinary cement.

This shows that the pozzolana mixed material is an active mixed material, which can be used as a mixed material of Portland cement to make pozzolana Portland cement and fly ash Portland cement.

2.Volcanic ash is produced by volcanic activity and is a fine pyroclastic material. It is composed of rocks, minerals, and fragments of volcanic glass, with a diameter of less than 2 mm, of which the volcanic ash of extremely fine volcanic ash is called volcanic dust.

Among the solid and liquid ejecta of volcanoes, volcanic ash is the largest and most widely distributed, and they are often dark gray, yellow, white and other colors, and become tuff after accumulation and compression.

Dear, you are so dry and <> Kaichun

The answer you're looking for: The usefulness of volcanic ash is 1Agriculture:

Volcanic ash is rich in a variety of beneficial elements, such as potassium, calcium, magnesium, phosphorus, etc., which can be used as fertilizer in farmland to improve soil fertility and crop yields. 2.Jian Wu Sun Xizhu:

Volcanic ash can be mixed with cement, lime and other building materials to enhance the strength and stability of the material, while also adjusting the color and texture of the material. 3.Medical:

Volcanic ash can be used to make ointments, ** and other cosmetics and medicines, with anti-inflammatory, antibacterial, adsorption and other effects. 4.Beauty:

Volcanic ash can be used as a natural beauty raw material, which can remove dirt and impurities on the soil, promote blood circulation, and effectively prevent acne, blackheads, acne and other problems. 5.Geological Research:

Volcanic ash is one of the important materials in geological and archaeological research, which can provide important information about volcanic activity and ancient cultures. In short, volcanic ash has a wide range of applications and functions in agriculture, construction, medicine, cosmetology and geological research.

1. The harm of volcanoes: 1. Affect the climate: a large amount of volcanic ash and volcanic gases are ejected during volcanic eruptions, which have a great impact on the climate, and the toxic gases emitted by volcanoes contain sulfur and chlorine, forming acid rain, dim daylight and storms, and even mud rain will plague local residents for several months.

When volcanic ash and volcanic gases are ejected into the air, they are dispersed by the wind over long distances. These volcanic materials can block out sunlight, causing temperatures to drop, crop yields to decrease, and in severe cases, species extinction. 2. Damage to the environment

The combination of ash and torrential rains from volcanic eruptions can wash away roads and bridges, inundating nearby villages and cities, leaving countless people homeless. 3. Affect life: The volcanic ash from volcanic eruptions is different from soot in that it is a small hard particle that is insoluble in water.

Inhalation of volcanic ash can cause damage to the respiratory tract and lungs in humans and animals, leading to respiratory diseases. 2. Benefits of Volcano: The benefits of volcanoes, such as volcanic geology, volcanic topography and geothermal and hot springs of post-volcanic action, and fertile volcanic soil, all bring considerable benefits to people.

Volcanism is not entirely harmful to us. For example, as long as magma can remain below the surface, it is good geothermal heat**.

Yes, you can go to the house over there and change the glass and furniture of various colors.