Densified Silica Fumes

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pecifications

1.Densified Silica Fumes ASTM C 1240
2.Manufacturer
3.Production capacity 3000 ton per month
4.Third party inspection certifi

Microsilica is a densified dry powder microsilica admixture for portland cement concrete and mortars.

Parameters

Standard Value

Silicon Dioxide(SiO2)

min 90 %

Loss on Ignition(L.O.I) @ 975°C

max 3 %

Moisture Content (H2O)

max 2 %

Percent Retained On 45μm (325 sieve)

max 2 %

Bulk Density

600-700kg/m3

Densified Silica Fumes

Q: Can silica desiccant absorb alkaline gas?: Silica dioxide is not used as desiccant, as desiccant is silica gel, silica gel is also called silica gel, the main component is silicic acid, and will react with alkali, so you can absorb alkaline gas, but can not dry alkaline gas.

Q: Tea tea in the additive silica is what role do harm?: By eating into the body of the additive with silica, alkali, acid and acid environment, cavity environment of weak acid environment on the intestine are not decomposed, does not absorb, finally with the feces discharged together. It is worth noting that the higher value of free silica content in the air (respirable silica dust: the standard of respirable dust collection means the dust in the air dynamics diameter below 7.07 m, and the aerodynamic diameter of 5 mu m dust collection efficiency of 50%. in respirable dust free silica content of more than 10% people called respirable silica dust in the air. The workshop 10%~50% containing free silica respirable silica dust the maximum allowable concentration of 1mg/m3. in the air of workplace with more than 50%~80% of free silica respirable silica dust the maximum allowable concentration of 0.5mg/m3. in the air of workplace containing more than 80% free silica respirable silica dust maximum allowable concentration For 0.3mg/m3.) in this type of work environment, chronic exposure (a few weeks with a weak constitution and a few years of strong constitution) can lead to silicosis

Q: What are the differences between micro powders, silica gel and silica?: In industry, silica can be found in many forms, such as silica gel column filling materials, relatively large size of the preparation industry.

Q: Is silica and white carbon a product?: Silica dioxide belongs to a wide range of products, including many products. Such as white carbon, quartz powder and so on. The products are different according to the different process.

Q: What are the uses of silica waste?: Silica widely exists in nature, and other minerals constitute the natural silica rock. There is also called silica, is a solid hard refractory, the main composition of the quartz and silica, quartz crystal transparent, we often say that the crystal.

Q: Is the main component of the diamond silica?: The chemical composition of ordinary glass is Na2O. CaO. 6SiO2, the main component is silica.

Q: What is the function of silica as a food additive? Is it harmful to the human body?: Silica is a naturally occurring mineral, and many vitamin supplements sold in the market contain this mineral. In general, silica is used as an anti caking agent and, if ingested in combination with a normal balanced diet, helps to restore joint and cartilage damage, such as arthritis. In addition, it also benefits the blood vessel wall. Excessive consumption of silica can lead to side effects, just like excessive consumption of multivitamins. However, as an anti caking agent, the amount of silica used is very small. Therefore, silica as an anti caking agent does not cause side effects.

Q: What is silica, please? What is there in life that is made of it? Why do I see silicon dioxide in potato chips?: One thing to note is that silicon is the second largest element in the earth's crust after oxygen (in terms of mass fraction), but almost all of the silicon in the earth's crust is silicon dioxide and silicates

Q: How do you remove all calcium carbonate from silica?: Strengthening alkali concentrated solution heatingCalcium carbonate can be obtained by filtration and washing2NaOH + SiO2 = heating = Na2SiO3 + H2OSodium silicate is soluble in water and calcium carbonate does not react with alkali

Q: What are the main uses of silica?: Quartz sand is often used as glass raw materials and building materials.There are many ways to obtain matting agents from silica. They can be divided into two categories according to their manufacturing process. One is made by hydrothermal method, and the produced silica is relatively loose. Products made from silica gel are tough in texture. The treated two types of products can be made into standard silica matting agents. Processing refers to the use of organic (Paraffin) or inorganic materials to modify the surface of silicon dioxide to a certain extent. Compared with silica matting agent, the treated silica has different particle size, particle size distribution and pore volume. Hydrothermal matting agents are also different in particle size and distribution. Untreated and treated products are also different. At present, there is only one kind of matting agent suitable for special occasions. The matting agent is prepared by pyrolysis and has strong extinction efficiency, and is especially suitable for water base coating system.

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