High Purity Silica Fume for High-Strength Concrete, White Black Silica Fume for Oil Field Cementing, and Microsilica Powder

Product Description

Product Description

High purity silica fume for high-strength concrete, white black silica fume for oil field cementing, and microsilica powder

Silicon oxide powder CAS code 69012-64-2 is also known as silica fume, microsilica, or pyrogenic silica. It is a fine, white powder that is produced as a by-product of the production of silicon metal or ferrosilicon alloys. Silica fume is primarily composed of amorphous silicon dioxide (SiO2), but it also contains small amounts of carbon and trace elements.

Silica fume is a highly reactive material that has a number of unique properties. It is very small, with particle sizes ranging from 0.01 to 0.1 micrometers. This makes it very effective for filling in voids and pores in concrete and other materials. Silica fume is also very strong and durable, and it can improve the compressive strength, flexural strength, and abrasion resistance of concrete.

Main Uses: 
Microsilica fume (scientific name "silica fume," Micro-silica or Silica Fume), in the smelting of ferrosilicon and industrial silicon, silicon through the flue gas emitted by steam oxidation, the specially designed filter collected the amorphous powder like silica (SiO 2).Microsilica fume average 0.1-0.15 μ m in diameter, the size of several cement average 1.0%. Surface area for the 15-27 m 2 / g, with strong surface activity.

When it is used in concrete, it acts as a filler and as a cementitious material. The small microsilica particles fill spaces between cement particles and between the cement past matrix and aggregate particles. Microsilica also combines with calcium hydroxide to form additional calcium hydrate through the pozzolanic reaction. Both of these actions result in a denser, stronger and less permeable material.

 

Silica fume, also known as microsilica, (CAS number 69012-64-2, EINECS number 273-761-1) is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 nm. The main field of application is as pozzolanic material for high performance concrete.

It is sometimes confused with fumed silica (also known as pyrogenic silica, CAS number 112945-52-5). However, the production process, particle characteristics and fields of application of fumed silica are all different from those of silica fume.

Parameter	Typical Range/Value
Chemical Composition	Silicon Dioxide (SiO2): >85%
Particle Size	0.1 - 0.3 μm
Surface Area	>20,000 m²/kg
Bulk Density	200 - 700 kg/m³
Color	Gray to off-white
Purity	High purity with minimal impurities
Amorphous Structure	Amorphous (non-crystalline)
Surface Reactivity	High reactivity due to small size
Pozzolanic Activity	Enhances concrete strength/durability
Dosage	Typically 5% - 10% by weight in concrete

Packaging & Shipping

 

Company Profile

Ningbo Dongbo New Energy Co., Ltd. Was established in October 2015. The company is located in Ningbo City, Zhejiang Province, with convenient transportation and favorable geographical position, which focus on researching eco-friendly bio base materials which are phthalate-free, non-toxic and biodegradable.
The main products are green solvents and plasticizers. Green solvents includes methyl oleate, methyl palmitate, ethyl oleate, oleic acid, and propyle ne glycol (PG); Green plasticizer includes epoxy fatty acid methyl ester (EFAME), epoxidized soya bean oil (ESBO), composite plant ester (CPE), Dioctyl adipate (DOA), Dioctyl sebacate (DOS), Acetyl Tributyl Citrate (ATBC), Triacetin. Green solvent is mostly used in pesticide, coating and drilling lubricant. Green plasticizer is mostly used in PVC products, wires & cable, leather and toys. The company's strict quality assurance system, perfect enterprise management system, and high-quality product after-sales service are the basis of our company. Our company adhering to the principle of "quality first, reputation first", providing our customers with various types of quality and quantity product. Always adhering to the " quality- oriented, integrity and pragmatic, diligent and enterprising, service-oriented" business philosophy, and applying it to the company's management and management. In the face of a fiercely competitive environment, the company's system has been continuously improved, relying on science and technology, continuously increasing its products' scientific and technological content, and creating a higher market value for the society, customers and companies.

Certifications

 

FAQ

Q: Are you a trading company or manufacturer?
A: We are a factory.

Q: What can I buy from you?
A: eco friendly plasticizer, organic solvent, and other green chemicals.

Q: What are your terms of payment?
A: TT, LC, DA, DP, or as per customer's requirement.

Q: Could you tell me your company payment terms?
A: General 100% T/T in advance,30% T/T in advance,70% payment against copy of Bill of Loading,100% L/C at sight.

Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: How long is your delivery time?
A: Generally it is 7-10 working days after payment.

Q: How do you ensure quality?
A: We will trace the goods from production to selling, and we will solve the problems in selling for our customers.

 

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