Undensified Powder Micro Silica Amorphous Silicon Dioxide for Concrete and Mortar

• Customization: Available
• Application: Construction
• Setting Time: Normal Setting
• Model NO.: 95
• Type: Filling
• Sio2: 92%
• Material: Silicon Dioxide
• Usage: Concrete, Mortar, No Shrinkage Grout
• Effect: Used in a Variety of Cementitious Repair Products
• Structure Feature: High Surface Area and Active Volcanic
• CAS No.: 69012-64-2
• Source: a by-Product During Silicon and Ferrosilicon Alloy
• Package: 25 Kg Small Bags or Jumbo Bags
• Transport Package: Woven Bag
• Specification: 95U
• Trademark: JUFU
• Origin: China
• HS Code: 281122
• Production Capacity: 5000tons/Month

Product Description

Silica Fume / Silica Oxide Microsilica for Concrete
 

Product Description

Silica fume, also known as microsilica powder, also known as silicon powder or ultrafine silicon dioxide powder, silicon dioxide micropowder.
Silica fume is an ultrafine siliceous powder material formed by the rapid oxidation and condensation of SiO2 and Si gas produced by metallurgical electric furnaces at high temperatures above 2000ºC and oxygen in the air.
Fineness of silica fume: More than 80% of silica fume has a fineness of less than 1μm, with an average particle size of 0.1-0.3μm and a specific surface area of 20-28m2/g. Its fineness and specific surface area are about 80-100 times that of cement and 50-70 times that of fly ash.

Particle morphology and mineral structure: Silica fume is a non-crystalline amorphous spherical particle with a relatively smooth surface, and some are agglomerates of multiple spherical particles stuck together. It is a volcanic ash material with a large specific surface area and high activity. The tiny spheres of materials mixed with silica fume can play a lubricating role.

 

Product Parameters

Item	Specification
SiO2	92% min
Moisture	0.9% max.
Bulk Density	250-360kg/m3
on 45 microns	1.5% max.
LOSS ON IGNITION	4% max.

 

Usage and Attention

1. The addition method of microsilica powder is divided into internal addition and external addition.

(1) Internal addition: Under the premise of unchanged water addition, 1 part of silica powder can replace 3-5 parts of cement (by weight) and keep the compressive strength of concrete unchanged while improving other properties of concrete.
(2) External addition: When the amount of cement remains unchanged, the addition of microsilica powder can significantly improve the strength and other properties of concrete. When microsilica powder is added to concrete, there is a certain slump loss. This point needs to be paid attention to during the mix ratio test.

2. Microsilica powder must be used in combination with a water reducer. It is recommended to add fly ash and ground slag to improve its workability.

When using microsilica powder to prepare concrete, the weight ratio to cementitious materials is generally as follows:
(i) High-performance concrete: 5-10%;
(ii) Hydraulic concrete: 5-10%
(iii) Sprayed concrete: 5-10%;
(iv) Pump aid: 2-3%;
(v) Wear-resistant industrial floor: 6-8%;
(vi) Polymer mortar, thermal insulation mortar: 10-15%


 

Packaging & Shipping

1. This product is packaged in a laminated plastic woven bag.
2. This product should be stored in a dry, rainproof, and sun-shaded environment. The product will clump and lose its activity when in contact with water. It is forbidden to expose it to the sun for a long time to prevent the packaging bag from weathering and the product from spilling.
3. This product is not a dangerous good
 

 

Company Profile

Shandong Jufu Chemical Technology Co., Ltd. is a professional company dedicated to manufacturing& exporting construction chemical products. Jufu has been focused on research, production, and sales of various chemical products since its establishment. Began with concrete admixtures, our main products include: Sodium Lignosulfonate, Calcium Lignosulfonate, Sodium Naphthalene sulfonate formaldehyde, polycarboxylate Superplasticizer, and sodium gluconate, which has been widely used as concrete water reducers, plasticizers and retarders.

These years, in order to respond to the national development strategy of Being Green, Environmental Protection, Energy Saving, and Efficiency Improving, Jufu Chem has made big efforts in production upgrading, output promoting, and reducing waste emissions. At the same time, Jufu Chem has developed some new products, such as dispersant NNO, dispersing agent MF, expanding industries from construction chemicals to textile, dyestuff, leather, pesticides, and fertilizers.

Certifications

 

 

FAQ

Q1: Do you have strict quality control?
Answer: From raw materials, mixing rate, production process, and package to transportation, we adopt a strict quality control management system. We also cooperate with many famous university labs in China.

Q2: Are all specifications of one product have the same application?
Answer: Different specifications correspond to different industries and markets. Prices are also different.

Q3: What about your after-sales service?
Answer: We have engineers equipped with over 30 year's experience. 7*24 hours quick response can be supplied by our sales team.

Q4: Can you make OEM production?
Answer: For customers from different countries and areas with different manufacturing raw materials, we can make it after learning well of your
basic data.

Q5: Could you support samples to test?
Answer: Surely, we would like to offer you a small sample for testing.