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Global silica fume market trend 2022-2029 What is micro silica fume for concrete by Newswrigleyfieldnews

Since the beginning of this year, people around the world have felt the pressure of rising prices. Not only the rise in oil prices but also different industries have seen soaring prices. According to the latest data, from August 2021 to the present, the inflation rate in the United States has risen for 6 consecutive months, and this data has soared from the previous 5.3% to 7.9% today. Inflation in the United States, the global Many countries have been affected.
According to experts' forecasts, the inflation rate in the United States may exceed 10% this year, which will face the danger of collapse, which has a great impact on global inflation, including silica fume.


What is micro silica fume for concrete?

Micro silica fume is also well used in the concrete industry. Its physical characteristics include small particles, high purity, and pozzolanic solid activity. Adding micro silica fume to concrete can not only improve the properties of concrete in many aspects but also enhance. The adhesion and cohesion of concrete itself, can make the concrete play its role more and reduce the amount of rebound. The use of micro-silica fume has brought many advantages to the project; not only can the thickness of the concrete be formed at one time, but it also brings a lot of cost savings to the whole project and shorten the time required for the project.


Application of high-performance concrete proportioning design scheme

1) Compatibility: Micro silica fume has good compatibility with water-reducing agents, fly ash, mineral powder, and fiber;

2) Slump: Concrete has strong viscosity due to the phenomenon of gap filling, so the slump design scheme of concrete mixed with silica fume is 2~3cm higher than that of ordinary concrete;

3) The amount of mixing, production, and processing of high-strength concrete and shotcrete, the mixing amount of silica fume is 6~12% of the cement; the mixing amount of concrete for underwater engineering projects is slightly higher; the silica fume is used as a pump When the agent is used, the mixing amount is reduced to about 2%. Finally, the mixing ratio is confirmed by the mixing ratio test. The mixing of micro-silica fume mixed with cement and aggregate shall be constructed in strict accordance with the specifications, and at the same time, the maintenance shall be enhanced.


Ingredients and mixing

Generally speaking, the concrete industry usually uses densified silica fume, so manual or automatic feeding can be used.

2) Because of its unique ultra-fineness, the micro-silica fume must be put in immediately after feeding, and the micro-silica powder cannot be added to the concrete.

3) When the concrete is mixed with silica fume, the mixing time is 30~40s longer than ordinary concrete to obtain good uniformity.

4) There are no special requirements for the concrete of micro silica fume during transportation, just like ordinary concrete.

Watering and maintenance;

1) Vibration of micro-silica fume concrete requires high density, no vibration leakage, and no over-vibration. The vibration time is generally 10~30s;

2) Continuous supply of concrete is required to prevent cold stubble and cause hidden dangers. The stubble time cannot exceed 100 minutes;

3) It is essential to prevent the premature evaporation of water when protecting the concrete from silica fume. Therefore, after pouring, immediately cover the film, and lay sacks for watering and curing.

Use a woven bag for micro-silica fume in a plastic inner sealed bag, and pay attention to waterproof and moisture-proof during storage and transportation.


TRUNNANO is a concrete additives supplier with over 12 years experience in nano-building energy conservation and nanotechnology development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

If you are looking for high quality silica fume, please feel free to contact us and send an inquiry.

sales@cabr-concrete.com



Affected by the present complex international situation and the epidemic, the future of global financial markets, futures markets, and stock markets is still highly uncertain. For this reason, I suppose the price of the silica fume would continue to rise.

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