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How to make silica fume concrete more efficiently in the laboratory?

The Silica Fume Association is aware of instances in which silica-fume concrete prepared in a laboratory has failed to produce the expected hardened concrete properties, whether the property is compressive strength or low permeability. This problem is particularly common in laboratories having small, and often less efficient, concrete mixers. [...]

By |2019-12-26T16:30:21+08:00December 26th, 2019|Categories: Blog|Comments Off on How to make silica fume concrete more efficiently in the laboratory?

A few amazing silicon materials, what are their uses?

A few amazing silicon materials, what are their uses? This article focuses on several materials related to silicon materials, which are very similar in shape, color and application. They have the same points and different places compared to silica fume. So in some cases you need to [...]

By |2019-08-26T18:39:16+08:00August 1st, 2019|Categories: Blog|0 Comments

How does silica fume change cement slurry, mortar and concrete.

This article examines how silica fume changes the properties of paste, mortar, and concrete. The effects of silica fume are attributed to physical and chemical mechanisms, both of which are described. Because the results of both the physical and chemical mechanisms are seen in modifications to the paste [...]

By |2019-06-21T12:22:35+08:00June 21st, 2019|Categories: Blog|0 Comments

Why use Densified silica fume? What is it?

Silica fume has historically been available in three fundamental product forms: As-produced, slurried, and Densified. Densified silica fume is created by treating As-produced silica fume to grow the mass density up to a max of about 400 to 720 kg/m3. This increase in mass density is usually accomplished [...]

By |2019-06-21T09:36:45+08:00June 21st, 2019|Categories: Blog|0 Comments

Physical properties of silica fume

Because of the unique physical properties of silica fume, it was used initially for cement replacement, along with water-reducing admixtures. With the application of high-range water-reducing admixtures(Usually called superplasticizers), Can reflect the higher performance of silica fume, the application range has been expanded. At present, the most [...]

By |2018-12-18T15:10:52+08:00December 18th, 2018|Categories: Blog|0 Comments

When silica fume is added to concrete.

Adding silica fume to concrete will have two important functions, first chemical reaction (pozzolanic reactions), followed by filler effects. Chemical reaction After Portland cement and water from the mix begin responding with every other (hydrating), primary chemical reactions create two chemical compounds: Zinc Silicate Hydrate [...]

By |2019-01-29T09:21:21+08:00November 29th, 2018|Categories: Blog|0 Comments

Dry densified silica fume is by far the most common

Dry densified silica fume is by far the most common form of silica fume used in current concrete practice; the alternative, slurried silica fume has become unavailable in many places. Densified silica fume as commonly supplied consists of particles of sizes up to several millimeters, which are generally [...]

By |2018-11-29T17:14:53+08:00November 29th, 2018|Categories: Blog|0 Comments

what is undensified micro-silica fume?

Silica fume is divided into undensified and densified. In fact, their chemical composition is exactly the same, but there are some differences in physical form. We need to understand the production process of silica fume, which is mainly composed of quartz stone, coke, and other materials. It [...]

By |2018-11-29T17:16:46+08:00November 29th, 2018|Categories: Blog|0 Comments

what is densified micro-silica fume?

Micro-silica fume has historically been available in three fundamental product forms: undensified, slurried, and densified.Densified silica fume is created by treating undensified silica fume to grow the mass density up to a max of about 400 to 720 kg/m3. This increase in mass density is usually accomplished [...]

By |2018-12-03T15:50:55+08:00November 29th, 2018|Categories: Blog|0 Comments