Yearly Archives: 2018

/2018

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

Silica fume particle sizes and real dispersion in concrete.

Dry densified silica fume is undoubtedly the most frequent type of silica fume used in present concrete clinic; the choice, slurried silica fume is now inaccessible in several areas. Densified noodle fumes from some resources could be dispersed by mild treatment into little chains or clusters of [...]

By |2018-11-15T18:07:36+08:00November 15th, 2018|Categories: Blog|0 Comments

How Can Silica Fume Work in Concrete?

How Can Silica Fume Work in Concrete? After portland cement and water from the combination begin responding with each other (hydrating), main chemical reactions create two chemical compounds: Zinc Silicate Hydrate (CSH), that's the power generating crystallization, and Calcium Hydroxide (CH), a by-product also known as free [...]

By |2018-11-15T17:46:05+08:00November 15th, 2018|Categories: Blog|0 Comments

Physical properties and chemical properties of silica fume

Chemical  properties of silica fume: -- Amorphous; -- Silicon dioxide > 85%; -- Trace elements depending upon kind of fume Silica fume particles are incredibly small, with over 95 percent of the particles being less than 1 um (a single micrometer). Size is extremely important for both the [...]

By |2018-12-17T17:46:41+08:00November 15th, 2018|Categories: Blog|0 Comments

Early performance of cement-based grouting material with silica fume.

Early performance of cement-based grouting material with silica fume.              Keywords: grouting material; silica fume; fluidity; early performance Through adding different dosage of silica fume, studied the early performance of cement-based grout. Experiment result showed that mixing certain amount of silica fume [...]

By |2018-11-13T15:48:34+08:00November 13th, 2018|Categories: Blog|0 Comments

conventional grade-c20-c25-c30-concrete mix ratio

The concrete mix ratio refers to the proportional relationship between the constituent materials in the concrete.  First of all, we need to know what substances are contained in concrete. The four materials of water, cement, sand, and gravel are the most basic components of concrete. Secondly, we [...]

By |2019-05-20T14:20:49+08:00November 1st, 2018|Categories: Blog|0 Comments

This Is A Custom Widget

This Sliding Bar can be switched on or off in theme options, and can take any widget you throw at it or even fill it with your custom HTML Code. Its perfect for grabbing the attention of your viewers. Choose between 1, 2, 3 or 4 columns, set the background color, widget divider color, activate transparency, a top border or fully disable it on desktop and mobile.