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 lime that's accountable for nothing more than lining accessible pores inside concrete [...]

By |November 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 chemical and physical gifts of microsilica in concrete. Trace elements: Trace components: [...]

By |November 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 can improve the grout fluidity and improve the grout surface state, thereby [...]

By |November 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 need to choose according to the purpose of the concrete. conventional grade-c20-c25-c30-concrete [...]

By |November 1st, 2018|Categories: Blog|Comments Off on conventional grade-c20-c25-c30-concrete mix ratio

silica fume concrete seminar report

silica fume concrete seminar report with the continuous development of high-performance concrete technology, the use of mineral admixtures at home and abroad to improve concrete performance. Europe first applied silica fume to concrete, and it has been used for 30 years in the commercial application of silica fume in the United States. ▪ Basic characteristic of silica fume ▪  Spherical [...]

By |October 23rd, 2018|Categories: Blog|0 Comments

disadvantages of silica fume in concrete

What are the main problems in the use of silica fume and what are the disadvantages? Silica fume needs to be paid attention to in actual use: it should not be used in the case of high wind speed, which is easy to cause dust. When using encrypted silica fume, the stirring time is extended by about 15 seconds [...]

By |October 22nd, 2018|Categories: Blog|0 Comments
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