Silicon Powder 99.9%

 

1. Silica fume concrete is used in water conservancy projects to improve the crack resistance of the project. Hydraulic concrete cracks have become a major issue of widespread concern. The cause of cracks is due to the heating of the hydration heat of the material itself. For example, adding fly ash to concrete can reduce the heating of hydration, but the early strength is relatively low, which limits the amount of fly ash.

Manufacturer Of Silicon Powder

 

2. Silica fume concrete can improve anti-permeability and salt corrosion resistance and protect steel bars. In underwater projects, chloride ions penetrate into concrete, causing rapid corrosion of steel bars, delamination of concrete, short lifespan, and serious damage. Underwater concrete pouring generally uses the conduit method. Due to the loss of cement slurry, it cannot bond well with the base layer and reduces the strength of the parts in contact with water. After adding silica fume into underwater concrete, these problems can be significantly improved.

 

3. Silica fume concrete is used in the emergency repair of traffic highway pavements and has extremely strong wear resistance. When a road is poured with ordinary concrete, it will take 28 days to open to traffic. Generally, it will take 3 days for early-strength concrete to open to traffic. Damage to the concrete highway pavement is inevitable. Repairs using conventional methods often cause traffic interruption, thus causing serious economic losses. The use of silica fume concrete with early strength and wear resistance has achieved ideal results in practical applications.

 

Silicon Metal Powder 200 Mesh 98.5%

 

 

 

Silicon metal powder for refractory	Size(mesh)	Chemical Comoositions(%)
		Si	Fe	Al	Ca
		Min	Max
	150 mesh	99	0.4	0.2	0.1
	200 mesh	98.8	0.4	0.4	0.1
	325 mesh	98.5	0.5	0.3	0.2
	400 mesh	98	0.6	0.4	0.3
	600mesh	97	0.8	0.7	0.6

 

silicon powder	Size (mesh)	Chemical Composition %
		Si	Fe	Al	Ca
		≥	≤
for chemical use	Si-(20-100 mesh)	99.6	0.2	0.15	0.05
	Si-(30-120 mesh)
	Si-(40-160 mesh)	99.2	0.4	0.2	0.1
	Si-(100-200 mesh)	99	0.4	0.4	0.2
	Si-(45-325 mesh)	98.5	0.5	0.5	0.3
	Si-(50-500 mesh)	98	0.6	0.5	0.3

 

 

 

Metallic Silicon Metal Powder

 

 

Silicon Metal Powder Manufacturers

 

 

If too little silica fume is added to concrete, it will not significantly improve the performance of the concrete. However, if too much silica fume is added, the concrete will be too sticky and difficult to construct. It will also have large dry shrinkage and poor frost resistance. Therefore, when adding silica fume, you should look for The best results can be obtained by finding the optimal dosage. Generally speaking, the effect is satisfactory if the dosage is within 10%. The appropriate dosage of silica fume is generally based on the silica fume used, the type of cement and the properties of the aggregate. Select several silica fume dosages, such as 3, 5, 7, 10%, etc., form the concrete specimen, and draw R-SF (strength- Silicon powder content) curve is determined. It is worth noting that the price of silicon powder is relatively high. When determining the optimal dosage of silicon powder, technical and economic indicators must also be considered.

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