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New Product Notice:Nanometer silica

Product model:SJZ-30 special for concrete
The strength of traditional cement-based concrete is low, adding a certain amount of nano-silica instead of a part of ordinary concrete binder, thereby improving the performance of concrete. Through special nano treatment, the surface energy of nano silica is higher, and it is easy to form a combination bond with hydration products in cement stones to produce CSH gel,and nano silica has special network structure, on the base of original network structure of cement paste can establish a new network, thereby forming a three- dimensional network,which can greatly improve the physical and mechanical performance and durability of cement paste. Therefore, nano-silica can be applied to high-strength cement-based pavement material.


Technical indicators

1

 

Project

Indicator

Appearance

white powder

Model

SJZ-30

Average particle size,nm

30

SSA,m2/g

200±10

Surface treatment

Nano-treatment agent

Nano silica purity %

≥ 99.5

Apparent density(g/L)

40-60

PH Value

5-7

Burning weightlessness (%)950℃x2h

≤6.0

Application:
1. The compressive and flexural strength of cement mortar can be improved by adding nano-silica into cement mortar.
2. can reduce the slump and expansion of concrete.
3. can increase the self-shrinkage strain of concrete; improve the anti-CL-permeability and anti-freeze durability of concrete.
4. can improve the transition interface structure between aggregate and paste in concrete.
5. It is recommended that nano-silica material be mixed in liquid water reducing agent firstly and then mixed with other materials.

Add amount: It is recommended to add 0.5-1%, users can test according to their actual situation and choose the best added value.


Packing:
10kg/bag 

 

 

 

 


 

 

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