fluidity test method for microsilica-pg电玩城

the microsilica is very fine. when we use the microsilica, we often use the fluidity of the microsilica. in fact, we can know how the fluidity of the microsilica is through simple test. 

test of microsilica liquidity the simplest method is first to prepare a clean piece of glass, to ensure that the glass door is smooth and clean as far as possible, and then prepare the right amount of microsilica and pure water, according to a certain percentage against the good, the microsilica and water samples and testing of microsilica mix, mix into a paste, then slowly stir into paste microsilica specimen gently down on the glass. 

let it flow slowly. after the above action is completed, the moisture in the microsilica test sample is fully volatilized. 

volatile observation. under normal circumstances, when the moisture of the micromicrosilica test sample is completely evaporated, we can make measurement and comparison through visual measurement, ruler assistant and other tools. 

the more flat the surface of the microsilica  test sample is after drying, the larger the area is, the better the fluidity of the micromicrosilica is. the fluidity of microsilica has a certain relationship with the silicon content, but it is not proportional. 

the silicon powder is also 92, some of which are highly fluidity, and some of which are not fluidity at all. in addition, dispersants must be added to the test. 

if sodium tripolyphosphate does not work, try it with p530. if neither does work, the microsilica cannot be used in the refractory industry. for encryption of microsilica can be used in a simple way, namely: 40 grams of water: 60 grams of microsilica: 0.2 grams of dispersant (melamine or p530), after fully mixing, dumping on the glass plate, natural flow, flow measurement area, if the average diameter greater than 150 mm in the liquidity generally is very good, but the best to do an amorphous block test, according to the water content determine liquidity is good or bad. but now the domestic microsilica can reach the standard of too little. 

in addition, for the crypto-microsilica, the above method cannot be used, only the amorphous sample can be used for determination. as for the amorphous sample, since we mainly test the fluidity of the microsilica, we can determine a ratio at random, for example, if there is bauxite aggregate and fine powder, we can adopt the following proportion: after weighing the above raw materials, add the adhesive sand mixer to dry mix them, and then add 6% water while stirring. after stirring for three minutes, look at the consistency of the mixture. if it is thinner and has good fluidity, the quality of the microsilica can be proved. if you can't flow, add some more water and determine how much water you need. but it is judging by experience, if you need accurate, need to choose a good liquidity microsilica, determine a standard water added, the mixture after the cement mortar flow tester (table method) for determination of gravity and beat 15 times the flow of value, the value for the standard flow value, determination of other kinds of microsilica, look at the reach the demand of standard flow value, to determine microsilica liquidity is good or bad. silicon powder is a promising material in the field of high and new technology at home and abroad. widely used in construction, chemical, metallurgy and other industries. 

a large number of microsilica is mainly used for cement and concrete admixtures, to improve the performance of cement or concrete, dispensing with super-high strength high, wear-resisting, scouring resistance, corrosion resistance, resistance to penetration antifreeze, the early strength of special concrete or composite cement, used in large water scraping, water and electricity, harbor wharf, railway bridge, highway, airport runway, tunnel, city high-rise building engineering, etc. it can be used in paints, coatings, resins and other polymer filler. it is used for rubber to improve its extensibility, tear resistance and tensile strength. it can also be used in the production of refractories and ceramic products to effectively improve the strength and durability of products.