85% Microsilica Concrete Admixture

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China Main Port
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TT or LC
Min Order Qty:
10 Tons m.t.
Supply Capability:
3600 Tons per Month m.t./month

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Product Description:

1.85% Microsilica -concrete admixture


2.Stable quality


3.high tempreture to 1600 degree


4.good activity indicators



Technical Data:


Standard Value

Silicon Dioxide(SiO2)

min 85 %

Loss on Ignition(L.O.I) @ 975°C

max 4 %

Moisture Content

max 3 %

Percent Retained On 45μm (325 sieve)

max 2 %

Bulk Density



Microsilica CAS #: 69012-64-2

Microsilica Packing: 900kg/jumbo bags and 25kg small plastic woven bags.


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Q:sand and cement to brick/block ratio?
7 bags of masonry cement per 1000 bricks (minimum 6 maximum 8, but usually 7 is a good amount) Nota Bene: the ration is not 4 to 1, that would be disasterously week The ratio is 3 sand to 1 cement, or slightly less than 3 parts sand to each 1 part of cement. 1 ton of sand per 1000 bricks Now for the blocks, you'll need about 8 bags of masonry or type S cement plus one more ton of sand.
Q:Why does cement hardens when exposed with air and water?
Cement does not need to be exposed to air to harden. It can cure under water! This is why it's called hydraulic cement. Curing is one of the most important steps in concrete construction, because proper curing greatly increases concrete strength and durability. Concrete hardens as a result of hydration: the chemical reaction between cement and water. However, hydration occurs only if water is available and if the concrete's temperature stays within a suitable range. During the curing period-from five to seven days after placement for conventional concrete-the concrete surface needs to be kept moist to permit the hydration process. new concrete can be wet with soaking hoses, sprinklers or covered with wet burlap, or can be coated with commercially available curing compounds, which seal in moisture.
Q:Could you make Portland cement with one component only, excluding the gypsum?
Yes. I worked before in a cement plant (at Tinaan, Naga, Cebu, Philippines). I was a shift control chemist and we fed only one component to the raw grinding process which we deposited to the slurry basin and subsequently mixed it homogeneously at the right proportions before burning in the rotary kiln to produce the clinker. Then in the finish grinding operation, we added the gypsum to control the setting time of the finished product, the cement, at approximately the proportion of 97% clinker and 3% gypsum to produce Type 1 Portland Cement. We were blessed with a very good limestone quarry that approximated almost 75% of Calcium Carbonate to crush and grind and burn to clinker and then grind it to produce cement. So almost everyday, we had only a single component to produce the cement. However, we also had in our feeders aside from the limestone, the marl feeder, the silica feeder and the pyrite cinder feeder to fine tune the raw mix, and especially when we are to produce another type of cement. A good day to you.
Q:Was cement invented?
Good guys (great guys actually)
Q:Does wearing snowboard boots on the cement damage them?
Like any footwear, they will wear out by walking on cement eventually. I would recommend not walking on cement too much with them since it will make the bottoms smooth and lose their grip and might slide a bit in your bindings. If you can, wear a pair of shoes and carry your boots. If this is too big of a hassle, just keep doing what you're doing. It won't be a big deal unless you're a very good boarder and the smallest things make a difference
Q:How does cement work?
When water is added it starts a process beginning with the formation of short hexagonal crystals. it is this process of crystal formation which begins the setting process and usually is substantially complete after 24 hours. However, the crystals continue to form and fill up the spaces for weeks and even months as long as the cement is not allowed to dry out. When mixing cement it is recommended to keep it wet for at least 3 days, when it reaches maybe 80% of its final strength, but a week to ten days is better. Cement will continue to harden for several years. The strongest cement you can get is that which sets up underwater and is never allowed to dry out.
Q:Does the cement/glue for your braces come off o.o?
Dental Glue For Braces
Q:i wrote a poem titled 'wet cement' please rate from 1-10 :)?
i give you a 9. it would be better if it was a little longer.
Q:How is Portland Cement made?
Portland cement is the most common type of cement in general usage in many parts of the world, as it is a basic ingredient of concrete, mortar, stucco and most non-specialty grout. It is a fine powder produced by grinding Portland cement clinker (more than 90%), a limited amount of calcium sulfate which controls the set time, and up to 5% minor constituents (as allowed by various standards). Portland cement, the basic ingredient of concrete, is a closely controlled chemical combination of calcium, silicon, aluminum, iron and small amounts of other ingredients to which gypsum is added in the final grinding process to regulate the setting time of the concrete. Lime and silica make up about 85% of the mass. Common among the materials used in its manufacture are limestone, shells, and chalk or marl combined with shale, clay, slate or blast furnace slag, silica sand, and iron ore. Portland was developed from cements (or correctly hydraulic limes) made in Britain in the early part of the nineteenth century, and its name is derived from its similarity to Portland stone, a type of building stone that was quarried on the Isle of Portland in Dorset, England. Joseph Aspdin, a British bricklayer, in 1824 was granted a patent for a process of making a cement which he called Portland cement. In its simplest form, concrete is a mixture of paste and aggregates. The paste, composed of portland cement and water, coats the surface of the fine and coarse aggregates. Through a chemical reaction called hydration, the paste hardens and gains strength to form the rock-like mass known as concrete. Within this process lies the key to a remarkable trait of concrete: it's plastic and malleable when newly mixed, strong and durable when hardened. These qualities explain why one material, concrete, can build skyscrapers, bridges, sidewalks and superhighways, houses and dams.
Q:is cement a natural resource?
Cement is a nonrenewable resource made from limestone. Limestone is comprised of mostly Calcium Carbonate.(CaCO3) a naturally occurring rock type. It is mine from the ground in open quarries or underground mines. It is then ground very finely and heated to make it into cement powder. Once it is used, it is used.
Relying on many years of a good reputation and good service, we have many customers from at home and abroad. We have established long-term and steady business relationship with them. Our Microsilica products are not only selling well in China, but also exported to the United States, Germany, Australia, Asia, and other countries and regions around the world.

1. Manufacturer Overview

Location Luoyang, Henan, China (Mainland)
Year Established 2011
Annual Output Value US$2.5 Million - US$5 Million
Main Markets North America; South America; Eastern Europe; Southeast Asia; Oceania; Mid East; Eastern Asia
Company Certifications ISO 9001:2008

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