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Position:Jinlin fused alumina>>Refractory>> High Alumina Cement

High Alumina Cement

Author:Jinlin corundumTo update: 2016-09-19

Aluminous cement hear the word, your first impression is not that we do with the construction of cement it? Or you might think it refractory mortar belong to the same type because they are back with “cement” the word, but it is not true, aluminous cement and refractory mortar similar but not the same, they each have their own properties and uses. The following is a description of our company is doing for alumina cement, the convenience of our customers and friends can find their desired products as soon as possible.

I.Aluminous cement overview:

Aluminous cement is also known as alumina cement, refractory mortar , we put it referred to as cement, because of its bauxite and limestone as raw materials, after calcination obtained in aluminate calcium is the main component, an alumina content of about 50% of the clinker, and then grinding hydraulic binder material, which is a hydraulic binder.

Aluminous cement is often yellow or brown, there were gray.

II.Aluminous cement features:

According to high alumina cement hydration we can conclude that high alumina cement has the following features:

1.Fast hard early strength: aluminous cement setting and hardening fast, a day to more than 80% label strength of three days up to 100% label strength.

2.Frost resistance, corrosion resistance: focus on the release of high alumina cement hydration heat, frost, corrosion resistance better than ordinary cement and other cement, and strong anti-sulfate mineral water erosion performance.

3.Waterproof performance: high alumina cement concrete because of its dense, so impervious, strong water resistance.

4.Good heat resistance: aluminous cement no Ca (OH) 2 and due to temperature changes caused by the volume change of dicalcium effect, it is a good performance of heat-resistant cement.%e8%8b%b1%e6%96%87%e9%ab%98%e9%93%9d%e6%b0%b4%e6%b3%a5

III.The use of high alumina cement:

a.Aluminous cement from fast hard early strength characteristics, we can make rapid hardening concrete and rapid hardening mortar, applied to get the building, repair and other special needs of the project.

b.And the production of heat-resistant concrete mortar: aluminous cement is applied to the cementitious material is generally heat engineering, materials widely used in various kilns in metallurgy, chemical, petroleum, machinery, building materials and other industries.

c.Low temperature construction: alumina cement hydration fast, centralized heat faster at low temperatures than silicate cement. 5 ℃ above construction can be removed with cold vapor conservation measures to accelerate the progress of the project.

d.For the anti-erosion project sulphate: good aluminous cement sulphate resisting erosion properties, suitable harbor works, railway construction and the Salt Lake area construction projects.

e.The production of other varieties of cement: high alumina cement raw materials to produce a variety of expansion and contraction compensation and special heat-resistant, corrosion resistant cement.

f.Other uses: aluminous cement is the main raw material for the production of water purification agent, as well as the production of inorganic granite (artificial marble) is the main raw material, the casting model can also be used, such as spark plugs.

IV.Aluminous cement notes:

1.In the construction process, generally not with portland cement, lime, calcium hydroxide can precipitate a gel substance mixed prior to use equipment must be clean.

2.When the concrete in direct contact with the soil, the application of waterproof material isolation.

3.Within three to six hours after forming nature conservation should not be water, otherwise the water to make alumina gel continuously precipitated and cause it does not harden.

4.Each of the concrete mixing amount should be controlled is preferably used within 20 minutes, mixing water PH value 7 ± 0.5, should be continuously stirred during the hardened concrete can not be re-used water, the concrete may not otherwise hardening.

5.Untested and may not add any additional objects.

6.When the use of concrete in the interior of the container, the container must ensure internal ventilation.

7.Aluminous cement and portland cement concrete may not be used in contact yet hardened.

8.Aluminous cement generally not pouring concrete, the thickness should not be more than 0.3 meters, such as super this limit, it must immediately water conservation after the concrete has hardened, take measures to cool down.

9.When the selection of refractory aggregate and powder must be selected in line with the design requirements (chemical composition, particle size distribution, control of hazardous substances) of clinker ingredients.

Shizui Mountain City Jinlin Fused Alumina Refractories Co., Ltd. is a diversified manufacturing plants, research and development, production, sales and service in one. The company mainly produces alumina products, brown fused alumina, white fused alumina, silicon carbide, bauxite, alumina ball, garnet, aluminum oxide powder, zircon sand, castable and other professional production and processing company with a complete quality and scientific management system.

I believe you must have a certain understanding through this article to alumina cement, if you still have questions, please contact us. Thanks for reading, we will continue to update more articles like, I hope for your help! Stay tuned to our website Oh!

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