High Alumina Cement
High Quality; Factory Price
Customized Type/Size; Professional Team
Brief Description
High alumina cement is an excellent unshaped refractory material for sale in Rongsheng Company, whose main chemical composition of High Alumina Cement includes calcium aluminate, plus about 50% of the alumina.High alumina brick is called bauxite cement before ,Which is a kind of hydraulic binder, being produced after the calcining and grinding with the bauxite and limestone as the raw material. So high alumina cement is also called calcium aluminate cement. High Alumina Cement is mainly manufacturered by rotary kiln sintering, arc furnace melting method and reverberatory furnace melting method, etc.
Specification
| High Alumina Cement | ||||||
| Cement Model | CA-65 | CA-68 | CA-70 | CA-75 | CA-80 | |
| Chemical Composition (%) | Al2O3 | 64-66 | 67-69 | 69-71 | 73-75 | 77-80 |
| CaO | 32-34 | 29-31 | 27-29 | 23-25 | 18-20 | |
| SiO2 | 1.8 | 1.2 | 0.3 | 0.3 | 0.3 | |
| Fe2O3 | 0.6 | 0.6 | 0.3 | 0.3 | 0.3 | |
| Specific Surface (cm2/g) | 4500 | 4500 | 5000 | 5500 | 7000 | |
| Setting time (h:min) | Initial setting (min) | 0:40 | 0:40 | 0:40 | 0:45 | 0:45 |
| Final Setting (min) | 8:00 | 8:00 | 10:00 | 10:00 | 10:00 | |
| Cold Modulus of Rupture (MPa) | 24 hour | 6.0min | 6.0min | 6.0min | 6.0min | 5.0min |
| 72 hour | 8.0min | 8.0min | 8.0min | 8.0min | 6.0min | |
| Cold Crushing Strength (Mpa) | 24hour | 45.0min | 45.0min | 45.0min | 45.0min | 35.0min |
| 72hour | 70.0min | 70.0min | 70.0min | 70.0min | 60.0min | |
| Refractoriness (°C) | 1680 | 1710 | 1730 | 1750 | 1770 | |
Attention in Using
(1) It can’t be mixed with lime and Portland cement, so the mixing equipment must be cleaned.
(2) It can’t be used for projects that direct contact the alkaline solution.
(3) It is not used in mass concrete, and it can’t contact the non-hardened Portland cement.
(4) Without the test, it can’t be added to any additional content.
