Production requirement of high alumina cement
1, fineness: the finer the cement particles, the larger the surface area, the faster the more full hydration, early and late strength are higher. State regulations: the specific surface area should be more than 300 square meters / kg, otherwise not qualified.
2, setting time: in order to guarantee in the construction have plenty of time to finish the mixing, transportation, molding, and other various process, cement and its initial setting time shoulds not be too short; after the completion of construction, hope cement as soon as possible hardening and strength, therefore the end coagulation time shoulds not be too long. Portland cement at the beginning of the first set of time shall not be earlier than 45 minutes, the final setting time shall not be later than 390 minutes.
3, volume stability: cement paste in the coagulation process of volume change uniformity called the volume stability of cement. If the volume change is not uniform, that is, the volume stability is poor, prone to warping and cracking, reduce the quality of the project and even the accident.
4, refractory cement baking refractory cement lining baking, must pay attention to the following matters:
1) at room temperature 350 degrees, the most likely to cause local burst, to pay special attention to the slow baking. If there are still a lot of steam after the 350 degree heat, still should slow down the speed of heating.
2) in the condition of bad ventilation, water vapor is not easy to discharge, to properly extend the heat preservation time.
3) when using heavy oil for baking, to prevent oil sprayed on the surface of the furnace lining, to prevent local burst.
4) when using wood baking, direct contact with the flame is often caused by local heating too fast, should be protected.
5) to the new cast of refractory cement, at least through the 3D can be carried out after baking.
6) for refractory cement lining should also slow cooling, avoid forced ventilation.
High alumina cement application
High alumina cement and sulphoaluminate cement refractory cement, equivalent to the cement 625#. Because of its excellent fast setting, high strength, resistance to high temperature characteristics of that day intensity can reach 80% and refractoriness up to 1450 degrees, refractory concrete strength up to 55MPa, is one of the industrial furnace engineering excellent high temperature binder material.
High Alumina Refractory Cement is manufactured from Calcined Alumina and high purity lime. It is used as a binder for all types of castable refractories. Ashapura offers two ranges; HARB 50 and HARB 70 with minimum alumina content of 50% and 70% respectively.
Al2o3 73%, fe2o3 .3% pce more than 31 norton. 50 kgs.
High Alumina Cement With 45%, 55% Alumina Contain
Also known as alumina cement, high alumina cement refractory cement, aluminate cement, collectively known as aluminate cement, bauxite and limestone as raw material, after the calcination of calcium aluminate as main ingredients, alumina content is about 50% of the clinker, again into the water rigid gelled material. High alumina cement is often yellow or brown, and gray. Shizuishan jin lin corundum refractories co., ltd., the production of high alumina cement has a rapid hardening, early strength, corrosion resistance, resistance to high temperature of the water rigid gelled material; it is a kind of high-quality building materials, is also a kind of loose refractory for gelling property, in metallurgy, building materials, oil chemical, electric power, food and other industries has been widely used. Jin lin alumina cement is also known as aluminate cement, refractory cement, the equivalent of 625 # cement, because of its excellent fast setting, high strength, high temperature resistance characteristic, a day strength can reach 80%, up to 1450 degrees refractoriness, refractory concrete strength can reach 55 mpa, is the excellent high temperature industrial kiln project one of binder materials. 1. Preparation of monolithic refractories. 2. Make plaster alumina expansive cement, self-stressing cement cement and other special purposes. 3. The scrambling, repair, resistance to sulfate erosion and winter construction engineering and other special needs
Product Description Concrete Castable Mortar High Alumina Refractory Dry Cement means the cement with a refractoriness not less than 1580�°C. Concrete Castable Mortar High Alumina Refractory Dry Cement uses calcined bauxite and limestone as raw materials, and refractory cement calcined to produce clinker with calcium aluminate as the main component and about 50% alumina content, and then ground to produce a hydraulic cementing material. According to different composition, Concrete Castable Mortar High Alumina Refractory Dry Cement can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement and dolomite refractory cement. Concrete Castable Mortar High Alumina Refractory Dry Cement can be used to cement various refractory aggregates (such as corundum, calcined high alumina bauxite, etc.) to make refractory mortar or concrete, Concrete Castable Mortar High Alumina Refractory Dry Cement is used as lining in cement rotary kilns and other industrial kilns. Packing&Shipping Packing of Concrete Castable Mortar High Alumina Refractory Dry Cement: 1.on wooden pallets with plastic cover: wooden pallet size :930*930 or 1000*1000mm, 2.Load weight of each pallet: 1.5-2.0 tons, 3.230*114*65mm:512PCS/Pallet, 230*114*75mm:448PCS/Pallet. 4.Castable:25kg/bag,1.25ton per jump bag. Shipping of High Alumina Refractory Dry Cement: 1.Our packaging is as per customerâ??s request: 2.Normal goods delivered by sea transport 3.Sample shipping by express 4.We will shipping and delivery goods timely, quanlity and quantity guaranteed, and also in accordance with the contract and customer's requirment completely. Payment Item : 1. Payment: T/T, Western Union,LC; Usually 30% deposits,70% balance before delivery or negotiations to solve. 2. MOQ: Usually 1Tons 3. Quality Warranty: 1 years Delivery time : 1.Stocks:Within 5-7 days after receive the deposit. 2.Customization:Within 15-30 days after receive the deposite.
Cement kiln high alumina bricks have great features of good thermal shock resistance, high strength, good resistance to chemical corrosion, low thermal expansion, low thermal conductivity, low firing temperature, the material properties are improved greatly, and energy consumption is also significantly reduced. As frequently used cement kiln refractories, high alumina bricks are mainly used in precalciner, grate cooler, and these parts of cement rotary kiln, such as outlet zone, inlet zone, transition zone, calcining zone and preheating zone. For more information, please enter the URL:
325 425 525 Portland cement Specification Sulfate Resistant Portland Cement SRPC also named Sulfate Resistant Cement SRC is one of hydraulic binding materials can resistance to sulfate ion attack Type High Sulfate Resistant Cement PHSR and Moderate Sulfate Resistant Cement PMSR Grade 325 425 Application To make concrete of sulfate resistance marine concrete maritime works To make cement boards precast cement products cement pipes precast concrete pile shop fabricated members Sea water attack resistance projects for example sea wall dam mariculture project sea water desalination project oceanarium etc Chemical resistant engineering concrete To make sulfate resistant concrete engineering of harbor water conservancy underground tunnel drainage pipe diversion works road and bridge foundation etc
We offer high quality white cement (52.5) for 50 kg bag or as per customer requirement. Our materials are good for construction projects and decorative works.
Supplier: High alumina refractory cement
