Refractory Cement

                                                                         Refractory Cement

Refractory Cement Introduction

 

Refractory cement as a kind of hot sales refractory materials for furnace application in Rongsheng refractory refractory bricks factory manufacturing with widely used in coke ovens, glass furnaces, blast furnace hot blast stoves and other industrial furnaces.  Refractoy cement have good properties of good temperature resistance and good plasticity and convenient construction and have strong bonding strength and strong corrosion resistance have high refractoriness, good slag resistance, good thermal exfoliation. There are for sale cheap refractory cement in RongSheng fire bricks company can provide fireproof cement specification and category as well as competitive price & high grade quality, other specification according to customer requirements, welcome to contact us or email us for free quote or price list.

Refractory Cement Features

1. Refractoy cement have good temperature resistance.

2. Cement refractory have good plasticity and convenient construction.

3. Fireproof cement have strong bonding strength and strong corrosion resistance.

4. High temp refractory cement have high refractoriness, good slag resistance, good thermal exfoliation.

Refractory Cement Specification

Index
Specific surface area	M2/kg	369	≥ 300
Sio2	%	7.41	≤8.0
Al2o3	%	51.10	≥50
Fe2o3	%	2.19	≤2.5
R20	%	0.32	≤0.4
Initial setting time	min	166	≥30
Final setting time	min	223	≤360
Flexural Strength	Mpa(one day)	7.2	≥5.5
	Mpa(three day)	7.7	≥6.5
Cold Crushing Strength	Mpa(one day)	51.90	≥40
	Mpa(three day)	60.6	≥50

Refractory Cement Application

High temp refractory cement mainly used in coke ovens, glass furnaces, blast furnace hot blast stoves and other industrial furnaces.

High temperature fire cement is suitable for the metallurgy, building materials, machinery, petrochemical, glass, boiler, electricity, steel, cement industry.

Castable refractrory cement used in cement rotary kiln and other industrial furnaces for lining.

Refractory Cement Classcification

1.Low Lime Aluminate Refractory Cement

(1) The high-quality aluminum enamel and high-quality white ash stone are used as raw materials, and the refractory raw materials of appropriate ingredients are synthesized according to a certain ratio. After sintering, the clinker with low calcium aluminate as the main component is obtained and ground into fine powder. A hydraulic cementitious material having a fire resistance, that is called low calcium aluminate refractory cement.

(2) Refractory cement can be used as refractory concrete or refractory mortar with refractory materials with a refractoriness of 1770 ° C or higher, such as calcined bauxite and high alumina bricks. Fireproof is used as a refractory lining for some high temperature kiln and some long-term exposure to atmospheric and rain. High temperature engineering of erosion.

(3) High temperature fire cement can be combined with light aggregate to form heat-insulating coagulation and heat-resistant coagulation.

2.Calcium Magnesium Aluminate Cement

1) Refractory cement castable is made of an aluminate cement which is made by mixing high-quality bauxite and dolomite in an appropriate proportion and sintered and ground.

2) The refractory cement slag and the metal melt are chemically aggressive; in the case of the same alumina content, the refractoriness is higher due to the presence of spinel; the mixing water is less, the porosity with the castable refractory cement after cement hardening is lower, calcination small shrinkage, less loss of strength when heated to 1100 ° C for dehydration.

3) High temp fireproof cement can be used to refractory cement a variety of refractory aggregates, refractory castable cement is made into refractory mortar or concrete, fireproof cement used in cement rotary kiln and other industrial furnaces for lining.

Refractory Cement baking precautions

1.At the normal temperature of castable refractrory cement 350℃, the most likely to cause local burst, pay special attention to slow baking.

2.In the condition of poor ventilation and difficulty in discharging water and moisture, fireproof refractory cement is necessary to extend the holding time appropriately.

3.When baking with heavy oil, high temp refractory cement is necessary to prevent heavy oil from being sprayed on the surface of the lining to prevent local bursting.

4.When baking the cement castable with wood, direct contact with the flame often causes local overheating and should be protected.

5.For newly poured refractory cement, the castable cement takes at least 3 days before baking.

6.Cooling of the refractory cement lining should also be slow to avoid forced ventilation.

 Refractory Cement of Technical Requirements

1.Refractory Cement Fineness

The finer the refractory cement particles, the larger the specific surface areaof the high temp castable refractory cement, the faster the hydration reaction, the higher the strength in the early and late stages.

2.Refractory Cement Setting Time

In order to ensure sufficient time in the construction to complete the mixing, transportation, molding and other processes, the initial setting time of the cement should not be too short; after the completion of the construction, it is hoped that the refractory cement can harden as soon as possible, resulting in strength, so the end condensation time with the fire cement should not be too long.

3.Refractory Cement with Volume Stability

The uniformity of volume change of castable cement slurry during condensation hardening is called the volume stability of cement. If the volume changes unevenly, that is, the volume stability is poor, warping and cracking are likely to occur, the quality of the project is lowered or even an accident occurs.

Refractory Cement Using Method

The use of refractory cement is very simple. Castable refractory can be hardened after adding water. Generally, fire cement is not necessary to add other binders. Some refractory aggregates and powders can be added. If refractory cement is used alone, there will be a lot of cracks after high temperature.

Fireproof refractory cement can be used for cementing various refractory aggregates (such as corundum, calcined high alumina bauxite.),refractory castable cement made of refractory mortar or concrete, used for lining of cement rotary kiln and other industrial furnaces.

Refractory Cement Packing and Payment

 1. Fireproof refractory cement use the woven bag packaging.

2. refractory cement ued the bag plus pallets.

3.Fireproof refractory castable cement can be packaged according to customer requirement.

4. Payment terms, accept T/T ,PayPal, Alipay, L/C at sight , West Union and Money Gram.

Refractory Cement Manufacturer in RS Refractory Castable Factory

(1) Rongsheng refractory castable factory has been engaged in refractory material industry for more than 20 years. Rongsheng refractory castable factory have a big technological team, there are more than 15 senior designers for the furnace & kiln. Refractory castable factory are good at different technological field, such as refractory bricks , refractory castable , lightweight insulation firebricks and prefabricated bricks according to client requirement .

(2) Rongsheng refractory bricks manufacture have perfect after-sales service system. From raw material procurement to final product inspection and after-sales service. Ensure that the product offered to the user is 100% qualified.

(3) Rongsheng refractory castable factory have any certificate according to client requirement,such as ISO9001 certificate, CE

(4) Welcome to inquiry, Rongsheng refractory castable factory provide free quote sheet.