Refractory Mortar

Refractory mortar is also called joint filler,it is composed of a certain particle ratio of refractory powder,binder and additive,pour water or liquid binder to tune into a paste.
1.Refractory powder
According to difference of refractory powder,there are mortar with clay,high alumina,silica,magnesia, corundum,mullite,zircon,insulation etc.The material of refractory mortar and the material of refractory brick are basically identical.
2.Binder--Cement,phosphoric acid or phosphate,sodium silicate.

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$RefractoryMortar1$ $RefractoryMortar1$

$RefractoryMortar2$ $RefractoryMortar2$

$RefractoryMortar3$ $RefractoryMortar3$

$RefractoryMortar4$ $RefractoryMortar4$

$RefractoryMortar6$ $RefractoryMortar6$

$RefractoryMortar5$ $RefractoryMortar5$

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Technical data sheet

Items/Type		Fire clay mortar			High alumina mortar
Raw material		Flint clay clinker			High alumina clinker
Binder		Soft clay and chemical bond
Al2O3 %		≥38	≥42	≥45	≥55	≥65	≥75
Refractoriness °C		≥1690	1710	1730	1760	1780	1780
Bonding time min		12	≥12	≥12	≥12	≥12	≥12
Modulus of rupture MPa	110°C×24h	≥1	≥1	≥1	≥1	≥1	≥1
Modulus of rupture MPa	°C×3h	1200×3h ≥3	1200×3h ≥3	1200×3h ≥3	1400×3h ≥4	1400×3h ≥4	1400×3h ≥4
Particle size %	-1.0mm	100	100	100	100	100	100
	+0.5mm	≤2	≤2	≤2	≤2	≤2	≤2
	-0.074mm	≥50	≥50	≥50	≥50	≥50	≥50
Using temperature °C		1300	1350	1400	1420	1450	1500

Item		Silica mortar
Raw material		Cab-O-sil or adding some ganister sand
Binder		Soft clay and chemical bond
SiO2		94	92	96
Refractoriness °C		≥1690	≥1670	≥1710
Chemical composition,%	SiO2	≥94	≥92	≥96
	Al2O3	-	-	≤0.6
	Fe2O3	≤1.0	-	≤0.7
Cold Rupture Bonding Strength After Drying(Mpa)	110°C×24h	≥1.0	≥1.0	≥0.8
Cold Rupture Bonding Strength After Drying(Mpa)	1400°C×3h	≥3.0	≥3.0	≥0.5
Refractoriness Under Load 0.2MPa °C		≥1600	≥1500	≥1620
Bonding Time min		1-2	1-2	2-3
Grain Composition %	+0.5mm	≤1.0	≤3.0	≤2.0
Grain Composition %	-0.074mm	≥60	≥50	≥10

Item		Magnesia mortar
Raw material		magnesia clinker
Binder		Clay,bentonite or chemical bond
MgO (% )		≥84	≥87	≥90	≥93
SiO2 (%		≤8.2	≤6.7	≤6.4	≤3.5
Particle size (mm)	+0.5	<2.0
	-0.074	>60
Bond strength (MPa)	110°C×24h	>5	>3	>5	>3
	1500°C×3h	>50	>45	>50	>45
Bonding time (second)		>40”	>40”	>40”	>40”

Item			Insulating mortar
Type			Fire clay		High alumina		Silica
Chemical composition,%		AL2O3, ≥	35	30	70	60	92
Chemical composition,%		SiO2, ≥	-	-	-	-	92
Bond strength (Mpa)		110°C×24h	≥0.5	≥0.5	≥1.0	≥1.0	≥0.5
Bond strength (Mpa)		°C×3h	1200×3h ≥1.0	1000×3h ≥0.5	1500×3h ≥1.5	1400×3h ≥1.5	1400×3h ≥1.0
Thermal Conductivity（W/m.k）(350°C)			≤0.35	≤0.35	≤0.6	≤0.5	-
Grain Size(%)	-1.0mm		100	100	100	100	100
Grain Size(%)	-0.076mm		≥50	≥50	≥50	≥50	≥50
Bonding time (min)			1～2	1～2	1～2	1～2	1～2

Item			Mullite mortar		Corundum mortar
Classification			55	70	80	85	90
Al2O3 %			≥55	≥70	≥80	≥85	≥90
Refractoriness °C			≥1770	≥1790	≥1850	≥1850	≥1850
Modulus of rupture MPa		110°C×24h	≥2	≥2	≥2	≥2	≥2
Modulus of rupture MPa		°C×3h after	1400×3h ≥6	1500×3h ≥6	1500×3h ≥7	1500×3h ≥7	1500×3h ≥7
Refractoriness under load °C			≥1400	≥1500	≥1650	≥1700	≥1700
Bonding time min			1-2
(1500°C,3h) Linear change (%)			-	-	-	0~+0.1	0~+0.1
Particle size (mm)	+0.5		≤1	≤1	≤1	≤1	≤1
Particle size (mm)	-0.076		≥50	≥50	≥50	≥50	≥50

Feature

1.Granularity standard,

2.High adhesive strength,

3.Good gas tightness,small gap for construction,

4.Corrosion resistance, good slag resistance,

5.Good resistance to chemical attack
6.Low shrinkage at high temperature

7.Good volume stability,good structural integrity,

8.Long working time

Application

1)Clay mortar is used for laying and repairing fire clay brick masonry construction of blast furnace,hot blast stoves,coke oven,soaking pit furnace,heat exchanger,boiler etc furnace kiln.

2)High alumina mortar is used for laying and repairing high alumina brick masonry construction of hot blast stoves- furnace roof,combustion chamber, regenerator,blast furnace,soaking pit furnace ,heating furnace,coke oven,boiler etc industrial furnace kiln.

3)Silica mortar is used for laying and repairing silica brick masonry construction of blast furnace hot blast stoves,coke oven, glass smelting kiln furnace,acid melting furnace etc industrial furnace kiln.

4)Magnesia mortar is used for laying and repairing manesite brick, magnesite chrome brick, magnesite alumina brick masonry construction of electric furnace, oxygen converter,BOF, Non-ferrous metal smelting furnace kiln.

5)Mullite mortar and corundum mortar is used for laying and repairing mullite brick,corundum brick masonry construction of high temperature kiln furnace of steel,electronics,petrochemical,fertilizers,non-ferrous metals,refractory material etc.

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Email: sale@ruisenrefractory.com

Tel：+86 15038130416;+8615517152929

Whatsapp:+86 15038130416;+8615517152929

Address:No.112 Jianshe West Road,Zhongyuan District,Zhengzhou,Henan,China

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