Low Cement Castable

Name:	Low Cement Castable

Refractoriness ≥ ℃: 1700
Working Temp ≤ ℃: 1450
Al2O3 %: 40-90
Bulk density g/cm³: 2.3-2.95

Product Description

Introduction

Low cement catable is developed on the basis of clay and refractory castables by Kerui Group. It mainly includes low cement, super low cement, no cement or ultra micro powder+sol, etc. Many advantages of refractory castables gather to it, such as high density, low apparent porosity, high strength, low abrasion, thermal shock resistance, corrosion resistance, etc.

Application

Low cement castable is used in the back kilneye, wicket cover and back of cooling machine of cement rotary kiln and other thermal equipment with good performance and long service life.

Physical and Chemical Index

Low Cement Castable		Corundum	High Alumina				Clay
Low Cement Castable		KR-90	KR-80	KR-70	KR-60	KR-50	KR-40
Chemical composition % ≥	Al₂O₃	90	80	70	60	50	40
Chemical composition % ≥	CaO	2.5	2.5	2.5	2.5	2.5	2.5
Bulk density g/cm3≥	110℃×24h	2.95	2.75	2.6	2.5	2.4	2.3
Bulk density g/cm3≥	1500℃×3h	2.9	2.7	2.6	2.4	2.4	2.3
Compressive strength MPa ≥	110℃×24h	60	45	45	40	40	40
Compressive strength MPa ≥	1500℃×3h	80	75	70	60	60	60
Breaking strength MPa ≥	110℃×24h	8	7	6	6	6	6
Breaking strength MPa ≥	1500℃×3h	10	10	10	8	8	8
Linear Change PLC % ≤	110℃×24h	-0.1	-0.1	-0.1	-0.1	-0.1	-0.1
Linear Change PLC % ≤	1500℃×3h	-0.5	-0.5	-0.5	-0.5	-0.5	-0.2
Max. service temperature ℃		1700	1600	1500	1450	1400	1350