1100C CALCIUM SILICATE INSULATION BOARD

1100C CALCIUM SILICATE INSULATION BOARD

　　　Using silica fume(microsilica) ,quartz and lime as raw material, synthesized through dynamic hydrothermal process, reinforced with glass fibre and paper fibre , ca-si-board is formed by press.Amorphous silica fill up interspace between Xonotlite crystal ,it heighten fire-resistance temperature, mainly for back-up insulation of all refractory xonstructions.

SPECIFICATION AND TECHNICAL DATA

A . Chemical Analysis

SiO2……………… 47-48%

CaO ………………　44-45%

Al2O3 …………… 0.3-0.4%

MgO………………… 0.5--0.7%

Fe2O3 ……………… 0.3--0.4%

Na2-K2O ………… 0.9--0.12%

Lgnition loss(mainly H2O)…… 6--7%

B. Our Standard GB/T10699-1998 TYPE-1998Ⅱ

Reference Standard　　Europe Standard） EN1094-6-1998

ITEM	Unit	YONGDA BRAND				GB/T10699 -1998 TYPE-Ⅱ
ITEM	Unit	HCS-23H	HCS-25H	HCS-27H	HCS-30H	≤220, ≤270
Bulk density	kg/m3	230 ±10%	250 ±10%	270 ±10%	300 ±10%	≤220, ≤270
Flexural Strength	MPa	≥0.45	≥0.50	≥0.55	≥0.60	≥0.30
Compressive Strength	MPa	≥0.8	≥0.9	≥1.0	≥1.1	≥0.50
Thermal Cond.	W/m.k	200℃ 0.085 400℃ 0.100 600℃ 0.152 800℃ 0.214	200℃ 0.095 400℃ 0.108 600℃ 0.156 800℃ 0.216	200℃ 0.098 400℃ 0.110 600℃ 0.158 800℃ 0.218	200℃ 0.102 400℃ 0.116 600℃ 0.164 800℃ 0.226	100℃ 0.065 200℃ 0.075 300℃ 0.087 400℃ 0.100
Service Temp.Limit	℃	1100	1100	1100	1100	1000
Linear Shrinkage (EN 1094-6-1998)	%	≤2 (1050,12hrs)	≤2 (1050,12hrs)	≤2 (1050,12hrs)	≤2 (1050,12h)	≤2 (1000,16hrs)

NOTE: No China Standard for 1100C ca-si-board at present,so we use Europe standard EN1094-6-1998 for linear shrinkage test,12h at 50℃ below max. service temp.

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