微硅粉

商家:
宁夏奕亨国际贸易有限公司
认证:
普通商家
参考价:
900.00元/吨
地区:
宁夏 - 银川
类别:
基础建材 - 混凝土及制品
品牌:
 
产地:
宁夏  
型号:
85-97  
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产品描述

 更新于 2009-09-10 17:11:57 查看商家信息

 Our silica fume is produced in global main ferroalloy manufacturing area, that is in the east of Helan mountain crossed by Ningxia and Inner Mongolia province located in northwest of China, where is surrounded by high energy consuming industry chain. Because of high grade silica with less impurity as well as abundant coal and electricity, it has large production of ferro-silica and metallic silicon. And gathered silica fume is in steady quality and adequate supply. 

According to grade of SiO2 , the silica fume is divided to 7 levels: Grade 85, Grade 88, Grade 90, Grade 92, Grade 94, Grade 95.

Grade 85

Chemical & Physical Analysis

ASTM C1240-03

GB/T 21236-2007

SiO2 (%)

85

≥85

C(%)

 

≤2.5

CI(%)

 

≤0.3

Moisture(%)

3.0

≤3.0

L.O.I(%)

6.0

≤6.0

Specific Surface (BET-m2/gram)

15

≥15

Pozz. Activity Index (%) - 7 days accelerated curing

105

 

Pozz. Activity Index (%) -  28 days normal curing

 

≥85

Retained on 45 micron sieve (%)

10

≤10.0

Variation from avg. retained on 45 micron (%-points)

5

 

Water requirement ratio (%)

 

≤125

Grade 88

Chemical & Physical Analysis

ASTM C1240-03

GB/T 21236-2007

SiO2 (%)

88

≥88

C(%)

 

≤2.5

CI(%)

 

≤0.2

PH value

 

4.0-8.5

Moisture(%)

3.0

≤3.0

L.O.I(%)

6.0

≤4.0

Specific Surface (BET-m2/gram)

15

≥15

Pozz. Activity Index (%) - 7 days accelerated curing

105

 

Pozz. Activity Index (%) -  28 days normal curing

 

≥85

Retained on 45 micron sieve (%)

10

≤5.0

Variation from avg. retained on 45 micron (%-points)

5

 

Water requirement ratio (%)

 

≤125

Grade 90

                    Chemical and physical requirements

GB/T 21236-2007

Item

Spec.

SiO2(%)

90

≥90

Al2O3(%)

 

≤1.5

Fe2O3(%)

 

≤2.0

CaO+MgO(%)

 

≤2.0

K2O+Na2O(%)

 

≤2.0

C(%)

 

≤2.0

CI(%)

 

≤0.1

PH value

 

4.0-8.5

Moistureafter packing(%)

1.0

≤2.5

L.O.I(%)

3.0

≤3.0

Retained on 45 micron sieve (tested on Undensified, %)

1.5

≤3.0

Specific Surface(m2/g)

 

≥15

Pozz. Activity Index (%) -  28 days normal curing

 

≥85

Water requirement ratio (%)

 

≤125

Bulk Density - Undensified (when packed, kg/m3

200-350

 

Bulk Density - Densified (when packed, kg/m3

500-700

 

Grade 92

Chemical and physical requirements

GB/T 21236-2007

Item

Spec.

SiO2(%)

≥92

≥92

C(%)

≤2.0

≤2.0

CI(%)

 

≤0.1

Fe2O3(%)

≤1.0

≤1.0

Al2O3(%)

≤2.0

≤1.0

CaO(%)

≤1.2

≤1.5

MgO(%)

≤0.5

K2O(%)

≤1.5

≤1.5

Na2O(%)

≤0.5

Moisture(%)

≤1.0

≤2.0

Loss on Ignition at 975 C

≤3.0

≤3.0

Coarse Particles >45?m (325mesh) (%)

≤1.0

≤3.0

PH value

4.5-7.5

4.0-8.5

Specific Surface(m2/g)

 

≥15

Pozz. Activity Index (%) -  28 days normal curing

 

≥85

Water requirement ratio (%)

 

≤125

Bulk Density(as packed)

200-350kg/m3 U

500-700 kg/m3 D

 

Grade 94

Analysis/Properties

Value

SiO2 Silicon Dioxide, Amorphous

94%Min.

Fe2O3 Iron Oxide

0.19% Typical

Al2O3 Aluminium Oxide

0.27% Typical

CaO

0.26% Typical

MgO

0.49% Typical

K2O Potassium Oxide

0.50% Typical

Na2O Sodium Oxide

0.38% Typical

P2O5 Phosphorus Pentoxide

0.26% Typical

MnO Manganese Oxide

0.25% Typical

TiO2 Titanium Oxide

0.21% Typical

Loss on Ignition

2.88% Typical

Coarse Particles >45?m (325mesh)

1.2%Max.

Bulk Density(as packed)

200-350kg/m3 U

500-700 kg/m3 D

Grade 95

Chemical and physical requirements

GB/T 21236-2007

Item

Spec.

SiO2(%)

≥95%

≥95%

Al2O3(%)

0.21

≤1.0

Fe2O3(%)

0.08

≤1.0

C(%)

 

≤1.0

CI(%)

 

≤0.1

CaO(%)

0.11

≤1.0

MgO(%)

0.21

K2O(%)

0.32

≤1.0

Na2O(%)

0.24

P2O5(%)

0.09

 

MnO(%)

0.035

 

TiO2(%)

0.012

 

PH value

 

4.5-7.5

L.O.I (%)

2.63

≤1.0

Coarse Particles >45?m (325mesh) (%)

≤1.2

≤2.0

Specific Surface(m2/g)

 

≥15

Pozz. Activity Index (%) -  28 days normal curing

 

≥85

Water requirement ratio (%)

 

≤125

Bulk Density(as packed)

200-350kg/m3 U

500-700 kg/m3 D

 

Antiultraviolet and ageing resistance flexible freight bags-FIBC is adapted. Two types of 850KG and 900KG.

 

 

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联系地址
宁夏银川市兴庆区珠市巷5号3号楼
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