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Bleaching Earth

Microsilica

Hammer D80

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Hammer D88

specification

test report

MSDS

RFQ

Hammer D90

Hammer D93

Hammer D96

Coal Fly Ash

GGBFS

Cement Clinker

Others


SPECIFICATION

Hammer ® - Microsilica D88 / Silica Fume D88

Product description

Hammer ® - Microsilica D88 is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnaces as a by-product of the production of elemental silicon or ferro silicon alloys, which can be used in a variety of cementitious products such as concrete, grouts and mortars, and meets or exceeds the specification of ASTM C1240 and EN 13263: 2005.

Chemical Composition

ASTM C1240

EN 13263: 2005

GB/T 21236: 2007

Test results

SiO2

min. 88.0%

min. 88.0%

min. 88.0%

89.10%

Al2O3

-

max. 1.50%

-

-

Fe2O3

-

max. 2.00%

-

-

CaO+MgO

-

max. 2.00%

-

-

K2O+Na2O

-

max. 2.00%

-

-

C

-

-

max. 2.50%

1.00%

Cl

-

max. 0.30%

max. 0.20%

0.12%

pH

-

-

4.00 – 8.50

6.50

Loss on ignition

max. 6.00%

max. 4.00%

max. 4.00%

2.16%

Moisture content

max. 3.00%

-

max. 3.00%

1.10%

Physical Properties

ASTM C1240

EN 13263: 2005

GB/T 21236: 2007

Test results

Specific surface

min. 15.0m2/gram

15.0-35.0m2/gram

min. 15.0m2/gram

15.16m2/gram

Bulk density

-

-

550 – 700kgs/m3

642kgs/m3

Percent retained on 45μm sieve

max. 10%

-

max. 5.00%

1.12%

Pozzolanic activity index at 7 days

min. 105%

-

-

105.60%

Pozzolanic activity index at 28 days

-

min. 100%

min. 85%

-

Ratio of water demand

-

-

max. 125%

102.10%


Further information and technical advice

All information in this publication is in accordance with our present experience and knowledge. However, since we have no influence on the way in which our products are treated and used, we cannot take any responsibility in this respect. The user must assume responsibility himself for checking whether the products are suitable for the purpose and use proposed by him. All existing proprietary rights, laws and regulations shall be observed.