|
Versabind is a hydraulic agglomerate with a calcium sulphate base, having a
short setting time and fine grain. Its properties resemble those of Portland Cement.
|
Versabind costs less than Portland Cement and its price is highly competitive
regarding hydrated lime. It can be substituted for both, in applications in which price or
availability limit the use of said materials.
Physical and chemical characteristics:
|
Chemical properties
|
Method
|
Versabind
|
|
SiO
2 (%)
|
|
8.70
|
|
Al
2O
3 (%)
|
|
1.95
|
|
Fe
2O
3
|
|
1.20
|
|
CaO
|
ASTM C-114
|
49.50
|
|
MgO
|
|
0.70
|
|
SO
3
|
|
35.3
|
|
Alkalis such as Na
2O (%)
|
|
0.30
|
|
P.P.I.
|
|
0.87
|
|
Physical properties
|
Method
|
Versabind
|
|
Amount sifted when using a No 325 (%) mesh
|
ASTM C-430
|
99.0
|
|
Density gr/cm
3
|
ASTM C-188
|
3.0
|
|
Blaine (cm
2/gr)
|
ASTM C-204
|
7750
|
|
Initial setting (minutes)
|
ASTM C-191
|
22
|
|
Final setting (minutes)
|
ASTM C-191
|
46
|
|
Mortar expansion 14 days (%)
|
ASTM C-1038
|
0.04
|
Resistance to compression
24 hours (kg/cm
2)
|
ASTM C-109
|
100
|
Resistance to compression
3 days (kg/cm
2)
|
ASTM C-109
|
164
|
Resistance to compression
7 days (kg/cm
2)
|
ASTM C-109
|
200
|
Resistance to compression
28 days
|
ASTM C-109
|
252
|
For better results it is recommended to dose Versabind regarding weight.
In concrete pourings, carefully cure and/or cover with plastic sheets in order to avoid
cracks due to dryness caused by a quick evaporation is also recommended.
Versabind is a cementing material. It
is recommended to store it in a closed, dry place.
Versabind can be used as an agglomerate for ground stabilization, to manufacture
light duty concretes, to produce masonry mortars and self-levelling floors (in conjunction with
additives). It is also used as an anti-stripping additive in asphalt mixes, substituting hydrated
lime.
