Concrete should be old enough, if it is newly placed concrete then it needs to be 21-28 days old and to have reached its design strength. Concrete should have attained a minimum compressive strength of 21 MPa, higher strength concrete is recommended for optimum performance of grout. All surfaces should be dry, clean, and free from standing water, grease, curing compounds, mold oils, all loosely adhered aggregates and cement particles, etc. Chip the concrete surface so aggregates are exposed to ensure all laitance and weak particles are removed. Alternatively use a spray on surface retarder when placing concrete. The exposed aggregate amplitude should not be greater than 10-15 mm. Chamfer the edges of the concrete 45 degrees to 50 mm. width to avoid sharp corners which helps to reduce the potential for cracking. Shade the foundation from direct sunlight for at least 24 hours before grouting and 48 hours after grouting.
FIELD OF APPLICATION
Under-grouting and bedding of base plates, bridge bearings, machine bases, seat base-plates for light and heavy machinery including heavy impact and vibratory machinery, reciprocating engines, compressors, pumps, presses, etc.
(According to ASTM C 579) Curing time +23°C
1days ~ 65 MPa
3 days ~ 95 MPa
7 days ~ 100 MPa
(According to ASTM C 580) ~ 30 MPa
(According to ASTM C 307) ~ 14 Mpa
Bond strength > 3MPa (Concrete failure)
(According to ASTM C 1181) ~4.0 MPa (600 psi/31500 N)
~2.5 MPa (400 psi/21000 N)
(According to ASTM C 531) <0.05 %
Thermal Expansion Coefficient
(According to ASTM C 531) ~ 2.0 ×10-5 mm/mm/ ̊ c (-30 ̊C - +30 ̊C)
~ 3.5 ×10-5 mm/mm/ ̊ c (+24 ̊C - +100 ̊C)
Water absorption Coefficient W
(According to ASTM C 413) ~ 0.05 % (7 days)
Thermal stability (HDT)
(According to ISO 75)
Before mixing ensure all the components are cool, shaded and dry. If not preconditioned store all components below 25° C for 24 hours before using.
The temperature of grout, baseplate and foundation are more important than the air temperature because they are directly related to the flow of grout.
Add component A &B in a mixing vessel and mix under slow speed (RPM 400) for approximate 1 minute. Then add component C and continue mixing until a flowing uniform grout is achieved.
Avoid excessive mixing which will result in reduction of working time and heat generation.
35 kgs set.
The shelf life is 12 months if unopened, stored free from frost, moisture and direct sunlight.
The Abadgaran International Technical Service Department is available to assist you in the correct use of our products and its resources are at your disposal entirely without obligation