- March 4, 19 8 5
ICS/Penetron
International Ltd.
- 45 Research Way
- Suite 203
- East Setauket, NY 11733
Re: Information of Client
In
accordance with the request of Client, tests were made in the laboratory to
determine compressive strength of concrete is affected by treatment with
Penetron.
To make this determination, the following Portland cement
concrete mix was made in the laboratory and six (6) cylinders were cast. Three
(3) cylinders were treated with Penetron and the remaining three(3) cylinders
were untreated and used as reference specimens.
CONCRETE MIX
DESIGN
Materials per Cubic
Yard
(Aggregates S.S.D.)
CEMENT (sk)
6.0
CEMENT
(lb)
564
SAND
(lb)
1450
TRAP
ROCK (lb)
1860
GALS
OF WATER
39.9
SLUMP
(in)
4.5
W/C
RATIO (gal/sk)
6.65
PROCEDURE
USED:
After the initial set had taken place
approximately 2.5 lbs. per sq. yd. of Penetron was sprinkled onto the concrete
surface of 3 cylinders and worked into the top surface by means of an ordinary
wood float. When the concrete was 24 hours old the molds were removed and the
opposite ends of these cylinders were brushed to roughen the surface. Penetron
was mixed with water (2.0 Penetron by volume mixed with 0.8 water by volume) to
a slurry consistency and brushed onto the concrete surface. Twenty-four hours
later this surface was dampened and kept damp for a period of 48 hour. The three
treated cylinders and the three untreated cylinders were then stored under the
same conditions until tested at 28 days.
Results of the 28-Day
Compression Tests are as follows:
|
CYLINDER IDENT |
PLAIN UNTREATED (PSI) |
PENETRON TREATED (PSI) |
|
1 |
4864 |
4917 |
| 2 |
4917 |
5077 |
| 3 |
4652 |
5236 |
|
AVERAGE OF 3 CYLINDERS |
4811 |
5077 |
TEST
SUMMARY:
The use of Penetron resulted in a strength gain of
approximately 5.52% over the untreated concrete.
|
