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Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910: Tests of Creosoted Timber, Paper No. 1168 — John Shaqi

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910: Tests of Creosoted Timber, Paper No. 1168Gregory, W. B. (William Benjamin)

Science

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910: Tests of Creosoted Timber, Paper No. 1168

Name: Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910: Tests of Creosoted Timber, Paper No. 1168
Author: Gregory, W. B. (William Benjamin)

Gregory, W. B. (William Benjamin)

Civil engineering -- Periodicals; Creosote; Wood -- Preservation; Wood -- Testing

|   |         |0.35|35.0|21.9|  956| 2,180|  357|0.12|   |quality.    |
+---+---------+----+----+----+-----+------+-----+----+---+------------+

LONG-LEAF PINE.

+---+---------+----+----+----+-----+------+-----+----+---+------------+
|   |         |0.58|45.6|36.2|3,800| 7,160|1,560|0.53|   |            |
| 6 |South    |0.76|60.0|47.5|4,970|10,020|2,010|0.78| 9 |            |
|   |Carolina.|0.50|39.4|31.2|2,220| 5,450|1,190|0.21|   |            |
+---+---------+----+----+----+-----+------+-----+----+---+------------+
|   |         |0.69|54.7|42.9|5,581| 8,384|1,820| -- |   |Excellent   |
| 7 |Georgia. |0.79| -- |49.4|9,600|11,410|2,920| -- | 6 |merchantable|
|   |         |0.50| -- |31.4|3,547| 4,836|1,167| -- |   |grade.      |
+=====================================================================+


TABLE 3.--LOBLOLLY PINE.--BENDING TESTS ON BEAMS SEASONED UNDER
DIFFERENT CONDITIONS.

(8 by 16-in. section; 13-1/2 to 15-ft. span.)

Columns in table:

A. Number of tests.
B. Fiber stress at elastic limit, in pounds per square inch.
C. Modulus of rupture, in pounds per square inch.
D. Longitudinal shear at maximum load, in pounds per square inch.
E. Modulus of elasticity, in thousands of pounds per square inch.
F. Percentage of moisture.
G. Rings per inch.
H. Weight per cubic foot, oven dry, in pounds.
I. Condition of seasoning.

====================================================================
        | A |  B  |  C  |   D   |   E |  F |  G |  H |      I
--------+---+-----+-----+-------+-----+----+----+----+--------------
Average |   |3,580|5,480|364_{4}|1,780|23.2| 9.4|33.7| Air dry,
Maximum | 4 |4,070|6,600|440    |1,987|24.3|11.5|34.5| 3-1/2 months
Minimum |   |3,090|5,000|327    |1,530|21.5| 8.0|32.5| in the open.
--------+---+-----+-----+-------+-----+----+----+----+--------------
Average |   |4,512|5,060|338_{3}|1,685|20  | 7.7|33.9| Kiln dry,
Maximum | 5 |5,840|7,320|488    |1,790|22  |10.2|38.0| 6 days.
Minimum |   |3,180|2,150|143    |1,410|18  | 4.7|27.7|
--------+---+-----+-----+-------+-----+----+----+----+--------------
Average |   |4,331|6,721|493_{9}|1,688| -- | 7.7| -- | Air dry, 21
Maximum |12 |4,990|8,560|620    |2,002| -- | 9.5| -- | months under
Minimum |   |3,110|5,160|380    |1,398| -- | 5.5| -- | shelter.
====================================================================

NOTE.--Figures written as subscripts to the figures for
longitudinal shear indicate the number of sticks failing in that manner.

[Illustration: PLATE II.--SIDE VIEWS OF TESTED TIMBERS.]


TABLE 4.--LOAD AND DEFLECTION LOG. BEAM I.

Columns in table:

A: Load, in pounds.
B: Reading.
C: Total deflection.
D: Mean total deflection.

Date: February 26th, 1909.               Date: February 24th, 1909.
_l_ = 12 ft.;                            _l_ = 12 ft.;
_b_ (mean) = 6-9/32 in.;                 _b_ (mean) = 6 in.;
_h_ (mean) = 15-15/16 in.;               _h_ (mean) = 15.69 in.;
_c_ = 7.97 in.                           _c_ = 7.84 in.
Time = 1 hour.

Public-domain text, read in full here on John Shaqi.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910: Tests of Creosoted Timber, Paper No. 1168

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