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This section is from the book "The Building Trades Pocketbook", by International Correspondence Schools. Also available from Amazon: Building Trades Pocketbook: a Handy Manual of reference on Building Construction.

Table VIII Strength Of Metals In Pounds Per Square Inch. Part 2

Table X. Average Ultimate Strength Of Masonry Materials

Material.	Compression. Lb. per Sq. In.	Tension. Lb. per Sq. In.	Modulus of Rupture.
Building Stone.
Bluestone..........................................	13,500	1,400	2,700
Granite, average................................	15,000	600	1,800
Connecticut...................................	12,000
New Hampshire.............................	15,000		1,500
Massachusetts...............................	16,000		1,800
New York......................................	15,000
Limestone, average .........................	7,000	1,000	1,500
Hudson River, N. Y.....................	17,000
Ohio................................................	12,000		1,500
Marble, Vermont.............................	8,000	700	1,200
Sandstone, average..........................	5,000	150	1,200
New Jersey ...................................	12,000		650
New York.............................	10,000		1,700
Ohio............................................	9,000	100	700
Slate..................................................	10,000	4,000	5,000
Stonework (strength of stone) .......	4/10	4/10	4/10
Brick.
Brick, light red............................	1,000	40
Good common................................	10,000	200	600
Best hard.....................................	12,000	400	800
Philadelphia pressed	6,000	200	600
Brickwork, common lime mortar	1,000	50
Good cement-and-lime mortar......	1,500	100
Best cement mortar.......................	2.000	300
Terra cotta ......................................	5,000
Terra-cotta work.......................	2,000
Cements, etc.
Cement, Rosendale, 1 mo. old.........	1,200	200	200
Portland, 1 mo. old......................	2,000	400	400
Rosendale, 1 yr. old	2,000	300	400
Portland, 1 vr. old.........................	3,000	500	800
Mortar, lime, 1 yr. old......................	400	50	100
Lime and Rosendale, 1 vr. old.......	600	75	200
Rosendale cement, 1 yr. old..........	1,000	125	300
Portland cement, 1 yr. old............	2,000	250	600
Concrete, Portland, 1 mo. old..........	1,000	200	100
Rosendale, 1 mo. old......................	500	100	50
Portland. 1 yr. old.........................	2.000	400	150
Rosendale, 1 yr. old......................	1,000	200	75

The values in the preceding table are ultimate, and from 1/10 to 1/30 of these values is used as the safe working strength of the materials.

The following table gives the safe working loads allowable in good practice for brickwork, masonry, and foundation soils:

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		Table VIII Strength Of Metals In Pounds Per Square Inch. Part 2

Table VIII Strength Of Metals In Pounds Per Square Inch. Part 2

Description

Table VIII Strength Of Metals In Pounds Per Square Inch. Part 2

Table X. Average Ultimate Strength Of Masonry Materials

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