Allowable Compressive Stress For Granite

Granite 55 1 51 0 0 69 indiana limestone 6 7 42 0 0 10.

Allowable compressive stress for granite. So compressive strength is the highest load per unit area borne by the stone without giving in. For the dry condition the stone specimens are dried in an oven at 60 c 2 c 140 f 2 f for at least 48 hours or. A higher compressive strength between1 800 psi 12 45 mpa and 19 000 psi 131 mpa means the stone can endure an upper crushing load. The characteristic compressive strength of stone masonry with bed joints 10 mm thick or less and in mortar designation iii or stronger may be taken as 0 35 times the mean compressive strength of the natural stone masonry units or representative cubes when prepared in accordance with bs en 771 6 and tested in accordance with bs en 772 1.

Since the strength may vary when the stone is wet the strength tests i e. Compressive strength flexural strength modulus of rupture are sometimes performed using wet stone specimens. 8 1 compressive strength the strength of a material may be broadly defined as the ability of the material to resist imposed forces. 8 10 8 4 theory of strength.

The allowable bearing pressure for supporting soil and rock at or near the surface shall not exceed the values specified in table 1804 1 unless data to substantiate the use of a higher value are developed and contained in the engineer s geotechnical report and the commissioner approves such value allowable bearing pressure shall be considered to be the pressure at the base of a foundation in.