A. As general
- stone should be cleaned with water or with light detergent.
B. Keep stone
work as clean as possible as work progresses. Upon completion, clean stone
thoroughly with water or detergent and water and fiber brushes. Thoroughly
rinse when complete with clean water. Do not use acids or wire brushes.
C. Special consideration and protection shall be
provided when brickwork is cleaned above the limestone. Strong acid compounds
used for cleaning brick will burn and discolor the limestone.
Jerusalem
Limestone according to the ASTM
High
Density
STANDARD VALUE
STANDARD VALUE
STANDARD VALUE
TEST PROCEDURE
PROPERTY
Jerusalem Limestone
Low
Density
Medium
Density
High
Density
11,490
1,800
psi minimum
4,000
psi minimum
8,000
psi minimum
ASTM
C170
Ultimate
compressive strength of dry specimens
2,000
400
psi minimum
500
psi minimum
1000
psi minimum
ASTM
C99
Modulus
of rupture of dry specimens
0.80%
12
% maximum
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