SAMPLING AND TESTING HIGHWAY MATERIALS. 
41 
Laboratory Record. 
Appearance of brick- 
Brick" from. 
Address 
Sampled by 
Type— _1 
I'.->T.-__ 
ABSORPTION TE-T. 
Sum 
Average. 
le Xo. 
Absorption, 
per cent 
B-A 
^— xioo 
• -n-^ r 4\ Saturated 
|DryU).j (jB)> 
Differ- 
ence 
(B-A). 
Remarks. 
1.. 
_• 


4 
COMPRESSION TESTS. 
( Half bricks tested on edge.) 
Dimensions of half brick. 
Load. 
Com- 
per 
square 
inch 
(i). 
(a). 
Sample No. 
Depth 
Length 
(0. 
Area (a) 
a=dl. 
At first 
crack. 
At fail- 
ure (L). 
Remarks. 
1 
Inches. 
Inches. 
Square 
Inches. 
Pounds. 
Pounds. 
Pounds. 
Sum. . .' 
Average 
TRANSVERSE TE-T. 
Dimensions. 
Load 
Modulus 
of rupture 
SWI 
K -2bd* 
le No. 
Width 
(&). 
Depth Span 
(d). (/). 
Remarks. 
Inches. 
Inches. Inches. 
Pound. 
3.... 
4 

Sum 
Average 
Average absorption, 
percent. 
A verage compressive 
strength, pounds per square 
inch. 
Average modulus of 
rupture. 
Observers: 
. 
