185 (56)
Second Experiment for Amount of Water,
No. 12. One part good shell lime to 2 parts red earth very little
water, on No. 2 machine
No. 13. Same mixture as 12, but with the usual quantity of water,
tested by L. & O. method
Experiment for Variation by Reason of Testing Stale Mortar. No. 14. One part lime to 2 parts red earth put into moulds at once. No. 15. Same mixture put into moulds after three hours
Same but with Different Lime and Earth,
No. 16. Mortar put into moulds at once...
No. 17. Same after three hours
Average of three briquettes broken by L. & O. method.
45.5 lbs.
17
lbs.
8
lbs.
8 lbs.
17 lbs.
18 lbs.
These two experiments show that very little effect is produced in 3 hours, the usual time elapsing between taking the sumple and making the briquette. The sample was kept in the sealed tin while waiting.
Experiments with Standard Red Earth and Various Limes.
All briquettes were tested 14 days after making. Line was taken from K. M. L. 88, supplied by Lam Woo.
Earth and Lime used in the tests were passed through a sieve of 40 meshes to the inch. The mixing was thorough and done with as little water as possible.
The briquettes were taken out of the moulds as soon as they were made and dried as before described.
Several briquettes of earth and lime made for this experiment were left in the moulds for 15 hours, these were found to be cracked in the centre when taken out and could not be suspended in the clips..
39
1
40
1
41
42
43
44
45
16
47
48
NINININHA
2
2
00 HL GO HA 00 IN CA
Briquette No.
Parts. Air slaked coral
or shell lime.
Parts. Air slaked stone
lime.
Parts. Unslaked stone
lime..
Parts. Standard red earth.
Parts. Cleán sharp sand.
Days in air.
Days in water.
Broke at lbs. per sq. inch L. & O. method.
Average.
67, 69, 74 15, 18, 19
70
14
19, 23, 21
21
7, 8, 9
8
98,118,126
114
Sy Kung
40, 42, 47
43
Shell Lime.
58, 59, 66
61
1
15, 19
17
21, 24, 27
24
1
0, 0, 0
0
49
1
14
0
이
50
14
51
52
1
53
1
13 N
2
14
14
པ་་་
36, 35
37
78, 76, 78, 90
80.5
Heung Shan
14
36, 66 0
Shell Lime.
61
54
114
23, 24, 26
55
14
0
24.3 0
57
1
58
59
60
61
CO DO IN CO 19
14
78, 81, 89
82.6
14
51, 56, 58
55
Canton
,14
41,
45
43
Stone Lime.
13
33, 35, 42
36,6!
13
27, 28, 29
28
62
13
22, 24
23
63
13
10, 12
11
61
13
8, 9, 7
8
3388
65
14
17, 21, 21
19.6
66
1
14
13, 14, 18
15
67
14
0
0
68
1
14
0