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UDC 666 : 942 : 620.11 ISBN 974-606-402-9
THAI INDUSTRIAL STANDARD
. 15 16 2535
16
PORTLAND CEMENT
PART 16, STANDARD METHODS OF SAMPLING AND ACCEPTANCE OF
HYDRAULIC CEMENT
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6 10400
0 2202 3300
109 489 2535
. 15 16 2535
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(2)
8
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(3)
16 16 . 15 162514
88 145 23 2514
. 15 12532 1
. 15 22521 2
. 15 32519 3 150 75
. 15 42519 4
45 . 15 52519 5
. 15 62521 6 . 15 72521 7
. 15 82514 8
. 15 92518 9
. 15 102518 10
. 15 112521 11
. 15 122532 12
. 15 132521 13
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. 15 142520 14
. 15 152519 15
(). 15 162535 16
. 15 172516 17
. 15 182519 18
. 15 202521 20
. 15 212533 21
ASTM C 18388 Standard Practice for Sampling and the Amount of
Testing of HydraulicCement
15 .. 2511
(4)
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(5)
1790 ( .. 2535 )
.. 2511
16
16
16
. 15 162514 15 .. 2511
17 (.. 2514) .. 2511 16 14 .. 2514 16 . 15 12535
26 .. 2535
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1
. 15 162535
16 1.
1.1
2.
2.1
2.2 (grab sample)
10 2.3 (composite sample)
2.4 (test sample)
2.5 (normal testing) 1
22.6 (reduced testing) 2
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2
. 15 162535
1 ( 2.5 5.1)
1. 1 3
2. 1 4
3. 3.1
5 3.2
3.3
3.3.1 1 5 6
3.3.2
1 400 400 2
2 2 23 3 2
4 10 4 211 20 6 2
20 8 2
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3
. 15 162535
3.3.3 1 400 400 2
1 000 2 000
3.3.4 3.3.1 3.3.3
3.3.4.1 200 1 1
1 ( 3.3.4.1)
3.3.4.2 2 1 1 5
5
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4
. 15 162535
320
2
( 3.3.4.2)
3.3.4.3 (1)
5 5
(2)
1 100 100 2 5.1
3.4
4. 4.1 850
(ASTM 20) 20 25.4
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5
. 15 162535
5. 5.1
1 1 . 15 1
5.2 5.15.3 3.3.4.3(1) 5.4 3.3.4.3(2) 5.15.5 . 15 1 2 4
/5.6 1
1 1 1 1
5.7 5.7.1 (quality history)5.7.2 1
5.7.3 2 5.7.4 (C : critical limit) 6.1.2
5.8 6.1.1
5.9
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6
. 15 162535
6. 6.1 (control chart)
6.1.1 2 (2)
6.1.1.1 40 7
6.1.1.2
6.1.1.3 (range)
6.1.1.4 (r) 6.1.1.5
r 2.49(probability factor) d C d C d r C
SiO2 21.78 21.8 3 243 3 240
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7
. 15 162535
2 2 ( 6.1.1 6.1.2)
7 3
1 0.58 178.8
13 0.61 189.9
17 0.57 153.5
21 0.55 160.1
1 0.55 151.2
5 0.55 166.413 0.57 169.5
21 0.54 176.6
5 0.55 165.3
13 0.56 168.5
17 0.56 177.0
21 0.56 185.0
5 0.42 179.313 0.45 168.1
17 0.47 161.8
21 0.39 156.3
4 0.47 167.58 0.46 173.0
12 0.40 153.9
20 0.41 165.04 0.45 183.3
8 0.44 189.5
16 0.41 179.5
20 0.40 183.9
3 0.45 188.6
7 0.48 168.6
15 0.48 170.6
19 0.49 176.8
0.03
0.00
0.01
0.03
0.00
88
98
91
0.01
0.01
0.01
0.08
106
107
111
112
0.01
0.03
0.01 4.4
0.02
0.03
6.2
20.0
6.2
11.1
5.5
5.5
15.2
6.6
11.1
11.2
7.1
3.2
7.1
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. 15 162535
2 2 ()
r 0.017 7.492.49 r 0.042 33 18.65 0.60 0.042 = 0.558 133.4 18.7
= 152.13.267 r 0.055 5 24.47 0.056 24.5
6.1.2 (control chart of the range) r 3.267 () C 2 5 3
r, d 2 3 4
7 3
2 0.49 167.4
15 0.46 160.3
20 0.47 170.5
24 0.49 166.8
1 0.46 155.7
6 0.46 160.9
11 0.46 153.521 0.46 160.6
6 0.46 187.0
11 0.45 185.0
21 0.44 177.0
26 0.44 181.3
0.34
113
0.00
0.01
0.00
123
120
149.8
0.00
0.02
0.03 7.1
4.3
2.0
7.1
5.2
3.7
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3 ( 6.1.2)
4 ( 6.1.2)
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. 15 162535
6.2
6.3 2
7. 7.1
7.1.1 2
* (referee method) 1.
3
2. * 18 .15 18
