1659-4266
1659-4266
S1659-42662017000100023
El Salvador
Costa Rica
00
06
2017
00
06
2017
9
1
23
33
[
ASTM D3385-94
1994
]
[
1959
]
[
2005
]
[
1999
Fourt
5-10
]
[
2001
3rd
]
[
2001
31-6
]
[
1997
33
6
6
1375-82
]
[
1911
4
1-24
]
[
1985
]
[
1939
20
693-711
]
[
1940
5
399-417
]
[
1994
3
253-96
]
[
1932
61
A
A
17-21
]
[
La Gaceta 243
2010
243
243
35
]
[
1981
]
[
1994
3
133-40
]
[
1960
12
311-63
]
[
(200
6
76
36-44
]
[
1986
6
1
1
84-95
]
[
Topp
2002
797-878
]
[
2006
34
13-30
]
[
1999
35
]
[
2008
]
[
1980
18
139-48
]
[
1994
Primera
]
[
Swan
1993
57
917-23
]
[
1995
8
153-60
]