|
FORMAT
BOOKS
PACKAGES
EDITION
PUBLISHER
CONTENT TYPE
Act
Admin Code
Announcements
Bill
Book
CADD File
CAN
CEU
Charter
Checklist
City Code
Code
Commentary
Comprehensive Plan
Conference Paper
County Code
Course
DHS Documents
Document
Errata
Executive Regulation
Federal Guideline
Firm Content
Guideline
Handbook
Interpretation
Journal
Land Use and Development
Law
Legislative Rule
Local Amendment
Local Code
Local Document
Local Regulation
Local Standards
Manual
Model Code
Model Standard
Notice
Ordinance
Other
Paperback
PASS
Periodicals
PIN
Plan
Policy
Product
Product - Data Sheet
Program
Provisions
Requirements
Revisions
Rules & Regulations
Standards
State Amendment
State Code
State Manual
State Plan
State Standards
Statute
Study Guide
Supplement
Sustainability
Technical Bulletin
All
|
Description of 19/30367644 DC 2019This International Standard specifies a method for determining the constant-head water flow capacity within the plane of a geotextile or geotextile-related product, using boundary materials and test conditions of interest. A standard series of test conditions are proposed, involving soil confinement, low hydraulic gradients, seating times and an array of normal loads. NOTE 1 The results obtained under this test procedure may not compare with those obtained under ISO 12958 – Part 1, even if some of the test conditions are similar. NOTE 2 Many geosynthetic products can creep under constant load, i.e. see their thickness diminish over time, which may influence their in-plane water flow capacity. Although a seating time typically greater than the one used in ISO 12958-part 1 is used, this test does not cover all creep-related issues for drainage geocomposites. Assessment of long-term flow capacity may require further considerations. NOTE 3 This procedure may be useful to assess the effect of geotextile intrusion into the drainage core on the transmissivity of a drainage product, using soil from a particular project as a stress-distribution layer in contact with the geotextile. Note 4 There are other test methods which may be more suitable for the characterization of particular drainage products, such as ISO 18325 for Prefabricated Vertical Drains. It is the responsibility of the user to assess the limit of this test procedure and select the appropriate test method, and/or test conditions that adequately reflect the particular needs for his project. NOTE 5 In this test method, the performance of the product is approached considering soil confinement, service load and service hydraulic gradient, as well as primary creep. However, other field-related issues will affect material long-term performance, such as secondary or tertiary creep, chemical or biological clogging, chemical resistance and durability, installation, backfilling, etc. These issues are covered in separate standards and must be considered while designing with geosynthetics.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
GROUPS
|
|
MADCAD.com
by Compu-tecture, Inc.
|
Contact Us
3000 Connecticut Ave, NW
Suite 200
Washington, DC 20008
+1 800.798.9296
+1 202.265.1940
|
|
Partnerships
|