ASTM D7180 - D 7180M - 05 (2025) 膨胀聚苯乙烯（EPS）Geofoam在岩土工程中的使用标准指南

VIP免费

标准小能手 2025-12-18 13 190.86KB 3 页 18星币

侵权投诉

Designation: D7180/D7180M −05 (Reapproved 2025)

Standard Guide for

Use of Expanded Polystyrene (EPS) Geofoam in

Geotechnical Projects

This standard is issued under the ﬁxed designation D7180/D7180M; the number immediately following the designation indicates the

year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last

reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 This guide covers some of the basic considerations for

the use of expanded polystyrene (EPS) geofoam in geotechni-

cal projects.

1.2 This guide offers a collection of information and does

not recommend a course of action. This guide cannot replace

education or experience and should be used in conjunction with

professional judgment. Not all aspects of this guide may be

applicable in all circumstances.

1.3 This guide is not intended to represent or replace the

standard of care by which the adequacy of a given professional

service must be judged, nor should this guide be applied

without consideration of a project’s many unique aspects.

1.4 The word “standard” in the title of this guide means only

that this guide has been approved through the ASTM Interna-

tional consensus process.

1.5 The values stated in either SI units or inch-pound units

are to be regarded separately as standard. The values stated in

each system are not necessarily exact equivalents; therefore, to

ensure conformance with the standard, each system shall be

used independently of the other, and values from the two

systems shall not be combined.

1.6 This standard does not purport to address all of the

safety concerns, if any, associated with its use. It is the

responsibility of the user of this standard to establish appro-

priate safety, health, and environmental practices and deter-

mine the applicability of regulatory limitations prior to use.

1.7 This international standard was developed in accor-

dance with internationally recognized principles on standard-

ization established in the Decision on Principles for the

Development of International Standards, Guides and Recom-

mendations issued by the World Trade Organization Technical

Barriers to Trade (TBT) Committee.

2. Referenced Documents

2.1 ASTM Standards:

D4439 Terminology for Geosynthetics

D6817/D6817M Speciﬁcation for Rigid Cellular Polysty-

rene Geofoam

3. Terminology

3.1 Deﬁnitions—Terms used in this guide are deﬁned in

Terminology D4439.

3.1.1 geofoam, n—block or planar rigid cellular foam poly-

meric material used in geotechnical engineering applications.

3.2 Deﬁnitions of Terms Speciﬁc to This Standard:

3.2.1 expanded polystyrene, n—type of foamed plastic

formed by the expansion of polystyrene resin beads in a

molding process.

3.3 Acronyms:

3.3.1 EPS, n—expanded polystyrene.

3.3.2 EPS geofoam, n—rigid cellular polystyrene geofoam

manufactured from EPS.

4. Summary of Guide

4.1 EPS geofoam is commonly used in geotechnical appli-

cations when an extremely lightweight material is required.

This guide covers some of the considerations that must be

evaluated in the design of these projects.

5. Signiﬁcance and Use

5.1 This guide informs the user of design considerations in

the use of EPS geofoam which assist in the determination of

the appropriate EPS geofoam for geotechnical applications.

5.2 This guide does not preclude the judgment and practice

of those competent in geotechnical design.

6. Design Principles

6.1 Design Considerations:

6.1.1 Compressive Properties:

This guide is under the jurisdiction of ASTM Committee D35 on Geosynthetics

and is the direct responsibility of Subcommittee D35.06 on Geosynthetic Speciﬁ-

cations.

Current edition approved April 1, 2025. Published April 2025. Originally

approved in 2005. Last previous edition approved in 2021 as D7180/D7180M – 05

(2021). DOI: 10.1520/D7180_D7180M-05R25.

For referenced ASTM standards, visit the ASTM website, www.astm.org, or

contact ASTM Customer Service at www.astm.org/contact. For Annual Book of

ASTM Standards volume information, refer to the standard’s Document Summary

page on the ASTM website.

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the

Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

6.1.1.1 The compressive resistance of EPS geofoam is

covered by Speciﬁcation D6817/D6817M. The compressive

resistance for geofoam is speciﬁed in Speciﬁcation D6817/

D6817M and includes the compressive behavior of EPS

geofoam at 1, 5, and 10 % strain.

6.1.1.2 A typical limit for many EPS geofoam projects is to

consider the compressive resistance at 1 % strain. The com-

pressive behavior at 1 % strain is within the elastic region of

EPS geofoam and provides acceptable short-term deﬂections in

addition to limiting long-term creep deformation.

6.1.1.3 Creep deformations must be accounted for when

long-term loads exceed the compressive resistance at 1 %

strain.

6.1.1.4 At a compressive resistance of 5 % strain, EPS

geofoam is beyond the elastic behavior region and is in the

plastic behavior region.

6.1.2 Compressive Resistance Testing—The compressive re-

sistance described in 6.1.1 is determined from the uniform

loading of 50 mm [2 in.] cubes at a prescribed loading rate.

6.1.3 Load Distribution Requirements—In applications with

localized loading exceeding the compressive resistance at 1 %

strain, a number of strategies can be used to reduce the

effective load on the EPS geofoam. A common method is the

use of a concrete slab with suitable reinforcement to distribute

the load to levels below the compressive resistance at 1 %

strain. A sufficient depth of cover material may also be used to

reduce the project loads below the compressive resistance at

1 % strain.

6.1.4 Subgrade Requirements—EPS geofoam is usually in-

stalled on a relatively planar surface. Subgrade preparation

requirements must be speciﬁed by the designer.

6.1.5 Layout—EPS geofoam is provided in block form. The

layout for the materials is often accomplished through the use

of multiple layer design. Alternating layers of EPS geofoam are

often staggered to avoid differential block-to-block movement.

EPS geofoam blocks vary in size for each manufacturer. EPS

geofoam block can be supplied as manufactured or trimmed to

speciﬁed dimensions. Consult the EPS geofoam supplier to

determine the dimension of EPS geofoam to optimize block

placement and for fabrication options. Multiple EPS geofoam

types can be sourced for use in a layered design to improve

project costs.

6.1.6 Tolerances—Dimensional tolerances are included in

Speciﬁcation D6817/D6817M.

6.1.7 Buoyancy—EPS is a lightweight material with a

closed cell structure that does not allow for signiﬁcant water

absorption. The buoyancy must be fully accounted for in

designs that include the use of EPS geofoam in submerged

applications. This should include the potential for 100-year

ﬂood events. Common methods to counteract buoyancy are the

use of sufficient overburden or mechanical restraint.

6.1.8 Thermal Insulation Properties—The thermal insulat-

ing properties of EPS must be considered in areas subject to

freezing temperatures. In these areas, a sufficient cover of

traditional ﬁll material must be provided above the EPS

geofoam to reduce differential surface icing between EPS

geofoam and adjacent traditional ﬁll locations.

6.1.9 Ultraviolet Light Exposure—EPS geofoam will dis-

color and yellow when exposed for extended time periods. EPS

geofoam expected to be exposed for long periods of time

should be covered with an opaque material.

6.1.10 Flammability—EPS geofoam is a combustible mate-

rial. EPS geofoam should be kept away from open ﬂames,

welding, sparks, and other possible sources of ignition.

6.1.11 Exposure to Hydrocarbons—EPS geofoam is subject

to degradation when exposed directly to or to the vapors of

many hydrocarbons such as gasoline and diesel fuel. EPS

geofoam should be protected from possible exposure to these

materials during construction and throughout the design life of

the project. This could include possible hydrocarbon soil

contaminants that may be present before construction. EPS

geofoam can be protected from hydrocarbons by the use of a

hydrocarbon-resistant geomembrane or through other physical

barriers.

6.2 Quality Control:

6.2.1 Certiﬁcation—Project speciﬁcations shall include

third-party certiﬁcation to Speciﬁcation D6817/D6817M re-

quirements or as required by project needs.

6.2.2 Field Sampling—Field sampling shall be speciﬁed to

ensure ongoing dimensional tolerances and density. A mini-

mum frequency of density checks at the site shall be speciﬁed

to coordinate with material shipments. Third-party testing of

Speciﬁcation D6817/D6817M compressive resistance proper-

ties before project initiation and at regular intervals throughout

the project is also recommended.

7. Keywords

7.1 EPS; EPS geofoams; expanded polystyrenes; geofoams;

rigid cellular polystyrenes

D7180/D7180M − 05 (2025)

BIBLIOGRAPHY

The references listed below provide additional information on the use of EPS geofoam in geotechnical projects.

Note—These referenced documents were developed before Speciﬁcation D6817/D6817M and therefore may include EPS geofoam property

values in conﬂict with Speciﬁcation D6817/D6817M. Speciﬁcation D6817/D6817M, as developed through the ASTM International consen-

sus process, is the recommended standard speciﬁcation for EPS geofoam.

(1) Geofoam Stabilization of an Embankment Slope—A Case Study of

Route 23A in the Town of Jewett, Greene County, Geotechnical

Engineering Bureau, New York Department of Transportation,

Albany, NY, 1998.

(2) Horvath, J. S., Ph.D., P.E., Geofoam Geosynthetic, Horvath

Engineering, P.C., Scarsdale, NY, 1995.

(3) NCHRP Report 529, Guideline and Recommended Standard for

Geofoam Applications in Highway Embankments, Transportation

Research Board of the National Academies, Washington, DC, 2004.

(4) Negussey, Dawit, Slope Stabilization with Geofoam, Geofoam Re-

search Center, Syracuse University, Syracuse, NY, 2002.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned

in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk

of infringement of such rights, are entirely their own responsibility.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ﬁve years and

if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards

and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the

responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should

make your views known to the ASTM Committee on Standards, at the address shown below.

This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,

United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above

address or at 610-832-9585 (phone), or through the ASTM website (www.astm.org/contact). Permission rights to photocopy the

standard may also be secured from the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600;

http://www.copyright.com/

D7180/D7180M − 05 (2025)

文档加载中……请稍候！
如果长时间未打开，您也可以点击刷新试试。

下载文档到电脑，查找使用更方便

亲，本站95%以上的标准规范都面向会员免费，办理VIP会员下载更省钱，平均每篇不到2元

立即下载 VIP免费下载

已全部加载

标签： #工程 #标准指南 #乙烯

摘要：

本指南详细介绍了ASTM D7180 - D 7180M - 05 (2025)标准中关于膨胀聚苯乙烯（EPS）Geofoam在岩土工程中的应用规范，包括材料性能要求、设计原则、安装方法及质量控制措施。作为行业权威参考，该指南为工程师和承包商提供了使用EPS Geofoam作为轻质填土、地基隔热或缓震层的系统性指导，旨在提升岩土结构稳定性并降低长期沉降风险。内容涵盖材料密度、压缩强度、耐久性测试标准，以及现场施工中的堆叠、排水与防护要点，适用于道路建设、桥台回填及软土基础加固等场景。遵循本指南可

展开>> 收起<<

ASTM D7180 - D 7180M - 05 (2025) 膨胀聚苯乙烯（EPS）Geofoam在岩土工程中的使用标准指南.pdf

共3页,预览3页

还剩页未读，继续阅读

声明：本文档系会员上传，若文档所含内容侵犯了您的版权或隐私，请立即通知，我们立即给予侵权申诉删除！

ASTM D7180 - D 7180M - 05 (2025) 膨胀聚苯乙烯（EPS）Geofoam在岩土工程中的使用标准指南

相关推荐

开通VIP享超值会员特权

相关内容

热门标签

举报选择: