AASHTO R 51-13

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Standard Practice for

Compost for Erosion/Sediment

Control (Filter Berms and

Filter Socks)

AASHTO Designation: R 51-131

American Association of State Highway and Transportation Officials

444 North Capitol Street N.W., Suite 249

Washington, D.C. 20001

TS-1a R 51-1 AASHTO

Standard Practice for

Compost for Erosion/Sediment Control

(Filter Berms and Filter Socks)

AASHTO Designation: R 51-131

1. SCOPE

1.1. This specification covers compost produced from various organic by-products for use as filter

berm media for erosion/sediment control. The technique described in this specification is primarily

used for temporary erosion/sediment control applications where perimeter controls are required or

necessary.

1.2. This technique is appropriate for slopes up to a 2:1 grade (horizontal distance:vertical distance)

and on level surfaces and should be used only in areas that have sheet flow drainage patterns (not

areas that receive concentrated flows).

1.3. The filter sock technology is appropriate for areas outlined in Section 1.2 as well as areas of high

sheet flow erosion, around inlets, and in other disturbed areas of construction sites requiring

sediment control. Unlike filter berms, the filter sock technology may be used in areas that have

concentrated flow drainage patterns, up to 10 gal per minute per linear foot of filter sock.

2. REFERENCED DOCUMENTS

2.1. ASTM Standard:

 D2977, Standard Practice for Particle Size Range of Peat Materials for Horticultural Purposes

2.2. U.S. EPA Test Method:

 U.S. EPA, Test Methods for Evaluating Solid Waste, Physical/Chemical Methods, SW-846,

3rd Edition

2.3. TMECC Sampling and Test Method:

 Test Methods for the Examination of Composting and Compost (TMECC), jointly published

by the USDA and USCC (2002, publishing as a part of the USDA National Resource

Conservation Technical Bulletin Series)

2.4. Other Standards:

 U.S. Composting Council Seal of Testing Assurance Program documents

 Development of Landscape Architecture Specifications for Compost Utilization, The U.S.

Composting Council and the Clean Washington Center, 1997

TS-1a R 51-2 AASHTO

3. GENERAL DESCRIPTION

3.1. Compost is the product resulting from the controlled biological decomposition of organic material,

occurring under aerobic conditions, which has been sanitized through the generation of heat and

stabilized to the point that it is appropriate for its particular application. Active composting is

typically characterized by a high-temperature phase that sanitizes the product and allows a high

rate of decomposition, followed by a lower-temperature phase that allows the product to stabilize

while still decomposing at a slower rate. Compost should possess no objectionable odors or

substances toxic to plants and shall not resemble the raw material from which it was derived.

Compost contains plant nutrients but is typically not characterized as a fertilizer.

3.2. Compost may be derived from a variety of feedstocks, including agricultural, forestry, food, or

industrial residuals; biosolids (treated sewage sludge); leaf and yard trimmings; manure; tree

wood; or source-separated or mixed solid waste.

3.3. Proper thermophilic composting, meeting the U.S. Environmental Protection Agency’s definition

for a “process to further reduce pathogens” (PFRP), will effectively reduce populations of human

and plant pathogens, as well as destroy noxious weed seeds and propagules.

3.4. Compost is typically characterized as a finely screened and stabilized product that is used as a soil

amendment. However, most composts also contain a wood-based fraction (e.g., bark, ground

brush and tree wood, wood chips, etc.) that is typically removed before use as a soil amendment.

This coarser, woody fraction of compost plays an important role when compost is used in erosion

and sediment control. It is even possible to add fresh, ground bark or composted, properly sized

wood-based materials to a compost product, as necessary, to improve its efficacy in this

application.

3.5. Compost products acceptable for this application must meet the chemical, physical, and biological

parameters outlined in Section 4.

4. CHEMICAL, PHYSICAL, AND BIOLOGICAL PARAMETERS

4.1. Compost products specified for use in this application must meet the criteria specified in Table 1.

The products’ parameters will vary based on whether vegetation will be established on the filter

berm or the compost will be self-contained in a filter sock.

4.2. Only compost products that meet all applicable state and federal regulations pertaining to their

production and distribution may be used in this application. Approved compost products must

meet related state and federal chemical contaminant (e.g., heavy metals, pesticides, etc.) and

pathogen limits pertaining to the feedstocks (source materials) in which they were derived.

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摘要：

AASHTO R 51-13标准规范详细规定了热拌沥青混合料（HMA）试件在实验室中进行压缩试验的标准实践方法。该标准由美国国家公路与运输官员协会（AASHTO）发布，适用于评估沥青混合料的抗压强度与变形特性，为道路设计与质量控制提供关键数据支持。内容涵盖试件制备、压实流程、养护条件、加载速率及数据记录等全流程技术要求，旨在确保试验结果的统一性与可比性。本规范广泛应用于公路建设与材料检测领域，对于提升路面耐久性与施工规范化具有重要意义。

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