backfilling and compaction meaning

What is Backfill Definition? Compaction of Soil in ...

Earth back-filling and - Compaction In Civil Engineering construction, we should understand properly the meaning of back-filling, which actually is the process of replacing the soil that is removed during building construction in order to strengthen and to give stability to the foundation structure.

Backfilling in Foundation : Types and Procedure

In construction, backfilling is the process of replacing or reusing the soil that is removed during building construction to strengthen and support a structure’s foundation or any other structural member.

Backfilling Trenches and Other Excavations

Backfilling is the process of putting the soil back into a trench or foundation once excavation, and the related work has been completed. The backfill process requires skills and heavy equipment as well as knowledge of the specifications, contract requirements, and soil conditions.

Backfill | Meaning of Backfill by Lexico

‘Compaction of backfill materials is normally carried out by mechanical means, to achieve a specified percentage of compactivity.’ ‘Two versions of this compaction tool are available: a smooth drum for sand, gravel, pea rock, and asphalt patching and a …

Method Statement for Excavation Compaction and …

Jul 30, 2018 · Backfill material shall conform to relevant project specifications. Backfilling will proceed symmetrically about the structure, whenever possible to do so. The sides will not be backfilled until the specified coatings are applied and fully cured on the surface. The water for the compaction will be added uniformly.

What Is Backfill in Construction? | Reference

Backfilling requires compacting layers of filler in 12-inch intervals until the material is even with the ground surrounding it. Wollam Construction advises that the foundation be sealed and the local building codes verified before beginning the backfill. Upon completion, sod or grass may be planted to blend with surrounding areas.

Difference between grading and backfilling - Earthwork ...

Dec 27, 2009 · The spec calls for 95% compaction everywhere with a requirment that the backfilling happen in lifts of 15cm(6 in). How can you differentuate grading fill work from compaction work? If the contours require 1 meter of fill at a particular location, isn't the contractor required to place this material and compact it in 15cm lifts?

I believe backfilling would refer to having to excavate for lets say a pipe installation and then having to back fill that excavation to bring to p...The definition should be found within the job specifications or in the standards being used for the project (FP-92, State DOT, etc.).your specs should have specifically stated the requirements for fill and for backfill. However, I think your contractor is trying to pull a fast on...1I also think the contractor is trying to play with words to get some extra payment. Grading to level is basically cut, fill and compact. Backfillin...1The contract calls for the contractor completing the grading portion of his work and then he will be given a new contract to come back later to per...Backfilling unless, as Hoigie pointed out, is defined elswhere, I would say was filling soil na hole excavated for this project. This agrees with S...you may have missed something in the plans & specs, however it also sounds like you have a fishy contractor. Any contractor worth two cents knows t...Post a pdf of the specification for a read.I have taken your advice and uploaded a collection I had put together of all references to grading and compaction in the SOW. There is no specific...Here is my take on the definition between backfill and fill: Backfill: Material used to refill an excavation. As in placing 'back' the fill. Thi...

Trench Compaction: Backfilling Methods – Tomahawk Power

When is comes to backfilling, there are several methods in the construction industry to achieve the same results. Depending on the requirements for a specific project, trench backfilling allows for different options for filling areas. The most common techniques in the industry include jetting, filling, dumping, and compaction.

6 TYPES OF BACKFILL MATERIALS USED IN CONSTRUCTION ...

Coarse-grained soils. Coarse-grained soils include gravelly and sandy soils and range from clayey …

Backfill - definition of backfill by The Free Dictionary

Define backfill. backfill synonyms, backfill pronunciation, backfill translation, English dictionary definition of backfill. n. Material used to refill an excavated area. tr.v. back·filled , back·fill·ing , back·fills 1. To refill with such material. 2. To fill . vb to refill an...

Soil Compaction Handbook

compaction force: static and vibratory. Static force is simply the deadweight of the machine, applying downward force on the soil surface, compressing the soil particles. The only way to change the effective compaction force is by adding or subtracting the weight of the machine. Static compaction

Backfill | Definition of Backfill by Merriam-Webster

Backfill definition is - to refill (something, such as an excavation) usually with excavated material. How to use backfill in a sentence. to refill (something, such …

Excavating, Backfilling & Compacting | Midvale, UT

A. Contractor shall provide all materials, labor, equipment, transportation and other items required to perform excavation, backfilling and compaction Work as indicated or as required to accomplish Work of other sections of these specifications.

What is the American code for backfilling & compaction ...

AASHTO (the American Association of State Highway and Transportation Officials) has some specifications, as do the various Building Codes adopted by the individual states. But in the USA, the individual client or designer issues their own specific...

Does Rain Hurt Compaction? - Geotechnical engineering ...

Thanks for your reply. So what you mean is that even the soil is already compacted, its maximum dry density can change significantly when exposed to rain prior to field density test? Or you mean that rain can have an effect if the backfill material was exposed to it prior to compaction?

What is the definition of compaction? | AnswersDrive

What is backfilling and compaction? Backfilling is the process of putting soil back inside a trench or in a foundation when the excavation has been completed. The backfill process requires skills and knowledge on the specifications, contract requirements and understanding soil conditions.

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Grading | backfilling | dry foundations | crawlspaces ...

Proper backfilling and landscape grading can go a long way toward achieving that goal. The grade around the house is to the foundation as the siding is to the housewrap and sheathing: It needs to shed as much bulk water as possible before the water reaches those underlying elements.

Part 7 COMPACTION METHODS

The number of passes needed to achieve the desired compaction depends on the lift thickness, contact pressure, and soil moisture content. Most contractors get a …

What is compaction test of soil? | AnswersDrive

What is backfilling and compaction? Backfilling is the process of putting soil back inside a trench or in a foundation when the excavation has been completed. The backfill process requires skills and knowledge on the specifications, contract requirements and understanding soil conditions.

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Jetting and Flooding of Granular Backfill Materials

Jetting and Flooding of Granular Backfill Materials G ranular backfill materials on highway projects are often compacted by mechanical methods. This requires the contractor to place backfill material into loose lifts of varying thickness and use compaction equipment to reduce air …

02210 - TRENCHING, BACKFILLING AND COMPACTION …

Trenching, Backfilling and Compaction of Utilities Page 2.3-3 City of Fairfax, VA – Public Facilities Manual February 2017 designated on the plans and in the Contract Documents, the Contractor shall

INSTALLATION OF PIPE AND TESTING OF PIPE BACKFILL

When standing water is in pipe foundation area, No. 57 stone can be used as a backfill in the sub‐foundation. No. 57 stone MUST be capped with a minimum of 4” crusher run prior to placement of pipe or box culvert. Compaction testing on No. 57 stone is not required; seat stone in trench.

Backfill - What does backfill stand for? The Free Dictionary

Looking for online definition of backfill or what backfill stands for? backfill is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms Backfill - What does backfill stand for?

02223 - TRENCHING, BACKFILLING AND COMPACTING

6. Make excavation for compaction tests at the locations and to the depths designated by the AGENCY. Backfill and re-compact the excavations at completion of testing. When tests indicate that the compaction is less than the specified relative compaction, rework and retest those areas until the specified relative compaction has been obtained.

Backfilling Foundation

Section 02220 Trenching, Backfilling and Compaction of Utilities Page 02220-3 City of Lynchburg, VA Manual of Specifications and Standard Details December 2016 G. Backfilling a foundation is an important step in building a home, but it can come with pitfalls.

Section 1100 Grading

Compaction of structure backfill by rolling will be permitted provided the desired compaction is obtained and damage to the structure is prevented. Compaction of structure backfill by inundation with water will not be permitted. No tamped, rolled, or otherwise mechanically compacted backfill shall be deposited or compacted in water.

BULLETIN No. 914 – PIPE AND FITTING INSTALLATION …

Compaction of the primary initial backfill should be conducted at or near the materials optimum moisture content. (See page 6 for definition of primary initial backfill.) The compaction should be effected in layers (or lifts) that are brought up evenly on both sides of the pipe. Each lift should be thoroughly

Index [codot.gov]

760 Conformity to the Contract of Superpave Performance Graded Binders ..... 37 Conformity to Roadway Smoothness Criteria ..... 48,60

SIDD INSTALLATIONS OLD VS. NEW

wide range of backfill materials and compaction levels from a native dumped material having no applied compaction effort to a high quality material having a 95% standard proctor compaction. In considering these new installations and design factors please keep in mind, voids

Backfill Material Specification – Basic Things to Consider ...

As an overview with actual backfilling activities, layer by layer of compaction is being conducted at the site, then being tested to the laboratory, and can proceed upon the satisfaction of the engineer with the result of the test. The required minimum degree of compaction …

Backfill | Definition of Backfill by Lexico

‘Compaction of backfill materials is normally carried out by mechanical means, to achieve a specified percentage of compactivity.’ ‘Two versions of this compaction tool are available: a smooth drum for sand, gravel, pea rock, and asphalt patching and a padded drum for heavy soils, clay, and clay-based backfill.’ ‘It also requires adequate,...

Soil Compaction: Meaning, Compaction, Methods and …

Compaction means pressing the soil particles close to each other by mechanical methods. During compaction air is expelled from the void spaces in the soil mass and, …

What is Backfill? (with pictures)

Feb 03, 2020 · Usually, the backfilling is a combination of stone, soil and other materials that were left over after the main portion of the project was completed. However, the backfill may be transported to the building site if necessary.

Method Statement for Excavation Works | Quality Assurance ...

Jan 22, 2014 · 5.3.1 After completion of the compaction under blinding, tie beams and ground slab. Backfilling shall commence using similar excavated material. Care shall be taken to remove bolder, vegetations and any other deleterious materials.

SECTION 6 EXCAVATION, TRENCHING, BACKFILLING, …

As backfilling proceeds, the entire mass shall be compacted with a mechanical compactors, provided, however, in all locations where plastic soils are encountered, the backfill material shall not be placed until the moisture content is optimum to obtain maximum density when tamped into place with mechanical

Backfill - What does backfill stand for? The Free Dictionary

Backfill Specialists, with an annual turnover of some EUR18m (USD23. The use of reinforced backfill with a minimum required compressive strength, the minimum subsidence was developed and the substantial improvement of mining conditions was achieved.

SECTION 5 TRENCH BEDDING, BACKFILL & EXCAVATION

Native backfill is defined as granular soil excavated from a trench and it shall be free of ice, clay, debris and excessive organic matter. Native backfill soil shall not consist of expansive clay. Native backfill shall conform to the requirements for Class E Backfill as defined in …

Excavation and Backfilling of Soil - Work Sequence and ...

Excavation and backfilling of soil is a very important part of construction process, and care must be taken while excavation in safety perspective. Different soil layers may be encountered while excavation, dewatering may be needed sometimes.

How to Backfill your Inground Swimming Pool | InTheSwim ...

May 29, 2012 · With the proper backfill material onsite, we are ready to begin the process of backfilling our inground pool. You could use a shovels and several workers, but it’s probably easier, faster and cheaper to bring in a Skid Steer loader, Bucket loader or a …

Backfill vs Fill - What's the difference? | WikiDiff

is that backfill is to refill a hole with the material dug out of it while fill is to occupy fully, to take up all of. As nouns the difference between backfill and fill is that backfill is the material that has been used to refill an excavation while fill is (after a possessive) a sufficient or more than sufficient amount.

Compaction Explained for retaining walls

compaction requirements ( ie: 95% of Standard Proctor ) but little else is mentioned on the importance of compaction. We will discuss what compaction is, how to measure it, how to achieve it, and why it is so important. • Compaction is the process of rearranging soils to consolidate the space occupied by the soil

CONSTRUCTION SPECIFICATION FOR TRENCHING, …

Backfilling means the operation of filling the trench with bedding, cover, and backfill material or embedment and backfill material. Backfill Material means fill material used above the embedment or cover material and below the lower of the subgrade or finished grade or the original ground.

EXCAVATION AND BACKFILL FOR STRUCTURES

As soon as practical, backfill the excavation after placement of the permanent structure. Use backfill free from stones large enough to interfere with compaction; large or frozen lumps that will not break down readily under compaction; and wood or other extraneous material. Obtain backfill material from excavation or from other sources.

STRUCTURAL EXCAVATION AND BACKFILL - Section 802

for uniformity of compaction, unstable areas, etc. the contractor shall correct deficiencies prior to proceeding with box culvert construction. BACKFILLING Compaction of backfill material by flooding will not be permitted. Box culverts shall be backfilled with selected soil conforming to Specification Subsection

Intro to Foundations Fill Backfilling R

is preferable to specify details of compaction procedures, such as placement water content, lift thickness, type of equipment, and number of passes. When the source of the fill or the type of compaction equipment is not known beforehand, specifications should be based on the desired compaction result, with a specified minimum number of

Civil Engineering Construction Inspection Checklist

Backfill Material and Compaction: Inspector verifies the quality of the backfill, the maximum lift height for the size of the trench, the adequacy and uniformity of the compaction, and that the corrected type of backfill is used for the location of the trench. Material testing in …

Native Backfill - What Does Native Backfill Mean in ...

What is Native Backfill Definition of Native Backfill in Construction. The term native backfill is used on site documents and specifications to indicate a backfill comprised of material that is excavated from the project site. Native backfill is a very efficient and economical method of backfilling a project.

Field Density Test (FDT) 7 Methods and their Comparison

Aug 30, 2018 · FDT Meaning in Construction FDT is an acronym for Field Density Test. FDT is a in-situ density test of soil that is used in various types of construction works like highways, DAM construction, Embankment filling, and backfilling in order to access the quality of density achieved at site.

205 - EXCAVATION AND EMBANKMENT FOR …

SECTION 205 EXCAVATION AND EMBANKMENT FOR HIGHWAYS 205.1 DESCRIPTION Excavate, haul, place, remove and dispose of the specified materials. Construct the embankments as specified in the Contract Documents. Compact the earthwork according to the requirements for the type of compaction and moisture range specified in the Contract Documents.

9 Special Fill and Backfill

materials, compaction, placement, and measurement of special fill and backfill. B BORROW AND STRUCTURE BACKFILL Placing B Borrow and structure backfill consists of backfilling excavated or displaced peat deposits; filling up to designated elevations of spaces excavated for structures and not occupied by permanent work;

E0-1181:GENERAL SPECIFICATION FOR BACKFILLING OF …

compaction. If an in-place density test indicates insufficient compaction, the Contractor shall re-compact the area in question until the backfill is compacted to the requirements set forth in paragraph 4.1.1. The Contractor may elect to take additional tests 5 feet on both sides of the test which failed, and average the values of the three readings.

An Intro to Fill and Backfill for Structures R

2.3 compaction requirements 2.4 placing and control of backfill 2.5 fill settlements 2.6 hydraulic fills 3. backfill 3.1 introduction 3.2 planning and design of structures and excavations to accommodate backfill operations 3.3 evaluation, design and processing of backfill materials 3.4 selection of backfilll materials

How to use "backfill" in a sentence

The backfill is of the same sediment as around the gallery and the proboscis cut is straight. Compaction of backfill materials is normally carried out by mechanical means, to achieve a …

Tamping backfill? - JLC-Online Forums

Dec 10, 2009 · Re: Tamping backfill? I know it’s not quite the same thing but we build “pads†by excavating 12†-36†of existing soil and filling with select fill, compacted in 8†lifts. Each lift has to be tested by geotechnical lab. The best compaction is with a vibratory sheep’s foot roller.

02210 - TRENCHING, BACKFILLING AND …

02275 Trenching, Backfilling and Compaction of Utilities Page 02275-3 2) Final Backfill (Common Trench Backfill): Backfill placed over the initial backfill to fill a trench. In terms of volume, backfill is defined as a compacted post-construction volume

DIVISION 2 - 02200 Excavation, Grading, and Backfill

02200 EXCAVATION, GRADING, AND BACKFILL PART 1 – GENERAL 1.1 WORK A. Provide all related materials, equipment, and labor required to complete the work specified. B. All excavation, trenching, compaction, backfill, and landscaping shall be as listed in the Scope and as specified herein. 1.2 QUALITY OF WORK

How to Compact Granular Soils

Soil Compaction Technology Advances Technology is also improving in the area of compacting granular soils. Equipment is available for compaction that uses a monitoring system and sensors to measure the soil stiffness and generate a value related to the compaction progress on how good or bad the process is …

02210 - TRENCHING, BACKFILLING AND COMPACTION …

Trenching, Backfilling and Compaction of Utilities Page 02210-1 Town of Wake Forest Manual of Specifications, Standards & Design May 2014 02210 - TRENCHING, BACKFILLING AND COMPACTION OF UTILITIES (Last revised 3/27/14) SELECTED LINKS TO SECTIONS WITHIN THIS SPECIFICATION Part 1- General Compaction Requirements Shoring

02210 - TRENCHING, BACKFILLING AND …

Section 02220 Trenching, Backfilling and Compaction of Utilities Page 02220-4 City of Lynchburg, VA Manual of Specifications and Standard Details December 2016 1.5 QUALITY ASSURANCE A. Geotechnical Testing Agency Qualifications: An independent testing agency qualified according to ASTM E 329 to conduct soil materials and rock-definition