STANDARD SPECIFICATION PART 1 - GENERAL
Specifications for structural backfill material. 2.07 CONCRETE FOR BELOW GROUND INSTALLATIONS A. Concrete for anchors, collars, cradles, encasements, supports, and thrust blocks shall be Class A for reinforced items and Class C for unreinforced items per Standard Specification Section 03000, except use rapid set concrete mix where indicated.
Crushed Recycled Concrete in the Tacoma Region
Crushed Recycled Concrete. Uses. Used primarily on roadways where heavier equipment or traffic will be using the road surface. Works well in wet conditions. Bridges areas and provides some stability in muddy conditions. Specs. Made from recycled concrete. Minimum …
Should I set fence posts in dirt, gravel, crushed rock, or ...
If you use concrete it's still the dirt around the concrete that supports the fence; you have just added 30 pounds of concrete to the bottom of it. If your soil has good percolation and water can settle away quickly (as I do where I am in Wisconsin) I prefer to use sand most of the way up and bout 4 - …
Recycled Concrete Aggregate | Crushed Concrete Aggregate ...
Recycled Concrete Aggregate is that the use of debris from dismantled concrete structures. utilization is cheaper and a lot of ecological than truckage debris to a lowland.. Crushed debris is often used for road gravel, revetments, holding walls, landscaping gravel, or staple for brand spanking new concrete. giant items are often used as bricks or slabs or incorporated with new concrete into ...
PART 00400 - DRAINAGE AND SEWERS Section 00405 - …
material is not suitable, use another class of backfill as directed. (b) Class B Backfill - Use granular material consisting of gravel or crushed rock meeting the requirements of Section 00641. Material shall be free from organic material, with maximum particle size not exceeding 3 inches, (1 inch in pipe zone).
What can I use as a backfill for a retaining wall?
Crushed rock or gravel is used as backfill for block walls. Start with a base layer of compacted native soil about 2 to 3 inches deep and 6 to 12 inches wide. Fill the rest of the space with crushed rock or gravel up to 6 inches from the top of the wall.
Section 3010 - Trench Excavation & Backfill
2. Use only as topsoil outside of the pavement, unless otherwise specified or allowed by the Engineer. 3. Do not use in the pipe embedment zone. Table 3010.05: Class V Material Type Soil Group Symbol ASTM D 2487 Description Organic Soils (unsuitable for backfill) Organic clays of …
Brecksville-Broadview Hts. Middle School SECTION 31 2000 ...
stone, and natural or crushed sand; or recycled crushed concrete, asphalt, or brick; ASTM D 2940; with at least 90 percent passing a 1-1/2-inch (37.5-mm) sieve and not more than 12 percent passing a No. 200 (0.075-mm) sieve or fine grained soils as note in soils report.
Backfilling Pipe Trenches - constructionmentor.net
The ideal material for pipe trench backfill under pavements is crushed limestone with rock ranging from fines all the way up to 2-1/2″. Properly graded crushed limestone has just the right balance of aggregate sizes and square shaped aggregate to ensure interlocking of the particles which will ultimately maximize density, strength, and resist ...
Aggregates - Webb Concrete
Some common backfill materials are round stones like pea gravel and coarse-grained soil, which are mixed with both gravel and sand. Concrete Sand. Concrete sand is a small stone composed of gneiss, granite rock or limestone. The quality is generally crushed and then washed to ensure there are no big pieces of rock in the sand.
Frequently Asked Questions :: Radiant Pools
Backfill as the pool is filling with water, manually compacting every 8"-12" (Do not use compacting machinery.) Hand backfill around skimmers, lights and inlets. Be sure that piping is buried, but not crushed. Although not recommended, if backfilling completely before pool is filled, the inside of the pool straight walls must be crossed ...
Potential Use of Crushed Concrete and Recycled Asphalt ...
MSE walls with crushed concrete backfill should include adequate drains and high permittivity filter fabrics behind the wall to avoid drainage problems. 2. Concrete structures that have suffered sulfate attack cannot be crushed and used as backfill in MSE walls.
Crushed concrete backfill - Earthwork/grading …
RE: Crushed concrete backfill. civilperson (Structural) 26 Jan 07 10:52. Side wall pressures will be about the same with the angular aggregate, (crushed concrete) as with the soil. The Ko, will probably be less for the concrete fill but the unit weight will be higher giving comparable horizontal pressures. Why not fill both sides of the wall ...
Using 3/4" minus or similar material for backfill | Heavy ...
I am a concrete recycler in NC . we recommend using recycled our #5 stone("11/2 to"1 clean stone)for backfilling walls,voids,foundations ect.it's cheaper than backfilling with dirt because you don't have to compact it(no labor) just dump it in . just hauled 120 tons thurs to backfill a porch .the plumbers do not like the rock against there PVC pipes so we make a "1/2 minus fines for ...
Characterization of Crushed Concrete Materials for Paving ...
Although the use of crushed concrete materials generally resulted in increased water demand and decreased workability, test results indicated that crushed concrete materials are highly feasible to use in the selected applications. However, CPCC fines were determined not to be suitable for the reproduction of portland cement concrete because the ...
Backfill for Seawalls & Retaining Walls - Superior Groundcover
Using crushed concrete aggregate or stone as backfill. Crushed concrete aggregate is made up of different sizes of crushed concrete. The combination of sizes gives the aggregate certain properties. You can read our article on crushed concrete to learn more about the different types of aggregates. Crushed concrete is a great sustainable option ...
DEPARTMENT OF TRANSPORTATION
Use material meeting the requirements of Section 800, Class A or B aggregate, and SOP 1. Crushed concrete may be used provided it meets the requirements of Section 800 that are applicable to Group 2 Aggregates. Do not use backfill aggregate containing soil or decomposed rock. 2. Gradation Use material meeting the following gradation requirements:
SECTION 10 - TRENCHING AND BACKFILLING
(1.) Crushed or recycled concrete shall not be used as backfill. (2.) Fly ash shall not be used as pipe backfill. 10.2.3 Structural Backfill A. Structural backfill shall meet requirements for coarse aggregate, Size No. 57 for non-pressure pipe in accordance with VDOT Road and Bridge Specifications.
Best Backfill for a Retaining Wall - DIY Retaining Wall
This includes 3/4″ crushed rock, #57 or #78 stone, clean crushed limestone, or Class I or II backfill. Retained Soil. Ideally, you want to use what you have on your property. Do not use clay, organic material such as decomposing mulch, garden soil, top soil, or any other soft soil.
Pages - Use of Crushed Recycled Glass in the Construction ...
The potential to mix crushed glass cullet into aggregates exists for many applications including roadway and parking lot base or leveling courses, glasphalt, pipe bedding and backfill, drainage material, fill and concrete. Using a recycled product, like crushed glass, can have environmental benefits to projects seeking Leadership in Energy and ...
How do you install geotextile fabric behind retaining wall?
Read in-depth answer here. Also know, what do you put behind a retaining wall? Backfill refers to the dirt behind the wall.In order to provide proper drainage, at least 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall.Compacted native soil can be used to backfill the rest of the space behind the wall.
02255-Bedding, Backfill, and Embankment Materials
single source. Uncrushed gravel are not acceptable materials for embedment where crushed stone is shown on the applicable utility embedment drawing details. 6. Crushed Concrete: Crushed concrete is an acceptable substitute for crushed stone as utility backfill. Gradation and quality control test requirements are the same as crushed stone.
Crushed concrete backfill - Earthwork/grading engineering ...
RE: Crushed concrete backfill. civilperson (Structural) 26 Jan 07 10:52. Side wall pressures will be about the same with the angular aggregate, (crushed concrete) as with the soil. The Ko, will probably be less for the concrete fill but the unit weight will be higher giving comparable horizontal pressures. Why not fill both sides of the wall ...
Do-It-Yourself Retaining Wall Installation Instructions ...
You should use a crushed stone or crushed concrete for the base material. The base should consist of angular, sharp edged particles, not rounded as they will sink into the ground when under pressure. Using round particles will affect the wall in the future as they move underground. ... The backfill will help with water drainage when the wall is ...
Pipe Bedding and Backfill
Backfill The backfill is the material used to refill the trench after the pipe and the embedment have been placed. Cover The cover is the depth of backfill over the top of the pipe. Even though some specifications, manuals, and handbooks use 'unit weight," the …
SECTION A INSTALLATION - Keystone Walls
% inch [13-19mm] crushed stone). Concrete is also acceptable to use as a leveling pad. Step the leveling pad up in 8 inch (203mm) increments at the appropriate elevation change in the foundation. Do not use rounded material, i.e. PEA GRAVEL or SAND for leveling pad material. Base Leveling Pad (Well-compacted granular fill) Step 3 Finished grade ...
02317-Excavation and Backfill for Structures
Drawings. Use existing material that qualifies as select material, unless indicated otherwise. Deposit backfill in uniform layers and compact each layer as specified. B Do not place backfill against concrete walls or similar structures until laboratory test breaks indicate that the concrete has reached a minimum of 85 percent of the
Section 812 Backfill Materials
Section 812—Backfill Materials Page 3 1 Crushed Stone Use a material manufactured from Class A or B stone free of soil overburden and having a soundness loss of not more than 15 percent. 2. Natural Sand Use material that consists of strong, hard, durable particles, is non-plastic, and has a durability index of at least 70. 3. Gradation
Can I use broken concrete as fill? - TreeHozz.com
4/5 (111 Views . 17 Votes) Broken Concrete and Clean Fill Projects. Whether using asphalt or any other type of cement to pave your new driveway, pieces of broken concrete can be implemented as a solid filler while saving you some time, trouble, and money as well. Find out everything you need to know about it here.
Proper Subgrade Prep| Concrete Construction Magazine
All too often, builders do not adequately prepare the subgrade for concrete foundations, sidewalks, driveways, or patios. The concrete contractor is responsible for ensuring that granular backfill receives proper compaction, density, and moisture levels prior to the placement of concrete.
