2. The riprap designation and total thickness of riprap shall be as shown on the DRAWINGS. The maximum stone size shall not be larger than the thickness of the riprap. 3. Neither width nor thickness of a single stone of riprap shall be less than one-third (1/3) of its length. 4.

From my experience it depends a lot on how is the compaction done. If you are compacting road crush with a vibratory plate you will get about 10 to 15% compaction. (This is based on you having a stable compacted base first. If you are putting the road crush on top of top soil you will lose more to compaction.)

Crusher run compacts best when damp. As you have found out (sorry I was unavailable when you asked), 3" lifts means you lay 3" of material, compact that, then repeat as needed to get to your finished height. If you want it really compacted, you do 1" lifts and run over it with a sheep's foot compactor. You can get 99% compaction that way.

Generally, the lift thickness varies between 15-30cm based on soil type, and the majority of compaction is achieved through the first five passes. One can also use field tests and …

The crusher run road base to be placed on top of the sub base shall consisting of crushed aggregate laid in layers each of thickness not exceeding 200mm …

Effective with the November 2022 Letting 120 2023 Standard Specifications [3] Required as specified for the individual component materials defined in columns 2 - 6 of the table before blending. [4] For base placed between old and new pavements, use crushed stone, crushed gravel, or crushed concrete with a plasticity index of 3 or less. [5] >=75 percent by count …

were developed for soils.The modified Proctor compaction test uses 56,000 ft-lb f/ft3 (2,700 kN-m/m3) versus 12,300 ft-lb f/ft3 (600 kN-m/m3) for the standard Proctor test.An important basis for the Proctor compaction test, as stated in the test standards, is that the standards only apply to soil containing less than 30 % retained on the 3/4 ...

Crusher runs gravel costs an average of $0.40 per square foot, making it one of the most affordable driveway materials. A ton of crush and run gravel will only cost you about $28. Meanwhile, if you're hiring a professional to get the job done, you'll spend about $30 per hour in labor costs.

The 8 to 15 ton (static drum weight) smooth steel drum vibratory compaction rollers generally have an effective rockfill compaction lift thickness of between 1.5 to 3 ft (0.5 …

California Bearing Ratio (CBR) test is run on soils to gauge the strength of the subgrade as compared to a dense graded aggregate. CBR is one of the major factors used in …

Compaction characteristics of crusher dust under modified compaction test have an Optimum Moisture Content of 11% and Maximum Dry Density of 2.02 g/cc. From the compaction curve it can also be seen that crusher dust attains higher densities with wider range of moisture contents and increases the workability at high moisture contents.

Prior to compacting a large area fill, the soil is bro u g h t to the site by hauling equipment and spread in about 8- to 10-inch lifts so that the finished compacted layer will be 6 inches thick. Clay cannot be properly compacted into lifts thicker than 6 inches.

Field Density Compaction Test Results. 3. Contract Number. 4. Soils Technician's Name and Employer. ... Size: Six inch width, minimum 5 mils thickness. b. : Two lines, minimum 3/4 inch high lettering on each line, repeated continuously along length of tape at intervals no greater than 3 feet. ... d. Crushed stone, crusher run (CR-6 ...

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Generally speaking, compacted crusher run should not be thicker than 4 inches. If the desired thickness of the crusher run depends on the amount of compaction that is …

1-G, Grading Test . 1-P, Plasticity Test (LL, PL, PI) 1-C, Laboratory Compaction Test . For each 500 sq. m. of each layer of compacted fill or fraction thereof at least one group of three insitu - density tests. The layers shall be placed not exceeding 200 mm in loose measurement or based on the result of compaction trials.

If you are compacting road crush with a vibratory plate you will get about 10 to 15% compaction. (This is based on you having a stable compacted base first. If you are putting the road crush on top of top soil you will lose more to compaction.) If you use a jumping jack, about 20% would be accurate.

5.4 Compaction. After the mix has been laid on site to the required thickness, grade and camber, then compaction is carried out with suitable roller to the full depth. For a thickness up to 200mm in a single layer, compaction shall be done with vibratory roller of 80 to 100 KN static weights with plain drum or equivalent capacity roller.

Photo 6: Test fill control points cross-marked for survey and spaced 1 roller width apart for centerline compaction. Photo 7: Test fill settlement points are remarked for survey after 2 vibratory compaction roller passes. Photo 8: Test fill surface becomes more level with each pass of the vibratory compaction roller. Lift Thickness

following ASTM D1556, ASTM D 6938, or ASTM D2937 at minimum rate of 1 test for every 100 feet of fill along main trench and at every lateral trench, structure and valve box in …

Most compactors come with a compaction rating. A common trick used in the industry is, take the max compaction depth rating (example, 24 inches) and divide it by 3 (24/3=8). If this number ends up being larger than the layer of soil being placed (say, 4 inches), you run the risk of over compacting.

The method is applicable for natural or compacted fine to coarse-grained soil layers exceeding150mm, but not exceeding 250mm in thickness. As a compaction control, …

Below is the calculation of the degree of compaction. DOC = (1.64/ 1.7) x 100 Therefore, Degree of compaction, DOC = 96.5 % The compaction test is passed …

Crusher-run gravel compacts well but does not drain very fast -- at least not as fast as 3/4-inch crushed stone (no fines). Talk to a soils engineer if you are worried -- but in my experience, either crusher-run gravel (compacted) or 3/4-inch crushed stone can be used under footings. So can rigid . An engineer may disagree.

Below is the calculation of the degree of compaction. DOC = (1.64/ 1.7) x 100 Therefore, Degree of compaction, DOC = 96.5 % The compaction test is passed and satisfactory because 96.5 percent is higher than the limit of 95 percent. The succeeding activity can now proceed.

The 8 to 15 ton (static drum weight) smooth steel drum vibratory compaction rollers generally have an effective rockfill compaction lift thickness of between 1.5 to 3 ft (0.5 to 1 m) in about 4 roller passes on moistened rockfill.

Compaction test shall be conducted by the technician in the present of the Engineer by the certified nuclear gauge to ensure that the compaction achieves the 95% of MDD and test result shall be submitted to the Engineer for the documentation. 7. Layer thickness and testing frequency shall be as shown in below table: Location / Material: …

meet the specifications and to secure the proper moisture content for compaction. 208–3.4 PLACING. Place aggregate base material on the prepared underlying course and compact in layers of the thickness shown on the Plans. Deposit and spread the material where designated and progress continuously without breaks.